GVMXX / State Street Institutional Investment Trust - State Street Institutional US Govt Money Market Fnd Premier Cls - SEC-arkivering, Årsberetning, Fuldmagtserklæring

State Street Institutional Investment Trust - State Street Institutional US Govt Money Market Fnd Premier Cls
US ˙ MUTF ˙ US8574927062

Grundlæggende statistik
LEI 549300P1E098W6ES7M39
CIK 1107414
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 State Street Institutional Investment Trust - State Street Institutional US Govt Money Market Fnd Premier Cls
SEC Filings (Chronological Order)
Denne side giver en komplet, kronologisk liste over SEC-arkiveringer, eksklusive ejerskabsregistreringer, som vi leverer andre steder.
May 6, 2025 CORRESP

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STATE STREET INSTITUTIONAL INVESTMENT TRUST ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.

April 1, 2025 EX-99.(11)

-2-

Opinion and Consent of Ropes & Gray LLP ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.

April 1, 2025 EX-99.(14)

Consent of Independent Registered Public Accounting Firm

Consent of Ernst & Young LLP Consent of Independent Registered Public Accounting Firm We consent to the references to our firm under the captions “Table B-3.

April 1, 2025 N-14

As filed with the Securities and Exchange Commission On April 1, 2025

Table of Contents As filed with the Securities and Exchange Commission On April 1, 2025 Securities Act Registration No.

April 1, 2025 EX-99.(16)

STATE STREET INSTITUTIONAL INVESTMENT TRUST POWER OF ATTORNEY

STATE STREET INSTITUTIONAL INVESTMENT TRUST POWER OF ATTORNEY Each of the undersigned Trustees and officers of State Street Institutional Investment Trust (the “Trust”) hereby constitutes and appoints David Barr, Esq.

January 27, 2025 40-17F2

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2]

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 April 30, 2024 2. State Identification Number:     AL AK AZ AR CA CO CT DE DC FL GA HI ID I

January 24, 2025 40-17F2

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2]

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 March 31, 2024 2. State Identification Number:     AL AK AZ AR CA CO CT DE DC FL GA HI ID I

January 23, 2025 40-17F2

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2]

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 February 29, 2024 2. State Identification Number:     AL AK AZ AR CA CO CT DE DC FL GA HI I

November 13, 2024 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

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

October 16, 2024 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

SSGA - 12 Co-Registrants Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

September 25, 2024 40-17F2

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2]

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 June 30, 2023 2. State Identification Number:     AL AK AZ AR CA CO CT DE DC FL GA HI ID IL

September 19, 2024 40-17F2

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2]

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 May 31, 2023 2. State Identification Number:     AL AK AZ AR CA CO CT DE DC FL GA HI ID IL

August 5, 2024 40-17F2

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2]

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 April 28, 2023 2. State Identification Number:     AL AK AZ AR CA CO CT DE DC FL GA HI ID I

August 2, 2024 CORRESP

1

  ROPES & GRAY LLP PRUDENTIAL TOWER Adam M. Schlichtmann 800 BOYLSTON STREET 617-951-7114 BOSTON, MA 02199-3600 617-235-7346 fax WWW.ROPESGRAY.COM [email protected] August 2, 2024 VIA EDGAR CORRESPONDENCE Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Trust (the “Trust”) (SEC Fil

February 20, 2024 40-17F2

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2]

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 August 31, 2022 2. State Identification Number:     AL AK AZ AR CA CO CT DE DC FL GA HI ID

February 6, 2024 40-17F2

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2]

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 April 30, 2022 2. State Identification Number:     AL AK AZ AR CA CO CT DE DC FL GA HI ID I

January 30, 2024 40-17F2

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2]

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 March 31, 2022 2. State Identification Number: AL AK AZ AR CA CO CT DE DC FL GA HI ID IL IN

October 20, 2023 CORRESP

-8- Appendix A

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM Adam M. Schlichtmann 617-951-7114 617-235-7346 fax [email protected] October 20, 2023 VIA EDGAR CORRESPONDENCE Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Trust (the “Trust”) (SEC Fil

