# EDGAR Filing Document

**Accession Number:** 0001060517
**File Stem:** 0001193125-26-106337
**Filing Date:** 2026-3
**Character Count:** 57808
**Document Hash:** faa387966c9499ae428edde50ac26bae
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-106337.hdr.sgml**: 20260313

**ACCESSION NUMBER**: 0001193125-26-106337

**CONFORMED SUBMISSION TYPE**: POS AMI

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260313

**DATE AS OF CHANGE**: 20260313

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** UBS Series Funds
- **CENTRAL INDEX KEY:** 0001060517

**ORGANIZATION NAME:**
- **EIN:** 134010447
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0430

**FILING VALUES:**
- **FORM TYPE:** POS AMI
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-08767
- **FILM NUMBER:** 26753235

**BUSINESS ADDRESS:**
- **STREET 1:** C/O UBS ASSET MANAGEMENT (AMERICAS) LLC
- **STREET 2:** 1285 AVENUE OF THE AMERICAS
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10019
- **BUSINESS PHONE:** 212-821-3000

**MAIL ADDRESS:**
- **STREET 1:** C/O UBS ASSET MANAGEMENT (AMERICAS) LLC
- **STREET 2:** 1285 AVENUE OF THE AMERICAS
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10019

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** UBS MONEY SERIES
- **DATE OF NAME CHANGE:** 20020716

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BRINSON MONEY SERIES
- **DATE OF NAME CHANGE:** 20010625

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MITCHELL HUTCHINS LIR MONEY SERIES
- **DATE OF NAME CHANGE:** 19990730

## Series and Classes Contracts Data

### Limited Purpose Cash Investment Fund (Series ID: S000056215)

| Class ID   | Class Name                           | Ticker Symbol   |
|:---|:---|:---|
| C000176976 | Limited Purpose Cash Investment Fund |  |

As filed with the Securities and Exchange Commission on March 13, 2026

Investment Company Act File No. 811-08767

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 [X]

Amendment No. 103

**UBS Series Funds** 

(Exact Name of Registrant Specified in Charter)

c/o UBS Asset Management (Americas) LLC

1285 Avenue of the Americas

New York, New York 10019

(Address of Principal Executive Offices)

Registrant's telephone number, including area code: (888) 793-8637

KEITH A. WELLER, ESQ.

UBS ASSET MANAGEMENT (AMERICAS) LLC

One North Wacker Drive

Chicago, Illinois 60606

(Name and address of agent for service)

Copies to:

STEPHEN H. BIER, ESQ.

DECHERT LLP

Three Bryant Park

1095 Avenue of the Americas

New York, New York 10036

Telephone: (212) 698-3500

It is intended that this filing will become effective immediately upon filing in accordance with Section 8 of the Investment Company Act of 1940 and rules thereunder.

------

**Explanatory Note** 

UBS Series Funds (the "Trust") has filed this Amendment No. 103 to the Registration Statement of the Trust on Form N-1A (File No. 811-08767) (the "Registration Statement") pursuant to Section 8(b) of the Investment Company Act of 1940, as amended (the "1940 Act"). Shares of beneficial interest in Limited Purpose Cash Investment Fund (the "fund"), a series of the Trust, are not being registered under the Securities Act of 1933, as amended (the "1933 Act"), since such shares will be issued solely in private placement transactions that do not involve any "public offering" within the meaning of Section 4(a) (2) of the 1933 Act. Only investment companies, insurance company separate accounts, common or commingled trust funds or other organizations, entities or investors that are "accredited investors" within the meaning of Regulation D under the 1933 Act may make investments in the shares of the fund. Such investors are referred to herein as "shareholders." This Registration Statement is not an offer to sell, or the solicitation of an offer to buy, any shares in the fund.

This Amendment No. 103 to the Registration Statement is being filed under the 1940 Act to amend and supplement Amendment No. 100 to the Registration Statement under the 1940 Act, filed with the U.S. Securities and Exchange Commission ("Commission") on November 14, 2025 (Accession No. 0001193125-25-282826) ("Amendment 100"), as pertaining to Parts A and B of the Registration Statement with respect to the fund. [Parts A and B of the Registration Statement](http://www.sec.gov/Archives/edgar/data/1060517/000119312525282826/d847358dposami.htm) with respect to the fund, as filed in Amendment 100, are incorporated by reference herein.

------

![LOGO](g92691g00s01.jpg)

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<br>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,<br>as revised<br>November 14, 2025 |
| **Master Trust—**Government Master Fund, Treasury Master Fund, 100% US Treasury Master Fund, Prime CNAV Master Fund | August 22, 2025 |

