SGN / Signing Day Sports, Inc. - SEC-arkivering, Årsberetning, Fuldmagtserklæring

Signing Day Sports, Inc.
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CIK 1898474
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Signing Day Sports, Inc.
SEC Filings (Chronological Order)
Denne side giver en komplet, kronologisk liste over SEC-arkiveringer, eksklusive ejerskabsregistreringer, som vi leverer andre steder.
March 27, 2026 15-15D

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 333-271951 333-276717 333-280700 333-281322 333-289965 333-292569 333-283559

March 27, 2026 15-15D

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 333-271951 333-276717 333-280700 333-281322 333-289965 333-292569 333-283559

March 27, 2026 15-15D

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 333-271951 333-276717 333-280700 333-281322 333-289965 333-292569 333-283559

March 27, 2026 15-15D

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 333-271951 333-276717 333-280700 333-281322 333-289965 333-292569 333-283559

March 27, 2026 15-15D

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 333-271951 333-276717 333-280700 333-281322 333-289965 333-292569 333-283559

March 27, 2026 15-15D

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 333-271951 333-276717 333-280700 333-281322 333-289965 333-292569 333-283559

March 27, 2026 15-15D

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 333-271951 333-276717 333-280700 333-281322 333-289965 333-292569 333-283559

March 27, 2026 15-15D

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 333-271951 333-276717 333-280700 333-281322 333-289965 333-292569 333-283559

March 27, 2026 15-15D

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 333-271951 333-276717 333-280700 333-281322 333-289965 333-292569 333-283559

March 27, 2026 15-15D

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 333-271951 333-276717 333-280700 333-281322 333-289965 333-292569 333-283559

March 27, 2026 15-15D

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 333-271951 333-276717 333-280700 333-281322 333-289965 333-292569 333-283559

March 27, 2026 15-15D

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 333-271951 333-276717 333-280700 333-281322 333-289965 333-292569 333-283559

March 19, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 13, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 13, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

March 17, 2026 S-8 POS

As filed with the Securities and Exchange Commission on March 16, 2026

As filed with the Securities and Exchange Commission on March 16, 2026 Registration No.

March 17, 2026 S-8 POS

As filed with the Securities and Exchange Commission on March 16, 2026

As filed with the Securities and Exchange Commission on March 16, 2026 Registration No.

March 17, 2026 S-8 POS

As filed with the Securities and Exchange Commission on March 16, 2026

As filed with the Securities and Exchange Commission on March 16, 2026 Registration No.

March 17, 2026 POS AM

As filed with the Securities and Exchange Commission on March 16, 2026

As filed with the Securities and Exchange Commission on March 16, 2026 Registration No.

March 17, 2026 S-8 POS

As filed with the Securities and Exchange Commission on March 16, 2026

As filed with the Securities and Exchange Commission on March 16, 2026 Registration No.

March 17, 2026 POS AM

As filed with the Securities and Exchange Commission on March 16, 2026

As filed with the Securities and Exchange Commission on March 16, 2026 Registration No.

March 17, 2026 POS AM

As filed with the Securities and Exchange Commission on March 16, 2026

As filed with the Securities and Exchange Commission on March 16, 2026 Registration No.

March 17, 2026 POS AM

As filed with the Securities and Exchange Commission on March 16, 2026

As filed with the Securities and Exchange Commission on March 16, 2026 Registration No.

March 17, 2026 POS AM

As filed with the Securities and Exchange Commission on March 16, 2026

As filed with the Securities and Exchange Commission on March 16, 2026 Registration No.

March 17, 2026 S-8 POS

As filed with the Securities and Exchange Commission on March 16, 2026

As filed with the Securities and Exchange Commission on March 16, 2026 Registration No.

March 17, 2026 POS AM

As filed with the Securities and Exchange Commission on March 16, 2026

As filed with the Securities and Exchange Commission on March 16, 2026 Registration No.

March 17, 2026 POS AM

As filed with the Securities and Exchange Commission on March 16, 2026

As filed with the Securities and Exchange Commission on March 16, 2026 Registration No.

March 16, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 16, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 16, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

March 16, 2026 EX-99.1

Signing Day Sports and BlockchAIn Consummate Business Combination BlockchAIn Inc. Anticipated to Commence Trading Under Ticker “AIB” on NYSE American on March 17, 2026 at 9:30 a.m. EDT

Exhibit 99.1 Signing Day Sports and BlockchAIn Consummate Business Combination BlockchAIn Inc. Anticipated to Commence Trading Under Ticker “AIB” on NYSE American on March 17, 2026 at 9:30 a.m. EDT SCOTTSDALE, AZ and NEW YORK, NY / GLOBE NEWSWIRE / March 16, 2026 / – Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), a technology platform designed to help studen

March 16, 2026 EX-99.1

Signing Day Sports and BlockchAIn Provide Update on Expected Ticker Symbol Transition and Common Stock Trading Schedule Signing Day Sports Common Stock Expected to Continue Trading on NYSE American Under “SGN” Through March 16, 2026 BlockchAIn Inc. C

Exhibit 99.1 Signing Day Sports and BlockchAIn Provide Update on Expected Ticker Symbol Transition and Common Stock Trading Schedule Signing Day Sports Common Stock Expected to Continue Trading on NYSE American Under “SGN” Through March 16, 2026 BlockchAIn Inc. Common Stock Expected to Begin Trading Under “AIB” on March 17, 2026 at 9:30 a.m. EDT SCOTTSDALE, AZ and NEW YORK, NY – March 16, 2026 (GL

March 16, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 16, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 16, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

March 13, 2026 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 13, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 13, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

March 13, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 13, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 13, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

March 13, 2026 EX-99.1

Signing Day Sports Stockholders Approve Previously Announced Business Combination with BlockchAIn Digital Infrastructure at Today’s Special Meeting of Stockholders Closing expected on March 16, 2026 BlockchAIn Inc. common stock is expected to begin t

Exhibit 99.1 Signing Day Sports Stockholders Approve Previously Announced Business Combination with BlockchAIn Digital Infrastructure at Today’s Special Meeting of Stockholders Closing expected on March 16, 2026 BlockchAIn Inc. common stock is expected to begin trading on the NYSE American under the ticker symbol “AIB” on March 17, 2026 at 9:30am EDT SCOTTSDALE, AZ / GLOBE NEWSWIRE / March 13, 202

March 13, 2026 EX-99.1

SGN Announces BlockchAIn Has Signed LOI for 5 MW AI Infrastructure Deployment, Over $100 Million in Expected Contract Value During Initial Term

Exhibit 99.1 SGN Announces BlockchAIn Has Signed LOI for 5 MW AI Infrastructure Deployment, Over $100 Million in Expected Contract Value During Initial Term Scottsdale, AZ, March 13, 2026 (GLOBE NEWSWIRE) - Signing Day Sports, Inc. (“Signing Day Sports”, “SGN” or the “Company”) (NYSE American: SGN), in connection with the Company’s previously announced proposed business combination (the “Business

March 13, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 13, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 13, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

March 13, 2026 EX-99.1

SGN Announces BlockchAIn Has Signed LOI for 5 MW AI Infrastructure Deployment, Over $100 Million in Expected Contract Value During Initial Term

Exhibit 99.1 SGN Announces BlockchAIn Has Signed LOI for 5 MW AI Infrastructure Deployment, Over $100 Million in Expected Contract Value During Initial Term Scottsdale, AZ, March 13, 2026 (GLOBE NEWSWIRE) - Signing Day Sports, Inc. (“Signing Day Sports”, “SGN” or the “Company”) (NYSE American: SGN), in connection with the Company’s previously announced proposed business combination (the “Business

March 13, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) March 13, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) March 13, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

March 11, 2026 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 11, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 11, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

March 11, 2026 EX-99.1

SGN Announces BlockchAIn Has Established a Collaboration with Supermicro for AI Data Center Hardware Supermicro's AI-optimized compute platforms supports BlockchAIn's U.S. data center development pipeline

Exhibit 99.1 SGN Announces BlockchAIn Has Established a Collaboration with Supermicro for AI Data Center Hardware Supermicro's AI-optimized compute platforms supports BlockchAIn's U.S. data center development pipeline SCOTTSDALE, AZ – March 11, 2026 – Signing Day Sports, Inc. (“Signing Day Sports”, “SGN” or the “Company”) (NYSE American: SGN), in connection with the Company’s previously announced

March 11, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 11, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 11, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

March 11, 2026 EX-99.1

SGN Announces BlockchAIn Has Established a Collaboration with Supermicro for AI Data Center Hardware Supermicro's AI-optimized compute platforms supports BlockchAIn's U.S. data center development pipeline

Exhibit 99.1 SGN Announces BlockchAIn Has Established a Collaboration with Supermicro for AI Data Center Hardware Supermicro's AI-optimized compute platforms supports BlockchAIn's U.S. data center development pipeline SCOTTSDALE, AZ – March 11, 2026 – Signing Day Sports, Inc. (“Signing Day Sports”, “SGN” or the “Company”) (NYSE American: SGN), in connection with the Company’s previously announced

March 10, 2026 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 10, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 10, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

March 10, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 10, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 10, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

March 10, 2026 EX-99.1

Signing Day Sports Announces Anticipated Closing Date for Business Combination with BlockchAIn Digital Infrastructure BlockchAIn Digital Infrastructure Shares Expected to Begin Trading on March 16, 2026 on NYSE American Under Symbol “AIB” Following C

Exhibit 99.1 Signing Day Sports Announces Anticipated Closing Date for Business Combination with BlockchAIn Digital Infrastructure BlockchAIn Digital Infrastructure Shares Expected to Begin Trading on March 16, 2026 on NYSE American Under Symbol “AIB” Following Completion of Proposed Business Combination SCOTTSDALE, AZ / GLOBE NEWSWIRE / March 10, 2026 / – Signing Day Sports, Inc. (“Signing Day Sp

