Prospectus by Investment Company - Form 497

497

VGOF-SA1 10/24

LEGG MASON PARTNERS INSTITUTIONAL TRUST

LEGG MASON PARTNERS MONEY MARKET TRUST

SUPPLEMENT DATED OCTOBER 2, 2024, TO THE

STATEMENT OF ADDITIONAL INFORMATION ("SAI")

OF EACH FUND LISTED IN SCHEDULE A

The following replaces the second paragraph and accompanying table in the section titled "DISCLOSURE OF PORTFOLIO HOLDINGS - Ongoing Arrangements" in each fund's SAI:

Set forth below is a list, as of October 2, 2024, of those parties with whom the Manager, on behalf of the Fund, has authorized ongoing arrangements that include the release of portfolio holdings information in accordance with the policy, as well as the maximum frequency of the release under such arrangements, and the minimum length of the lag, if any, between the date of the information and the date on which the information is disclosed. The ongoing arrangements may vary for each party, and it is possible that not every party will receive information for the Fund. The parties identified below as recipients are service providers, fund rating agencies, consultants and analysts.

Recipient		Frequency		Delay Before Dissemination
Bank of New York Mellon (Fund Custodian and Accounting Agent)		Daily		None
Bloomberg		Monthly		10 Days
Charles River		Daily		None
FactSet		Monthly		15 Days
ICE Data Pricing & Reference Data, LLC		Daily		None
Institutional Shareholder Services (Proxy Voting Services)		Daily		None
Lipper		Monthly		10 Days
Middle Office Solutions, LLC		Daily		None
Morningstar		Monthly		10 Days
NaviSite, Inc.		Daily		None
Thomson		Semi-annually		None
Tradeweb Markets LLC		Daily		None

SCHEDULE A

Fund		Date of SAI
LEGG MASON PARTNERS INSTITUTIONAL TRUST
Western Asset Institutional Government Reserves		December 29, 2023
Western Asset Institutional Liquid Reserves		December 29, 2023
Western Asset Institutional U.S. Treasury Obligations Money Market Fund		December 29, 2023
Western Asset Institutional U.S. Treasury Reserves		December 29, 2023
Western Asset Premier Institutional Government Reserves		December 29, 2023
Western Asset Premier Institutional Liquid Reserves		December 29, 2023
Western Asset Premier Institutional U.S. Treasury Reserves		December 29, 2023
Western Asset Select Tax Free Reserves		December 29, 2023
LEGG MASON PARTNERS MONEY MARKET TRUST
Western Asset Government Reserves		December 29, 2023

Please retain this supplement for future reference.

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