---

------

**PART C** 

Item 28. Exhibits

---

| | |
|:---|:---|
| (1)(a) | [Trust Instrument](http://www.sec.gov/Archives/edgar/data/1060517/0000928385-98-001510.txt) 1/ |
| (b) | [Amendment to Trust Instrument effective July 28, 1999](http://www.sec.gov/Archives/edgar/data/1060517/000095011799001874/0000950117-99-001874.txt) 2/ |
| (c) | [Amendment to Trust Instrument effective May 9, 2001](http://www.sec.gov/Archives/edgar/data/1060517/000092838501501664/dex991c.txt) 3/ |
| (d) | [Certificate of Amendment to the Certificate of Trust effective May 9, 2001](http://www.sec.gov/Archives/edgar/data/1060517/000092838501501664/dex991d.txt) 3/ |
| (e) | [Amendment to Trust Instrument effective April 8, 2002](http://www.sec.gov/Archives/edgar/data/1060517/000095011702000994/ex99-a.txt) 4/ |
| (f) | [Amendment to Trust Instrument effective March 15, 2004](http://www.sec.gov/Archives/edgar/data/1060517/000095011704001576/ex1-f.txt) 5/ |
| (g) | [Amendment to Trust Instrument effective August 28, 2007](http://www.sec.gov/Archives/edgar/data/1060517/000120928607000247/e59027_ex1g.htm) 6/ |
| (h) | [Amendment to Trust Instrument effective October 6, 2008](http://www.sec.gov/Archives/edgar/data/1060517/000120928608000313/e66825_ex1h.htm) 7/ |
| (i) | [Certificate of Amendment to Trust Instrument effective May 20, 2015](http://www.sec.gov/Archives/edgar/data/1060517/000119312515305059/d74832dex991i.htm) 8/ |
| (j) | [Amendment to Trust Instrument effective October 16, 2015](http://www.sec.gov/Archives/edgar/data/1060517/000119312515345801/d93904dex991j.htm) 9/ |
| (k) | [Amendment to Trust Instrument effective December 30, 2015](http://www.sec.gov/Archives/edgar/data/1060517/000119312515417634/d52808dex991k.htm) 10/ |
| (l) | [Amendment to Trust Instrument effective April 15, 2016](http://www.sec.gov/Archives/edgar/data/1060517/000119312516630206/d160913dex991l.htm) 11/ |
| (m) | [Amendment to Trust Instrument effective August 26, 2016](http://www.sec.gov/Archives/edgar/data/1060517/000119312516692194/d160913dex991m.htm) 12/ |
| (n) | [Amendment to Trust Instrument effective October 27, 2016](http://www.sec.gov/Archives/edgar/data/1060517/000119312516769909/d275895dex991n.htm) 13/ |
| (o) | [Certificate of Amendment to the Certificate of Trust effective March 9, 2018](http://www.sec.gov/Archives/edgar/data/1060517/000119312518077501/d508988dex991o.htm) 14/ |
| (p) | [Amendment to Trust Instrument effective March 9, 2018](http://www.sec.gov/Archives/edgar/data/1060517/000119312518077501/d508988dex991p.htm) 14/ |
| (q) | [Amendment to Trust Instrument effective October 14, 2019](http://www.sec.gov/Archives/edgar/data/1060517/000119312519322764/d770119dex991q.htm) 15/ |
| (r) | [Amendment to Trust Instrument effective December 19, 2019](http://www.sec.gov/Archives/edgar/data/1060517/000119312519322764/d770119dex991r.htm) 15/ |
| (s) | [Amendment to Trust Instrument effective September 27, 2023](http://www.sec.gov/Archives/edgar/data/1060517/000119312523299769/0001193125-23-299769-index.htm) 16/ |
| (t) | [Amendment to Trust Instrument effective December 18, 2023](http://www.sec.gov/Archives/edgar/data/1060517/000119312524065084/d79099dex991t.htm) 17/ |
| (u) | [Amendment to Trust Instrument effective August 23, 2024](http://www.sec.gov/Archives/edgar/data/1060517/000119312524207861/d863693dex991u.htm) 18/ |
| (v) | [Amendment to Trust Instrument effective December 13, 2024](http://www.sec.gov/Archives/edgar/data/0001060517/000119312525188786/d45332dex991v.htm) 19/ |
| (w) | [Amendment to Trust Instrument effective November 26, 2025](http://www.sec.gov/Archives/edgar/data/1060517/000119312526021305/d68581dex991w.htm) 20/ |
| (2) (a) | [By-Laws](http://www.sec.gov/Archives/edgar/data/1060517/0000928385-98-001510.txt) 1/ |
| (b) | [Certificate of Amendment to By-Laws dated December 19, 2001](http://www.sec.gov/Archives/edgar/data/1060517/000095011702000994/ex99-b.txt) 4/ |
| (c) | [Certificate of Amendment to By-Laws dated February 15, 2002](http://www.sec.gov/Archives/edgar/data/1060517/000095011702000994/ex99-c.txt) 4/ |
| (d) | [Certificate of Amendment to By-Laws effective November 15, 2006](http://www.sec.gov/Archives/edgar/data/1060517/000120928607000171/e56334_ex2d.htm) 21/ |
| (e) | [Certificate of Amendment to By-Laws effective February 13, 2008](http://www.sec.gov/Archives/edgar/data/1060517/000120928608000180/e65096_ex2e.htm) 22/ |
| (f) | [Certificate of Amendment to By-Laws effective May 6, 2009](http://www.sec.gov/Archives/edgar/data/1060517/000120928609000470/e71231_ex2f.htm) 23/ |
| (g) | [Certificate of Amendment to By-Laws effective February 10, 2010](http://www.sec.gov/Archives/edgar/data/1060517/000120928610000443/e75658_ex2g.htm) 24/ |
| (h) | [Certificate of Amendment to By-Laws effective March 9, 2018](http://www.sec.gov/Archives/edgar/data/1060517/000119312518077501/d508988dex992h.htm) 14/ |
| (3) (a) | [Instruments defining the rights of holders of Registrant's shares of beneficial interest](http://www.sec.gov/Archives/edgar/data/1060517/0000928385-98-001510.txt) 25/ |
| (4) (a) | [Management Contract with respect to Limited Purpose Cash Investment Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312517268875/d305998dex994c.htm) 26/ |
| (b) | [Investment Advisory and Administration Contract with respect to UBS Ultra Short Income Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312518173773/d508988dex994d.htm) 27/ |
| (c) | [Restated Investment Advisory and Administration Contract with respect to UBS Liquid Assets Government Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524065084/d79099dex994e.htm) 17/ |
| (d) | [Amendment to Management Contract with respect to Limited Purpose Cash Investment Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524065084/d79099dex994f.htm) 17/ |
| (e) | [Amendment to Investment Advisory and Administration Contract with respect to UBS Ultra Short Income Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524065084/d79099dex994g.htm) 17/ |