July 7, 2023 40-17F2

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2]

STATE STREET INSTITUTIONAL INVESTMENT TRUST U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 July 31, 2021 2. State Identification Number: A

June 22, 2023 40-17F2

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2]

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 February 26, 2021 2. State Identification Number: AL AK AZ AR CA CO CT DE DC FL GA HI ID IL

June 22, 2023 40-17F2

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2]

STATE STREET INSTITUTIONAL INVESTMENT TRUST U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 January 29, 2021 2. State Identification Number

March 29, 2023 EX-99.(O)(5)

Power of Attorney dated March 10, 2023 as it relates to the SSGA Funds, State Street Master Funds, the Trust, State Street Institutional Funds, State Street Variable Insurance Series Funds, Inc. State Street Navigator Securities Lending Trust, Elfun Government Money Market Fund, Elfun Tax-Exempt Income Fund, Elfun Income Fund, Elfun Diversified Fund, Elfun International Equity Fund and Elfun Trusts is filed herewith.

Power of Attorney dated March 10, 2023 SSGA FUNDS STATE STREET MASTER FUNDS STATE STREET INSTITUTIONAL INVESTMENT TRUST STATE STREET NAVIGATOR SECURITIES LENDING TRUST STATE STREET INSTITUTIONAL FUNDS STATE STREET VARIABLE INSURANCE SERIES FUNDS, INC.

March 29, 2023 POS EX

As filed with the U.S. Securities and Exchange Commission on March 29, 2023

STATE STREET INSTITUTIONAL INVESTMENT TRUST As filed with the U.S. Securities and Exchange Commission on March 29, 2023 1933 Act File No. 333-30810 1940 Act File No. 811-09819 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-1A REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ☒ Post-Effective Amendment No. 296 ☒ and/or REGISTRATION STATEMENT UNDER THE INVESTMEN

March 29, 2023 EX-99.(J)(2)

Consent of BBD, LLP is filed herewith.

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the references to our firm in the Registration Statement on Form N-1A of State Street Institutional Investment Trust and to the use of our report dated November 24, 2021 on the financial statements and financial highlights of State Street Income Fund and State Street U.

March 9, 2023 40-17F2

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2]

STATE STREET INSTITUTIONAL INVESTMENT TRUST U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 August 31, 2021 2. State Identification Number:

March 9, 2023 40-17F2

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2]

STATE STREET INSTITUTIONAL INVESTMENT TRUST U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 September 30, 2021 2. State Identification Numb

March 9, 2023 40-17F2

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2]

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 May 31, 2021 2. State Identification Number: AL AK AZ AR CA CO CT DE DC FL GA HI ID IL IN I

February 28, 2023 NPORT-EX

State Street Institutional Investment Trust Quarterly Report December 31, 2022 Table of Contents

NPORT-EX 2 NPORTZQ36360321081222.htm Quarterly Report December 31, 2022 State Street Institutional Investment Trust State Street Institutional Investment Trust Quarterly Report December 31, 2022 Table of Contents Page Schedules of Investments (Unaudited) State Street Income Fund 1 State Street U.S. Core Equity Fund 19 Notes to Schedules of Investments (Unaudited) 22 Table of Contents State Street

February 28, 2023 NPORT-EX

1

Quarterly Report December 31, 2022 State Street Institutional Investment Trust State Street Diversified Income Fund The information contained in this report is intended for the general information of shareholders of the Trust.

February 28, 2023 NPORT-EX

State Street Institutional Investment Trust Quarterly Report December 31, 2022 Table of Contents

Quarterly Report December 31, 2022 State Street Institutional Investment Trust State Street Institutional Investment Trust Quarterly Report December 31, 2022 Table of Contents Page Schedules of Investments (Unaudited) State Street Income Fund 1 State Street U.