March 10, 2026 EX-99.1

Signing Day Sports Announces Anticipated Closing Date for Business Combination with BlockchAIn Digital Infrastructure BlockchAIn Digital Infrastructure Shares Expected to Begin Trading on March 16, 2026 on NYSE American Under Symbol “AIB” Following C

Exhibit 99.1 Signing Day Sports Announces Anticipated Closing Date for Business Combination with BlockchAIn Digital Infrastructure BlockchAIn Digital Infrastructure Shares Expected to Begin Trading on March 16, 2026 on NYSE American Under Symbol “AIB” Following Completion of Proposed Business Combination SCOTTSDALE, AZ / GLOBE NEWSWIRE / March 10, 2026 / – Signing Day Sports, Inc. (“Signing Day Sp

March 9, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 9, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 9, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

March 9, 2026 EX-99.1

Signing Day Sports Highlights BlockchAIn’s Modular AI Data Center Strategy and Strategic Electrical Infrastructure Collaboration with PDM Designed to Reduce Build Times, Lower Capital Costs, and Accelerate Revenue Generation

Exhibit 99.1 Signing Day Sports Highlights BlockchAIn’s Modular AI Data Center Strategy and Strategic Electrical Infrastructure Collaboration with PDM Designed to Reduce Build Times, Lower Capital Costs, and Accelerate Revenue Generation Scottsdale, AZ, March 9, 2026 (GLOBE NEWSWIRE) — Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), in connection with the Com

March 9, 2026 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 9, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 9, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

March 9, 2026 EX-99.1

Signing Day Sports Highlights BlockchAIn’s Modular AI Data Center Strategy and Strategic Electrical Infrastructure Collaboration with PDM Designed to Reduce Build Times, Lower Capital Costs, and Accelerate Revenue Generation

Exhibit 99.1 Signing Day Sports Highlights BlockchAIn’s Modular AI Data Center Strategy and Strategic Electrical Infrastructure Collaboration with PDM Designed to Reduce Build Times, Lower Capital Costs, and Accelerate Revenue Generation Scottsdale, AZ, March 9, 2026 (GLOBE NEWSWIRE) — Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), in connection with the Com

March 6, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 6, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 6, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

March 6, 2026 EX-99.1

Signing Day Sports Special Stockholder Meeting to Consider and Vote on Proposed Business Combination with BlockchAIn Digital Infrastructure to Be Held March 13, 2026 BlockchAIn Digital Infrastructure Expected to Trade on NYSE American Under Ticker Sy

Exhibit 99.1 Signing Day Sports Special Stockholder Meeting to Consider and Vote on Proposed Business Combination with BlockchAIn Digital Infrastructure to Be Held March 13, 2026 BlockchAIn Digital Infrastructure Expected to Trade on NYSE American Under Ticker Symbol “AIB” Following Completion of Proposed Business Combination SCOTTSDALE, AZ / GLOBE NEWSWIRE / March 6, 2026 / – Signing Day Sports,

March 6, 2026 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 6, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 6, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

March 6, 2026 EX-99.1

Signing Day Sports Special Stockholder Meeting to Consider and Vote on Proposed Business Combination with BlockchAIn Digital Infrastructure to Be Held March 13, 2026 BlockchAIn Digital Infrastructure Expected to Trade on NYSE American Under Ticker Sy

Exhibit 99.1 Signing Day Sports Special Stockholder Meeting to Consider and Vote on Proposed Business Combination with BlockchAIn Digital Infrastructure to Be Held March 13, 2026 BlockchAIn Digital Infrastructure Expected to Trade on NYSE American Under Ticker Symbol “AIB” Following Completion of Proposed Business Combination SCOTTSDALE, AZ / GLOBE NEWSWIRE / March 6, 2026 / – Signing Day Sports,

March 2, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 27, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 27, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commiss

February 25, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 25, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 25, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commiss

February 25, 2026 EX-99.1

Signing Day Sports Announces BlockchAIn’s AI-Focused Initiative for Next Generation Power-Advantaged Digital Infrastructure Platform Leveraging Existing Data Center Assets into High-Performance Computing

Exhibit 99.1 Signing Day Sports Announces BlockchAIn’s AI-Focused Initiative for Next Generation Power-Advantaged Digital Infrastructure Platform Leveraging Existing Data Center Assets into High-Performance Computing Scottsdale, AZ – February 25, 2026 – Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), in connection with the Company’s previously announced propo

February 25, 2026 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 25, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 25, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commiss

February 25, 2026 EX-99.1

Signing Day Sports Announces BlockchAIn’s AI-Focused Initiative for Next Generation Power-Advantaged Digital Infrastructure Platform Leveraging Existing Data Center Assets into High-Performance Computing

Exhibit 99.1 Signing Day Sports Announces BlockchAIn’s AI-Focused Initiative for Next Generation Power-Advantaged Digital Infrastructure Platform Leveraging Existing Data Center Assets into High-Performance Computing Scottsdale, AZ – February 25, 2026 – Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), in connection with the Company’s previously announced propo

February 20, 2026 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 20, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 20, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commiss

February 20, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 20, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 20, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commiss

February 17, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 17, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 17, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commiss

February 17, 2026 EX-99.1

Signing Day Sports Announces Effectiveness of Form S-4 Registration Statement and March 13, 2026 Special Stockholder Meeting to Approve Business Combination with BlockchAIn BlockchAIn Digital Infrastructure, Inc. Expected to Trade on NYSE American Un

Exhibit 99.1 Signing Day Sports Announces Effectiveness of Form S-4 Registration Statement and March 13, 2026 Special Stockholder Meeting to Approve Business Combination with BlockchAIn BlockchAIn Digital Infrastructure, Inc. Expected to Trade on NYSE American Under Ticker Symbol “AIB” Following Completion of Business Combination SCOTTSDALE, AZ / GLOBE NEWSWIRE / February 17, 2026 / – Signing Day

February 17, 2026 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 17, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 17, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commiss

February 17, 2026 EX-99.1

Signing Day Sports Announces Effectiveness of Form S-4 Registration Statement and March 13, 2026 Special Stockholder Meeting to Approve Business Combination with BlockchAIn BlockchAIn Digital Infrastructure, Inc. Expected to Trade on NYSE American Un

Exhibit 99.1 Signing Day Sports Announces Effectiveness of Form S-4 Registration Statement and March 13, 2026 Special Stockholder Meeting to Approve Business Combination with BlockchAIn BlockchAIn Digital Infrastructure, Inc. Expected to Trade on NYSE American Under Ticker Symbol “AIB” Following Completion of Business Combination SCOTTSDALE, AZ / GLOBE NEWSWIRE / February 17, 2026 / – Signing Day

February 12, 2026 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 12, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 12, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commiss

February 12, 2026 EX-99.1

Signing Day Sports Announces Eyal Rozen Named as Chief Operating Officer of BlockchAIn Veteran Technology Executive Brings 25 Years of Leadership Across AI, Cloud, and Cybersecurity

Exhibit 99.1 Signing Day Sports Announces Eyal Rozen Named as Chief Operating Officer of BlockchAIn Veteran Technology Executive Brings 25 Years of Leadership Across AI, Cloud, and Cybersecurity SCOTTSDALE, AZ / GLOBE NEWSWIRE / February 12, 2026 / – Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), today announced that Eyal Rozen has been named Chief Operating

February 12, 2026 EX-99.1

Signing Day Sports Announces Eyal Rozen Named as Chief Operating Officer of BlockchAIn Veteran Technology Executive Brings 25 Years of Leadership Across AI, Cloud, and Cybersecurity

Exhibit 99.1 Signing Day Sports Announces Eyal Rozen Named as Chief Operating Officer of BlockchAIn Veteran Technology Executive Brings 25 Years of Leadership Across AI, Cloud, and Cybersecurity SCOTTSDALE, AZ / GLOBE NEWSWIRE / February 12, 2026 / – Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), today announced that Eyal Rozen has been named Chief Operating

February 12, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 12, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 12, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commiss

January 20, 2026 EX-99.1

Signing Day Sports Provides Update on Business Combination with BlockchAIn Proposed Combined Company Will be a Cash-Generating, AI-Focused Digital Infrastructure Platform AI-Ready Data Centers, Low-Cost Power and Strategic U.S. Locations Anchor Long-

Exhibit 99.1 Signing Day Sports Provides Update on Business Combination with BlockchAIn Proposed Combined Company Will be a Cash-Generating, AI-Focused Digital Infrastructure Platform AI-Ready Data Centers, Low-Cost Power and Strategic U.S. Locations Anchor Long-Term Operating Strategy BlockchAIn 2024 Revenue of ~$22.9 Million and Net Income of ~$5.7 Million, with Infrastructure Expansion Expected

January 20, 2026 EX-99.1

Signing Day Sports, Inc. Provides Response to Unusual Market Action

Exhibit 99.1 Signing Day Sports, Inc. Provides Response to Unusual Market Action SCOTTSDALE, AZ / GLOBE NEWSWIRE / January 20, 2026 / – Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), today announced that the Company had become aware of unusual trading activity in its common stock on the NYSE American LLC on January 20, 2026. The Company is issuing this press

January 20, 2026 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 20, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 20, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissi

January 20, 2026 EX-99.1

Signing Day Sports Provides Update on Business Combination with BlockchAIn Proposed Combined Company Will be a Cash-Generating, AI-Focused Digital Infrastructure Platform AI-Ready Data Centers, Low-Cost Power and Strategic U.S. Locations Anchor Long-

