ESIO / Electro Scientific Industries, Inc. - SEC-arkivering, Årsberetning, Fuldmagtserklæring

Electro Scientific Industries, Inc.
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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 Electro Scientific Industries, Inc.
SEC Filings (Chronological Order)
Denne side giver en komplet, kronologisk liste over SEC-arkiveringer, eksklusive ejerskabsregistreringer, som vi leverer andre steder.
February 14, 2019 15-12G

ESIO / Electro Scientific Industries, Inc. 15-12G

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 000-12853 Electro Scientific Industries, Inc. (Exact name of registrant as s

February 11, 2019 SC 13G/A

ESIO / Electro Scientific Industries, Inc. / VANGUARD GROUP INC Passive Investment

electroscientificindustriesi.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1 )* Name of issuer: Electro Scientific Industries Inc Title of Class of Securities: Common Stock CUSIP Number: 285229100 Date of Event Which Requires Filing of this Statement: December 31, 2018

February 8, 2019 SC 13G/A

ESIO / Electro Scientific Industries, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 11)* ELECTRO SCIENTIFIC INDS INC (Name of Issuer) Common Stock (Title of Class of Securities) 285229100 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

S-8 POS 1 s002644s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on February 1, 2019 Registration No. 002-91731 Registration No. 033-2623 Registration No. 033-2624 Registration No. 033-34098 Registration No. 033-37148 Registration No. 033-46970 Registration No. 033-70584 Registration No. 033-63705 Registration No. 333-16485 Registration No. 333-16487 Registration No. 333-295

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

S-8 POS 1 s002644s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on February 1, 2019 Registration No. 002-91731 Registration No. 033-2623 Registration No. 033-2624 Registration No. 033-34098 Registration No. 033-37148 Registration No. 033-46970 Registration No. 033-70584 Registration No. 033-63705 Registration No. 333-16485 Registration No. 333-16487 Registration No. 333-295

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

S-8 POS 1 s002644s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on February 1, 2019 Registration No. 002-91731 Registration No. 033-2623 Registration No. 033-2624 Registration No. 033-34098 Registration No. 033-37148 Registration No. 033-46970 Registration No. 033-70584 Registration No. 033-63705 Registration No. 333-16485 Registration No. 333-16487 Registration No. 333-295

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

S-8 POS 1 s002644s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on February 1, 2019 Registration No. 002-91731 Registration No. 033-2623 Registration No. 033-2624 Registration No. 033-34098 Registration No. 033-37148 Registration No. 033-46970 Registration No. 033-70584 Registration No. 033-63705 Registration No. 333-16485 Registration No. 333-16487 Registration No. 333-295

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

S-8 POS 1 s002644s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on February 1, 2019 Registration No. 002-91731 Registration No. 033-2623 Registration No. 033-2624 Registration No. 033-34098 Registration No. 033-37148 Registration No. 033-46970 Registration No. 033-70584 Registration No. 033-63705 Registration No. 333-16485 Registration No. 333-16487 Registration No. 333-295

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

S-8 POS 1 s002644s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on February 1, 2019 Registration No. 002-91731 Registration No. 033-2623 Registration No. 033-2624 Registration No. 033-34098 Registration No. 033-37148 Registration No. 033-46970 Registration No. 033-70584 Registration No. 033-63705 Registration No. 333-16485 Registration No. 333-16487 Registration No. 333-295

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

S-8 POS 1 s002644s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on February 1, 2019 Registration No. 002-91731 Registration No. 033-2623 Registration No. 033-2624 Registration No. 033-34098 Registration No. 033-37148 Registration No. 033-46970 Registration No. 033-70584 Registration No. 033-63705 Registration No. 333-16485 Registration No. 333-16487 Registration No. 333-295

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

S-8 POS 1 s002644s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on February 1, 2019 Registration No. 002-91731 Registration No. 033-2623 Registration No. 033-2624 Registration No. 033-34098 Registration No. 033-37148 Registration No. 033-46970 Registration No. 033-70584 Registration No. 033-63705 Registration No. 333-16485 Registration No. 333-16487 Registration No. 333-295

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

S-8 POS 1 s002644s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on February 1, 2019 Registration No. 002-91731 Registration No. 033-2623 Registration No. 033-2624 Registration No. 033-34098 Registration No. 033-37148 Registration No. 033-46970 Registration No. 033-70584 Registration No. 033-63705 Registration No. 333-16485 Registration No. 333-16487 Registration No. 333-295

February 1, 2019 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS

S-8 POS 1 s002644s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on February 1, 2019 Registration No. 002-91731 Registration No. 033-2623 Registration No. 033-2624 Registration No. 033-34098 Registration No. 033-37148 Registration No. 033-46970 Registration No. 033-70584 Registration No. 033-63705 Registration No. 333-16485 Registration No. 333-16487 Registration No. 333-295

February 1, 2019 POS AM

ESIO / Electro Scientific Industries, Inc. POS AM

POS AM 1 s002644x4posam.htm POS AM As filed with the Securities and Exchange Commission on February 1, 2019 Registration No. 333-35927 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-3 REGISTRATION No. 333-35927 Under The Securities Act of 1933 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact Name of Registrant as Specified in its Charter)

February 1, 2019 POS AM

ESIO / Electro Scientific Industries, Inc. POS AM

As filed with the Securities and Exchange Commission on February 1, 2019 Registration No.

February 1, 2019 POS AM

ESIO / Electro Scientific Industries, Inc. POS AM

POS AM 1 s002644x2posam.htm POS AM As filed with the Securities and Exchange Commission on February 1, 2019 Registration No. 033-58292 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-3 REGISTRATION No. 033-58292 Under The Securities Act of 1933 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact Name of Registrant as Specified in its Charter)

February 1, 2019 EX-3.2

AMENDED AND RESTATED BYLAWS ELECTRO SCIENTIFIC INDUSTRIES, INC. ARTICLE I PRINCIPAL OFFICE

Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF ELECTRO SCIENTIFIC INDUSTRIES, INC. ARTICLE I PRINCIPAL OFFICE The principal office of Electro Scientific Industries, Inc., an Oregon corporation (the “Corporation”), will be located at the Corporation’s principal place of business or such other place as the Board of Directors may designate. The Corporation may have such other offices, either in or out of

February 1, 2019 EX-10.3

EMPLOYMENT AGREEMENT

Exhibit 10.3 EMPLOYMENT AGREEMENT This is an EMPLOYMENT AGREEMENT dated [DATE] (“Employment Agreement”), by and between, on the one hand, Electro Scientific Industries, Inc., an Oregon corporation (the “Company”) and MKS Instruments, Inc., a Massachusetts company (“MKS”), and on the other hand, Steven L. Harris of Sisters, Oregon (“Employee”). The effective date of this Employment Agreement (the “

February 1, 2019 EX-10.4

EMPLOYMENT AGREEMENT

Exhibit 10.4 EMPLOYMENT AGREEMENT This is an EMPLOYMENT AGREEMENT dated January 29, 2019 (“Employment Agreement”), by and between, on the one hand, Electro Scientific Industries, Inc., an Oregon corporation (the “Company”) and MKS Instruments, Inc., a Massachusetts company (“MKS”), and on the other hand, John Williams of Lake Oswego, Oregon (“Employee”). The effective date of this Employment Agree

February 1, 2019 8-K

Changes in Control of Registrant, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Material Modification to Rights of Security Holders, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 1, 2019 ELECTRO SCIENTIFIC INDUSTRIES, INC.

February 1, 2019 EX-10.2

CONSULTING AGREEMENT

Exhibit 10.2 CONSULTING AGREEMENT This is a Consulting Agreement dated January 10, 2019 (“Consulting Agreement”), by and among MKS Instruments, Inc., a Massachusetts company (“MKS”), Electro Scientific Industries, Inc., an Oregon corporation (the “Company”), and Allen Muhich of Portland, Oregon (“Muhich”). The “Effective Date” of this Consulting Agreement is defined in Section 15 below. WHEREAS, M

February 1, 2019 EX-10.1

CONSULTING AGREEMENT

Exhibit 10.1 CONSULTING AGREEMENT This is a Consulting Agreement dated January 11, 2019 (“Consulting Agreement”), by and among MKS Instruments, Inc., a Massachusetts company (“MKS”), Electro Scientific Industries, Inc., an Oregon corporation (the “Company”), and Michael D. Burger of Lake Oswego, Oregon (“Burger”). The “Effective Date” of this Consulting Agreement is defined in Section 15 below. WH

February 1, 2019 EX-3.1

STATE OF OREGON CORPORATION DIVISION 255 Capitol St. NE, Suite 151 Salem, Oregon 97310-1327

Exhibit 3.1 STATE OF OREGON CORPORATION DIVISION 255 Capitol St. NE, Suite 151 Salem, Oregon 97310-1327 Registry No. 047954-15 FOURTH AMENDED AND RESTATED ARTICLES OF INCORPORATION Business Corporation ELECTRO SCIENTIFIC INDUSTRIES, INC. These Fourth Amended and Restated Articles of Incorporation supersede the existing Articles of Incorporation of Electro Scientific Industries, Inc. and all amendm

January 30, 2019 10-Q

Unaudited condensed consolidated financial statements of Electro Scientific Industries, Inc. and subsidiaries as of December 29, 2018 and March 31, 2018 and the related condensed consolidated statements of operations, comprehensive income and cash flows for the three fiscal quarters ended December 29, 2018 and December 30, 2017 (incorporated herein by reference to Item 1 of Electro Scientific Industries, Inc.’s Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on January 30, 2019).