---

------

---

| | |
|:---|:---|
| (f) | [Amended and Restated Selling Agreement with UBS Financial Services Inc. with respect to UBS Ultra Short Income Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524207861/d863693dex994f.htm) 18/ |
| (5) (a) | [Principal Underwriting Contract for UBS Select Treasury Institutional Fund (formerly, UBS Select Treasury Fund)](http://www.sec.gov/Archives/edgar/data/1060517/000095011704001576/ex5-h.txt) 5/ |
| (b) | [Amended and Restated Principal Underwriting Contract for UBS Select Treasury Preferred Fund, UBS Prime Preferred Fund, UBS Prime Reserves Fund, UBS Select Government Preferred Fund, UBS Select Government Institutional Fund, UBS RMA Government Money Market Fund, UBS Select 100% US Treasury Institutional Fund, UBS Select 100% US Treasury Preferred Fund, and Cantor Fitzgerald Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524065084/d79099dex995c.htm) 17/ |
| (c) | [Distribution Contract for UBS Liquid Assets Government Fund (formerly, UBS Liquid Assets Fund)](http://www.sec.gov/Archives/edgar/data/1060517/000091205700039192/ex-5_c.txt) 28/ |
| (d) | [Principal Underwriting Contract for UBS Ultra Short Income Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312518173773/d508988dex995e.htm) 27/ |
| (e) | [Dealer Agreement between UBS Asset Management (US) Inc.\* and UBS Financial Services Inc. with respect to UBS Liquid Assets Government Fund (formerly, UBS Liquid Assets Fund)](http://www.sec.gov/Archives/edgar/data/1060517/000091205700039192/ex-5_d.txt) 28/ |
| (f) | [Amendment to Dealer Agreement between UBS Asset Management (US) Inc.\* and UBS Financial Services Inc. to add UBS Select Treasury Preferred Fund](http://www.sec.gov/Archives/edgar/data/1060517/000120928607000247/e59027_ex5h.htm) 6/ |
| (g) | [Mutual Fund Account Administration Agreement with respect to UBS Select Treasury Institutional Fund](http://www.sec.gov/Archives/edgar/data/0001060517/000119312521259221/d179754dex995i.htm)29/ |
| (h) | [Amendment to Schedule B to Mutual Fund Account Administration Agreement with respect to UBS Select Treasury Institutional Fund](http://www.sec.gov/Archives/edgar/data/0001060517/000119312521259221/d179754dex995j.htm)29/ |
| (i) | [Amendment to Mutual Fund Account Administration Agreement with respect to UBS Select Treasury Institutional Fund](http://www.sec.gov/Archives/edgar/data/0001060517/000119312521259221/d179754dex995k.htm)29/ |
| (j) | [Amendment to Dealer Agreement between UBS Asset Management (US) Inc.\* and UBS Financial Services Inc. with respect to UBS Select Treasury Institutional Fund and UBS Select Treasury Preferred Fund](http://www.sec.gov/Archives/edgar/data/1060517/000120928610000443/e75658_ex5k.htm)24/ |
| (k) | [Amendment to Dealer Agreement between UBS Asset Management (US) Inc. and UBS Financial Services Inc. to add UBS Prime Preferred Fund and UBS Prime Reserves Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312516519925/d52808dex995l.htm)30/ |
| (l) | [Amendment to Dealer Agreement between UBS Asset Management (US) Inc. and UBS Financial Services Inc. to add UBS Select Government Preferred Fund and UBS Select Government Institutional Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312516692194/d160913dex995m.htm) 12/ |
| (m) | [Selected Dealer Agreement between UBS Asset Management (US) Inc.\* and Treasury Curve LLC with respect to UBS Select Treasury Institutional Fund and UBS Select Treasury Preferred Fund](http://www.sec.gov/Archives/edgar/data/1060517/000120928610000443/e75658_ex5m.htm)24/ |
| (n) | [Dealer Agreement between UBS Asset Management (US) Inc. and UBS Financial Services Inc. with respect to UBS RMA Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312516692194/d160913dex995t.htm)12/ |
| (o) | [Form of Amendment to Selected Dealer Agreement between UBS Asset Management (US) Inc. and various financial intermediaries](http://www.sec.gov/Archives/edgar/data/1060517/000119312516692194/d160913dex995u.htm)12/ |
| (p) | [Form of Selected Dealer Agreement between UBS Asset Management (US) Inc. and various financial intermediaries with respect to UBS Select Government Institutional Fund, UBS Select Treasury Institutional Fund, UBS Select Government Preferred Fund, UBS Select Treasury Preferred Fund, UBS Select 100% US Treasury Preferred Fund and UBS Select 100% US Treasury Institutional Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524065084/d79099dex995r.htm)17/ |
| (q) | [Form of Selected Dealer Agreement between UBS Asset Management (US) Inc. and various financial intermediaries with respect to Class A shares and Class P shares of UBS Ultra Short Income Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312518173773/d508988dex995y.htm)27/ |
| (r) | [Form of Selected Dealer Agreement between UBS Asset Management (US) Inc. and various financial intermediaries with respect to Class I shares of UBS Ultra Short Income Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312518173773/d508988dex995z.htm) 27/ |
| (s) | [Dealer Agreement between UBS Asset Management (US) Inc. and CF Secured, LLC with respect to Cantor Fitzgerald Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312523299769/0001193125-23-299769-index.htm) 16/ |

---

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| | |
|:---|:---|
| (t) | [Form of Amendment to Dealer Agreement between UBS Asset Management (US) Inc. and CF Secured, LLC with respect to Cantor Fitzgerald Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524075001/d641197dex995v.htm) 31/ |
| (6) (a) | Bonus, profit sharing or pension plans - none |
| (7) (a) | [Custodian Contract with State Street Bank and Trust Company for UBS Liquid Assets Government Fund (formerly, UBS Liquid Assets Fund)](http://www.sec.gov/Archives/edgar/data/1060517/000091205700039192/ex-7_c.txt) 26/ |
| (b) | [Amendment to the Custody Contract with State Street Bank and Trust Company to include UBS Select Treasury Institutional Fund (formerly, UBS Select Treasury Fund)](http://www.sec.gov/Archives/edgar/data/1060517/000095011704001576/ex7-d.txt) 5/ |
| (c) | [Amendment to the Custody Contract with State Street Bank and Trust Company to include UBS Select Treasury Preferred Fund](http://www.sec.gov/Archives/edgar/data/1060517/000120928609000470/e71231_ex7d.htm) 23/ |
| (d) | [Amendment to the Custody Contract with State Street Bank and Trust Company to include UBS Prime Preferred Fund and UBS Prime Reserves Fund](http://www.sec.gov/Archives/edgar/data/0001060517/000119312521259221/d179754dex997e.htm)29/ |
| (e) | [Amendment to the Custody Contract with State Street Bank and Trust Company to include UBS Select Government Preferred Fund, UBS Select Government Institutional Fund and UBS RMA Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312516692194/d160913dex997g.htm) 12/ |
| (f) | [Amendment to the Custody Contract with State Street Bank and Trust Company to include Limited Purpose Cash Investment Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312517268875/d305998dex997h.htm) 26/ |
| (g) | [Amendment to the Custody Contract with State Street Bank and Trust Company to include UBS Ultra Short Income Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312518173773/d508988dex997i.htm) 27/ |