Exhibit 99.1 Signing Day Sports Provides Update on Business Combination with BlockchAIn Proposed Combined Company Will be a Cash-Generating, AI-Focused Digital Infrastructure Platform AI-Ready Data Centers, Low-Cost Power and Strategic U.S. Locations Anchor Long-Term Operating Strategy BlockchAIn 2024 Revenue of ~$22.9 Million and Net Income of ~$5.7 Million, with Infrastructure Expansion Expected

January 20, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 20, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 20, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissi

January 20, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 20, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 20, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissi

January 15, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 13, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 13, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissi

January 15, 2026 EX-1.1

9,483,500 SHARES OF COMMON STOCK, 0 PRE-FUNDED WARRANTS and 14,225,250 COMMON Warrants of SIGNING DAY SPORTS, INC. UNDERWRITING AGREEMENT

Exhibit 1.1 9,483,500 SHARES OF COMMON STOCK, 0 PRE-FUNDED WARRANTS and 14,225,250 COMMON Warrants of SIGNING DAY SPORTS, INC. UNDERWRITING AGREEMENT January 13, 2026 Maxim Group LLC As the Representative of the Several underwriters, if any, named in Schedule I hereto c/o Maxim Group LLC 300 Park Avenue, 16th Floor New York, NY 10022 Ladies and Gentlemen: The undersigned, Signing Day Sports, Inc.,

January 15, 2026 EX-99.2

Signing Day Sports Announces Closing of $5.6 Million Public Offering

Exhibit 99.2 Signing Day Sports Announces Closing of $5.6 Million Public Offering SCOTTSDALE, Arizona, January 14, 2026 (NewMediaWire) - Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app and platform to aid high school athletes in the recruitment process, today announced the closing of its public offering of 9,483,500

January 15, 2026 EX-99.1

Signing Day Sports Announces Pricing of $5.6 Million Public Offering

Exhibit 99.1 Signing Day Sports Announces Pricing of $5.6 Million Public Offering SCOTTSDALE, Arizona, January 13, 2026 (NewMediaWire) - Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app and platform to aid high school athletes in the recruitment process, today announced the pricing of its public offering of 9,483,500

January 14, 2026 424B4

9,483,500 Shares of Common Stock Warrants to Purchase up to 14,225,250 Shares of Common Stock, Representative’s Warrants to Purchase up to 474,175 Shares of Common Stock, Up to 14,699,425 Shares of Common Stock Issuable Upon Exercise of the Warrants

Filed Pursuant to Rule 424(b)(4) Registration No. 333-292569 PROSPECTUS 9,483,500 Shares of Common Stock and Warrants to Purchase up to 14,225,250 Shares of Common Stock, Representative’s Warrants to Purchase up to 474,175 Shares of Common Stock, and Up to 14,699,425 Shares of Common Stock Issuable Upon Exercise of the Warrants and Representative’s Warrants Signing Day Sports, Inc. This is an unde

January 12, 2026 EX-4.9

Form of Warrant

Exhibit 4.9 FORM OF WARRANT TO PURCHASE COMMON STOCK SIGNING DAY SPORTS, INC. Warrant Shares: [] Issue Date: [ ], 2026 THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [ ] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time after the Issue Date (the “Initial

January 12, 2026 S-1/A

As filed with the Securities and Exchange Commission on January 12, 2026.

As filed with the Securities and Exchange Commission on January 12, 2026. Registration No. 333-292569 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 AMENDMENT NO. 1 TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Signing Day Sports, Inc. (Exact name of registrant as specified in its charter) Delaware 7389 87-2792157 (State or other jurisdiction of incor

January 12, 2026 EX-FILING FEES

Calculation of Filing Fee Table

Ex-Filing Fees CALCULATION OF FILING FEE TABLES S-1 Signing Day Sports, Inc. Table 1: Newly Registered and Carry Forward Securities Line Item Type Security Type Security Class Title Notes Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Newly Registered Securities Fees Previously Paid Equity Shares

January 12, 2026 EX-4.10

Form of Representative’s Warrant

Exhibit 4.10 FORM OF WARRANT TO PURCHASE COMMON STOCK SIGNING DAY SPORTS, INC. Warrant Shares: [] Issue Date: [ ], 2026 THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, Maxim Partners LLC or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time after the Issue Dat

January 8, 2026 EX-99.1

Signing Day Sports Hosts 2025 Military Appreciation Bowl National Combine At The Star In Frisco, Texas

Exhibit 99.1 Signing Day Sports Hosts 2025 Military Appreciation Bowl National Combine At The Star In Frisco, Texas SCOTTSDALE, AZ / GLOBE NEWSWIRE / January 8, 2026 / – Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app and platform dedicated to improving the recruiting process for high school athletes and college coa

January 8, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 8, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 8, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissio

January 7, 2026 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 7, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 7, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissio

January 7, 2026 EX-99.1

Signing Day Sports Provides Transaction Update on Proposed Business Combination with BlockchAIn Digital Infrastructure Progress of Transaction ; Closing Anticipated in February or March 2026

Exhibit 99.1 Signing Day Sports Provides Transaction Update on Proposed Business Combination with BlockchAIn Digital Infrastructure Progress of Transaction ; Closing Anticipated in February or March 2026 SCOTTSDALE, AZ / GLOBE NEWSWIRE / January 7, 2026 / – Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app and platfor

January 7, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 7, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 7, 2026 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissio

January 7, 2026 EX-99.1

Signing Day Sports Provides Transaction Update on Proposed Business Combination with BlockchAIn Digital Infrastructure Progress of Transaction ; Closing Anticipated in February or March 2026

Exhibit 99.1 Signing Day Sports Provides Transaction Update on Proposed Business Combination with BlockchAIn Digital Infrastructure Progress of Transaction ; Closing Anticipated in February or March 2026 SCOTTSDALE, AZ / GLOBE NEWSWIRE / January 7, 2026 / – Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app and platfor

January 5, 2026 EX-FILING FEES

CALCULATION OF FILING FEE TABLES Signing Day Sports, Inc. Table 1: Newly Registered and Carry Forward Securities

Ex-Filing Fees CALCULATION OF FILING FEE TABLES S-1 Signing Day Sports, Inc. Table 1: Newly Registered and Carry Forward Securities Line Item Type Security Type Security Class Title Notes Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Newly Registered Securities Fees to be Paid Equity Shares of co

January 5, 2026 EX-4.8

PRE-FUNDED COMMON STOCK PURCHASE WARRANT SIGNING DAY SPORTS, INC.

Exhibit 4.8 PRE-FUNDED COMMON STOCK PURCHASE WARRANT SIGNING DAY SPORTS, INC. Warrant Shares:    Initial Exercise Date:    , 2025 THIS PRE-FUNDED COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received,        or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or afte

January 5, 2026 EX-1.1

[____________] SHARES OF COMMON STOCK, [______] PRE-FUNDED WARRANTS and [__________] COMMON Warrants of SIGNING DAY SPORTS, INC. UNDERWRITING AGREEMENT

Exhibit 1.1 [] SHARES OF COMMON STOCK, [] PRE-FUNDED WARRANTS and [] COMMON Warrants of SIGNING DAY SPORTS, INC. UNDERWRITING AGREEMENT [], 2026 Maxim Group LLC As the Representative of the Several underwriters, if any, named in Schedule I hereto c/o Maxim Group LLC 300 Park Avenue, 16th Floor New York, NY 10022 Ladies and Gentlemen: The undersigned, Signing Day Sports, Inc., a Delaware corporatio

January 5, 2026 S-1

As filed with the Securities and Exchange Commission on January 5, 2026.

As filed with the Securities and Exchange Commission on January 5, 2026. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Signing Day Sports, Inc. (Exact name of registrant as specified in its charter) Delaware 7389 87-2792157 (State or other jurisdiction of incorporation or organization)

January 5, 2026 EX-4.10

FORM OF WARRANT TO PURCHASE COMMON STOCK SIGNING DAY SPORTS, INC.

Exhibit 4.10 FORM OF WARRANT TO PURCHASE COMMON STOCK SIGNING DAY SPORTS, INC. Warrant Shares: [] Issue Date: [ ], 2026 THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, Maxim Partners LLC or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time after the Issue Dat

January 5, 2026 EX-4.9

FORM OF WARRANT TO PURCHASE COMMON STOCK SIGNING DAY SPORTS, INC.