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 29, 2018 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

January 10, 2019 8-K

Financial Statements and Exhibits, Other Events, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 10, 2019 ELECTRO SCIENTIFIC INDUSTRIES, INC.

January 10, 2019 EX-99.1

ESI Shareholders Approve Merger Agreement with MKS Instruments, Inc.

Exhibit 99.1 ESI Shareholders Approve Merger Agreement with MKS Instruments, Inc. PORTLAND, Ore., January 10, 2019 - Electro Scientific Industries, Inc. (NASDAQ: ESIO), an innovator in laser-based manufacturing solutions for the micro-machining industry, announced that at a Special Meeting of Shareholders held earlier today, ESI shareholders voted to approve the previously announced definitive mer

January 1, 2019 DEFA14A

ESIO / Electro Scientific Industries, Inc. DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

December 26, 2018 DEFA14A

ESIO / Electro Scientific Industries, Inc. DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ý Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Definitive

December 26, 2018 DEFA14A

ESIO / Electro Scientific Industries, Inc. DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ý Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Definitive

December 26, 2018 DEFA14A

ESIO / Electro Scientific Industries, Inc. DEFA 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 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 the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive

December 19, 2018 DEFA14A

ESIO / Electro Scientific Industries, Inc. DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ý Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Definitive

December 14, 2018 8-K

Other Events

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 14, 2018 (December 10, 2018) ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction

December 6, 2018 DEFM14A

ESIO / Electro Scientific Industries, Inc. DEFM14A

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) 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  o Check the appropriate box:  o Preliminary Proxy Statement  o Confidential, for Use of the Commission Only (as permitted by Rule 1

November 19, 2018 PREM14A

ESIO / Electro Scientific Industries, Inc. PREM14A

PREM14A 1 s002523x1prem14a.htm PREM14A TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) 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  o Check the appropriate box: ☒ Preliminary Proxy Statement  o Confidential, for Use of the C

November 13, 2018 DEFA14A

ESIO / Electro Scientific Industries, Inc. DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ý Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Definitive

November 13, 2018 SC 13D

ESIO / Electro Scientific Industries, Inc. / Magnetar Financial LLC - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. )* ELECTRO SCIENTIFIC INDUSTRIES, INC. (Name of Issuer) Common Stock (Title of Class of Securities) 285229100 (CUSIP Number of Class of Securities) Alec N. Litowitz Magnetar Capital LLC 1603 Orrington Ave. Evanston, Illinois 60201 (847) 905-4400 (Name, Addre

November 13, 2018 EX-99.1

JOINT FILING AGREEMENT

Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k), as promulgated under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them a Statement on Schedule 13D (including amendments thereto) with regard to the common stock of Electro Scientific Industries, Inc. and further agree that this Joint Filing Agreement be

November 6, 2018 EX-10.1

Form of Board of Director Time-Based Restricted Stock Unit Award Agreement (August 2018)

RESTRICTED STOCK UNITS AWARD AGREEMENT This Award Agreement (the “Agreement”) is entered into as of [Grant Date] by and between Electro Scientific Industries, Inc.

November 6, 2018 10-Q

ESIO / Electro Scientific Industries, Inc. 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 29, 2018 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 Numbe

November 5, 2018 DEF 14A

ESIO / Electro Scientific Industries, Inc. DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ý Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Definitive

November 1, 2018 DFAN14A

MKSI / MKS Instruments, Inc. 8-K

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 1, 2018 MKS INSTRUMENTS, INC. (Exact name of registrant as specified in its charter) Massachusetts 000-23621 04-2277512 (State or other jurisdiction of incorporation) (Co

November 1, 2018 EX-99.1

Presentation made available by the Company and ESI to employees of the Company and ESI on November 1, 2018.

EX-99.1 Town Hall with ESI Employees MKS Overview and Update on Announced ESI Acquisition 1 November 2018 Exhibit 99.1 Safe Harbor for Forward Looking Statements Statements in this presentation regarding the proposed transaction between MKS Instruments, Inc. (“MKS”) and Electro Scientific Industries Inc. (“ESI”), the expected timetable for completing the transaction, future financial and operating

October 30, 2018 EX-2.1

Agreement and Plan of Merger by and among the Company, MKS Instruments, Inc. and EAS Equipment, Inc. dated October 29, 2018. Incorporated by reference to Exhibit 2.1 to the Company’s Current Report on Form 8-K filed on October 30, 2018.

Exhibit 2.1 EXECUTION VERSION AGREEMENT AND PLAN OF MERGER among MKS INSTRUMENTS, INC., EAS EQUIPMENT, INC. and ELECTRO SCIENTIFIC INDUSTRIES, INC. Dated as of October 29, 2018 Table of Contents Page Article I THE MERGER 1 Section 1.1 The Merger 1 Section 1.2 Closing 2 Section 1.3 Effective Time 2 Section 1.4 Effects of the Merger 2 Section 1.5 Articles of Incorporation; Bylaws 3 Section 1.6 Direc

October 30, 2018 EX-3.1

Amendment to 2009 Amended and Restated Bylaws. Incorporated by reference to Exhibit 3.1 of the Company’s Current Report on Form 8-K filed on October 30, 2018.

Exhibit 3.1 Bylaw Amendment ARTICLE VIII EXCLUSIVE FORUM Unless the Corporation consents in writing to the selection of an alternative forum, the state and federal courts located within the State of Oregon shall be the sole and exclusive forum for: (i) any derivative action or proceeding brought on behalf of the Corporation, (ii) any action asserting a claim for breach of a fiduciary duty owed by

October 30, 2018 EX-99.1

FORM OF SHAREHOLDER AGREEMENT

Exhibit 99.1 FORM OF SHAREHOLDER AGREEMENT This SHAREHOLDER AGREEMENT (this “Agreement”) is made and entered into as of October 29, 2018 by and between MKS Instruments, Inc., a Massachusetts corporation (“Parent”), and the undersigned shareholder (“Shareholder”) of Electro Scientific Industries Inc., an Oregon corporation (the “Company”). W I T N E S S E T H: WHEREAS, concurrently with the executi

October 30, 2018 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

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 30, 2018 (October 29, 2018) ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction o

October 30, 2018 DEF 14A

ESIO / Electro Scientific Industries, Inc. DEF 14A COMMUNICATION TO STAKEHOLDERS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ý Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Definitive

October 30, 2018 EX-10.1

Commitment Letter by and among the Company, Barclays and HSBC, dated October 29, 2018

EX-10.1 Exhibit 10.1 Execution Version BARCLAYS 745 Seventh Avenue New York, New York 10019 HSBC BANK USA, NATIONAL ASSOCIATION HSBC SECURITIES (USA) INC. 452 Fifth Avenue New York, NY 10018 PERSONAL AND CONFIDENTIAL October 29, 2018 MKS Instruments, Inc. 2 Tech Drive, Suite 201 Andover, Massachusetts 01810 Attention: Seth H. Bagshaw, Vice President, Chief Financial Officer & Treasurer Commitment

October 30, 2018 EX-99.1

Transcript of investor conference call held by the Company on October 30, 2018

EX-99.1 Exhibit 99.1 October-30-2018 13684603 Page 1 MKS Instruments, Inc. Call to Announce Agreement to Acquire Electro Scientific Industries, Inc. October-30-2018 13684603 Operator: Greetings, and welcome to MKS Instruments to acquire Electro Scientific Industries call. At this time all participants are in a listen-only mode. A question-and-answer session will follow the formal presentation. If

October 30, 2018 DFAN14A

MKSI / MKS Instruments, Inc. 8-K

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 29, 2018 MKS INSTRUMENTS, INC. (Exact name of registrant as specified in its charter) Massachusetts 000-23621 04-2277512 (State or other jurisdiction of incorporation) (Co

October 30, 2018 EX-2.1

Agreement and Plan of Merger, by and among the Company, Merger Sub and ESI, dated October 29, 2018

EX-2.1 Exhibit 2.1 EXECUTION VERSION AGREEMENT AND PLAN OF MERGER among MKS INSTRUMENTS, INC., EAS EQUIPMENT, INC. and ELECTRO SCIENTIFIC INDUSTRIES, INC. Dated as of October 29, 2018 Table of Contents Page Article I THE MERGER 2 Section 1.1 The Merger 2 Section 1.2 Closing 2 Section 1.3 Effective Time 2 Section 1.4 Effects of the Merger 2 Section 1.5 Articles of Incorporation; Bylaws 3 Section 1.

October 30, 2018 EX-99.1

ESI Announces Second Quarter Fiscal 2019 Results and Agreement to be Acquired by MKS Instruments, Inc.

ESI Announces Second Quarter Fiscal 2019 Results ESI Announces Second Quarter Fiscal 2019 Results and Agreement to be Acquired by MKS Instruments, Inc.

