# State Street Federal Prime Retail Reserves Money Market Fund — new fund registration

STATE STREET INSTITUTIONAL INVESTMENT TRUST registered 1 new fund series on Form 485APOS, filed 2025-11-21. Featured series: State Street Federal Prime Retail Reserves Money Market Fund.

## Registration

- Registrant / trust: STATE STREET INSTITUTIONAL INVESTMENT TRUST
- CIK: 0001107414
- Form: 485APOS
- Filed: 2025-11-21
- State of incorporation: MA
- Accession: 0001193125-25-290916

## Series & classes (5)

| Series | Class | Ticker | New |
| --- | --- | --- | --- |
| [State Street Federal Prime Retail Reserves Money Market Fund](https://search.stillhousedata.com/fund/S000101207) | Advisory Class | PRDXX | Yes |
| [State Street Federal Prime Retail Reserves Money Market Fund](https://search.stillhousedata.com/fund/S000101207) | Advantage Class | PAVXX | Yes |
| [State Street Federal Prime Retail Reserves Money Market Fund](https://search.stillhousedata.com/fund/S000101207) | Cash Management Class | PCMXX | Yes |
| [State Street Federal Prime Retail Reserves Money Market Fund](https://search.stillhousedata.com/fund/S000101207) | Capital Class | PCPXX | Yes |
| [State Street Federal Prime Retail Reserves Money Market Fund](https://search.stillhousedata.com/fund/S000101207) | Agency Class | PRAXX | Yes |

## Fees (from the effective prospectus)

- 12b-1 fee: 0.00%
- Gross expense ratio: 0.35%
- Management fee: 0.05%

## Investment objective

The investment objective of the State Street Federal Prime Retail Reserves Money Market Fund (the Fund) is to seek to maximize current income, to the extent consistent with the preservation of capital and liquidity and the maintenance of a stable $1.00 per share net asset value.

## 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 — 2025-11-14 (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 — 2025-04-15](https://search.stillhousedata.com/launch/0001193125-25-081544)
- [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/0001193125-25-290916.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.