Exhibit 4.9 FORM OF WARRANT TO PURCHASE COMMON STOCK SIGNING DAY SPORTS, INC. Warrant Shares: [] Issue Date: [ ], 2026 THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [ ] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time after the Issue Date (the “Initial

December 22, 2025 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 21, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 21, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commiss

December 22, 2025 EX-2.1

AMENDMENT NO. 2 TO THE BUSINESS COMBINATION AGREEMENT

Exhibit 2.1 AMENDMENT NO. 2 TO THE BUSINESS COMBINATION AGREEMENT This Amendment No. 2 to the Business Combination Agreement, (this “Amendment”), is made and entered into as of December 21, 2025 (the “Amendment Date”) by and among (i) Signing Day Sports, Inc., a Delaware corporation (“SGN”), (ii) BlockchAIn Digital Infrastructure, Inc., a Delaware corporation (“Holdings”), (iii) One Blockchain LLC

December 22, 2025 EX-2.1

AMENDMENT NO. 2 TO THE BUSINESS COMBINATION AGREEMENT

Exhibit 2.1 AMENDMENT NO. 2 TO THE BUSINESS COMBINATION AGREEMENT This Amendment No. 2 to the Business Combination Agreement, (this “Amendment”), is made and entered into as of December 21, 2025 (the “Amendment Date”) by and among (i) Signing Day Sports, Inc., a Delaware corporation (“SGN”), (ii) BlockchAIn Digital Infrastructure, Inc., a Delaware corporation (“Holdings”), (iii) One Blockchain LLC

December 22, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 21, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 21, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commiss

December 16, 2025 EX-99.4

RESTRICTED STOCK AWARD AGREEMENT

Exhibit 99.4 RESTRICTED STOCK AWARD AGREEMENT This Restricted Stock Award Agreement (this “Agreement”) is made and entered into as of (the “Grant Date”) by and between Signing Day Sports, Inc., a Delaware corporation (the “Company”), and (the “Grantee”). WHEREAS, the Company has adopted the Signing Day Sports, Inc. Amended and Restated 2022 Equity Incentive Plan, as amended by Amendment No. 1 to t

December 16, 2025 EX-99.5

RESTRICTED STOCK UNIT AWARD AGREEMENT

Exhibit 99.5 RESTRICTED STOCK UNIT AWARD AGREEMENT This Restricted Stock Unit Award Agreement (this “Agreement”) is made and entered into as of (the “Grant Date”) by and between Signing Day Sports, Inc., a Delaware corporation (the “Company”), and (the “Grantee”). WHEREAS, the Company has adopted the Signing Day Sports, Inc. Amended and Restated 2022 Equity Incentive Plan, as amended by Amendment

December 16, 2025 EX-FILING FEES

CALCULATION OF FILING FEE TABLES SIGNING DAY SPORTS, INC. Table 1: Newly Registered Securities

Ex-Filing Fees CALCULATION OF FILING FEE TABLES S-8 SIGNING DAY SPORTS, INC. Table 1: Newly Registered Securities Security Type Security Class Title Notes Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Stock, par value $0.0001 per share (1) Other 906,250 $ 1.22 $ 1,105,625.00 0.00013

December 16, 2025 S-8

As filed with the Securities and Exchange Commission on December 16, 2025

As filed with the Securities and Exchange Commission on December 16, 2025 Registration No.

December 16, 2025 EX-99.3

STOCK OPTION AGREEMENT

Exhibit 99.3 STOCK OPTION AGREEMENT This Stock Option Agreement (this “Agreement”) is made and entered into as of the Grant Date specified below by and between Signing Day Sports, Inc., a Delaware corporation (the “Company”), and the participant named below (the “Participant”). Name of Participant: Grant Date: Expiration Date: Exercise Price: Number of Option Shares: Type of Option: Vesting Start

December 5, 2025 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 5, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 5, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissi

December 5, 2025 EX-99.1

Signing Day Sports Shareholder Letter Details AI/HPC Infrastructure Opportunity with BlockchAIn Digital Infrastructure

Exhibit 99.1 Signing Day Sports Shareholder Letter Details AI/HPC Infrastructure Opportunity with BlockchAIn Digital Infrastructure SCOTTSDALE, AZ / GLOBE NEWSWIRE / December 5, 2025 / – Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN) today announced the release of a shareholder letter from its Chairman and CEO, Daniel Nelson. The shareholder letter provides a

December 5, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 5, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 5, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissi

December 5, 2025 EX-99.1

Signing Day Sports Shareholder Letter Details AI/HPC Infrastructure Opportunity with BlockchAIn Digital Infrastructure

Exhibit 99.1 Signing Day Sports Shareholder Letter Details AI/HPC Infrastructure Opportunity with BlockchAIn Digital Infrastructure SCOTTSDALE, AZ / GLOBE NEWSWIRE / December 5, 2025 / – Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN) today announced the release of a shareholder letter from its Chairman and CEO, Daniel Nelson. The shareholder letter provides a

December 3, 2025 EX-4.9

FORM OF WARRANT TO PURCHASE COMMON STOCK SIGNING DAY SPORTS, INC.

Exhibit 4.9 FORM OF WARRANT TO PURCHASE COMMON STOCK SIGNING DAY SPORTS, INC. Warrant Shares: [] Issue Date: [ ], 2025 THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the date hereof (the “In

December 3, 2025 DRS

As confidentially submitted to the U.S. Securities and Exchange Commission on December 3, 2025. This draft registration statement has not been publicly filed with the U.S. Securities and Exchange Commission and all information herein remains strictly

As confidentially submitted to the U.S. Securities and Exchange Commission on December 3, 2025. This draft registration statement has not been publicly filed with the U.S. Securities and Exchange Commission and all information herein remains strictly confidential. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE

December 1, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 1, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 1, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissi

December 1, 2025 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 1, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 1, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissi

December 1, 2025 EX-99.1

Signing Day Sports Announces Filing of Registration Statement on Form S-4 for Proposed Business Combination with One Blockchain LLC

Exhibit 99.1 Signing Day Sports Announces Filing of Registration Statement on Form S-4 for Proposed Business Combination with One Blockchain LLC SCOTTSDALE, AZ / GLOBE NEWSWIRE / December 1, 2025 / – Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app and platform dedicated to improving the recruiting process for high s

December 1, 2025 EX-99.1

Signing Day Sports Announces Filing of Registration Statement on Form S-4 for Proposed Business Combination with One Blockchain LLC

Exhibit 99.1 Signing Day Sports Announces Filing of Registration Statement on Form S-4 for Proposed Business Combination with One Blockchain LLC SCOTTSDALE, AZ / GLOBE NEWSWIRE / December 1, 2025 / – Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app and platform dedicated to improving the recruiting process for high s

November 18, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) November 17, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) November 17, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissi

November 18, 2025 EX-10.1

AMENDMENT NO. 1 SIGNING DAY SPORTS, INC. AMENDED AND RESTATED 2022 EQUITY INCENTIVE PLAN

Exhibit 10.1 AMENDMENT NO. 1 TO SIGNING DAY SPORTS, INC. AMENDED AND RESTATED 2022 EQUITY INCENTIVE PLAN The Signing Day Sports, Inc. Amended and Restated 2022 Equity Incentive Plan (the “Plan”) is hereby amended as follows: Section 4.1 of the Plan is hereby amended in its entirety to read as follows: “4.1. Subject to adjustment in accordance with Section 11, a total of 1,000,000 shares of Common

November 14, 2025 EX-99.5

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

Exhibit 99.5 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission on November 14, 2025 (the “Form 8-K/A”). Introduct

November 14, 2025 8-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 3) CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 21, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 3) CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 21, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorpor

November 14, 2025 EX-99.5

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

Exhibit 99.5 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission on November 14, 2025 (the “Form 8-K/A”). Introduct

November 14, 2025 EX-99.3

One Blockchain LLC

Exhibit 99.3 One Blockchain LLC Unaudited Condensed Consolidated Financial Statements Balance Sheets as of September 30, 2025 (Successor), and December 31, 2024 (Successor) Condensed Consolidated Statements of Operations and Consolidated Statement of Changes in Members’ Equity for the three and nine months ended September 30, 2025 (Successor), and for the three months ended September 30, 2024 (Pre

November 14, 2025 EX-99.4

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ONE BLOCKCHAIN

Exhibit 99.4 MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ONE BLOCKCHAIN Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission on Nove

November 14, 2025 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 3) CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 21, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 3) CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 21, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorpor

November 14, 2025 EX-99.1

RISK FACTORS

Exhibit 99.1 RISK FACTORS Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission on November 14, 2025 (the “Form 8-K/A”), and if not defined therein, such capitalized terms shall

November 14, 2025 EX-99.1

RISK FACTORS

Exhibit 99.1 RISK FACTORS Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission on November 14, 2025 (the “Form 8-K/A”), and if not defined therein, such capitalized terms shall

November 14, 2025 EX-99.4

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ONE BLOCKCHAIN

Exhibit 99.4 MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ONE BLOCKCHAIN Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission on Nove

November 14, 2025 EX-99.3

One Blockchain LLC

Exhibit 99.3 One Blockchain LLC Unaudited Condensed Consolidated Financial Statements Balance Sheets as of September 30, 2025 (Successor), and December 31, 2024 (Successor) Condensed Consolidated Statements of Operations and Consolidated Statement of Changes in Members’ Equity for the three and nine months ended September 30, 2025 (Successor), and for the three months ended September 30, 2024 (Pre

November 12, 2025 EX-99.1

Signing Day Sports Announces Selected Financial Results for Quarter Ended September 30, 2025, and Provides Business Update

Exhibit 99.1 Signing Day Sports Announces Selected Financial Results for Quarter Ended September 30, 2025, and Provides Business Update SCOTTSDALE, Ariz., November 12, 2025 - Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app and platform to aid high school athletes in the recruitment process, today announced selected

November 12, 2025 EX-2.1

AMENDMENT NO. 1 TO THE BUSINESS COMBINATION AGREEMENT

Exhibit 2.1 AMENDMENT NO. 1 TO THE BUSINESS COMBINATION AGREEMENT This Amendment No. 1 to the Business Combination Agreement, (this “Amendment”), is made and entered into as of November 10, 2025 (the “Amendment Date”) by and among (i) Signing Day Sports, Inc., a Delaware corporation (“SGN”), (ii) BlockchAIn Digital Infrastructure, Inc., a Delaware corporation (“Holdings”), (iii) One Blockchain LLC

November 12, 2025 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 10, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 10, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commiss

November 12, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 10, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 10, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commiss

November 12, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2025 ☐ TRANSITION REPO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-41863 SIGNI

November 12, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 12, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 12, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commiss

