# STATE STREET INSTITUTIONAL INVESTMENT TRUST — new fund registration

STATE STREET INSTITUTIONAL INVESTMENT TRUST registered as a closed-end fund on Form 485APOS, filed 2025-04-15.

## Registration

- Registrant / trust: STATE STREET INSTITUTIONAL INVESTMENT TRUST
- CIK: 0001107414
- Form: 485APOS
- Filed: 2025-04-15
- State of incorporation: MA
- Accession: 0001193125-25-081544

## Other filings by this registrant (15)

- [485APOS — 2026-07-01](https://search.stillhousedata.com/launch/0001193125-26-291811)
- [485APOS — 2026-04-10](https://search.stillhousedata.com/launch/0001193125-26-151377)
- [485APOS — 2025-11-21 (5 new series)](https://search.stillhousedata.com/launch/0001193125-25-290916)
- [485APOS — 2025-11-14 (2 new series)](https://search.stillhousedata.com/launch/0001193125-25-282942)
- [485APOS — 2025-10-20 (1 new series)](https://search.stillhousedata.com/launch/0001193125-25-243706)
- [485APOS — 2025-02-28](https://search.stillhousedata.com/launch/0001193125-25-042596)
- [485APOS — 2024-06-28 (3 new series)](https://search.stillhousedata.com/launch/0001193125-24-171946)
- [485APOS — 2024-05-23 (3 new series)](https://search.stillhousedata.com/launch/0001193125-24-145807)
- [485APOS — 2023-08-11 (1 new series)](https://search.stillhousedata.com/launch/0001193125-23-210375)
- [485APOS — 2021-10-08 (1 new series)](https://search.stillhousedata.com/launch/0001193125-21-295346)
- [485APOS — 2021-09-02](https://search.stillhousedata.com/launch/0001193125-21-264586)
- [485APOS — 2021-08-27](https://search.stillhousedata.com/launch/0001193125-21-259307)

## More

- [Registrant profile: STATE STREET INSTITUTIONAL INVESTMENT TRUST](https://search.stillhousedata.com/registrant/1107414)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/launch/0001193125-25-081544.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.