# Prime STIF Portfolio — new fund registration

ALLIANCEBERNSTEIN INSTITUTIONAL RESERVES INC registered 2 new fund series on Form 485APOS, filed 2006-02-21. Featured series: Prime STIF Portfolio.

## Registration

- Registrant / trust: ALLIANCEBERNSTEIN INSTITUTIONAL RESERVES INC
- CIK: 0000862021
- Form: 485APOS
- Filed: 2006-02-21
- State of incorporation: MD
- Accession: 0000919574-06-001460

## Series & classes (2)

| Series | Class | Ticker | New |
| --- | --- | --- | --- |
| [Prime STIF Portfolio](https://search.stillhousedata.com/fund/S000011989) | Prime STIF Portfolio | — | Yes |
| [Government STIF Portfolio](https://search.stillhousedata.com/fund/S000011990) | Government STIF Portfolio | MYMXX | Yes |

## Other filings by this registrant (4)

- [485APOS — 2019-03-14](https://search.stillhousedata.com/launch/0000919574-19-002415)
- [485APOS — 2017-06-26](https://search.stillhousedata.com/launch/0000919574-17-005011)
- [485APOS — 2016-03-10](https://search.stillhousedata.com/launch/0000919574-16-011753)
- [485APOS — 2001-02-02](https://search.stillhousedata.com/launch/0000919574-01-000095)

## More

- [Registrant profile: ALLIANCEBERNSTEIN INSTITUTIONAL RESERVES INC](https://search.stillhousedata.com/registrant/862021)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/launch/0000919574-06-001460.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.