November 12, 2025 EX-2.1

AMENDMENT NO. 1 TO THE BUSINESS COMBINATION AGREEMENT

Exhibit 2.1 AMENDMENT NO. 1 TO THE BUSINESS COMBINATION AGREEMENT This Amendment No. 1 to the Business Combination Agreement, (this “Amendment”), is made and entered into as of November 10, 2025 (the “Amendment Date”) by and among (i) Signing Day Sports, Inc., a Delaware corporation (“SGN”), (ii) BlockchAIn Digital Infrastructure, Inc., a Delaware corporation (“Holdings”), (iii) One Blockchain LLC

October 9, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 9, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 9, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction (Commission File Number) (IR

October 9, 2025 EX-99.1

Signing Day Sports Announces Technology and Services to Support College Basketball Recruitment Hosts First Combine with Former NBA Star Thurl Bailey

Exhibit 99.1 Signing Day Sports Announces Technology and Services to Support College Basketball Recruitment Hosts First Combine with Former NBA Star Thurl Bailey SCOTTSDALE, Ariz., October 9, 2025 - Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app and platform to aid high school athletes in the recruitment process, t

October 8, 2025 EX-99.1

Signing Day Sports Reports Continued Progress Toward Business Combination with One Blockchain

Exhibit 99.1 Signing Day Sports Reports Continued Progress Toward Business Combination with One Blockchain SCOTTSDALE, Ariz., October 8, 2025 - Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app and platform to aid high school athletes in the recruitment process, today provided an update on its Business Combination Agr

October 8, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

October 8, 2025 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 8, 2025 SIGNING DAY SPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 8, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissio

October 8, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 8, 2025 SIGNING DAY SPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 8, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissio

October 8, 2025 EX-99.1

Signing Day Sports Reports Continued Progress Toward Business Combination with One Blockchain

Exhibit 99.1 Signing Day Sports Reports Continued Progress Toward Business Combination with One Blockchain SCOTTSDALE, Ariz., October 8, 2025 - Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app and platform to aid high school athletes in the recruitment process, today provided an update on its Business Combination Agr

October 8, 2025 ARS

FORM ARS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 1) (Mark One) 侌 ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended: December 31, 2024 侊 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-41863

October 8, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A Information Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A Information Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

October 1, 2025 424B3

Up to 1,297,322 Shares of Common Stock Signing Day Sports, Inc.

Filed Pursuant to Rule 424(b)(3) Registration No. 333-289965 PROSPECTUS Up to 1,297,322 Shares of Common Stock Signing Day Sports, Inc. This prospectus relates to the offer and sale from time to time by Helena Global Investment Opportunities 1 Ltd., a Cayman Islands company (the “Selling Stockholder”), of up to 1,297,322 shares of common stock (“common stock”) of Signing Day Sports, Inc., a Delawa

September 30, 2025 EFFECT

EFFECT

X0101 EFFECT 33 LIVE 2025-09-30 17:00:00 S-1 0001898474 Signing Day Sports, Inc. 333-289965

September 25, 2025 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 2) CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 21, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 2) CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 21, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorpor

September 25, 2025 EX-99.3

One Blockchain LLC

Exhibit 99.3 One Blockchain LLC Unaudited Condensed Financial Statements Balance Sheets as of June 30, 2025 (Successor), and December 31, 2024 (Successor) (Restated) Condensed Statements of Operations and Statement of Changes in Members’ Equity for the three and six months ended June 30, 2025 (Successor), and for the three months ended June 30, 2024 (Predecessor for the period January 1 to Februar

September 25, 2025 EX-99.4

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ONE BLOCKCHAIN

Exhibit 99.4 MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ONE BLOCKCHAIN Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission on Sept

September 25, 2025 EX-99.3

One Blockchain LLC

Exhibit 99.3 One Blockchain LLC Unaudited Condensed Financial Statements Balance Sheets as of June 30, 2025 (Successor), and December 31, 2024 (Successor) (Restated) Condensed Statements of Operations and Statement of Changes in Members’ Equity for the three and six months ended June 30, 2025 (Successor), and for the three months ended June 30, 2024 (Predecessor for the period January 1 to Februar

September 25, 2025 EX-99.5

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

Exhibit 99.5 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission on September 25, 2025 (the “Form 8-K/A”). Introduc

September 25, 2025 EX-99.1

RISK FACTORS

Exhibit 99.1 RISK FACTORS Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission on September 25, 2025 (the “Form 8-K/A”), and if not defined therein, such capitalized terms shall

September 25, 2025 EX-99.5

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

Exhibit 99.5 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission on September 25, 2025 (the “Form 8-K/A”). Introduc

September 25, 2025 EX-99.2

BV Power Alpha LLC

Exhibit 99.2 BV Power Alpha LLC Financial Statements for the Successor period from February 8, 2024 to December 31, 2024, the Predecessor period from January 1, 2024 to February 7, 2024, and the year ended December 31, 2023 (Predecessor) (Restated), and Report of Independent Registered Public Accounting Firm (PCAOB ID 52) F-1 BV POWER ALPHA LLC TABLE OF CONTENTS Page Report of Independent Register

September 25, 2025 S-1/A

As filed with the Securities and Exchange Commission on September 25, 2025

As filed with the Securities and Exchange Commission on September 25, 2025 Registration No.

September 25, 2025 EX-99.2

BV Power Alpha LLC

Exhibit 99.2 BV Power Alpha LLC Financial Statements for the Successor period from February 8, 2024 to December 31, 2024, the Predecessor period from January 1, 2024 to February 7, 2024, and the year ended December 31, 2023 (Predecessor) (Restated), and Report of Independent Registered Public Accounting Firm (PCAOB ID 52) F-1 BV POWER ALPHA LLC TABLE OF CONTENTS Page Report of Independent Register

September 25, 2025 EX-FILING FEES

CALCULATION OF FILING FEE TABLES Signing Day Sports, Inc. Table 1: Newly Registered and Carry Forward Securities

Ex-Filing Fees CALCULATION OF FILING FEE TABLES S-1 Signing Day Sports, Inc. Table 1: Newly Registered and Carry Forward Securities Line Item Type Security Type Security Class Title Notes Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Newly Registered Securities Fees Previously Paid Equity Shares

September 25, 2025 EX-99.4

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ONE BLOCKCHAIN

Exhibit 99.4 MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ONE BLOCKCHAIN Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission on Sept

September 25, 2025 EX-99.1

RISK FACTORS

Exhibit 99.1 RISK FACTORS Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission on September 25, 2025 (the “Form 8-K/A”), and if not defined therein, such capitalized terms shall

September 25, 2025 8-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 2) CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 21, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 2) CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 21, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorpor

September 24, 2025 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A Information Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A Information Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of

August 29, 2025 EX-99.1

RISK FACTORS

Exhibit 99.1 RISK FACTORS Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission, to which this document is attached (the “Form 8-K/A”), and if not defined therein, such capitaliz

August 29, 2025 EX-10.3

LIMITED WAIVER AGREEMENT

Exhibit 10.3 LIMITED WAIVER AGREEMENT LIMITED WAIVER AGREEMENT, dated as of August 18, 2025 (this “Waiver”) by and between Signing Day Sports, Inc., a Delaware corporation (the “Company”), and Helena Global Investment Opportunities 1 Ltd. (the “Investor”). Each of the Company and the Investor are sometimes referred to in this Waiver individually as a “Party” and, collectively, as the “Parties.” RE

August 29, 2025 S-3

As filed with the Securities and Exchange Commission on August 29, 2025

As filed with the Securities and Exchange Commission on August 29, 2025 Registration No.

August 29, 2025 EX-99.4

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ONE BLOCKCHAIN

Exhibit 99.4 MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ONE BLOCKCHAIN Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission, to whi

August 29, 2025 EX-99.5

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

Exhibit 99.5 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission, to which this document is attached (the “Form 8-K

August 29, 2025 EX-99.5

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

Exhibit 99.5 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission, to which this document is attached (the “Form 8-K

August 29, 2025 EX-99.2

BV Power Alpha LLC

Exhibit 99.2 BV Power Alpha LLC Financial Statements for the Successor period from February 8, 2024 to December 31, 2024, the Predecessor period from January 1, 2024 to February 7, 2024, and the year ended December 31, 2023 (Predecessor) (Restated), and Report of Independent Registered Public Accounting Firm (PCAOB ID 52) 1 BV POWER ALPHA LLC TABLE OF CONTENTS Page Report of Independent Registered

August 29, 2025 EX-99.1

RISK FACTORS

Exhibit 99.1 RISK FACTORS Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission, to which this document is attached (the “Form 8-K/A”), and if not defined therein, such capitaliz

August 29, 2025 EX-99.3

One Blockchain LLC

Exhibit 99.3 One Blockchain LLC Unaudited Condensed Financial Statements Balance Sheets as of June 30, 2025 (Successor), and December 31, 2024 (Successor) Condensed Statements of Operations and Statement of Changes in Members’ Equity for the three and six months ended June 30, 2025 (Successor), and for the three months ended June 30, 2024 (Predecessor for the period January 1 to February 7, 2024 a

August 29, 2025 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 21, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 21, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorpor

August 29, 2025 8-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 21, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 21, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorpor

August 29, 2025 EX-99.3

One Blockchain LLC

Exhibit 99.3 One Blockchain LLC Unaudited Condensed Financial Statements Balance Sheets as of June 30, 2025 (Successor), and December 31, 2024 (Successor) Condensed Statements of Operations and Statement of Changes in Members’ Equity for the three and six months ended June 30, 2025 (Successor), and for the three months ended June 30, 2024 (Predecessor for the period January 1 to February 7, 2024 a

August 29, 2025 EX-10.3

LIMITED WAIVER AGREEMENT

Exhibit 10.3 LIMITED WAIVER AGREEMENT LIMITED WAIVER AGREEMENT, dated as of August 18, 2025 (this “Waiver”) by and between Signing Day Sports, Inc., a Delaware corporation (the “Company”), and Helena Global Investment Opportunities 1 Ltd. (the “Investor”). Each of the Company and the Investor are sometimes referred to in this Waiver individually as a “Party” and, collectively, as the “Parties.” RE