October 30, 2018 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): October 30, 2018 (October 29, 2018) ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction o

October 30, 2018 EX-99.2

Investor Presentation made available by the Company on October 30, 2018

Exhibit 99.2 ESI Announcement 10/30/2018 Exhibit 99.2 Safe Harbor for Forward Looking Statements Statements in this presentation regarding the proposed transaction between MKS Instruments, Inc. (“MKS”) and Electro Scientific Industries Inc. (“ESI”), the expected timetable for completing the transaction, future financial and operating results, benefits and synergies of the transaction, future oppor

October 30, 2018 EX-99.1

Press Release issued by the Company on October 30, 2018

Exhibit 99.1 Exhibit 99.1 MKS Instruments Announces Agreement to Acquire Electro Scientific Industries, Inc. • Complementary Solutions Broaden Position in Key Industrial Markets • Acquiring a Leading Laser System Supplier, Advancing ‘Surround the WorkpieceSM’ Offerings • Expands MKS’ Addressable Market by $2.2 Billion ANDOVER, Mass., October 30, 2018 — (GLOBE NEWSWIRE) — MKS Instruments, Inc. (NAS

October 30, 2018 DFAN14A

MKSI / MKS Instruments, Inc. FORM 8-K

Form 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 30, 2018 MKS INSTRUMENTS, INC. (Exact name of registrant as specified in its charter) Massachusetts 000-23621 04-2277512 (State or other jurisdiction of incorporation

August 8, 2018 8-K

ESIO / Electro Scientific Industries, Inc. 8-K (Current Report)

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 8, 2018 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation) (Com

August 7, 2018 EX-10.1

Form of Executive Time-Based Restricted Stock Unit Award Agreement (May 2018)

RESTRICTED STOCK UNITS AWARD AGREEMENT This Award Agreement (the “Agreement”) is entered into as of [Grant Date] by and between Electro Scientific Industries, Inc.

August 7, 2018 10-Q

ESIO / Electro Scientific Industries, Inc. 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2018 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: 0-

August 7, 2018 EX-10.2

Form of Executive Performance Market-Based Restricted Stock Unit Award Agreement (May 2018)

PERFORMANCE-BASED RESTRICTED STOCK UNITS AWARD AGREEMENT This Award Agreement (the “Agreement”) is entered into as of [Grant Date] by and between Electro Scientific Industries, Inc.

August 1, 2018 EX-99.1

ESI Announces Strong First Quarter Fiscal 2019 Results

ESI Announces Strong First Quarter Fiscal 2019 Results PORTLAND, Ore., Aug. 1, 2018 - Electro Scientific Industries, Inc. (NASDAQ:ESIO), an innovator of laser-based manufacturing solutions for the microtechnology industry, today announced results for its fiscal 2019 first quarter ended June 30, 2018. Financial measures are provided on both a GAAP and a non-GAAP basis. Non-GAAP results exclude the

August 1, 2018 8-K

ESIO / Electro Scientific Industries, Inc. 8-K (Current Report)

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 1, 2018 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation) (Com

July 10, 2018 DEF 14A

ESIO / Electro Scientific Industries, Inc. DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ý Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ý Defin

June 8, 2018 10-K

Audited consolidated financial statements of Electro Scientific Industries, Inc. and subsidiaries as of March 31, 2018 and April 1, 2017 and the related consolidated statements of operations, comprehensive income (loss), shareholders’ equity and cash flows for the three years in the period ended March 31, 2018 (incorporated herein by reference to Item 8 of Electro Scientific Industries, Inc.’s Annual Report on Form 10-K filed with the Securities and Exchange Commission on June 8, 2018).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ý ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2018 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 0-12853 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as

June 8, 2018 EX-21

Subsidiaries of the Company

EXHIBIT 21 ESI Subsidiaries As of March 31, 2018 Name State/Country of Incorporation Percentage of Voting Securities Owned ESI International Corp.

May 31, 2018 EX-1.01

Exhibit 1.01 - Conflict Minerals Report

Exhibit 1.01 Electro Scientific Industries Inc. Conflict Minerals Report For The Year Ended December 31, 2017 Electro Scientific Industries Inc., collectively with its subsidiaries (ESI), presents this report for the year ended December 31, 2017 to comply with Rule 13p-1 under the Securities Exchange Act of 1934 and the Security and Exchange Commission’s adopting release (the “Rule”). We have deci

May 31, 2018 SD

ESIO / Electro Scientific Industries, Inc. SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 13900 NW Science Park Drive, Portland, Oregon 97229 (Address of pri

May 8, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 form8k03312018.htm 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 8, 2018 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdict

May 8, 2018 EX-99.1

ESI Announces Fourth Quarter and Full Year Fiscal 2018 Results

Brian Smith ESI 503-672-5760 [email protected] ESI Announces Fourth Quarter and Full Year Fiscal 2018 Results PORTLAND, Ore. – May 8, 2018 – Electro Scientific Industries, Inc. (NASDAQ:ESIO), an innovator of laser-based manufacturing solutions for the microtechnology industry, today announced results for its fiscal 2018 fourth quarter and year ended March 31, 2018. Financial measures are provided on

February 9, 2018 SC 13G/A

ESIO / Electro Scientific Industries, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 10)* ELECTRO SCIENTIFIC INDS INC (Name of Issuer) Common Stock (Title of Class of Securities) 285229100 (CUSIP Number) December 31, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

February 8, 2018 SC 13G

ESIO / Electro Scientific Industries, Inc. / VANGUARD GROUP INC Passive Investment

electroscientificindustries.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 0 )* Name of issuer: Electro Scientific Industries Inc Title of Class of Securities: Common Stock CUSIP Number: 285229100 Date of Event Which Requires Filing of this Statement: December 31, 2017

February 6, 2018 EX-10.2

Form of Change in Control Agreement with the Company’s executive officers other than the Chief Executive Officer.

EX-10.2 3 ex-102changeofcontrolagreeme.htm EXHIBIT 10.2 ELECTRO SCIENTIFIC INDUSTRIES, INC. CHANGE IN CONTROL AGREEMENT This Change in Control Agreement (the “Agreement”) is made and entered into by and between (“Executive”) and Electro Scientific Industries, Inc., an Oregon corporation (the “Company”), effective as of (the “Effective Date”) and states in its entirety the Change in Control Agreeme

February 6, 2018 EX-10.1

Separation and Release Agreement, dated December 23, 2017, between the Company and Paul Oldham.

SEPARATION AND RELEASE AGREEMENT This Agreement is entered into by and between Electro Scientific Industries, Inc.

February 6, 2018 10-Q

ESIO / Electro Scientific Industries, Inc. 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 30, 2017 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

January 31, 2018 EX-99.1

ESI Announces Strong Third Quarter Fiscal 2018 Results

Exhibit Brian Smith ESI 503-672-5760 [email protected] ESI Announces Strong Third Quarter Fiscal 2018 Results PORTLAND, Ore. ? January 31, 2018 ? Electro Scientific Industries, Inc. (NASDAQ:ESIO), an innovator of laser-based manufacturing solutions for the microtechnology industry, today announced results for its fiscal 2018 third quarter ended December 30, 2017 . Financial measures are provided on b

January 31, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 form8kq31812302017.htm 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, 2018 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other

January 17, 2018 EX-99.1

ESI Reports Strong Preliminary Third Quarter 2018 Financial Results

EX-99.1 2 exhibit991preearningsrelea.htm EXHIBIT 99.1 Brian Smith ESI 503-672-5760 [email protected] ESI Reports Strong Preliminary Third Quarter 2018 Financial Results PORTLAND, Ore. - January 17, 2018 - Electro Scientific Industries, Inc. (Nasdaq: ESIO), an innovator in laser-based manufacturing solutions for the micro-machining industry, today reported preliminary financial results for the fiscal

January 17, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 a8-k2017x01x17preearningsr.htm 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 17, 2018 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State o

December 4, 2017 EX-99.1

ESI Selects Allen Muhich To Be Next CFO

Exhibit Brian Smith ESI 503-672-5760 [email protected] ESI Selects Allen Muhich To Be Next CFO PORTLAND, Ore. - December 4, 2017 - Electro Scientific Industries, Inc. (Nasdaq: ESIO), an innovator in laser-based manufacturing solutions for the micro-machining industry, today announced that Allen Muhich, former COO and CFO of ID Experts, will join as CFO and Corporate Secretary of the Company and will

December 4, 2017 8-K

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

Document 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 4, 2017 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorpor

November 7, 2017 10-Q

ESIO / Electro Scientific Industries, Inc. 10-Q (Quarterly Report)

Document Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

November 1, 2017 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Document 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 1, 2017 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorpor

November 1, 2017 EX-99.1

ESI Announces Second Quarter Fiscal 2018 Results

Exhibit Brian Smith ESI 503-672-5760 [email protected] ESI Announces Second Quarter Fiscal 2018 Results PORTLAND, Ore. ? November 1, 2017 ? Electro Scientific Industries, Inc. (NASDAQ:ESIO), an innovator of laser-based manufacturing solutions for the microtechnology industry, today announced results for its fiscal 2018 second quarter ended September 30, 2017 . Financial measures are provided on both

October 18, 2017 EX-99.1

ESI Announces Passing of Board Member John Medica

Exhibit Brian Smith 503-672-5760 [email protected] ESI Announces Passing of Board Member John Medica PORTLAND, Ore., October 18, 2017 - Electro Scientific Industries, Inc. (Nasdaq:ESIO), an innovator in laser-based manufacturing solutions for the micro-machining industry, today announced that a member of its Board of Directors, John Medica, passed away on Friday, October 13, 2017. John had been a mem

October 18, 2017 8-K

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

8-K 1 a8-k2017x10x18medica.htm 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 13, 2017 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or othe

September 26, 2017 EX-9.01

Press release dated September 26, 2017

Exhibit Brian Smith 503-672-5760 [email protected] ESI Appoints Lynne Camp to Board of Directors PORTLAND, Ore., September 26, 2017 - Electro Scientific Industries, Inc. (Nasdaq:ESIO), an innovator in laser-based manufacturing solutions for the micro-machining industry, today announced the appointment of Lynne Camp as a new member of the Company?s Board of Directors, effective October 2. Ms. Camp is

September 26, 2017 8-K

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

Document 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): September 22, 2017 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorp

August 18, 2017 S-8

Electro Scientific Industries S-8

Document As filed with the Securities and Exchange Commission on August 18, 2017 Registration No.