---

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| | |
|:---|:---|
| (h) | [Amendment to the Custody Contract with State Street Bank and Trust Company to include Cantor Fitzgerald Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524012234/d641197dex997j.htm)32/ |
| (i) | [Form of Amendment to the Custody Contract with State Street Bank and Trust Company to include UBS Select 100% US Treasury Institutional Fund and UBS Select 100% US Treasury Preferred Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524065084/d79099dex997j.htm) 17/ |
| (8) (a) (i) | [Transfer Agency and Related Services Agreement for UBS Liquid Assets Government Fund (formerly, UBS Liquid Assets Fund)](http://www.sec.gov/Archives/edgar/data/1060517/000092838501501664/dex998aiv.txt) 3/ |
| (ii) | [Amendment No. 2 to the Transfer Agency and Services Agreement for UBS Liquid Assets Government Fund (formerly, UBS Liquid Assets Fund)](http://www.sec.gov/Archives/edgar/data/1060517/000095011704003172/ex8-av.txt) 33/ |
| (iii) | [Amendment No. 3 to the Transfer Agency and Services Agreement with BNY Mellon Investment Servicing (U.S.) Inc. to include UBS Select Treasury Institutional Fund (formerly, UBS Select Treasury Fund)](http://www.sec.gov/Archives/edgar/data/1060517/000095011704003172/ex8-avi.txt) 33/ |
| (iv) | [Amendment No. 4 to the Transfer Agency and Services Agreement with BNY Mellon Investment Servicing (U.S.) Inc. to include UBS Select Treasury Preferred Fund](http://www.sec.gov/Archives/edgar/data/1060517/000120928609000470/e71231_ex8avii.htm) 23/ |
| (v) | [Amendment No. 6 to the Transfer Agency and Services Agreement with BNY Mellon Investment Servicing (U.S.) Inc. to include UBS Prime Preferred Fund and UBS Prime Reserves Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312516692194/d160913dex998aviii.htm) 12/ |
| (vi) | [Amendment No. 7 to the Transfer Agency and Services Agreement with BNY Mellon Investment Servicing (U.S.) Inc. to include UBS Select Government Preferred Fund and UBS Select Government Institutional Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312516692194/d160913dex998aix.htm) 12/ |
| (vii) | [Transfer Agency and Related Services Agreement](http://www.sec.gov/Archives/edgar/data/703876/0001047469-98-033125.txt) 34/ |
| (viii) | [Amendment to the Transfer Agency Agreement](http://www.sec.gov/Archives/edgar/data/780403/000110465911037378/a11-14378_7ex99d8e.htm) 35/ |
| (ix) | [Adoption and Amendment Agreement with BNY Mellon Investment Servicing (U.S.) Inc. for UBS RMA Government Money Market Fund relating to the Transfer Agency and Related Services Agreement and Amendment to the Transfer Agency Agreement](http://www.sec.gov/Archives/edgar/data/1060517/000119312516769909/d275895dex998axii.htm) 13/ |
| (x) | [Amendment No. 8 to the Transfer Agency and Services Agreement with BNY Mellon Investment Servicing (U.S.) Inc. to include Limited Purpose Cash Investment Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312517268875/d305998dex998axiii.htm) 26/ |
| (xi) | [Amendment No. 9 to the Transfer Agency and Services Agreement with BNY Mellon Investment Servicing (U.S.) Inc. to include UBS Ultra Short Income Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312518260673/d431091dex998axiv.htm) 36/ |
| (xii) | [Amendment No. 11 to the Transfer Agency and Services Agreement with BNY Mellon Investment Servicing (U.S.) Inc. to include Cantor Fitzgerald Government Money Market Fund, UBS Select 100% US Treasury Institutional Fund, and UBS Select 100% US Treasury Preferred Fund](http://www.sec.gov/Archives/edgar/data/0001060517/000119312525188786/d45332dex998axii.htm) 19/ |

---

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| | | |
|:---|:---|:---|
| (b) | [Amended and Restated Administration Contract for UBS Select Treasury Institutional Fund, UBS Select Treasury Preferred Fund, UBS Prime Reserves Fund, UBS Prime Preferred Fund, UBS Select Government Institutional Fund, and UBS Select Government Preferred Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312519322764/d770119dex998b.htm) 15/ | [Amended and Restated Administration Contract for UBS Select Treasury Institutional Fund, UBS Select Treasury Preferred Fund, UBS Prime Reserves Fund, UBS Prime Preferred Fund, UBS Select Government Institutional Fund, and UBS Select Government Preferred Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312519322764/d770119dex998b.htm) 15/ |
| (c) | [Amended and Restated Administration Contract with respect to UBS RMA Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312519322764/d770119dex998c.htm) 15/ | [Amended and Restated Administration Contract with respect to UBS RMA Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312519322764/d770119dex998c.htm) 15/ |
| (d) | [Administration Contract for Cantor Fitzgerald Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312523299769/0001193125-23-299769-index.htm) 16/ | [Administration Contract for Cantor Fitzgerald Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312523299769/0001193125-23-299769-index.htm) 16/ |
| (e) | [Amendment to Amended and Restated Administration Contract for Institutional, Preferred and Reserves Series](http://www.sec.gov/Archives/edgar/data/1060517/000119312524065084/d79099dex998e.htm) 17/ | [Amendment to Amended and Restated Administration Contract for Institutional, Preferred and Reserves Series](http://www.sec.gov/Archives/edgar/data/1060517/000119312524065084/d79099dex998e.htm) 17/ |
| (f) | [Amendment to Amended and Restated Administration Contract with respect to UBS RMA Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524065084/d79099dex998f.htm) 17/ | [Amendment to Amended and Restated Administration Contract with respect to UBS RMA Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524065084/d79099dex998f.htm) 17/ |
| (g) | [Amendment to Administration Contract for Cantor Fitzgerald Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524065084/d79099dex998g.htm) 17/ | [Amendment to Administration Contract for Cantor Fitzgerald Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524065084/d79099dex998g.htm) 17/ |
| (h) | [Administration Contract for UBS Select 100% US Treasury Institutional Fund and UBS Select 100% US Treasury Preferred Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524065084/d79099dex998h.htm) 17/ | [Administration Contract for UBS Select 100% US Treasury Institutional Fund and UBS Select 100% US Treasury Preferred Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524065084/d79099dex998h.htm) 17/ |
| (i) | [Shareholder Services Plan with respect to UBS RMA Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312516519925/d52808dex998f.htm) 30/ | [Shareholder Services Plan with respect to UBS RMA Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312516519925/d52808dex998f.htm) 30/ |
| (j) | [Shareholder Services Plan and Agreement with respect to Cantor Fitzgerald Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312523299769/0001193125-23-299769-index.htm) 16/ | [Shareholder Services Plan and Agreement with respect to Cantor Fitzgerald Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312523299769/0001193125-23-299769-index.htm) 16/ |
| (k) | (i) | [Fee Waiver and Expense Reimbursement Agreement with respect to UBS Select Government Preferred Fund, UBS Select Treasury Preferred Fund and UBS Prime Preferred Fund](http://www.sec.gov/Archives/edgar/data/0001060517/000119312525188786/d45332dex998ki.htm) 19/ |
|  | (ii) | [Fee Waiver Agreement with respect to Limited Purpose Cash Investment Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312525185452/d82798dex998kii.htm) 37/ |
|  | (iii) | [Fee Waiver and Expense Reimbursement Agreement with respect to UBS Ultra Short Income Fund](http://www.sec.gov/Archives/edgar/data/0001060517/000119312525188786/d45332dex998kiii.htm) 19/ |
|  | (iv) | [Fee Waiver and Expense Reimbursement Agreement with respect to Cantor Fitzgerald Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/0001060517/000119312525188786/d45332dex998kiv.htm) 19/ |
|  | (v) | [Fee Waiver and Expense Reimbursement Agreement with respect to UBS Select 100% US Treasury Preferred Fund and UBS Select 100% US Treasury Institutional Fund](http://www.sec.gov/Archives/edgar/data/0001060517/000119312525188786/d45332dex998kv.htm) 19/ |
|  | (vi) | [Fee Waiver and Expense Reimbursement Agreement with respect to Token-Enabled Shares of UBS Select 100% US Treasury Institutional Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312526021305/d68581dex991w.htm) 20/ |
| (l) | [Exclusive Placement Agent Agreement with respect to Limited Purpose Cash Investment Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312517268875/d305998dex998h.htm) 26/ | [Exclusive Placement Agent Agreement with respect to Limited Purpose Cash Investment Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312517268875/d305998dex998h.htm) 26/ |
| (m) | (i) | [Service Agreement with State Street Bank and Trust Company, dated as of May 31, 2018](http://www.sec.gov/Archives/edgar/data/1060517/000119312518257904/d543651dex998i.htm) 38/ |
|  | (ii) | [Amendment to Service Agreement with State Street Bank and Trust Company to include Cantor Fitzgerald Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524012234/d641197dex998kiii.htm) 34/ |
|  | (iii) | [Form of Amendment to Service Agreement with State Street Bank and Trust Company to include UBS Select 100% US Treasury Institutional Fund, UBS Select 100% US Treasury Preferred Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524065084/d79099dex998miii.htm) 17/ |
| (n) | [Form of Fund of Funds Investment Agreement under Rule 12d1-4](http://www.sec.gov/Archives/edgar/data/1060517/000119312523221615/d497787dex998h.htm)39/ | [Form of Fund of Funds Investment Agreement under Rule 12d1-4](http://www.sec.gov/Archives/edgar/data/1060517/000119312523221615/d497787dex998h.htm)39/ |
| (9) (a) | [Opinion and Consent of Counsel with respect to UBS Select Treasury Institutional Fund, UBS Prime Reserves Fund, UBS Select Government Institutional Fund, UBS Select 100% US Treasury Institutional Fund, UBS Select Treasury Preferred Fund, UBS Prime Preferred Fund, UBS Select Government Preferred Fund, UBS Select 100% US Treasury Preferred Fund, UBS RMA Government Money Market Fund, Cantor Fitzgerald Government Money Market Fund, UBS Liquid Assets Government Fund and UBS Ultra Short Income Fund](http://www.sec.gov/Archives/edgar/data/0001060517/000119312525188786/d45332dex999a.htm) 19/ | [Opinion and Consent of Counsel with respect to UBS Select Treasury Institutional Fund, UBS Prime Reserves Fund, UBS Select Government Institutional Fund, UBS Select 100% US Treasury Institutional Fund, UBS Select Treasury Preferred Fund, UBS Prime Preferred Fund, UBS Select Government Preferred Fund, UBS Select 100% US Treasury Preferred Fund, UBS RMA Government Money Market Fund, Cantor Fitzgerald Government Money Market Fund, UBS Liquid Assets Government Fund and UBS Ultra Short Income Fund](http://www.sec.gov/Archives/edgar/data/0001060517/000119312525188786/d45332dex999a.htm) 19/ |
| (b) | [Opinion and Consent of Counsel with respect to UBS Select 100% US Treasury Institutional Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312526021305/d68581dex9910b.htm)20/ | [Opinion and Consent of Counsel with respect to UBS Select 100% US Treasury Institutional Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312526021305/d68581dex9910b.htm)20/ |
| (10) (a) | [Consent of Independent Registered Public Accounting Firm with respect to UBS Select Treasury Institutional Fund, UBS Prime Reserves Fund, UBS Select Government Institutional Fund, UBS Select 100% US Treasury Institutional Fund, UBS Select Treasury Preferred Fund, UBS Prime Preferred Fund, UBS Select Government Preferred Fund, UBS Select 100% US Treasury Preferred Fund, UBS RMA Government Money Market Fund, Cantor Fitzgerald Government Money Market Fund, UBS Liquid Assets Government Fund and UBS Ultra Short Income Fund](http://www.sec.gov/Archives/edgar/data/0001060517/000119312525188786/d45332dex9910a.htm) 19/ | [Consent of Independent Registered Public Accounting Firm with respect to UBS Select Treasury Institutional Fund, UBS Prime Reserves Fund, UBS Select Government Institutional Fund, UBS Select 100% US Treasury Institutional Fund, UBS Select Treasury Preferred Fund, UBS Prime Preferred Fund, UBS Select Government Preferred Fund, UBS Select 100% US Treasury Preferred Fund, UBS RMA Government Money Market Fund, Cantor Fitzgerald Government Money Market Fund, UBS Liquid Assets Government Fund and UBS Ultra Short Income Fund](http://www.sec.gov/Archives/edgar/data/0001060517/000119312525188786/d45332dex9910a.htm) 19/ |
| (b) | [Consent of Independent Registered Public Accounting Firm with respect to UBS Select 100% US Treasury Institutional Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312526021305/d68581dex9910b.htm) 20/ | [Consent of Independent Registered Public Accounting Firm with respect to UBS Select 100% US Treasury Institutional Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312526021305/d68581dex9910b.htm) 20/ |