August 29, 2025 EX-99.2

BV Power Alpha LLC

Exhibit 99.2 BV Power Alpha LLC Financial Statements for the Successor period from February 8, 2024 to December 31, 2024, the Predecessor period from January 1, 2024 to February 7, 2024, and the year ended December 31, 2023 (Predecessor) (Restated), and Report of Independent Registered Public Accounting Firm (PCAOB ID 52) 1 BV POWER ALPHA LLC TABLE OF CONTENTS Page Report of Independent Registered

August 29, 2025 EX-FILING FEES

CALCULATION OF FILING FEE TABLES Signing Day Sports, Inc. Table 1: Newly Registered and Carry Forward Securities

Ex-Filing Fees CALCULATION OF FILING FEE TABLES S-3 Signing Day Sports, Inc. Table 1: Newly Registered and Carry Forward Securities Line Item Type Security Type Security Class Title Notes Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Newly Registered Securities Fees to be Paid Equity Shares of co

August 29, 2025 EX-99.4

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ONE BLOCKCHAIN

Exhibit 99.4 MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ONE BLOCKCHAIN Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K/A filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission, to whi

August 25, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) August 25, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) August 25, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

August 12, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 12, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissio

August 12, 2025 EX-99.1

Signing Day Sports Announces Selected Financial Results for Quarter Ended June 30, 2025, and Provides Business Update Reports Strengthened Balance Sheet

Exhibit 99.1 Signing Day Sports Announces Selected Financial Results for Quarter Ended June 30, 2025, and Provides Business Update Reports Strengthened Balance Sheet SCOTTSDALE, Ariz., August 12, 2025 - Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app and platform to aid high school athletes in the recruitment proces

August 12, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 ☐ TRANSITION REPORT PU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-41863 SIGNING DA

August 6, 2025 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 1) (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended: December 31, 2024 ☐ TRA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 1) (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended: December 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-41863

August 6, 2025 10-Q/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A (Amendment No. 1) (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 ☐

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A (Amendment No. 1) (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number:

July 31, 2025 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 31, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission F

July 31, 2025 EX-10.1

Amended and Restated Sponsorship Agreement, dated as of July 31, 2025, between Goat Farm Sports, LLC and Signing Day Sports, Inc.

Exhibit 10.1 AMENDED AND RESTATED SPONSORSHIP AGREEMENT This Amended and Restated Agreement (“Agreement”), entered into on this 31st day of July 2025, between Goat Farm Sports, LLC, a New Jersey limited liability company (“GFS”), a New Jersey company with offices located at 14 Hemlock Road, Columbia, New Jersey 07832, and Signing Day Sports, Inc., a Delaware corporation (“SDS”), with an address of

July 22, 2025 EX-10.1

Purchase Agreement, dated as of July 21, 2025, between Signing Day Sports, Inc. and Helena Global Investment Opportunities 1 Ltd.

Exhibit 10.1 PURCHASE AGREEMENT THIS PURCHASE AGREEMENT (this “Agreement”), dated as of July 21, 2025, is made by and between HELENA Global Investment Opportunities 1 Ltd. (the “Investor”), and SIGNING DAY SPORTS, INC., a Delaware corporation (the “Company”). WHEREAS, the parties desire that, upon the terms and subject to the conditions contained herein, the Company shall have the right to issue a

July 22, 2025 EX-99.5

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

Exhibit 99.5 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission, to which this document is attached (the “Form 8-K”)

July 22, 2025 EX-99.4

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ONE BLOCKCHAIN LLC

Exhibit 99.4 MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ONE BLOCKCHAIN LLC Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission, to w

July 22, 2025 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 21, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 21, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission F

July 22, 2025 EX-10.2

Placement Agency Agreement, dated as of July 21, 2025, between Signing Day Sports, Inc. and Maxim Group LLC

Exhibit 10.2 PLACEMENT AGENCY AGREEMENT July 21, 2025 Daniel Nelson Chief Executive Officer Signing Day Sports, Inc. 8355 East Hartford Rd., Suite 100 Scottsdale, AZ 85255 Dear Mr. Nelson: This agreement (the “Agreement”) constitutes the agreement between Maxim Group LLC (“Maxim” or the “Placement Agent”) and Signing Day Sports, Inc., a Delaware corporation (the “Company”), that Maxim shall serve

July 22, 2025 EX-99.2

BV Power Alpha LLC

Exhibit 99.2 BV Power Alpha LLC Financial Statements as of and for the years ended December 31, 2024 and 2023 and Report of Independent Registered Public Accounting Firm (PCAOB ID 52) 1 BV POWER ALPHA LLC TABLE OF CONTENTS Page Report of Independent Registered Public Accounting Firm (PCAOB ID 52) 3 - 4 Financial Statements as of and for the years ended December 31, 2024 and 2023 Balance Sheets 5 S

July 22, 2025 EX-99.2

BV Power Alpha LLC

Exhibit 99.2 BV Power Alpha LLC Financial Statements as of and for the years ended December 31, 2024 and 2023 and Report of Independent Registered Public Accounting Firm (PCAOB ID 52) 1 BV POWER ALPHA LLC TABLE OF CONTENTS Page Report of Independent Registered Public Accounting Firm (PCAOB ID 52) 3 - 4 Financial Statements as of and for the years ended December 31, 2024 and 2023 Balance Sheets 5 S

July 22, 2025 EX-99.1

RISK FACTORS

Exhibit 99.1 RISK FACTORS Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission, to which this document is attached (the “Form 8-K”) BlockchAIn will be faced with a market environm

July 22, 2025 EX-99.3

BV Power Alpha LLC

Exhibit 99.3 BV Power Alpha LLC Unaudited Condensed Financial Statements As of March 31, 2025, and December 31, 2024 And for the Three Months ended March 31, 2025, and 2024 Report of Independent Registered Public Accounting Firm (PCAOB ID 52) 1 BV POWER ALPHA LLC TABLE OF CONTENTS Page Report of Independent Registered Public Accounting Firm (PCAOB ID 52) 3 Financial Statements (Unaudited) Condense

July 22, 2025 EX-10.1

Purchase Agreement, dated as of July 21, 2025, between Signing Day Sports, Inc. and Helena Global Investment Opportunities 1 Ltd.

Exhibit 10.1 PURCHASE AGREEMENT THIS PURCHASE AGREEMENT (this “Agreement”), dated as of July 21, 2025, is made by and between HELENA Global Investment Opportunities 1 Ltd. (the “Investor”), and SIGNING DAY SPORTS, INC., a Delaware corporation (the “Company”). WHEREAS, the parties desire that, upon the terms and subject to the conditions contained herein, the Company shall have the right to issue a

July 22, 2025 EX-10.2

Placement Agency Agreement, dated as of July 21, 2025, between Signing Day Sports, Inc. and Maxim Group LLC

Exhibit 10.2 PLACEMENT AGENCY AGREEMENT July 21, 2025 Daniel Nelson Chief Executive Officer Signing Day Sports, Inc. 8355 East Hartford Rd., Suite 100 Scottsdale, AZ 85255 Dear Mr. Nelson: This agreement (the “Agreement”) constitutes the agreement between Maxim Group LLC (“Maxim” or the “Placement Agent”) and Signing Day Sports, Inc., a Delaware corporation (the “Company”), that Maxim shall serve

July 22, 2025 EX-99.1

RISK FACTORS

Exhibit 99.1 RISK FACTORS Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission, to which this document is attached (the “Form 8-K”) BlockchAIn will be faced with a market environm

July 22, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 21, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 21, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission F

July 22, 2025 EX-99.3

BV Power Alpha LLC

Exhibit 99.3 BV Power Alpha LLC Unaudited Condensed Financial Statements As of March 31, 2025, and December 31, 2024 And for the Three Months ended March 31, 2025, and 2024 Report of Independent Registered Public Accounting Firm (PCAOB ID 52) 1 BV POWER ALPHA LLC TABLE OF CONTENTS Page Report of Independent Registered Public Accounting Firm (PCAOB ID 52) 3 Financial Statements (Unaudited) Condense

July 22, 2025 EX-99.4

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ONE BLOCKCHAIN LLC

Exhibit 99.4 MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ONE BLOCKCHAIN LLC Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission, to w

July 22, 2025 EX-99.5

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

Exhibit 99.5 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K filed by Signing Day Sports, Inc., a Delaware corporation, with the U.S. Securities and Exchange Commission, to which this document is attached (the “Form 8-K”)

July 11, 2025 EX-99.1

Signing Day Sports Advances Business Combination with One Blockchain LLC; Confidential Draft Registration Statement on Form S-4 Submitted to the SEC, Including Preliminary Prospectus and Proxy Statement

Exhibit 99.1 Signing Day Sports Advances Business Combination with One Blockchain LLC; Confidential Draft Registration Statement on Form S-4 Submitted to the SEC, Including Preliminary Prospectus and Proxy Statement SCOTTSDALE, AZ / GLOBE NEWSWIRE / July 11, 2025 / – Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app a

July 11, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 11, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 11, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

July 11, 2025 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 11, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 11, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

July 11, 2025 EX-99.1

Signing Day Sports Advances Business Combination with One Blockchain LLC; Confidential Draft Registration Statement on Form S-4 Submitted to the SEC, Including Preliminary Prospectus and Proxy Statement

Exhibit 99.1 Signing Day Sports Advances Business Combination with One Blockchain LLC; Confidential Draft Registration Statement on Form S-4 Submitted to the SEC, Including Preliminary Prospectus and Proxy Statement SCOTTSDALE, AZ / GLOBE NEWSWIRE / July 11, 2025 / – Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app a