August 15, 2017 8-K

Current Report

8-K 1 a8-kannualmeeting2017.htm 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 10, 2017 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or othe

August 8, 2017 10-Q

Electro Scientific Industries 10-Q (Quarterly Report)

10-Q 1 fy18q110-q07012017.htm 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended July 1, 2017 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period

August 2, 2017 8-K

Electro Scientific Industries 8-K (Current Report/Significant Event)

Document 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 2, 2017 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporat

August 2, 2017 EX-99.1

ESI Announces First Quarter Fiscal 2018 Results

Exhibit Brian Smith ESI 503-672-5760 [email protected] ESI Announces First Quarter Fiscal 2018 Results PORTLAND, Ore. ? August 2, 2017 ? Electro Scientific Industries, Inc. (NASDAQ:ESIO), an innovator of laser-based manufacturing solutions for the microtechnology industry, today announced results for its fiscal 2018 first quarter ended July 1, 2017 . Financial measures are provided on both a GAAP and

July 21, 2017 DEFA14A

Electro Scientific Industries DEFA14A

DEFA14A 1 defa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ý Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitte

July 10, 2017 DEF 14A

Electro Scientific Industries DEF 14A

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)

June 28, 2017 10-K/A

Electro Scientific Industries 10-K/A (Annual Report)

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K/A Amendment No. 1 ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended April 1, 2017 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 0-12853 ELECTRO SCIENTIFIC INDUSTRIES, INC. (E

June 14, 2017 10-K

Electro Scientific Industries 10-K FY2017 (Annual Report)

10-K 1 esi10-k04012017.htm 10-K FY2017 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ý ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended April 1, 2017 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 0-12853 ELECTRO SCIENTIFIC INDUSTR

May 31, 2017 EX-1.01

Electro Scientific Industries Inc. Conflict Minerals Report For The Year Ended December 31, 2016

Exhibit Exhibit 1.01 Electro Scientific Industries Inc. Conflict Minerals Report For The Year Ended December 31, 2016 Electro Scientific Industries Inc., collectively with its subsidiaries (ESI), presents this report for the year ended December 31, 2016 to comply with Rule 13p-1 under the Securities Exchange Act of 1934 and the Security and Exchange Commission?s adopting release (the ?Rule?). We h

May 31, 2017 SD

Electro Scientific Industries SD CY 2016

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 13900 NW Science Park Drive, Portland, Oregon 97229 (Addre

May 17, 2017 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

8-K 1 a8-ksidneyneodeparture.htm 8-K NEO CHANGE 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 11, 2017 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (Stat

May 9, 2017 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 form8k04012017.htm 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 9, 2017 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdict

May 9, 2017 EX-99.1

ESI Announces Fourth Quarter and Full Year Fiscal 2017 Results

Exhibit Brian Smith ESI 503-672-5760 [email protected] ESI Announces Fourth Quarter and Full Year Fiscal 2017 Results PORTLAND, Ore. ? May 9, 2017 ? Electro Scientific Industries, Inc. (NASDAQ:ESIO), an innovator of laser-based manufacturing solutions for the microtechnology industry, today announced results for its fiscal 2017 fourth quarter and year ended April 1, 2017 . Financial measures are prov

February 10, 2017 EX-99.1

ESI Announces Corporate Restructuring Actions aimed to improve execution and streamline the cost structure

EX-99.1 2 exhibit-pr.htm EXHIBIT 99.1 PRESS RELEASE Brian Smith ESI 503-672-5760 [email protected] ESI Announces Corporate Restructuring Actions aimed to improve execution and streamline the cost structure PORTLAND, Ore. - February 10, 2017 - Electro Scientific Industries, Inc. (Nasdaq: ESIO), an innovator in laser-based manufacturing solutions for the micro-machining industry, today announced a corp

February 10, 2017 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Material Impairments, Costs Associated with Exit or Disposal Activities

8-K 1 a8-kcorprestructuringq417.htm 8-K CORP RESTRUCTURING 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 8, 2017 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 9

February 9, 2017 SC 13G/A

ESIO / Electro Scientific Industries, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 8)* ELECTRO SCIENTIFIC INDS INC (Name of Issuer) Common Stock (Title of Class of Securities) 285229100 (CUSIP Number) December 31, 2016 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

February 8, 2017 EX-10.1

Time-Based Restricted Stock Unit Agreement between the Company and Michael Burger, dated as of October 3, 2016. Incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended December 31, 2016.

RESTRICTED STOCK UNITS AWARD AGREEMENT This Award Agreement (the “Agreement”) is entered into as of October 3, 2016 by and between Electro Scientific Industries, Inc.

February 7, 2017 10-Q

Electro Scientific Industries 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2016 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

February 6, 2017 SC 13D/A

ESIO / Electro Scientific Industries, Inc. / Nierenberg Investment Management Company, Inc. - FEBRUARY 6, 2017 Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 19) ELECTRO SCIENTIFIC INDUSTRIES INC. (ESIO) (Name of Issuer) Common Stock (Title of Class of Securities) 285229100 (CUSIP Number) David Nierenberg The D3 Family Funds 19605 NE 8th Street Camas, WA 98607 (360) 604-8600 With a copy to: Christopher P. Davis K

February 1, 2017 EX-10.1

Amended and Restated Loan and Security Agreement, dated January 31, 2017, between the Company and Silicon Valley Bank. Incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed on February 1, 2017.

Exhibit AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT THIS AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT (this ? Agreement ?) dated as of , 2017 (the ? Effective Date ?) between SILICON VALLEY BANK , a California corporation (? Bank ?), and ELECTRO SCIENTIFIC INDUSTRIES, INC.

February 1, 2017 8-K

Electro Scientific Industries 8-K (Current Report/Significant Event)

Document 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, 2017 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorpor

February 1, 2017 8-K

Electro Scientific Industries 8-K (Current Report/Significant Event)

Document 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 1, 2016 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorpor

February 1, 2017 EX-99.1

ESI Announces Third Quarter Fiscal 2017 Results

EX-99.1 2 exhibit991q31712312016.htm EXHIBIT 99.1 Brian Smith ESI 503-672-5760 [email protected] ESI Announces Third Quarter Fiscal 2017 Results PORTLAND, Ore. – February 1, 2017 – Electro Scientific Industries, Inc. (NASDAQ:ESIO), an innovator of laser-based manufacturing solutions for the microtechnology industry, today announced results for its fiscal 2017 third quarter ended December 31, 2016. Fi

January 10, 2017 EX-99.1

ESI Strengthens Cash Position and Announces Preliminary Third Quarter Orders

EX-99.1 7 exhibit991prereleaseorders.htm EXHIBIT 99.1 PRESS RELEASE Brian Smith ESI 503-672-5760 [email protected] ESI Strengthens Cash Position and Announces Preliminary Third Quarter Orders PORTLAND, Ore. - January 10, 2017 - Electro Scientific Industries, Inc. (Nasdaq: ESIO), an innovator in laser-based manufacturing solutions for the micro-machining industry, announced that CEO Michael Burger wil

January 10, 2017 EX-10.4

Deed of Trust, Assignment of Leases and Rents, Security Agreement, and Fixture Filing, dated January 9, 2017, by ESI Leasing, LLC in favor of WFG National Title Insurance Company, as trustee, for the benefit of First Technology Federal Credit Union. Incorporated by reference to Exhibit 10.4 of the Company’s Current Report.

EX-10.4 5 a104deedoftrust.htm EXHIBIT 10.4 DEED OF TRUST ESI LEASING, LLC, as grantor (Borrower) to WFG National Title Insurance Company, as trustee (Trustee) for the benefit of FIRST TECHNOLOGY FEDERAL CREDIT UNION, as beneficiary (Lender) DEED OF TRUST, ASSIGNMENT OF LEASES AND RENTS, SECURITY AGREEMENT, AND FIXTURE FILING Dated: As of January 9, 2017 Location: Portland, Oregon County: Washingto

January 10, 2017 EX-10.2

Promissory Note, dated January 9, 2017, by ESI Leasing, LLC in favor of First Technology Federal Credit Union. Incorporated by reference to Exhibit 10.2 of the Company’s Current Report on Form 8-K filed on January 10, 2017.

Exhibit Exhibit 10.2 PROMISSORY NOTE $14,000,000.00 Portland, Oregon January 9, 2017 FOR VALUE RECEIVED ESI LEASING, LLC, an Oregon limited liability company, having its principal place of business at 13900 N.W. Science Park Drive, Portland, Oregon 97229 (together with its respective permitted successors and assigns " Borrower "), hereby unconditionally promises to pay to the order of FIRST TECHNO

January 10, 2017 EX-10.3

Lease, dated January 9, 2017, between ESI Leasing, LLC and Electro Scientific Industries, Inc. Incorporated by reference to Exhibit 10.3 of the Company’s Current Report on Form 8-K filed on January 10, 2017.