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| | |
|:---|:---|
| (b) | [Consent of Independent Registered Public Accounting Firm with respect to Limited Purpose Cash Investment Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312525185452/d82798dex9910b.htm) 37/ |
| (11) | Omitted Financial Statements - none |
| (12) | [Letter of Investment Intent](http://www.sec.gov/Archives/edgar/data/1060517/0000928385-98-001510.txt) 1/ |
| (13) | [Shareholder Services Plan Pursuant to Rule 12b-1 with respect to Class A shares of UBS Ultra Short Income Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312518173773/d508988dex9913c.htm) 27/ |
| (14) (i) | [Multiple Class Plan Pursuant to Rule 18f-3 for UBS Ultra Short Income Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312518077501/d508988dex9914.htm) 14/ |
| (ii) | [Multiple Class Plan Pursuant to Rule 18f-3 for UBS Select 100% US Treasury Preferred Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524065084/d79099dex9914ii.htm) 17/ |
| (iii) | [Multiple Class Plan Pursuant to Rule 18f-3 for Cantor Fitzgerald Government Money Market Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312524075001/d641197dex9914iii.htm) 31/ |
| (iv) | [Multiple Class Plan Pursuant to Rule 18f-3 for UBS Select 100% US Treasury Institutional Fund](http://www.sec.gov/Archives/edgar/data/1060517/000119312526021305/d68581dex9914iv.htm) 20/ |
| (15) | [Code of Ethics for Registrant, UBS Asset Management (Americas) LLC (formerly known as UBS Asset Management (Americas) Inc.) (investment advisor) and UBS Asset Management (US) Inc. (principal underwriter)](http://www.sec.gov/Archives/edgar/data/0001060517/000119312525188786/d45332dex9915.htm) 19/ |
| (16) | [Powers of Attorney for Messrs. Burt and Garil and Ms. Higgins](http://www.sec.gov/Archives/edgar/data/930007/000110465907085655/a07-26352_1ex99d16a.htm) 40/ |
| (17) | [Power of Attorney for Ms. Kilkeary](http://www.sec.gov/Archives/edgar/data/1060517/000119312518077501/d508988dex9918.htm) 14/ |
| (18) | [Powers of Attorney for Ms. Breen and Mr. Malpass](http://www.sec.gov/Archives/edgar/data/1060517/000119312523221615/d497787dex9918.htm) 39/ |
| (19) | [Power of Attorney for Mr. Carver](http://www.sec.gov/Archives/edgar/data/930007/000110465923121298/tm2320713d1_ex99-15xd.htm)41/ |
| \* | Formerly known as UBS Global Asset Management (US) Inc. |
| 1/ | Incorporated by reference from Pre-Effective Amendment No. 1 to the Registrant's registration statement, SEC File No. 333-52965, filed July 29, 1998. |
| 2/ | Incorporated by reference from Post-Effective Amendment No. 3 to the Registrant's registration statement, SEC File No. 333-52965, filed September 1, 1999. |
| 3/ | Incorporated by reference from Post-Effective Amendment No. 10 to the Registrant's registration statement, SEC File No. 333-52965, filed August 29, 2001. |
| 4/ | Incorporated by reference from Post-Effective Amendment No. 11 to the Registrant's registration statement, SEC File No. 333-52965, filed April 30, 2002. |
| 5/ | Incorporated by reference from Post-Effective Amendment No. 16 to the Registrant's registration statement, SEC File No. 333-52965, filed April 28, 2004. |
| 6/ | Incorporated by reference from Post-Effective Amendment No. 22 to the Registrant's registration statement, SEC File No. 333-52965, filed August 28, 2007. |
| 7/ | Incorporated by reference from Post-Effective Amendment No. 26 to the Registrant's registration statement, SEC File No. 333-52965, filed October 3, 2008. |
| 8/ | Incorporated by reference from Post-Effective Amendment No. 40 to the Registrant's registration statement, SEC File No. 333-52965, filed August 27, 2015. |
| 9/ | Incorporated by reference from Post-Effective Amendment No. 42 to the Registrant's registration statement, SEC File No. 333-52965, filed October 16, 2015. |
| 10/ | Incorporated by reference from Post-Effective Amendment No. 44 to the Registrant's registration statement, SEC File No. 333-52965, filed December 30, 2015. |
| 11/ | Incorporated by reference from Post-Effective Amendment No. 50 to the Registrant's registration statement, SEC File No. 333-52965, filed June 23, 2016. |
| 12/ | Incorporated by reference from Post-Effective Amendment No. 52 to the Registrant's registration statement, SEC File No. 333-52965, filed August 26, 2016. |
| 13/ | Incorporated by reference from Amendment No. 55 to the Registrant's registration statement, SEC File No. 811-08767, filed November 16, 2016. |

