# EDGAR Filing Document

**Accession Number:** 0001107414
**File Stem:** 0000876661-26-000119
**Filing Date:** 2026-2
**Character Count:** 998
**Document Hash:** b608e5764f7a997d32103be20e0542b2
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000876661-26-000119.hdr.sgml**: 20260211

**ACCESSION NUMBER**: 0000876661-26-000119

**CONFORMED SUBMISSION TYPE**: CERT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260211

**DATE AS OF CHANGE**: 20260211

**EFFECTIVENESS DATE**: 20260211

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** STATE STREET INSTITUTIONAL INVESTMENT TRUST
- **CENTRAL INDEX KEY:** 0001107414

**ORGANIZATION NAME:**
- **EIN:** 046910804
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** CERT
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-43104
- **FILM NUMBER:** 26618480

**BUSINESS ADDRESS:**
- **STREET 1:** ONE CONGRESS STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02114
- **BUSINESS PHONE:** 6176643920

**MAIL ADDRESS:**
- **STREET 1:** ONE CONGRESS STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02114

### Attached PDF Documents

**Attachment 1:** `MMK021126.pdf`

_No text found in this document._