EX-10.3 4 a103leasebetweenesileasing.htm EXHIBIT 10.3 LEASING AGREEMENT LEASE THIS LEASE is entered into this 9th day of January 2017 (the “Effective Date”), between ESI Leasing, LLC, an Oregon limited liability company (“Landlord”) and Electro Scientific Industries, Inc., an Oregon corporation (“Tenant”). RECITALS A. Tenant wishes to lease from Landlord the following property (the “Property”) loc

January 10, 2017 8-K

Electro Scientific Industries 8-K FIRST TECH MORTGAGE (Current Report/Significant Event)

Document 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 9, 2017 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorpora

January 10, 2017 EX-10.1

Loan Agreement, dated January 9, 2017, between ESI Leasing, LLC and First Technology Federal Credit Union. Incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed on January 10, 2017.

Exhibit LOAN AGREEMENT Dated as of January 9, 2017 Between ESI LEASING, LLC , as Borrower and FIRST TECHNOLOGY FEDERAL CREDIT UNION , as Lender Table of Contents Page I.

January 10, 2017 EX-10.5

Unconditional Guaranty of Payment, dated January 9, 2017, by Electro Scientific Industries, Inc. in favor of First Technology Federal Credit Union. Incorporated by reference to Exhibit 10.5 of the Company’s Current Report on Form 8-K filed on January 10, 2017.

EX-10.5 6 a105unconditionalguarantyo.htm EXHIBIT 10.5 UNCONDITIONAL GUARANTEE UNCONDITIONAL GUARANTY OF PAYMENT This UNCONDITIONAL GUARANTY OF PAYMENT (this "Guaranty") is entered into as of January 9, 2017, by ELECTRO SCIENTIFIC INDUSTRIES, INC., an Oregon limited liability company ("Guarantor"), having an address at 13900 NW Science Park Drive, Portland, Oregon 97229, in favor of and for the ben

November 9, 2016 10-Q

Electro Scientific Industries 10-Q (Quarterly Report)

Document Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

November 9, 2016 EX-10.5

Form of Performance-Based Restricted Stock Unit Agreement for May 2016 awards. Incorporated by reference to Exhibit 10.5 to the Company’s Quarterly Report on Form 10-Q for the quarter ended October 1, 2016.

EX-10.5 2 ex-105formofperformancexba.htm EXHIBIT 10.5 Executive 2016 PRSU Agreement PERFORMANCE-BASED RESTRICTED STOCK UNITS AWARD AGREEMENT This Award Agreement (the “Agreement”) is entered into as of May 17, 2016 by and between Electro Scientific Industries, Inc., an Oregon corporation (the “Company”), and (“Recipient”), for the grant of restricted stock units with respect to the Company’s Commo

November 1, 2016 EX-99.1

ESI Announces Second Quarter Fiscal 2017 Results

Exhibit Brian Smith ESI 503-672-5760 [email protected] ESI Announces Second Quarter Fiscal 2017 Results PORTLAND, Ore. ? November 1, 2016 ? Electro Scientific Industries, Inc. (NASDAQ:ESIO), an innovator of laser-based manufacturing solutions for the microtechnology industry, today announced results for its fiscal 2017 second quarter ended October 1, 2016 . Financial measures are provided on both a G

November 1, 2016 8-K

Electro Scientific Industries 8-K (Current Report/Significant Event)

Document 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 1, 2016 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorpor

October 7, 2016 SC 13D/A

ESIO / Electro Scientific Industries, Inc. / Nierenberg Investment Management Company, Inc. - OCTOBER 7, 2016 Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 18) ELECTRO SCIENTIFIC INDUSTRIES INC. (ESIO) (Name of Issuer) Common Stock (Title of Class of Securities) 285229100 (CUSIP Number) David Nierenberg The D3 Family Funds 19605 NE 8th Street Camas, WA 98607 (360) 604-8600 With a copy to: Christopher P. Davis K

September 29, 2016 EX-24.1

POWER OF ATTORNEY

Exhibit EXHIBIT 24.1 POWER OF ATTORNEY The undersigned, an officer and/or director of ELECTRO SCIENTIFIC INDUSTRIES, INC. (the ?Company?), appoints PAUL OLDHAM and ARIC MCKINNIS his or her true and lawful attorney and agent to do any and all acts and things and execute in his or her name (whether on behalf of the Company or as an officer or director of the Company) any and all instruments which th

September 29, 2016 EX-24.1

POWER OF ATTORNEY

Exhibit EXHIBIT 24.1 POWER OF ATTORNEY The undersigned, an officer and/or director of ELECTRO SCIENTIFIC INDUSTRIES, INC. (the ?Company?), appoints PAUL OLDHAM and ARIC MCKINNIS his or her true and lawful attorney and agent to do any and all acts and things and execute in his or her name (whether on behalf of the Company or as an officer or director of the Company) any and all instruments which th

September 29, 2016 S-8

Electro Scientific Industries S-8

Document As filed with the Securities and Exchange Commission on September 28, 2016 Registration No.

September 29, 2016 S-8

Electro Scientific Industries S-8

S-8 1 forms8sep2016registration.htm S-8 As filed with the Securities and Exchange Commission on September 28, 2016 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) Oregon 93-0370304 (State or other j

September 2, 2016 EX-10.1

Retention Bonus Agreement, dated August 31, 2016, between Electro Scientific Industries, Inc. and Paul R Oldham. Incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed on September 2, 2016.

Exhibit Exhibit 10.1 ELECTRO SCIENTIFIC INDUSTRIES, INC. RETENTION BONUS AGREEMENT This Retention Bonus Agreement (this “ Agreement ”) is entered into as of August 31, 2016, by and between Electro Scientific Industries, Inc. (the “ Company ”) and Paul R Oldham (“ Employee ”). The Company and Employee are sometimes collectively referred to herein as the “ Parties ” and individually as a “ Party .”

September 2, 2016 8-K

Electro Scientific Industries 8-K (Current Report/Significant Event)

Document 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 31, 2016 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorpora

August 22, 2016 EX-10.1

2004 Stock Incentive Plan, as amended. Incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed on August 22, 2016.

EX-10.1 2 exhibit1012004stockincenti.htm EXHIBIT 10.1 2004 STOCK INCENTIVE PLAN ELECTRO SCIENTIFIC INDUSTRIES, INC. 2004 STOCK INCENTIVE PLAN (As amended January 25, 2005, April 20, 2005, October 25, 2007, May 12, 2011, December 21, 2012, August 21, 2014, August 18, 2015 and August 18, 2016) 1.Purpose. The purpose of this 2004 Stock Incentive Plan (the “Plan”) is to enable Electro Scientific Indus

August 22, 2016 8-K

Electro Scientific Industries 8-K ANNUAL MEETING 2016 (Current Report/Significant Event)

Document 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 18, 2016 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorpora

August 22, 2016 8-K

Electro Scientific Industries 8-K ANNUAL MEETING 2016 (Current Report/Significant Event)

Document 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 18, 2016 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorpora

August 22, 2016 EX-10.1

2004 Stock Incentive Plan, as amended. Incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed on August 22, 2016.

EX-10.1 2 exhibit1012004stockincenti.htm EXHIBIT 10.1 2004 STOCK INCENTIVE PLAN ELECTRO SCIENTIFIC INDUSTRIES, INC. 2004 STOCK INCENTIVE PLAN (As amended January 25, 2005, April 20, 2005, October 25, 2007, May 12, 2011, December 21, 2012, August 21, 2014, August 18, 2015 and August 18, 2016) 1.Purpose. The purpose of this 2004 Stock Incentive Plan (the “Plan”) is to enable Electro Scientific Indus

August 19, 2016 EX-10.1

Employment Agreement, dated August 19, 2016, between the Company and Michael Burger. Incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed on August 19, 2016.

Exhibit Employment Agreement This Employment Agreement (the " Agreement ") is made and entered into as of August 19, 2016, by and between Michael D.

August 19, 2016 EX-10.1

Employment Agreement, dated August 19, 2016, between the Company and Michael Burger. Incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed on August 19, 2016.

Exhibit Employment Agreement This Employment Agreement (the " Agreement ") is made and entered into as of August 19, 2016, by and between Michael D.

August 19, 2016 8-K

Electro Scientific Industries 8-K APPOINTMENT OF MICHAEL BURGER (Current Report/Significant Event)

Document 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 19, 2016 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorpora

August 19, 2016 8-K

Electro Scientific Industries 8-K APPOINTMENT OF MICHAEL BURGER (Current Report/Significant Event)

Document 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 19, 2016 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorpora

August 9, 2016 10-Q

Electro Scientific Industries 10-Q Q1 FY '17 (Quarterly Report)

Document Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

August 9, 2016 10-Q

Electro Scientific Industries 10-Q Q1 FY '17 (Quarterly Report)

Document Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

August 2, 2016 EX-99.1

ESI Announces First Quarter Fiscal 2017 Results

Exhibit Brian Smith vFINAL ESI 503-672-5760 [email protected] ESI Announces First Quarter Fiscal 2017 Results PORTLAND, Ore. ? August 2, 2016 ? Electro Scientific Industries, Inc. (NASDAQ:ESIO), an innovator of laser-based manufacturing solutions for the microtechnology industry, today announced results for its fiscal 2017 first quarter ended July 2, 2016 . Financial measures are provided on both a G

August 2, 2016 8-K

Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

Document 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 29, 2016 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporati

July 14, 2016 EX-10.1

First Amendment to Loan and Security Agreement, dated July 12, 2016, between the Company and Silicon Valley Bank. Incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed on July 14, 2016.

Exhibit First Amendment to Loan and security agreement This First Amendment to Loan and Security Agreement (this ? Amendment ?) is entered into this 12 th day of July, 2016 by and between SILICON VALLEY BANK , a California corporation with a loan production office located at 380 Interlocken Crescent, Suite 600, Broomfield, Colorado 80021 (? Bank ?) and ELECTRO SCIENTIFIC INDUSTRIES, INC.