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| | |
|:---|:---|
| 14/ | Incorporated by reference from Post-Effective Amendment No. 56 to the Registrant's registration statement, SEC File No. 333-52965, filed March 9, 2018. |
| 15/ | Incorporated by reference from Post-Effective Amendment No. 65 to the Registrant's registration statement, SEC File No. 333-52965, filed December 23, 2019. |
| 16/ | Incorporated by reference from Post-Effective Amendment No. 74 to the Registrant's registration statement, SEC File No. 333-52965, filed December 20, 2023. |
| 17/ | Incorporated by reference from Post-Effective Amendment No. 77 to the Registrant's registration statement, SEC File No. 333-52965, filed March 11, 2024. |
| 18/ | Incorporated by reference from Post-Effective Amendment No. 95 to the Registrant's registration statement, SEC File No. 333-52965, filed August 28, 2024. |
| 19/ | Incorporated by reference from Post-Effective Amendment No. 80 to the Registrant's registration statement, SEC File No. 333-52965, filed August 26, 2025. |
| 20/ | Incorporated by reference from Post-Effective Amendment No. 102 to the Registrant's registration statement, SEC File No. 333-52965, filed January 23, 2026. |
| 21/ | Incorporated by reference from Post-Effective Amendment No. 21 to the Registrant's registration statement, SEC File No. 333-52965, filed June 14, 2007. |
| 22/ | Incorporated by reference from Post-Effective Amendment No. 23 to the Registrant's registration statement, SEC File No. 333-52965, filed June 27, 2008. |
| 23/ | Incorporated by reference from Post-Effective Amendment No. 27 to the Registrant's registration statement, SEC File No. 333-52965, filed August 27, 2009. |
| 24/ | Incorporated by reference from Post-Effective Amendment No. 29 to the Registrant's registration statement, SEC File No. 333-52965, filed August 27, 2010. |
| 25/ | Incorporated by reference from Articles IV, VI and X of Registrant's Trust Instrument and from Articles VI and IX of Registrant's By-Laws. |
| 26/ | Incorporated by reference from Amendment No. 56 to the Registrant's registration statement, SEC File No. 811-08767, filed August 25, 2017. |
| 27/ | Incorporated by reference from Post-Effective Amendment No. 61 to the Registrant's registration statement, SEC File No. 333-52965, filed May 24, 2018. |
| 28/ | Incorporated by reference from Post-Effective Amendment No. 8 to the Registrant's registration statement, SEC File No. 333-52965, filed August 25, 2000. |
| 29/ | Incorporated by reference from Post-Effective Amendment No. 69 to the Registrant's registration statement, SEC File No. 333-52965, filed August 27, 2021. |
| 30/ | Incorporated by reference from Post-Effective Amendment No. 48 to the Registrant's registration statement, SEC File No. 333-52965, filed March 28, 2016. |
| 31/ | Incorporated by reference from Post-Effective Amendment No. 78 to the Registrant's registration statement, SEC File No. 333-52965, filed March 22, 2024. |
| 32/ | Incorporated by reference from Post-Effective Amendment No. 76 to the Registrant's registration statement, SEC File No. 333-52965, filed January 22, 2024. |
| 33/ | Incorporated by reference from Post-Effective Amendment No. 17 to the Registrant's registration statement, SEC File No. 333-52965, filed August 30, 2004. |
| 34/ | Incorporated by reference from Post-Effective Amendment No. 31 to the registration statement of UBS RMA Money Fund Inc., SEC File No. 2-78309, filed August 28, 1998. |
| 35/ | Incorporated by reference from Post-Effective Amendment No. 58 to the registration statement of UBS Master Series, Inc., SEC File No. 33-2524, filed June 30, 2011. |
| 36/ | Incorporated by reference from Post-Effective Amendment No. 64 to the Registrant's registration statement, SEC File No. 333-52965, filed August 28, 2018. |
| 37/ | Incorporated by reference from Amendment No. 97 to the Registrant's registration statement, SEC File No. 811-08767, filed August 22, 2025. |
| 38/ | Incorporated by reference from Amendment No. 63 to the Registrant's registration statement, SEC File No. 811-08767, filed August 24, 2018. |
| 39/ | Incorporated by reference from Post-Effective Amendment No. 71 to the Registrant's registration statement, SEC File No. 333-52965, filed August 25, 2023. |
| 40/ | Incorporated by reference from Post-Effective Amendment No. 26 to the registration statement of PACE Select Advisors Trust, SEC File No. 33-87254, filed November 28, 2007. |