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

NPORT-EX 2 NPORTK1E3239599230922.htm Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio State S

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

NPORT-EX 3 NPORTK1Z1262123600922.htm Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio State S

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

NPORT-EX 3 NPORTK1D8352680610922.htm Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio State S

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

NPORT-EX 2 NPORTK1F0324755750922.htm Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio State S

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

NPORT-EX 2 NPORTK1E2130233060922.htm Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio State S

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

NPORT-EX 3 NPORTK1C6765124280922.htm Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio State S

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 28, 2022 NPORT-EX

Description % of Net Assets Banks 13.2% Pharmaceuticals 5.9 Oil & Gas 5.0 Insurance 4.4 Semiconductors 4.3 TOTAL 32.8%

Quarterly Report September 30, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

August 26, 2022 NPORT-EX

State Street Institutional Investment Trust Quarterly Report June 30, 2022 Table of Contents

Quarterly Report June 30, 2022 State Street Institutional Investment Trust State Street Institutional Investment Trust Quarterly Report June 30, 2022 Table of Contents Page Schedules of Investments (Unaudited) State Street Income Fund 1 State Street U.

August 26, 2022 NPORT-EX

1

Quarterly Report June 30, 2022 State Street Institutional Investment Trust State Street Diversified Income Fund The information contained in this report is intended for the general information of shareholders of the Trust.

August 26, 2022 NPORT-EX

State Street Institutional Investment Trust Quarterly Report June 30, 2022 Table of Contents

Quarterly Report June 30, 2022 State Street Institutional Investment Trust State Street Institutional Investment Trust Quarterly Report June 30, 2022 Table of Contents Page Schedules of Investments (Unaudited) State Street Income Fund 1 State Street U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 27, 2022 NPORT-EX

Description % of Net Assets Banks 12.6% Pharmaceuticals 5.5 Semiconductors 5.3 Oil & Gas 4.2 Insurance 4.2 TOTAL 31.8%

Quarterly Report March 31, 2022 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

February 25, 2022 NPORT-EX

State Street Institutional Investment Trust Quarterly Report December 31, 2021 Table of Contents

Quarterly Report December 31, 2021 State Street Institutional Investment Trust State Street Institutional Investment Trust Quarterly Report December 31, 2021 Table of Contents Page Schedules of Investments (Unaudited) State Street Income Fund 1 State Street U.

February 25, 2022 NPORT-EX

State Street Institutional Investment Trust Quarterly Report December 31, 2021 Table of Contents

Quarterly Report December 31, 2021 State Street Institutional Investment Trust State Street Institutional Investment Trust Quarterly Report December 31, 2021 Table of Contents Page Schedules of Investments (Unaudited) State Street Income Fund 1 State Street U.

February 25, 2022 NPORT-EX

1

Quarterly Report December 31, 2021 State Street Institutional Investment Trust State Street Diversified Income Fund The information contained in this report is intended for the general information of shareholders of the Trust.

January 31, 2022 40-17F2/A

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2]

40-17F2/A 1 d301587d4017f2a.htm STATE STREET INSTITUTIONAL INVESTMENT TRUST U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 September 30, 2

January 14, 2022 40-17F2

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2]

40-17F2 1 d226836d4017f2.htm STATE STREET INSTITUTIONAL INVESTMENT TRUST U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 September 30, 2020

December 16, 2021 CORRESP

-2- 1 year 3 years $72 $306

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM Adam M. Schlichtmann 617-951-7114 617-235-7346 fax [email protected] December 16, 2021 VIA EDGAR CORRESPONDENCE Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Trust (the “Trust”) (SEC Fi

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

November 26, 2021 NPORT-EX

Description % of Net Assets Banks 9.8% Semiconductors 5.3 Pharmaceuticals 5.2 Internet 4.5 Insurance 3.7 TOTAL 28.5%

Quarterly Report September 30, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

October 21, 2021 CORRESP

* * *

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM Adam M. Schlichtmann 617-951-7114 617-235-7346 fax [email protected] October 21, 2021 VIA EDGAR CORRESPONDENCE Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Trust (the ?Trust?) (SEC Fil

October 8, 2021 COVER

ROPES & GRAY LLP

SEC Transmittal Letter ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.