May 28, 2025 EX-99.1

Signing Day Sports Progresses Transaction and Executes Definitive Agreement with BlockchAIn Digital Infrastructure, a Profitable Data Hosting Company Proposed business combination will create a public company engaged in Crypto Mining, Artificial Inte

Exhibit 99.1 Signing Day Sports Progresses Transaction and Executes Definitive Agreement with BlockchAIn Digital Infrastructure, a Profitable Data Hosting Company Proposed business combination will create a public company engaged in Crypto Mining, Artificial Intelligence (“AI”), and High-Performance Computing (“HPC”) Data Hosting Markets BlockchAIn Digital Infrastructure Generated Audited Revenue

May 28, 2025 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 27, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 27, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission F

May 28, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 27, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 27, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission F

May 28, 2025 EX-10.1

Voting and Support Agreement, dated as of May 27, 2025, among Blockchain Digital Infrastructure, Inc., Signing Day Sports, Inc. and certain stockholders of Signing Day Sports, Inc., dated as of May 27, 2025*

Exhibit 10.1 Execution Version VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT (this “Agreement”) is dated as of May 27, 2025, by and between BlockchAIn Digital Infrastructure, Inc., a Delaware corporation (“Holdings”), Signing Day Sports, Inc., a Delaware corporation (the “Company” or “SGN”) and the SGN shareholders set forth in Schedule A attached hereto (each an “SGN Principal” a

May 28, 2025 EX-2.1

Business Combination Agreement, dated as of May 27, 2025, among Signing Day Sports, Inc., BlockchAIn Digital Infrastructure, Inc., One Blockchain LLC, BCDI Merger Sub I Inc., and BCDI Merger Sub II LLC*

Exhibit 2.1 Execution Version BUSINESS COMBINATION AGREEMENT by and among SIGNING DAY SPORTS, INC., BLOCKCHAIN DIGITAL INFRASTRUCTURE, INC., BCDI Merger Sub I Inc., BCDI Merger Sub II LLC and ONE BLOCKCHAIN LLC Dated as of May 27, 2025 TABLE OF CONTENTS Page Article I MERGER I 2 1.1 Merger I 2 1.2 The Merger I Effective Time 2 1.3 Effect of Merger I 3 1.4 Organizational Documents 3 1.5 Directors a

May 28, 2025 EX-99.1

Signing Day Sports Progresses Transaction and Executes Definitive Agreement with BlockchAIn Digital Infrastructure, a Profitable Data Hosting Company Proposed business combination will create a public company engaged in Crypto Mining, Artificial Inte

Exhibit 99.1 Signing Day Sports Progresses Transaction and Executes Definitive Agreement with BlockchAIn Digital Infrastructure, a Profitable Data Hosting Company Proposed business combination will create a public company engaged in Crypto Mining, Artificial Intelligence (“AI”), and High-Performance Computing (“HPC”) Data Hosting Markets BlockchAIn Digital Infrastructure Generated Audited Revenue

May 28, 2025 EX-10.1

Voting and Support Agreement, dated as of May 27, 2025, among Blockchain Digital Infrastructure, Inc., Signing Day Sports, Inc. and certain stockholders of Signing Day Sports, Inc., dated as of May 27, 2025*

Exhibit 10.1 Execution Version VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT (this “Agreement”) is dated as of May 27, 2025, by and between BlockchAIn Digital Infrastructure, Inc., a Delaware corporation (“Holdings”), Signing Day Sports, Inc., a Delaware corporation (the “Company” or “SGN”) and the SGN shareholders set forth in Schedule A attached hereto (each an “SGN Principal” a

May 28, 2025 EX-2.1

Business Combination Agreement, dated as of May 27, 2025, among Signing Day Sports, Inc., BlockchAIn Digital Infrastructure, Inc., One Blockchain LLC, BCDI Merger Sub I Inc., and BCDI Merger Sub II LLC*

Exhibit 2.1 Execution Version BUSINESS COMBINATION AGREEMENT by and among SIGNING DAY SPORTS, INC., BLOCKCHAIN DIGITAL INFRASTRUCTURE, INC., BCDI Merger Sub I Inc., BCDI Merger Sub II LLC and ONE BLOCKCHAIN LLC Dated as of May 27, 2025 TABLE OF CONTENTS Page Article I MERGER I 2 1.1 Merger I 2 1.2 The Merger I Effective Time 2 1.3 Effect of Merger I 3 1.4 Organizational Documents 3 1.5 Directors a

May 15, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission F

May 15, 2025 EX-99.1

Signing Day Sports Announces Selected Financial Results for Quarter Ended March 31, 2025 and Provides Business Update Reduces Net Loss For Quarter by 66% Year-Over-Year, Reflecting Improved Operating Efficiency Strong Combine Participation and Scalab

Exhibit 99.1 Signing Day Sports Announces Selected Financial Results for Quarter Ended March 31, 2025 and Provides Business Update Reduces Net Loss For Quarter by 66% Year-Over-Year, Reflecting Improved Operating Efficiency Strong Combine Participation and Scalable Digital Platform Expected to Drive Higher Margin Growth SCOTTSDALE, Ariz., May 15, 2025 - Signing Day Sports, Inc. (“Signing Day Sport

May 15, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 ☐ TRANSITION REPORT P

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-41863 SIGNING D

April 18, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 17, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 17, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

April 17, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 17, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 17, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

April 17, 2025 EX-99.1

Signing Day Sports/U.S. Army Bowl Combines Provide Recruitment Opportunities, Draw Strong Participation

Exhibit 99.1 Signing Day Sports/U.S. Army Bowl Combines Provide Recruitment Opportunities, Draw Strong Participation SCOTTSDALE, Ariz., April 17, 2025 – Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app and platform, today provided an in-season update on the 2025 Military Appreciation U.S. Army Bowl National Combine S

April 14, 2025 EX-99.1

Signing Day Sports Signs Non-Binding Letter of Intent to Acquire All Equity of blockchAIn Digital Infrastructure, a Profitable Data Hosting Company blockchAIn Digital Infrastructure Generated Unaudited Revenue of $26.8 million and Net Income of $4.0

Exhibit 99.1 Signing Day Sports Signs Non-Binding Letter of Intent to Acquire All Equity of blockchAIn Digital Infrastructure, a Profitable Data Hosting Company blockchAIn Digital Infrastructure Generated Unaudited Revenue of $26.8 million and Net Income of $4.0 million in 2024 blockchAIn Digital Infrastructure Focused on Crypto Mining, Artificial Intelligence (“AI”), and High-Performance Computin

April 14, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 14, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 14, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

April 11, 2025 EX-10.3

Independent Director Agreement, dated as of May 9, 2023, between Signing Day Sports, Inc. and Greg Economou

Exhibit 10.3 INDEPENDENT DIRECTOR AGREEMENT INDEPENDENT DIRECTOR AGREEMENT (this “Agreement”), dated May 9, 2023 (the “Effective Date”), by and between Signing Day Sports, Inc., a Delaware corporation (the “Company”), and the undersigned (the “Director”). RECITALS A. The Company is filing a registration statement on Form S-1 (as amended from time to time, the “Registration Statement”) relating to

April 11, 2025 EX-99.1

Signing Day Sports Announces Selected Financial Results for the Year Ended December 31, 2024 Company Achieves 100% Revenue Growth For Year Ended December 31, 2024, Compared to 2023

Exhibit 99.1 Signing Day Sports Announces Selected Financial Results for the Year Ended December 31, 2024 Company Achieves 100% Revenue Growth For Year Ended December 31, 2024, Compared to 2023 SCOTTSDALE, Ariz., April 11, 2025 - Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app and platform to aid high school athlete

April 11, 2025 EX-10.4

Independent Director Agreement, dated as of February 12, 2024, between Signing Day Sports, Inc. and Peter Borish

Exhibit 10.4 INDEPENDENT DIRECTOR AGREEMENT INDEPENDENT DIRECTOR AGREEMENT (this “Agreement”), dated February 12, 2024 (the “Effective Date”), by and between Signing Day Sports, Inc., a Delaware corporation (the “Company”), and the undersigned (the “Director”). RECITALS A. The Company desires to appoint the Director to serve on the Company’s board of directors (the “Board”), which will include mem

April 11, 2025 EX-99.2

SIGNING DAY SPORTS PROVIDES ANNOUNCEMENT ON 2024 ANNUAL REPORT

Exhibit 99.2 SIGNING DAY SPORTS PROVIDES ANNOUNCEMENT ON 2024 ANNUAL REPORT SCOTTSDALE, Ariz., April 11, 2025 - Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app and platform to aid high school athletes in the recruitment process, today advises that its audited consolidated financial statements for the fiscal year end

April 11, 2025 EX-10.1

Independent Director Agreement, dated as of April 19, 2023, between Signing Day Sports, Inc. and Glen Kim

Exhibit 10.1 INDEPENDENT DIRECTOR AGREEMENT INDEPENDENT DIRECTOR AGREEMENT (this “Agreement”), dated April 19, 2023 (the “Effective Date”), by and between Signing Day Sports, Inc., a Delaware corporation (the “Company”), and the undersigned (the “Director”). RECITALS A. The Company is filing a registration statement on Form S-1 (as amended from time to time, the “Registration Statement”) relating

April 11, 2025 EX-4.1

Description of Securities of Signing Day Sports, Inc.