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|:---|:---|
| 41/ | Incorporated by reference from Post-Effective Amendment No. 62 to the registration statement of PACE Select Advisors Trust, SEC File No. 33-87254, filed November 27, 2023. |
| Item 29. | Persons Controlled by or under Common Control with Registrant |
|  | None. |
| Item 30. | Indemnification |

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Section 2 of Article IX of the Trust Instrument, as amended ("Trust Instrument"), "Indemnification," provides that the appropriate series of the Registrant will indemnify the trustees and officers of the Registrant to the fullest extent permitted by law against claims and expenses asserted against or incurred by them by virtue of being or having been a trustee or officer; provided that no such person shall be indemnified where there has been an adjudication or other determination, as described in Article IX, that such person is liable to the Registrant or its shareholders by reason of willful misfeasance, bad faith, gross negligence or reckless disregard of the duties involved in the conduct of his or her office, or did not act in good faith in the reasonable belief that his action was in the best interest of the Registrant. Section 2 of Article IX also provides that the Registrant may maintain insurance policies covering such rights of indemnification.

Additionally, "Limitation of Liability" in Section 1 of Article IX of the Trust Instrument provides that the trustees or officers of the Registrant shall not be personally liable to any person extending credit to, contracting with or having a claim against the Registrant or a particular series; and that, provided they have exercised reasonable care and have acted under the reasonable belief that their actions are in the best interest of the Registrant, the trustees and officers shall not be liable for neglect or wrongdoing by them or by any officer, agent, employee, investment advisor or independent contractor of the Registrant.

Section 9 (except as otherwise noted) of each (i) Investment Advisory and Administration Contract with respect to UBS Liquid Assets Government Fund; (ii) Section 8 of the Administration Contract with respect to UBS Select Treasury Institutional Fund, UBS Select Treasury Preferred Fund, UBS Prime Reserves Fund, UBS Prime Preferred Fund, UBS Select Government Institutional Fund, UBS Select Government Preferred Fund, UBS Select 100% US Treasury Institutional Fund, UBS Select 100% US Treasury Preferred Fund, and Cantor Fitzgerald Government Money Market Fund; (iii) Section 8 of the Administration Contract with respect to UBS RMA Government Money Market Fund; (iv) Management Contract for Limited Purpose Cash Investment Fund; and (v) Section 11 of the Investment Advisory and Administration Contract with respect to UBS Ultra Short Income Fund (each, an "Advisory/Administration Contract"), with UBS Asset Management (Americas) LLC (formerly, UBS Asset Management (Americas) Inc. and UBS Global Asset Management (Americas) Inc.) ("UBS AM") provides that UBS AM shall not be liable for any error of judgment or mistake of law or for any loss suffered by any series ("Fund") of the Registrant in connection with the matters to which the Advisory/Administration Contract relates, except for a loss resulting from the willful misfeasance, bad faith, or gross negligence of UBS AM in the performance of its duties or from its reckless disregard of its obligations and duties under the Advisory/Administration Contract. Section 10, 11, or 12 of each Advisory/Administration Contract provides that the Trustees shall not be liable for any obligations of the Trust or any series under the Advisory/Administration Contract and that UBS AM shall look only to the assets and property of the Registrant in settlement of such right or claim and not to the assets and property of the trustees.

Section 9 of each Principal Underwriting Contract or Distribution Contract provides that the Trust will indemnify UBS Asset Management (US) Inc. (formerly, UBS Global Asset Management (US) Inc.) ("UBS AM (US)") and its officers, directors and controlling persons against all liabilities arising from any alleged untrue statement of material fact in the Registration Statement or from any alleged omission to state in the Registration Statement a material fact required to be stated in it or necessary to make the statements in it, in light of the circumstances under which they were made, not misleading, except insofar as liability arises from untrue statements or omissions made in reliance upon and in conformity with information furnished by UBS AM (US) to the Trust for use in the Registration Statement; and provided that this indemnity agreement shall not protect any such persons against liabilities arising by reason of their bad faith, gross negligence or willful misfeasance; and shall not inure to the benefit of any such persons unless a court of competent jurisdiction or controlling precedent determines that such result is not against public policy as expressed in the Securities Act of 1933, as amended (the "1933 Act"). Section 9 of each Principal Underwriting Contract or Distribution Contract also provides that UBS AM (US) agrees to indemnify, defend and hold the Trust, its officers and trustees free and harmless of any claims arising out of any alleged untrue statement or any alleged omission of material fact contained in information furnished by UBS AM (US) for use in the Registration Statement or arising out of an agreement between UBS AM (US) and any retail dealer, or arising out of supplementary literature or advertising used by UBS AM (US) in connection with the Contract.

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Section 15 or 16 of each Principal Underwriting Contract and Section 10 of the Distribution Contract contain provisions similar to Section 10, 11, or 12 of the Advisory/Administration Contracts, with respect to UBS AM (US).

Section 9, 14, or 15 of each Dealer Agreement, and Section 12 of the Mutual Fund Account Administration Agreement, contains provisions similar to those of Section 9 of the Principal Underwriting Contract or Distribution Contract with respect to the applicable dealer.

The Exclusive Placement Agent Agreement contains provisions similar to those of Section 9 of the Principal Underwriting Contract or Distribution Contract with respect to the applicable dealer.

Insofar as indemnification for liabilities arising under the 1933 Act may be provided to trustees, officers and controlling persons of the Registrant, pursuant to the foregoing provisions or otherwise, the Registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the 1933 Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a trustee, officer or controlling person of the Registrant in connection with the successful defense of any action, suit or proceeding or payment pursuant to any insurance policy) is asserted against the Registrant by such trustee, officer or controlling person in connection with the securities being registered, the Registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the 1933 Act and will be governed by the final adjudication of such issue.

Item 31. Business and Other Connections of Investment Advisor

UBS AM, a Delaware limited liability company, is a registered investment advisor and is an indirect wholly owned subsidiary of UBS Group AG. UBS AM is primarily engaged in the investment advisory and financial services business. Set forth below in alphabetical order is a list of certain executive officers and each board manager of UBS AM indicating each business, profession, vocation or employment of a substantial nature in which each such person has been engaged during the last two fiscal years. (While each board manager is named below, the list of executive officers has been shortened as the full list would be very long and contain names of persons whose functions are unrelated to the Registrant.)