July 14, 2016 8-K

Electro Scientific Industries 8-K SVB AMENDMENT 2016 (Current Report/Significant Event)

Document 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 12, 2016 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporati

July 14, 2016 DEF 14A

Electro Scientific Industries DEF 14A

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)

June 15, 2016 EX-24.6

POWER OF ATTORNEY (Annual Report on Form 10-K)

EXHIBIT 24.6 POWER OF ATTORNEY (Annual Report on Form 10-K) The undersigned, an officer and/or director of Electro Scientific Industries, Inc., constitutes and appoints Edward C. Grady and Paul Oldham, and each of them, his or her true and lawful attorney and agent to do any and all acts and things and execute in his or her name as an officer or director of the Company the Annual Report on Form 10

June 15, 2016 EX-10.23

Form of Stock Appreciation Rights Agreement (for awards made between May 2011 and April 2015). Incorporated by reference to Exhibit 10.23 of the Company’s Annual Report on Form 10-K for the fiscal year ended April 2, 2016 (2016 10-K).

EX-10.23 2 ex-1023may2011sosarform.htm EXHIBIT 10.23 SOSAR AWARDS BETWEEN MAY 2011 AND APRIL 2015 ELECTRO SCIENTIFIC INDUSTRIES, INC. STOCK APPRECIATION RIGHTS AGREEMENT This STOCK APPRECIATION RIGHTS AGREEMENT dated as of May 12, 2011, is between Electro Scientific Industries, Inc., an Oregon corporation (the “Company”), and (the “Recipient”), pursuant and subject to the Company’s 2004 Stock Ince

June 15, 2016 EX-21

ESI Subsidiaries As of April 2, 2016 Name State/Country of Incorporation Percentage of Voting Securities Owned ESI International Corp. Oregon 100% ESI China, Inc. Oregon 100% New Wave Research, Inc. California 100% ESI-Pyrophotonics Lasers, Inc. Cana

EXHIBIT 21 ESI Subsidiaries As of April 2, 2016 Name State/Country of Incorporation Percentage of Voting Securities Owned ESI International Corp.

June 15, 2016 EX-10.24

Form of Stock Appreciation Rights Agreement (for awards made after April 2015). Incorporated by reference to Exhibit 10.24 of the 2016 10-K.

ELECTRO SCIENTIFIC INDUSTRIES, INC. STOCK APPRECIATION RIGHTS AGREEMENT This STOCK APPRECIATION RIGHTS AGREEMENT dated as of May 14, 2015, is between Electro Scientific Industries, Inc., an Oregon corporation (the “Company”), and (the “Recipient”), pursuant and subject to the Company’s 2004 Stock Incentive Plan (the “Plan”). The Company and the Recipient agree as follows: 1.SAR Grant. The Company

June 15, 2016 EX-24.2

POWER OF ATTORNEY (Annual Report on Form 10-K)

EXHIBIT 24.2 POWER OF ATTORNEY (Annual Report on Form 10-K) The undersigned, an officer and/or director of Electro Scientific Industries, Inc., constitutes and appoints Edward C. Grady and Paul Oldham, and each of them, his or her true and lawful attorney and agent to do any and all acts and things and execute in his or her name as an officer or director of the Company the Annual Report on Form 10

June 15, 2016 EX-24.3

POWER OF ATTORNEY (Annual Report on Form 10-K)

EXHIBIT 24.3 POWER OF ATTORNEY (Annual Report on Form 10-K) The undersigned, an officer and/or director of Electro Scientific Industries, Inc., constitutes and appoints Edward C. Grady and Paul Oldham, and each of them, his or her true and lawful attorney and agent to do any and all acts and things and execute in his or her name as an officer or director of the Company the Annual Report on Form 10

June 15, 2016 EX-24.4

POWER OF ATTORNEY (Annual Report on Form 10-K)

EXHIBIT 24.4 POWER OF ATTORNEY (Annual Report on Form 10-K) The undersigned, an officer and/or director of Electro Scientific Industries, Inc., constitutes and appoints Edward C. Grady and Paul Oldham, and each of them, his or her true and lawful attorney and agent to do any and all acts and things and execute in his or her name as an officer or director of the Company the Annual Report on Form 10

June 15, 2016 EX-24.5

POWER OF ATTORNEY (Annual Report on Form 10-K)

EXHIBIT 24.5 POWER OF ATTORNEY (Annual Report on Form 10-K) The undersigned, an officer and/or director of Electro Scientific Industries, Inc., constitutes and appoints Edward C. Grady and Paul Oldham, and each of them, his or her true and lawful attorney and agent to do any and all acts and things and execute in his or her name as an officer or director of the Company the Annual Report on Form 10

June 15, 2016 EX-24.1

POWER OF ATTORNEY (Annual Report on Form 10-K)

EXHIBIT 24.1 POWER OF ATTORNEY (Annual Report on Form 10-K) The undersigned, an officer and/or director of Electro Scientific Industries, Inc., constitutes and appoints Edward C. Grady and Paul Oldham, and each of them, his or her true and lawful attorney and agent to do any and all acts and things and execute in his or her name as an officer or director of the Company the Annual Report on Form 10

June 15, 2016 EX-24.7

POWER OF ATTORNEY (Annual Report on Form 10-K)

EXHIBIT 24.7 POWER OF ATTORNEY (Annual Report on Form 10-K) The undersigned, an officer and/or director of Electro Scientific Industries, Inc., constitutes and appoints Edward C. Grady and Paul Oldham, and each of them, his or her true and lawful attorney and agent to do any and all acts and things and execute in his or her name as an officer or director of the Company the Annual Report on Form 10

June 14, 2016 10-K

Electro Scientific Industries 10-K FY2016 (Annual Report)

10-K 1 esi10-k04022016.htm 10-K FY2016 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ý ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended April 2, 2016 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 0-12853 ELECTRO

May 31, 2016 SD

Electro Scientific Industries SD CY 2015

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 13900 NW Science Park Drive, Portland, Oregon 97229 (Address of pri

May 31, 2016 EX-1.01

Electro Scientific Industries Inc. Conflict Minerals Report For The Year Ended December 31, 2015

Exhibit Exhibit 1.01 Electro Scientific Industries Inc. Conflict Minerals Report For The Year Ended December 31, 2015 This report for the year ended December 31, 2015 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934. Our due diligence measures have been designed to conform, in all material respects, with the framework in the Organization for Economic Co-operation an

May 23, 2016 8-K

Electro Scientific Industries 8-K FY'16 PRSUS NEO'S (Current Report/Significant Event)

SEC Document 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 17, 2016 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorpor

May 16, 2016 8-K

Electro Scientific Industries 8-K ED 2016 TRSU GRANTS (Current Report/Significant Event)

SEC Document 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 12, 2016 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorpor

May 10, 2016 EX-99.1

ESI Announces Fourth Quarter Fiscal 2016 Results

SEC Exhibit Brian Smith ESI 503-672-5760 [email protected] ESI Announces Fourth Quarter Fiscal 2016 Results PORTLAND, Ore. ? May 10, 2016 ? Electro Scientific Industries, Inc. (NASDAQ:ESIO), an innovator of laser-based manufacturing solutions for the microtechnology industry, today announced results for its fiscal 2016 fourth quarter and year ended April 2, 2016 . The fourth quarter comprised thirtee

May 10, 2016 8-K

Electro Scientific Industries 8-K Q4 FY'16 RELEASE (Current Report/Significant Event)

SEC Document 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 10, 2016 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorpor

April 21, 2016 SC 13D/A

ESIO / Electro Scientific Industries, Inc. / VIEX Capital Advisors, LLC - AMENDMENT NO. 4 TO THE SCHEDULE 13D Activist Investment

SC 13D/A 1 sc13da41011401104212016.htm AMENDMENT NO. 4 TO THE SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 4)1 Electro Scientific Industries, Inc. (Name of Issuer) Common Stock, without p

March 4, 2016 SC 13D/A

ESIO / Electro Scientific Industries, Inc. / VIEX Capital Advisors, LLC - AMENDMENT NO. 3 TO THE SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 3)1 Electro Scientific Industries, Inc. (Name of Issuer) Common Stock, without par value (Title of Class of Securities) 285229100 (CUSIP Number) ERIC SINGE

February 26, 2016 SC 13D/A

ESIO / Electro Scientific Industries, Inc. / VIEX Capital Advisors, LLC - AMENDMENT NO. 2 TO THE SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 2)1 Electro Scientific Industries, Inc. (Name of Issuer) Common Stock, without par value (Title of Class of Securities) 285229100 (CUSIP Number) ERIC SINGE

February 24, 2016 8-K

Current Report

8-K 1 a8-knierenbergresignation.htm 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 22, 2016 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State o

February 24, 2016 EX-99

ESI ANNOUNCES RESIGNATION OF DAVID NIERENBERG FROM ITS BOARD OF DIRECTORS

Exhibit Brian Smith ESI 503-672-5760 [email protected] ESI ANNOUNCES RESIGNATION OF DAVID NIERENBERG FROM ITS BOARD OF DIRECTORS PORTLAND, Ore. - February 24, 2016 - Electro Scientific Industries, Inc. (Nasdaq: ESIO), an innovator in laser-based manufacturing solutions for the micro-machining industry, today announced that David Nierenberg has tendered his resignation as a member of the Board of Dire