Exhibit 4.1 DESCRIPTION OF SECURITIES General The authorized capital stock of Signing Day Sports, Inc., a Delaware corporation (“we,” “us,” “our,” the “Company,” and “our company”), consists of 150,000,000 shares of common stock, par value $0.0001 per share (“common stock”), and 15,000,000 shares of preferred stock, par value $0.0001 per share (“preferred stock”). No other classes of securities ar

April 11, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended: December 31, 2024 ☐ TRANSITION REPORT PURSU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended: December 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-41863 SIGNING DAY SPORTS,

April 11, 2025 EX-10.2

Amended and Restated Independent Director Agreement, dated as of April 19, 2023, between Signing Day Sports, Inc. and Roger Mason Jr.

Exhibit 10.2 AMENDED AND RESTATED INDEPENDENT DIRECTOR AGREEMENT AMENDED AND RESTATED INDEPENDENT DIRECTOR AGREEMENT (this “Agreement”), dated April 19, 2023 (the “Effective Date”), by and between Signing Day Sports, Inc., a Delaware corporation (the “Company”), and the undersigned (the “Director”). RECITALS A. The Company is filing a registration statement on Form S-1 (as amended from time to tim

April 11, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 11, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

April 1, 2025 NT 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 12b-25

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 12b-25 SEC File Number 001-41863 CUSIP Number 82670R 305 NOTIFICATION OF LATE FILING (Check One): ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form 10-D ☐ Form N-CEN ☐ Form N-CSR For Period Ended: December 31, 2024 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q For Transition Period Ended: Nothing in this form shall be construed to imply that the Commission has verified any information contained herein.

March 6, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) March 6, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) March 6, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission F

March 6, 2025 EX-99.1

Signing Day Sports to Prioritize Strategic Focus on Technology and Customer Growth Opportunities while Simultaneously Exploring Potential Merger and Acquisition Opportunities

Exhibit 99.1 Signing Day Sports to Prioritize Strategic Focus on Technology and Customer Growth Opportunities while Simultaneously Exploring Potential Merger and Acquisition Opportunities SCOTTSDALE, Arizona, March 6, 2025 - Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app and platform to aid high school athletes in

March 4, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 4, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 4, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commission

February 21, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) February 21, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) February 21, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissi

February 21, 2025 EX-99.1

Signing Day Sports Files Audited Financial Statements for 2023 and 2022, Along With Unaudited Financial Statements for the Nine Months Ending September 30, 2024 and 2023, for Dear Cashmere Group Holding Company (d/b/a Swifty Global), and Pro Forma Fi

Exhibit 99.1 Signing Day Sports Files Audited Financial Statements for 2023 and 2022, Along With Unaudited Financial Statements for the Nine Months Ending September 30, 2024 and 2023, for Dear Cashmere Group Holding Company (d/b/a Swifty Global), and Pro Forma Financial Statements Related to Its Planned Acquisition of Swifty Global SCOTTSDALE, Arizona, February 21, 2025 - Signing Day Sports, Inc.

February 20, 2025 EX-99.2

DEAR CASHMERE GROUP HOLDING COMPANY Consolidated Financial Statements For the Years Ended December 31, 2023 and 2022 With Report of Independent Registered Public Accounting Firm

Exhibit 99.2 DEAR CASHMERE GROUP HOLDING COMPANY Consolidated Financial Statements For the Years Ended December 31, 2023 and 2022 With Report of Independent Registered Public Accounting Firm DEAR CASHMERE GROUP HOLDING COMPANY Table of Contents For the Years Ended December 31, 2023 and 2022 Pages Report of Independent Registered Public Accounting Firm 2 Consolidated Balance Sheets 3 Consolidated S

February 20, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) February 20, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) February 20, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissi

February 20, 2025 EX-99.3

Dear Cashmere Group Holding Company For the Nine Months Ended September 30th, 2024

Exhibit 99.3 Dear Cashmere Group Holding Company For the Nine Months Ended September 30th, 2024 (Unaudited) INDEX 1) Condensed Consolidated Balance sheet as of September 30th, 2024, and December 31st, 2023. 2 2) Condensed Consolidated Income Statement for nine months ended September 30th, 2024, and 2023. 3 3) Condensed Consolidated Statement of other comprehensive Income for nine months ended Sept

February 20, 2025 EX-99.4

SIGNING DAY SPORTS, INC. UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS

Exhibit 99.4 SIGNING DAY SPORTS, INC. UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS The following unaudited pro forma condensed combined financial information combines the historical consolidated financial position and results of operations of Signing Day Sports, Inc. (“Signing Day Sports” or “SGN”) and Dear Cashmere Group Holding Company d/b/a Swifty Global (“Swifty Global”). On Jan

February 20, 2025 EX-99.1

RISK FACTORS

Exhibit 99.1 RISK FACTORS Unless stated otherwise or dictated by context, all capitalized terms used herein but not defined shall have the meanings set forth in the Current Report on Form 8-K filed by Signing Day Sports, Inc., a Delaware corporation (the “Company”), with the Securities and Exchange Commission to which this risk factors document is attached (the “Form 8-K”). The following risks and

February 4, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) February 3, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissio

February 4, 2025 EX-10.1

Executive Employment Agreement, dated as of February 4, 2025, between Signing Day Sports, Inc. and Damon Rich

Exhibit 10.1 EXECUTIVE EMPLOYMENT AGREEMENT EXECUTIVE EMPLOYMENT AGREEMENT, dated February 4, 2025 (this “Agreement”), by and between Signing Day Sports, Inc., a Delaware corporation (the “Company”), and Damon Rich, an individual (“Executive”). Each of the Company and Executive are sometimes referred to in this Agreement individually as a “Party” and, collectively, as the “Parties.” This Agreement

February 4, 2025 EX-10.2

Employee Confidential Information and Inventions Assignment Agreement, effective February 4, 2025, between Signing Day Sports, Inc. and Damon Rich

Exhibit 10.2 EMPLOYEE CONFIDENTIAL INFORMATION AND INVENTIONS ASSIGNMENT AGREEMENT In consideration of my employment or continued employment by Signing Day Sports, Inc., a Delaware corporation (“Company”), and the compensation being paid or to be paid to me during my employment with Company, I agree to the terms of this Agreement as follows: 1. Confidential Information Protections. 1.1 Nondisclosu

January 31, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) January 31, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) January 31, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissio

January 31, 2025 EX-99.1

Signing Day Sports Retains Rights as “National Recruiting Partner” to U.S. Army Bowl Through 2026 in New Deal Includes National and Specified Regional Combines

Exhibit 99.1 Signing Day Sports Retains Rights as “National Recruiting Partner” to U.S. Army Bowl Through 2026 in New Deal Includes National and Specified Regional Combines SCOTTSDALE, Ariz., January 31, 2025 - Signing Day Sports, Inc. (“Signing Day Sports” or the “Company”) (NYSE American: SGN), the developer of the Signing Day Sports app and platform to aid high school athletes in the recruitmen

January 30, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) January 30, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) January 30, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissio

January 30, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) January 29, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) January 29, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissio

January 30, 2025 EX-10.1

Offer of Voluntary Temporary Reduction of Exercise Price of Warrant, dated as of January 29, 2025, of Signing Day Sports, Inc. to FirstFire Global Opportunities Fund, LLC

Exhibit 10.1 SIGNING DAY SPORTS, INC. 8355 East Hartford Rd., Suite 100 Scottsdale, AZ 85255 January 29, 2025 FirstFire Global Opportunities Fund, LLC 1040 First Avenue, Suite 190 New York, NY 10022 Attention: Eli Fireman Email: [email protected] Re: Offer of Voluntary Temporary Reduction of Exercise Price of Warrant Dear Mr. Fireman: Reference is made to that certain Common Stock Purchase Warr

January 30, 2025 EX-10.1

Sponsorship Agreement, dated as of January 30, 2025, between Goat Farm Sports, LLC and Signing Day Sports, Inc.

Exhibit 10.1 SPONSORSHIP AGREEMENT This Agreement, entered into on this 30th day of January 2025, between Goat Farm Sports, LLC, a New Jersey limited liability company (“GFS”), a New Jersey company with offices located at 14 Hemlock Road, Columbia, New Jersey 07832, and Signing Day Sports, Inc., a Delaware corporation (“SDS”), with an address of 8753 East Hartford Road, Suite 100, Scottsdale AZ 85

January 29, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) January 28, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) January 28, 2025 SIGNING DAY SPORTS, INC. (Exact name of registrant as specified in its charter) Delaware 001-41863 87-2792157 (State or other jurisdiction of incorporation) (Commissio

January 29, 2025 EX-2.1

Stock Purchase Agreement, dated as of January 28, 2025, among Signing Day Sports, Inc., Dear Cashmere Group Holding Company, James Gibbons, and Nicolas Link

Exhibit 2.1 EXECUTION COPY STOCK PURCHASE AGREEMENT by and among DEAR CASHMERE GROUP HOLDING COMPANY, a Nevada corporation, SIGNING DAY SPORTS, INC., a Delaware corporation, JAMES GIBBONS and NICOLAS LINK January 28, 2025 TABLE OF CONTENTS Page Article I. THE PURCHASE AND SALE OF COMPANY COMMON STOCK 2 Section 1.01 Purchase and Sale of the Sellers’ Shares 2 Section 1.02 Closing 2 Section 1.03 Acce

January 29, 2025 424B5

Up to $5,072,010.53 Shares of Common Stock

Filed Pursuant to Rule 424(b)(5) Registration No. 333-283559 PROSPECTUS SUPPLEMENT (To Prospectus dated December 5, 2024) Up to $5,072,010.53 Shares of Common Stock This prospectus supplement amends and supplements the information in the prospectus supplement, dated December 5, 2024 (the “Prior Prospectus Supplement”), relating to the offer and sale of up to $2,709,817 of shares of our common stoc

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