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| | | |
|:---|:---|:---|
| Name | Position(s) Held with<br> UBS AM | Other Substantial Business,<br> Profession, Vocation or<br> Employment |
| Mark E. Carver | Executive Director and Head of Product Structuring Americas | President and Director (Board) of UBS Asset Management Trust Company |
| Ralph Mattone | Treasurer, Chief Financial Officer, and Managing Director | Chief Financial Officer, Managing Director and Regional Group Controller of UBS Securities LLC and UBS Financial Services Inc.; Treasurer and Chief Financial Officer of UBS Asset Management Trust Company |
| Leesa Merrill | Executive Director | Chief Compliance Officer of certain UBS registered fund families; Executive Director of UBS AM (US) |
| Barry Mullen | Executive Director and Chief Compliance Officer — Americas | Executive Director and Chief Compliance Officer of UBS AM (US); Chief Compliance Officer and Trust Officer of UBS Asset Management Trust Company |

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| | | |
|:---|:---|:---|
| James Poucher | Manager (Board), Managing Director, President, Chief Executive Officer, and Head of UBS Asset Management Americas | Global Head of UBS Asset Management Operations; Trust Officer of UBS Asset Management Trust Company |
| Robert Sabatino | Managing Director and Global Head of Liquidity Portfolio Management | Trust Officer of UBS Asset Management Trust Company |
| Eric Sanders | Director (Non-Board), Associate General Counsel and Assistant Secretary | Director (Non-Board), Associate General Counsel and Assistant Secretary of UBS AM (US) |
| Philip Stacey | Managing Director, Head of Legal – UBS AM Americas, and Assistant Secretary | Managing Director, Head of Legal – UBS AM Americas, and Assistant Secretary of UBS AM (US); Assistant Secretary and Trust Officer of UBS Asset Management Trust Company |
| Omar Tariq | Manager and Head of Investment Accounting | None |
| David Walczak | Managing Director and Head of US Money Markets Portfolio Management | Trust Officer of UBS Asset Management Trust Company |
| Keith A. Weller | Executive Director, Deputy General Counsel, Head of Registered Funds Legal, and Assistant Secretary | Executive Director, Deputy General Counsel, Head of Registered Funds Legal, and Assistant Secretary of UBS AM (US) |
| Shelley Wong-Chassine | Manager and Business Manager | None |
| Meggan Zabel | Manager (Board) | Head of Investments Business Management; Director (Board) of UBS Asset Management Trust Company |

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Messrs. Mullen, Sanders, Stacey and Weller and Ms. Merrill are employed by UBS Business Solutions US LLC.

Item 32. Principal Underwriter/Placement Agent

(a) UBS AM (US) serves as principal underwriter or placement agent for the following other investment companies:

CREDIT SUISSE COMMODITY STRATEGY FUNDS

CREDIT SUISSE OPPORTUNITY FUNDS

CREDIT SUISSE TRUST

CREDIT SUISSE ASSET MANAGEMENT INCOME FUND, INC.

CREDIT SUISSE HIGH YIELD BOND FUND

MASTER TRUST

PACE SELECT ADVISORS TRUST

SMA RELATIONSHIP TRUST

THE UBS FUNDS

UBS INVESTMENT TRUST

(b) UBS AM (US) is the Registrant's principal underwriter or placement agent. The directors and certain principal executive officers of UBS AM (US), their principal business addresses, and their positions and offices with UBS AM (US), are identified below along with those directors and officers of UBS AM (US) who also serve as trustees or officers of the Registrant. (While each board director is named below, the list of executive officers has been shortened as the full list would be very long and contain names of persons whose functions are unrelated to the Registrant.)

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| | | |
|:---|:---|:---|
| Name and Address | Position(s) Held<br> With Registrant | Positions and Offices with Underwriter or<br> Dealer |
| Michael Belasco\* | None | Board Director, President, Chief Executive Officer, Managing Director, and Head of Americas Wholesale and Wealth Management Client Coverage of UBS AM (US) |
| Rose Ann Bubloski\*\*\* | Vice President and Assistant Treasurer | None |
| Mark E. Carver\* | President | Executive Director of UBS AM (US) |
| Kathleen Horan\*\*\* | None | Treasurer and Chief Financial Officer of UBS AM (US) |
| Joanne M. Kilkeary\*\*\* | Vice President, Treasurer and Chief Financial Officer | None |
| Leesa Merrill\*\* | Chief Compliance Officer | Executive Director of UBS AM (US) |
| Barry Mullen\* | None | Executive Director and Chief Compliance Officer – Americas of UBS AM (US) |
| Stephen Murphy\*\*\*\* | None | Board Director of UBS AM (US) |
| Robert Sabatino\*\* | Vice President | None |
| Eric Sanders\*\*\*\*\* | Vice President and Assistant Secretary | Director (Non-Board), Associate General Counsel and Assistant Secretary of UBS AM (US) |
| Philip Stacey\*\* | Vice President and Assistant Secretary | Managing Director, Head of Legal – UBS AM Americas, and Assistant Secretary of UBS AM (US); Assistant Secretary and Trust Officer of UBS Asset Management Trust Company |
| David Walczak\*\* | Vice President | None |
| Keith A. Weller\*\* | Vice President and Secretary | Executive Director, Deputy General Counsel, Head of Registered Funds Legal, and Assistant Secretary of UBS AM (US) |
| Meggan Zabel\*\* | None | Board Director of UBS AM (US) |

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\* This person's business address is 1285 Avenue of the Americas, New York, NY 10019.

\*\* This person's business address is One North Wacker Drive, Chicago, IL 60606.

\*\*\* This person's business address is 1000 Harbor Boulevard, Weehawken, NJ 07086.

\*\*\*\* This person's business address is 555 California Street, 36th Floor, San Francisco, CA 94104.

\*\*\*\*\* This person's business address is 11 Madison Avenue, New York, NY 10010.

(c) None.

Item 33. Location of Accounts and Records

The books and other documents required (i) by paragraphs (b)(4), (c) and (d) of Rule 31a-1 and (ii) by paragraphs (a)(3), (a)(4), (a)(5), (c) and (e) of Rule 31a-2 under the Investment Company Act of 1940 are maintained in the physical possession of UBS AM, at 1285 Avenue of the Americas, New York, NY 10019, 1000 Harbor Boulevard,

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Weehawken, NJ 07086, and One North Wacker Drive, Chicago, IL 60606. Certain information required by Rule 31a-1(b)(1) to be maintained by a money market fund is maintained in the possession of UBS AM, at 1285 Avenue of the Americas, New York, NY 10019, 1000 Harbor Boulevard, Weehawken, NJ 07086, and One North Wacker Drive, Chicago, IL 60606. All other accounts, books and documents required by Rule 31a-1 are maintained in the physical possession of Registrant's transfer agent and custodian.

Item 34. Management Services

Not applicable.

Item 35. Undertakings

Not applicable.

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**SIGNATURES** 

Pursuant to the requirements of the Investment Company Act of 1940, the Registrant has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Chicago and State of Illinois, on the 13th day of March, 2026.

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| | |
|:---|:---|
|  **UBS SERIES FUNDS** | **UBS SERIES FUNDS** |
| By: | /s/ Keith A. Weller |
|  | Keith A. Weller |
|  | Vice President and Secretary |

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