February 24, 2016 SC 13D/A

ESIO / Electro Scientific Industries, Inc. / Nierenberg Investment Management Company, Inc. - FEBRUARY 24, 2016 Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 17) ELECTRO SCIENTIFIC INDUSTRIES INC. (ESIO) (Name of Issuer) Common Stock (Title of Class of Securities) 285229100 (CUSIP Number) David Nierenberg The D3 Family Funds 19605 NE 8th Street Camas, WA 98607 (360) 604-8600 With a copy to: Christopher P. Davis K

February 22, 2016 8-K

Electro Scientific Industries 8-K (Current Report/Significant Event)

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, 2016 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporatio

February 9, 2016 10-Q

ESIO / Electro Scientific Industries, Inc. 10-Q - Quarterly Report - 10-Q Q3 FY'16

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended January 2, 2016 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:

February 9, 2016 SC 13G/A

ESIO / Electro Scientific Industries, Inc. / PRICE T ROWE ASSOCIATES INC /MD/ - ESIO AS OF 12/31/2015 Passive Investment

SC 13G/A 1 esio13gadec15.htm ESIO AS OF 12/31/2015 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4) ELECTRO SCIENTIFIC INC (Name of Issuer) COMMON STOCK (Title of Class of Securities) 285229100 (CUSIP Number) December 31, 2015 (Date of Event which Requires Filing of Statement) Check the appropriate box

February 9, 2016 SC 13G/A

Electro Scientific Industries SCHEDULE 13G/A (Passive Acquisition of More Than 5% of Shares)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 8)* ELECTRO SCIENTIFIC INDS INC (Name of Issuer) Common Stock (Title of Class of Securities) 285229100 (CUSIP Number) December 31, 2015 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

February 2, 2016 EX-99.1

ESI Announces Third Quarter Fiscal 2016 Results

Exhibit Brian Smith ESI 503-672-5760 [email protected] ESI Announces Third Quarter Fiscal 2016 Results PORTLAND, Ore. ? February 2, 2016 ? Electro Scientific Industries, Inc. (NASDAQ:ESIO), an innovator of laser-based manufacturing solutions for the microtechnology industry, today announced results for its fiscal 2016 third quarter ended January 2, 2016 , which comprised fourteen weeks, compared to t

February 2, 2016 8-K

Electro Scientific Industries Q3 FY16 RESULTS (Current Report/Significant Event)

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 2, 2016 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation

December 23, 2015 8-K

Current Report

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 18, 2015 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation) (

November 10, 2015 8-K

Electro Scientific Industries 8-K (Current Report/Significant Event)

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 9, 2015 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation

November 10, 2015 EX-10

SEPARATION AND RELEASE AGREEMENT

Exhibit SEPARATION AND RELEASE AGREEMENT This Agreement is entered into by and between Electro Scientific Industries, Inc.

October 28, 2015 8-K

Electro Scientific Industries 8-K (Current Report/Significant Event)

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 28, 2015 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation

October 28, 2015 EX-99.1

ESI Announces Fiscal Second Quarter 2016 Results

EX-99.1 2 exhibit991pr09262015.htm EXHIBIT 99.1 Brian Smith ESI 503-672-5760 [email protected] ESI Announces Fiscal Second Quarter 2016 Results PORTLAND, Ore. – October 28, 2015 – Electro Scientific Industries, Inc. (NASDAQ:ESIO), an innovator in laser-based manufacturing solutions for the microtechnology industry, today announced results for its fiscal 2016 second quarter ended September 26, 2015. F

September 2, 2015 EX-16.1

KPMG LLP

Exhibit KPMG LLP Suite 3800 1300 South West Fifth Avenue Portland, OR 97201 September 1, 2015 Securities and Exchange Commission Washington D.

September 2, 2015 8-K

Electro Scientific Industries 8-K (Current Report/Significant Event)

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 27, 2015 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation)

August 20, 2015 8-K

Electro Scientific Industries 8-K (Current Report/Significant Event)

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 18, 2015 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation)

August 20, 2015 EX-10.1

ELECTRO SCIENTIFIC INDUSTRIES, INC. 2004 STOCK INCENTIVE PLAN (As amended January 25, 2005, April 20, 2005, October 25, 2007, May 12, 2011, December 21, 2012, August 21, 2014 and August 18, 2015)

EX-10.1 2 exhibit1012004stockincenti.htm EXHIBIT 10.1 2004 STOCK INCENTIVE PLAN ELECTRO SCIENTIFIC INDUSTRIES, INC. 2004 STOCK INCENTIVE PLAN (As amended January 25, 2005, April 20, 2005, October 25, 2007, May 12, 2011, December 21, 2012, August 21, 2014 and August 18, 2015) 1.Purpose. The purpose of this 2004 Stock Incentive Plan (the “Plan”) is to enable Electro Scientific Industries, Inc. (the

July 29, 2015 EX-99.1

ESI Announces First Quarter Fiscal 2016 Results

Brian Smith ESI 503-672-5760 [email protected] ESI Announces First Quarter Fiscal 2016 Results PORTLAND, Ore. – July 29, 2015 – Electro Scientific Industries, Inc. (NASDAQ:ESIO), an innovator of laser-based manufacturing solutions for the microtechnology industry, today announced results for its fiscal 2016 first quarter ended June 27, 2015 . Financial measures are provided on both a GAAP and non-GAA

July 29, 2015 8-K

Electro Scientific Industries 8-K (Current Report/Significant Event)

Form 8K 06.27.2015 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 29, 2015 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of i

July 24, 2015 SC 13D/A

ESIO / Electro Scientific Industries, Inc. / VIEX Capital Advisors, LLC - AMENDMENT NO. 1 TO THE SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 1)1 Electro Scientific Industries, Inc. (Name of Issuer) Common Stock, without par value (Title of Class of Securities) 285229100 (CUSIP Number) ERIC SINGE

July 10, 2015 DEF 14A

Electro Scientific Industries DEF 14A PROXY STATEMENT

FY15 Proxy UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(

June 29, 2015 8-K

Electro Scientific Industries 8-K (Current Report/Significant Event)

8-K Change in NL 06292015 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

June 25, 2015 SC 13D

ESIO / Electro Scientific Industries, Inc. / VIEX Capital Advisors, LLC - THE SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. )1 Electro Scientific Industries, Inc. (Name of Issuer) Common Stock, without par value (Title of Class of Securities) 285229100 (CUSIP Number) ERIC SINGER

June 25, 2015 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 2 ex991to13d10114elc06182015.htm JOINT FILING AGREEMENT Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including additional amendments thereto) with respect to the shares of Common Stock, without par

June 12, 2015 EX-99

ESI Announces Board Retirements and New Director Nominations

Item 9.01 - Exhibit Exhibit 99.1 Brian Smith ESI 503-672-5760 [email protected] ESI Announces Board Retirements and New Director Nominations PORTLAND, Ore., June 12, 2015 - Electro Scientific Industries, Inc. (NASDAQ:ESIO), an innovator in laser-based manufacturing solutions for the micro-machining industry, today announced that Richard Faubert and Barry Harmon will retire from the Board of Directors

June 12, 2015 8-K

Electro Scientific Industries 8-K (Current Report/Significant Event)

8-K Governance 06112015 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

June 11, 2015 NT 10-K

Electro Scientific Industries NT 10-K

From 12b-25 Extension of Filing UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

June 2, 2015 EX-10.1

Electro Scientific Industries Inc. Conflict Minerals Report For The Year Ended December 31, 2014

Exhibit 10.1 Conflict Minerals Report Exhibit 1.01 Electro Scientific Industries Inc. Conflict Minerals Report For The Year Ended December 31, 2014 This report for the year ended December 31, 2014 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934. Our due diligence measures have been designed to conform, in all material respects, with the framework in the Organizatio

June 2, 2015 SD

Electro Scientific Industries SD

Form SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 13900 NW Science Park Drive, Portland, Oregon 97229 (Addres

May 18, 2015 8-K

Current Report

8-K Change in Control Agreements UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 18, 2015 EX-10.1

Form of Amended and Restated Change in Control Agreement between the Company and each of Robert DeBakker, Paul Oldham and Bing Fai Wong. Incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed May 18, 2015.

