# Western Asset Institutional Money Market Fund — new fund registration

LEGG MASON PARTNERS INSTITUTIONAL TRUST registered fund series on Form 485APOS, filed 2010-03-26. Featured series: Western Asset Institutional Money Market Fund.

## Registration

- Registrant / trust: LEGG MASON PARTNERS INSTITUTIONAL TRUST
- CIK: 0000889512
- Form: 485APOS
- Filed: 2010-03-26
- State of incorporation: MD
- Accession: 0000930413-10-001628

## Series & classes (6)

| Series | Class | Ticker | New |
| --- | --- | --- | --- |
| [Western Asset Institutional Money Market Fund](https://search.stillhousedata.com/fund/S000016857) | Institutional Shares | — | — |
| [Western Asset Institutional Money Market Fund](https://search.stillhousedata.com/fund/S000016857) | Premium Shares | — | — |
| [Western Asset Institutional Government Money Market Fund](https://search.stillhousedata.com/fund/S000016858) | Institutional Shares | INGXX | — |
| [Western Asset Institutional Government Money Market Fund](https://search.stillhousedata.com/fund/S000016858) | Premium Shares | LWPXX | — |
| [Western Asset Institutional Municipal Money Market Fund](https://search.stillhousedata.com/fund/S000016859) | Institutional Shares | — | — |
| [Western Asset Institutional Municipal Money Market Fund](https://search.stillhousedata.com/fund/S000016859) | Premium Shares | — | — |

## Other filings by this registrant (15)

- [485APOS — 2025-09-15](https://search.stillhousedata.com/launch/0001193125-25-203245)
- [485APOS — 2020-05-15 (1 new series)](https://search.stillhousedata.com/launch/0001193125-20-143698)
- [485APOS — 2019-08-13 (5 new series)](https://search.stillhousedata.com/launch/0001193125-19-219733)
- [485APOS — 2016-06-16](https://search.stillhousedata.com/launch/0001193125-16-622669)
- [485APOS — 2015-10-09 (1 new series)](https://search.stillhousedata.com/launch/0001193125-15-341321)
- [485APOS — 2013-06-07 (3 new series)](https://search.stillhousedata.com/launch/0001193125-13-251246)
- [485APOS — 2012-08-31 (1 new series)](https://search.stillhousedata.com/launch/0001193125-12-377071)
- [485APOS — 2010-06-16](https://search.stillhousedata.com/launch/0001193125-10-140815)
- [485APOS — 2010-03-11](https://search.stillhousedata.com/launch/0000930413-10-001392)
- [485APOS — 2009-11-25](https://search.stillhousedata.com/launch/0000930413-09-005981)
- [485APOS — 2009-10-16](https://search.stillhousedata.com/launch/0000930413-09-005224)
- [485APOS — 2009-07-30](https://search.stillhousedata.com/launch/0000930413-09-003930)

## More

- [Registrant profile: LEGG MASON PARTNERS INSTITUTIONAL TRUST](https://search.stillhousedata.com/registrant/889512)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/launch/0000930413-10-001628.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.