UBS Series Funds
03/13/2026 | Press release | Distributed by Public on 03/13/2026 14:58
Prospectus by Investment Company (Form 497)
March 13, 2026
Supplement to the prospectuses (each, a "Prospectus" and together, the "Prospectuses") and Part Bs referenced on the reverse, as may have been supplemented.
Includes:
| • |
UBS Series Funds |
| • |
Master Trust |
Dear Investor,
The purpose of this supplement is to update certain information in the Prospectuses and Part Bs, as applicable, for the above-named investment trusts, including each series thereof referenced on the reverse (collectively, the "funds"), as described below.
The funds, indicated on the reverse chart, will be closed for business on April 3, 2026, in observance of Good Friday, in accordance with the New York Stock Exchange holiday schedule.
PLEASE BE SURE TO RETAIN THIS IMPORTANT INFORMATION FOR FUTURE REFERENCE.
© UBS 2026. All rights reserved.
UBS Asset Management (Americas) LLC
ZS-1296
This supplement relates to each of the following Prospectuses/Part Bs:
| Prospectus/Part B |
Date of Prospectus/Part B |
|||
| UBS Series Funds-UBS Select Government Institutional Fund, UBS Select Treasury Institutional Fund, UBS Select 100% US Treasury Institutional Fund (Institutional Shares) | August 28, 2025 | |||
| UBS Series Funds-UBS Select 100% US Treasury Institutional Fund (Token-Enabled Shares) | January 26, 2026 | |||
| UBS Series Funds-UBS Select Government Preferred Fund, UBS Select Treasury Preferred Fund, UBS Select 100% US Treasury Preferred Fund | August 28, 2025 | |||
| UBS Series Funds-UBS Prime Preferred Fund | August 28, 2025 | |||
| UBS Series Funds-UBS Prime Reserves Fund | August 28, 2025 | |||
| UBS Series Funds-Limited Purpose Cash Investment Fund |
|
August 22, 2025, as revised November 14, 2025 |
|
|
| Master Trust-Government Master Fund, Treasury Master Fund, 100% US Treasury Master Fund, Prime CNAV Master Fund | August 22, 2025 | |||
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UBS Series Funds published this content on March 13, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on March 13, 2026 at 20:58 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]