Exhibit 10.1 Amend in Control Agreement ELECTRO SCIENTIFIC INDUSTRIES, INC. AMENDED AND RESTATED CHANGE IN CONTROL AGREEMENT This Amended and Restated Change in Control Agreement (the ? Agreement ?) is made and entered into by and between (? Executive ?) and Electro Scientific Industries, Inc., an Oregon corporation (the ? Company ?), effective as of [], 2015 (the ? Effective Date ?) and amends an

May 12, 2015 8-K

Electro Scientific Industries 8-K (Current Report/Significant Event)

Form 8K 3.28.2015 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 12, 2015 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of inc

May 12, 2015 EX-99.1

ESI Announces Fourth Quarter Fiscal 2015 Results

EX-99.1 2 exhibit9913282015.htm EXHIBIT 99.1 Brian Smith ESI 503-672-5760 [email protected] ESI Announces Fourth Quarter Fiscal 2015 Results PORTLAND, Ore. – May 12, 2015 – Electro Scientific Industries, Inc. (NASDAQ:ESIO), an innovator of laser-based manufacturing solutions for the microtechnology industry, today announced results for its fiscal 2015 fourth quarter ended March 28, 2015. Financial me

March 26, 2015 EX-4.2

ELECTRO SCIENTIFIC INDUSTRIES, INC. COMPUTERSHARE INC., as Successor-in-Interest to MELLON INVESTOR SERVICES LLC, as Rights Agent AMENDMENT NO. 1 RIGHTS AGREEMENT Effective as of March 25, 2015

EX-4.2 3 exhibit42.htm EXHIBIT 4.2 ELECTRO SCIENTIFIC INDUSTRIES, INC. and COMPUTERSHARE INC., as Successor-in-Interest to MELLON INVESTOR SERVICES LLC, as Rights Agent AMENDMENT NO. 1 TO RIGHTS AGREEMENT Effective as of March 25, 2015 This Amendment No. 1 to the Rights Agreement is dated as of March 25, 2015 (the “Amendment”) between Electro Scientific Industries, Inc., an Oregon corporation (the

March 26, 2015 8-A12G/A

Electro Scientific Industries 8-A12G/A

Form 8-A/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A/A (Amendment No. 1) FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 93-0370304 (State or other jurisdiction of incorporation) (IRS Emp

March 26, 2015 EX-3.1

2009 Amended and Restated Bylaws, as amended. Incorporated by reference to Exhibit 3.1 of the Company’s Current Report on Form 8-K filed on March 26, 2015

EX-3.1 2 exhibit31.htm EXHIBIT 3.1 2009 AMENDED AND RESTATED BYLAWS OF ELECTRO SCIENTIFIC INDUSTRIES, INC. ARTICLE I SHAREHOLDERS MEETINGS 1.1 Annual Meeting. The annual meeting of the shareholders shall be held on the second Thursday in August of each year at 1:00 p.m., unless a different date or time is fixed by the Board of Directors and stated in the notice of the meeting. 1.2 Special Meetings

March 26, 2015 8-K

Electro Scientific Industries 8-K (Current Report/Significant Event)

8-K Shareholders Rights UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 23, 2015 EX-10.1

Loan and Security Agreement, dated March 20, 2015, between the Company and Silicon Valley Bank. Incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-k filed on March 23, 2015.

Exhibit 10.1 Loan Agreement LOAN AND SECURITY AGREEMENT THIS LOAN AND SECURITY AGREEMENT (this ? Agreement ?) dated as of 20th March, 2015 (the ? Effective Date ?) between SILICON VALLEY BANK , a California corporation with a loan production office located at 8705 SW Nimbus Avenue, Suite 240, Beaverton, Oregon 97008 (? Bank ?), and ELECTRO SCIENTIFIC INDUSTRIES, INC. , an Oregon corporation (? Bor

March 23, 2015 8-K

Electro Scientific Industries 8-K SVB LINE OF CREDIT (Current Report/Significant Event)

8-K SVB Line of Credit UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 16, 2015 EX-99.1

ESI Consolidates Facilities to Streamline Operations

EX-99.1 2 exhibit991pr03162015.htm EXHIBIT 99.1 Brian Smith ESI 503-672-5760 [email protected] ESI Consolidates Facilities to Streamline Operations PORTLAND, Ore. - March 16, 2015 - Electro Scientific Industries, Inc. (Nasdaq: ESIO), an innovator in laser-based manufacturing solutions for the microtechnology industry, today announced a corporate restructuring that will streamline its manufacturing an

March 16, 2015 8-K

Electro Scientific Industries 8-K (Current Report/Significant Event)

8-K Chelmsford 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, 2015 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of inco

March 12, 2015 8-K

Electro Scientific Industries 8-K (Current Report/Significant Event)

8-K OmniGuide 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, 2015 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorp

February 23, 2015 8-K

Financial Statements and Exhibits, Other Events

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 22, 2015 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation) (

February 23, 2015 EX-99.1

ESI Board of Directors Suspends Dividend to Concentrate Resources on Growth

Brian Smith ESI 503-672-5760 [email protected] ESI Board of Directors Suspends Dividend to Concentrate Resources on Growth PORTLAND, Ore. - February 23, 2015 - Electro Scientific Industries, Inc. (Nasdaq: ESIO), an innovator in laser-based manufacturing solutions for the microtechnology industry, today announced that its Board of Directors has suspended its quarterly dividend. “We are in the middle o

February 23, 2015 8-K

Other Events

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 22, 2015 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation) (

February 11, 2015 SC 13G/A

ESIO / Electro Scientific Industries, Inc. / VANGUARD GROUP INC Passive Investment

electroscientificindustries.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 3 )* Name of issuer: Electro Scientific Industries Inc Title of Class of Securities: Common Stock CUSIP Number: 285229100 Date of Event Which Requires Filing of this Statement: December 31, 2014

February 10, 2015 SC 13G/A

ESIO / Electro Scientific Industries, Inc. / PRICE T ROWE ASSOCIATES INC /MD/ - ESIO AS OF 12/31/2014 Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3) ELECTRO SCIENTIFIC INC (Name of Issuer) COMMON STOCK (Title of Class of Securities) 285229100 (CUSIP Number) December 31, 2014 (Date of Event which Requires Filing of Statement) Check the appropriate box to designate the Rule pursuant to which this Schedu

February 5, 2015 SC 13G/A

ESIO / Electro Scientific Industries, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 7)* ELECTRO SCIENTIFIC INDS INC (Name of Issuer) Common Stock (Title of Class of Securities) 285229100 (CUSIP Number) December 31, 2014 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

January 30, 2015 SC 13D/A

ESIO / Electro Scientific Industries, Inc. / Nierenberg Investment Management Company, Inc. - JANUARY 30, 2015 Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 16) ELECTRO SCIENTIFIC INDUSTRIES INC. (ESIO) (Name of Issuer) Common Stock (Title of Class of Securities) 285229100 (CUSIP Number) David Nierenberg The D3 Family Funds 19605 NE 8th Street Camas, WA 98607 (360) 604-8600 With a copy to: Christopher P. Davis K

January 28, 2015 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): January 28, 2015 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation) (C

January 28, 2015 EX-99.1

ESI Announces Third Quarter Fiscal 2015 Results

Brian Smith ESI 503-672-5760 [email protected] ESI Announces Third Quarter Fiscal 2015 Results PORTLAND, Ore. – January 28, 2015 – Electro Scientific Industries, Inc. (NASDAQ:ESIO), an innovator of laser-based manufacturing solutions for the microtechnology industry, today announced results for its fiscal 2015 third quarter ended December 27, 2014. Financial measures are provided on both a GAAP and n

November 20, 2014 8-K

Current Report

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, 2014 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation) (

November 13, 2014 EX-99.1

ESI Announces Definitive Agreement to Acquire Topwin Optoelectronics

EX-99.1 2 exhibit991releasetopwin.htm EXHIBIT Brian Smith ESI 503-672-5760 [email protected] ESI Announces Definitive Agreement to Acquire Topwin Optoelectronics PORTLAND, Ore. - November 13, 2014 - Electro Scientific Industries, Inc. (Nasdaq: ESIO), the premier source for innovative laser-based manufacturing solutions for the microtechnology industry, today announced that it has entered into a defin

November 13, 2014 8-K

Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Other Events

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, 2014 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation) (

October 30, 2014 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): October 30, 2014 ELECTRO SCIENTIFIC INDUSTRIES, INC. (Exact name of registrant as specified in its charter) OREGON 0-12853 93-0370304 (State or other jurisdiction of incorporation) (C

October 30, 2014 EX-99.1

ESI Announces Second Quarter Fiscal 2015 Results

Brian Smith ESI 503-672-5760 [email protected] ESI Announces Second Quarter Fiscal 2015 Results PORTLAND, Ore. – October 30, 2014 – Electro Scientific Industries, Inc. (NASDAQ:ESIO), the premier source for innovative laser-based manufacturing solutions for the microtechnology industry, today announced results for its fiscal 2015 second quarter ended September 27, 2014. Financial measures are provided

October 6, 2014 EX-24.1

POWER OF ATTORNEY

POWER OF ATTORNEY The undersigned, an officer and/or director of ELECTRO SCIENTIFIC INDUSTRIES, INC.

October 6, 2014 EX-24.1

POWER OF ATTORNEY

POWER OF ATTORNEY The undersigned, an officer and/or director of ELECTRO SCIENTIFIC INDUSTRIES, INC.

October 6, 2014 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS - - S-8 POS

As filed with the Securities and Exchange Commission on October 3, 2014 Registration No.

October 6, 2014 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS - - S-8 POS

As filed with the Securities and Exchange Commission on October 3, 2014 Registration No.

October 6, 2014 EX-24.1

POWER OF ATTORNEY

POWER OF ATTORNEY The undersigned, an officer and/or director of ELECTRO SCIENTIFIC INDUSTRIES, INC.

October 6, 2014 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS - - S-8 POS

As filed with the Securities and Exchange Commission on October 3, 2014 Registration No.

October 3, 2014 EX-24.1

POWER OF ATTORNEY

POWER OF ATTORNEY The undersigned, an officer and/or director of ELECTRO SCIENTIFIC INDUSTRIES, INC.

October 3, 2014 S-8

ESIO / Electro Scientific Industries, Inc. S-8 - - S-8

As filed with the Securities and Exchange Commission on October 3, 2014 Registration No.

October 3, 2014 EX-24.1

ESIO / Electro Scientific Industries, Inc. EX-24.1 - - EXHIBIT 24.1

POWER OF ATTORNEY The undersigned, an officer and/or director of ELECTRO SCIENTIFIC INDUSTRIES, INC.

October 3, 2014 S-8 POS

ESIO / Electro Scientific Industries, Inc. S-8 POS - - S-8 POS

As filed with the Securities and Exchange Commission on October 3, 2014 Registration No.

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