October 8, 2021 CORRESP

* * *

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM Adam M. Schlichtmann 617-951-7114 617-235-7346 fax [email protected] October 8, 2021 VIA EDGAR CORRESPONDENCE Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Trust (the ?Trust?) (SEC File

September 20, 2021 EX-99.(12)(A)

Consent of Ropes & Gray LLP as to filing of tax opinions in connection with the reorganization of General Electric RSP U.S. Equity Fund into State Street U.S. Core Equity Fund and the reorganization of General Electric RSP Income Fund into State Street Income Fund is filed herewith.

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM September 20, 2021 General Electric RSP U.S. Equity Fund & General Electric RSP Income Fund One Iron Street Boston, Massachusetts 02110 State Street U.S. Core Equity Fund & State Street Income Fund State Street Institutional Investment Trust One Iron Street Boston, Massachusetts 02110 Ladies and Gentlemen

September 20, 2021 EX-99.(12)(B)

Opinion of Ropes & Gray LLP as to tax matters in connection with the reorganization of General Electric RSP Income Fund into State Street Income Fund is filed herewith.

ROPES & GRAY LLP 1211 AVENUE OF THE AMERICAS NEW YORK, NY 10036-8704 WWW.ROPESGRAY.COM May 24, 2021 General Electric RSP Income Fund One Iron Street Boston, Massachusetts 02210 State Street Income Fund State Street Institutional Investment Trust One Iron Street Boston, Massachusetts 02210 Ladies and Gentlemen: We have acted as counsel in connection with the Agreement and Plan of Reorganization (th

September 20, 2021 POS EX

As filed with the Securities and Exchange Commission On September 20, 2021

As filed with the Securities and Exchange Commission On September 20, 2021 Securities Act Registration No.

September 20, 2021 EX-99.(12)

Opinion of Ropes & Gray LLP as to tax matters in connection with the reorganization of General Electric RSP U.S. Equity Fund into State Street U.S. Core Equity Fund is filed herewith.

ROPES & GRAY LLP 1211 AVENUE OF THE AMERICAS NEW YORK, NY 10036-8704 WWW.ROPESGRAY.COM May 24, 2021 General Electric RSP U.S. Equity Fund One Iron Street Boston, Massachusetts 02210 State Street U.S. Core Equity Fund State Street Institutional Investment Trust One Iron Street Boston, Massachusetts 02210 Ladies and Gentlemen: We have acted as counsel in connection with the Agreement and Plan of Reo

September 2, 2021 CORRESP

* * *

CORRESP 1 filename1.htm ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM September 2, 2021 Adam M. Schlichtmann 617-951-7114 617-235-7346 fax [email protected] VIA EDGAR CORRESPONDENCE Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Tru

August 27, 2021 COVER

ROPES & GRAY LLP

COVER 10 filename10.htm ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM August 27, 2021 Adam M. Schlichtmann T +1 617 951 7114 F +1 617 235 7346 [email protected] BY EDGAR Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Trust (Registration Nos. 333-30810 and 811-09819)

August 11, 2021 COVER

ROPES & GRAY LLP

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM Adam M. Schlichtmann T +1 617 951 7114 F +1 617 235 7346 [email protected] August 11, 2021 BY EDGAR Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Trust (Registration Nos. 333-30810 and 811-09819) Ladies and Gentlemen: T

July 1, 2021 COVER

1

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM Adam M. Schlichtmann T +1 617 951 7114 F +1 617 235 7346 [email protected] July 1, 2021 BY EDGAR Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Trust (Registration Nos. 333-30810 and 811-09819) Ladies and Gentlemen: Tran

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

State Street Institutional Investment Trust Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

State Street Institutional Investment Trust Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

State Street Institutional Investment Trust Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

State Street Institutional Investment Trust Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

State Street Institutional Investment Trust Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

May 28, 2021 NPORT-EX

Description % of Net Assets Banks 9.7% Internet 5.6 Semiconductors 5.4 Pharmaceuticals 5.1 Insurance 4.0 TOTAL 29.8%

Quarterly Report March 31, 2021 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

April 23, 2021 CORRESP

* * *

CORRESP 1 filename1.htm ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM April 23, 2021 Adam M. Schlichtmann 617-951-7114 617-235-7346 fax [email protected] VIA EDGAR CORRESPONDENCE Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Trust

April 19, 2021 425

Merger Prospectus - STATE STREET INSTITUTIONAL INVESTMENT TRUST

Filed by State Street Institutional Investment Trust pursuant to Rule 425 under the Securities Act of 1933, as amended Subject Company: General Electric RSP U.

April 19, 2021 425

Merger Prospectus - STATE STREET INSTITUTIONAL INVESTMENT TRUST

425 1 d355377d425.htm STATE STREET INSTITUTIONAL INVESTMENT TRUST Filed by State Street Institutional Investment Trust pursuant to Rule 425 under the Securities Act of 1933, as amended Subject Company General Electric RSP Income Fund Investment Company Act File Number of the Subject Company: 811-21435 April 19, 2021 GE Retirement Savings Plan (“RSP”) – Upcoming Reorganization of the General Electr

April 7, 2021 CORRESP

* * *

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM April 7, 2021 Adam M. Schlichtmann 617-951-7114 617-235-7346 fax [email protected] VIA EDGAR CORRESPONDENCE Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, D.C. 20549 Re: Comments on Registration Statement on Form N-14 (File No. 333-253948)

April 7, 2021 CORRESP

* * *

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM April 7, 2021 Adam M. Schlichtmann 617-951-7114 617-235-7346 fax [email protected] VIA EDGAR CORRESPONDENCE Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, D.C. 20549 Re: Comments on Registration Statement on Form N-14 (File No. 333-253948)

March 12, 2021 EX-99.11

Opinion and Consent of Ropes & Gray LLP regarding the legality of the securities being registered – filed herewith.

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM Exhibit (11) March 5, 2021 State Street Institutional Investment Trust 1 Iron Street Boston, Massachusetts 02210 Re: State Street U.S. Core Equity Fund and State Street Income Fund (the ?Funds?) Ladies and Gentlemen: We are furnishing this opinion in connection with the Registration Statement on Form N-14

March 12, 2021 EX-99.14

Consent of Independent Registered Public Accounting Firm – filed herewith.

Exhibit (14) CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the references to our firm in the Registration Statement on Form N-14 of State Street Institutional Investment Trust with respect to its series, State Street U.

March 12, 2021 COVER

ROPES & GRAY LLP

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM March 12, 2021 Adam M. Schlichtmann T +1 617 951 7114 F +1 617 235 7346 [email protected] VIA EDGAR Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, DC 20549-1090 Re: State Street Institutional Investment Trust (the “Registrant”) Registratio

March 12, 2021 N-14/A

As filed with the Securities and Exchange Commission On March 12, 2021 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-14 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933 ☒ Pre-Effective Amendment No. 1 ☒ Post-Effectiv

N-14/A 1 d148526dn14a.htm STATE STREET INSTITUTIONAL INVESTMENT TRUST Securities Act Registration No. 333-253948 As filed with the Securities and Exchange Commission On March 12, 2021 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-14 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ☒ Pre-Effective Amendment No. 1 ☒ Post-Effective Amendment No. ☐ STATE STREET

March 5, 2021 COVER

ROPES & GRAY LLP

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM March 5, 2021 Adam M. Schlichtmann T +1 617 951 7114 F +1 617 235 7346 [email protected] VIA EDGAR Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, DC 20549-1090 Re: State Street Institutional Investment Trust (the “Registrant”) Registration

March 5, 2021 EX-99.11

Opinion and Consent of Ropes & Gray LLP regarding the legality of the securities being registered is incorporated herein by reference to the Combined Information Statement/Prospectus on From N-14 filed with the Commission on March 5, 2021.

EX-99.11 2 d121546dex9911.htm OPINION AND CONSENT OF ROPES & GRAY LLP ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM Exhibit (11) March 5, 2021 State Street Institutional Investment Trust 1 Iron Street Boston, Massachusetts 02210 Re: State Street U.S. Core Equity Fund and State Street Income Fund (the “Funds”) Ladies and Gentlemen: We are furnishing t

March 5, 2021 EX-99.14

Consent of Independent Registered Public Accounting Firm – filed herewith.

Exhibit (14) CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the references to our firm in the Registration Statement on Form N-14 of the General Electric RSP Funds and to the use of our report dated February 22, 2021 on the financial statements and financial highlights of General Electric RSP Income Fund and General Electric RSP U.

March 5, 2021 N-14

As filed with the Securities and Exchange Commission On March 5, 2021 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-14 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933 ☒ Pre-Effective Amendment No. ☐ Post-Effective A

N-14 1 d121546dn14.htm STATE STREET INSTITUTIONAL INVESTMENT TRUST Securities Act Registration No. 333-[ ] As filed with the Securities and Exchange Commission On March 5, 2021 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-14 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ☒ Pre-Effective Amendment No. ☐ Post-Effective Amendment No. ☐ STATE STREET INSTITUTI

February 25, 2021 COVER

ROPES & GRAY LLP

SEC Transmittal Letter ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.

February 10, 2021 40-17F2

- STATE STREET INSTITUTIONAL INVESTMENT TRUST

STATE STREET INSTITUTIONAL INVESTMENT TRUST U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 June 30, 2020 2. State Identification Number: A

February 9, 2021 40-17F2

- STATE STREET INSTITUTIONAL INVESTMENT TRUST

STATE STREET INSTITUTIONAL INVESTMENT TRUST U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 May 31, 2020 2. State Identification Number: AL

January 28, 2021 COVER

ROPES & GRAY LLP

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM January 28, 2021 Adam M. Schlichtmann T +1 617 951 7114 F +1 617 235 7346 [email protected] BY EDGAR Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Trust (Registration Nos. 333-30810 and 811-09819) Ladies and Gentlemen:

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

November 27, 2020 NPORT-EX

Description % of Net Assets Banks 9.0% Internet 6.5 Pharmaceuticals 5.9 Insurance 4.5 Semiconductors 4.4 TOTAL 30.3%

FOR VALIDATION PURPOSES ONLY - [16525.SSIIT] Quarterly Report September 30, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.S. Index Fund State Street Global All Cap Equity ex- U.S. Index Portfolio

October 8, 2020 40-17F2

- STATE STREET INSTITUTIONAL INVESTMENT TRUST

STATE STREET INSTITUTIONAL INVESTMENT TRUST U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 October 31, 2019 2. State Identification Number

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

1

Quarterly Report March 31, 2020 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global All Cap Equity ex- U.

June 1, 2020 NPORT-EX

137

STATE STREET DEFENSIVE GLOBAL EQUITY PORTFOLIO Schedule of Investments March 31, 2020 (Unaudited) State Street Defensive Global Equity Fund is a feeder fund that invests substantially all of its investable assets in a master fund, the State Street Defensive Global Equity Portfolio.

May 22, 2020 NPORT-EX

-

STATE STREET INSTITUTIONAL INVESTMENT TRUST Quarterly Report September 30, 2019 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global Equity ex-U.

April 22, 2020 CORRESP

-

CORRESP 1 filename1.htm ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM Adam M. Schlichtmann 617-951-7114 617-235-7346 fax [email protected] April 22, 2020 VIA EDGAR CORRESPONDENCE Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Trust

February 24, 2020 COVER

ROPES & GRAY LLP

SEC Transmittal Letter ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 February 24, 2020 Adam M.

February 13, 2020 CORRESP

TRIXX / State Street Institutional Treasury Money Market Fund CORRESP - -

CORRESP 1 filename1.htm ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM February 13, 2020 Adam M. Schlichtmann 617-951-7114 617-235-7346 fax [email protected] VIA EDGAR CORRESPONDENCE Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Tru

February 7, 2020 40-17F2

SSCJX / State Street Target Retirement 2035 Fund 40-17F2 - - STATE STREET INSTITUTIONAL INVESTMENT TRUST

40-17F2 1 d871302d4017f2.htm STATE STREET INSTITUTIONAL INVESTMENT TRUST U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 April 30, 2019 2.

February 7, 2020 40-17F2

SSCJX / State Street Target Retirement 2035 Fund 40-17F2 - - STATE STREET INSTITUTIONAL INVESTMENT TRUST

40-17F2 1 d846231d4017f2.htm STATE STREET INSTITUTIONAL INVESTMENT TRUST U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 June 30, 2019 2. S

December 11, 2019 CORRESP

-

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM December 11, 2019 Adam M. Schlichtmann 617-951-7114 617-235-7346 fax [email protected] VIA EDGAR CORRESPONDENCE Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Trust (the “Trust” or the “

November 27, 2019 NPORT-EX

STFAX / State Street Equity 500 Index Fund NPORT-EX - -

STATE STREET INSTITUTIONAL INVESTMENT TRUST Quarterly Report September 30, 2019 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global Equity ex-U.

October 10, 2019 COVER

ROPES & GRAY LLP

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM Adam M. Schlichtmann T +1 617 951 7114 F +1 617 235 7346 [email protected] October 10, 2019 BY EDGAR Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Trust (Registration Nos. 333-30810 and 811-09819) Ladies and Gentlemen:

September 17, 2019 40-17F2

State Street Institutional Investment Trust 40-17F2 - - STATE STREET INSTITUTIONAL INVESTMENT TRUST

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 December 31, 2018 2. State Identification Number: AL AK AZ AR CA CO CT DE DC FL GA HI ID IL

September 17, 2019 40-17F2

State Street Institutional Investment Trust 40-17F2 - - STATE STREET INSTITUTIONAL INVESTMENT TRUST

U.S. Securities and Exchange Commission Washington, D.C. 20549 FORM N-17f-2 Certificate of Accounting of Securities and Similar Investments in the Custody of Management Investment Companies Pursuant to Rule 17f-2 [17 CFR 270.17f-2] 1. Investment Company Act File Number: Date examination completed: 811-09819 September 30, 2018 2. State Identification Number: AL AK AZ AR CA CO CT DE DC FL GA HI ID I

August 22, 2019 CORRESP

-

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM August 22, 2019 Adam M. Schlichtmann 617-951-7114 617-235-7346 fax [email protected] VIA EDGAR CORRESPONDENCE Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Trust (the “Trust” or the “Re

June 28, 2019 CORRESP

State Street Institutional Investment Trust CORRESP - -

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM June 28, 2019 Adam M. Schlichtmann 617-951-7114 617-235-7346 fax [email protected] VIA EDGAR CORRESPONDENCE Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Trust (the ?Trust? or the ?Regi

June 25, 2019 CORRESP

State Street Institutional Investment Trust CORRESP - -

ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM June 25, 2019 Adam M. Schlichtmann 617-951-7114 617-235-7346 fax [email protected] VIA EDGAR CORRESPONDENCE Securities and Exchange Commission Division of Investment Management 100 F Street, N.E. Washington, D.C. 20549 Re: State Street Institutional Investment Trust (the “Trust” or the “Regi

May 29, 2019 NPORT-EX

State Street Institutional Investment Trust NPORT-EX - -

NPORT-EX 1 edgarytlzwiih.htm Quarterly Report March 31, 2019 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global Equity ex-U.S. Index Fund State Street Global Equity ex-U.S. Index Portfolio State Street Small/Mid Cap Equity Ind

May 29, 2019 NPORT-EX

State Street Institutional Investment Trust NPORT-EX - -

Quarterly Report March 31, 2019 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global Equity ex-U.

May 29, 2019 NPORT-EX

State Street Institutional Investment Trust NPORT-EX - -

Quarterly Report March 31, 2019 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global Equity ex-U.

May 29, 2019 NPORT-EX

State Street Institutional Investment Trust NPORT-EX - -

Quarterly Report March 31, 2019 State Street Institutional Investment Trust State Street Equity 500 Index Fund State Street Equity 500 Index II Portfolio State Street Aggregate Bond Index Fund State Street Aggregate Bond Index Portfolio State Street Global Equity ex-U.

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