The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F COVER PAGE

OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8

Report for the Calendar Year or Quarter Ended: 03-31-2025
Check here if Amendment    Amendment Number:
This Amendment (Check only one.):    is a restatement.
   adds new holdings entries.
Institutional Investment Manager Filing this Report:
Name: UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC
Address: ONE NORTH WACKER DRIVE
CHICAGO, IL  60606
Form 13F File Number: 028-02682
CRD Number (if applicable):
SEC File Number (if applicable): 028-02682

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:
Name: BARRY J. MULLEN
Title: COMPLIANCE HEAD, UBS AM BUSINESS UNIT OF UBS AM AMERICAS LLC
Phone: 212-882-5367
Signature, Place, and Date of Signing:
/S/ BARRY J. MULLEN NEW YORK NY 05-15-2025
[Signature] [City, State] [Date]
Report Type (Check only one.):
   13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.)
   13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).)
X 13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)
List of Other Managers Reporting for this Manager:
[If there are no entries in this list, omit this section.]
Name Form 13F File No. CRD No. (if applicable) SEC File No. (if applicable) CIK
AVIVA INVESTORS CANADA, INC.     801-131405  
J.P. MORGAN INVESTMENT MANAGEMENT, INC. 028-11937   801-21011  
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT, LLC 028-05792   801-24241  
LOS ANGELES CAPITAL MANAGEMENT AND EQUITY RESEARCH, INC. 028-10229   801-60934  
MONDRIAN INVESTMENT PARTNERS LIMITED 028-11450   801-37702  
NEUBERGER BERMAN INVESTMENT ADVISERS LLC 028-17085   801-61751  
NOMURA CORPORATE RESEARCH AND ASSET MANAGEMENT INC. 028-13982   801-38965  
PCJ INVESTMENT COUNSEL LTD 028-12690   801-80724  
PACIFIC INVESTMENT MANAGEMENT COMPANY LLC 028-10952   801-48187  
RIVERBRIDGE PARTNERS, LLC 028-05655   801-57432  
ROBERT W. BAIRD & CO. INCORPORATED (CHAUTAUQUA CAPITAL MANAGEMENT, LLC) 028-01911   801-7571  
WILLIAM BLAIR & COMPANY L.L.C. 028-17022   801-688  
KETTLE HILL CAPITAL MANAGEMENT, LLC 028-17689   801-77815  
JACOBS LEVY EQUITY MANAGEMENT, INC. 028-03059   801-28257  
ALLSPRING GLOBAL INVESTMENTS 028-04413   801-21122  
INSIGHT NORTH AMERICA 028-21789   801-69964  
CALAMOS ADVISORS LLC 028-11166   801-29688  
RWC ASSET ADVISORS (US) LLC 028-19400   801-77698  
LAZARD ASSET MANAGEMENT LLC 028-10469   801-61701  
MAGNETAR ASSET MANAGEMENT, LLC 028-02682   801-108902  
ARGA INVESTMENT MANAGEMENT LP 028-15430   801-77018  
WELLINGTON MANAGEMENT CO. 028-16899   801-15908  
MASSACHUSETTS FINANCIAL SERVICES CO. 028-04968   801-27864  
ARTISAN PARTNERS LIMITED PARTNERSHIP 028-13578   801-70101  
GQG PARTNERS LLC 028-17876   801-107734  
POLEN CAPITAL MANAGEMENT LLC 028-03687   801-15180  
BROWN BROTHERS HARRIMAN & CO. 028-00408   801-60256  
ELECTRON CAPITAL PARTNERS 028-16049   801-79375  
HOTCHKIS & WILEY CAPITAL MANAGEMENT 028-10068   801-60512  
VICTORY CAPITAL MANAGEMENT 028-06354   801-46878  
FULCRUM ASSET MANAGEMENT LLP 028-20335   801-72206  
Form 13F Summary Page
Report Summary:
Number of Other Included Managers: 10
Form 13F Information Table Entry Total: 20,404
Form 13F Information Table Value Total: 390,540,811,931
(round to nearest dollar)
List of Other Included Managers:
Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.
[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]
No. Name Form 13F File No. CRD No. (if applicable) SEC File No. (if applicable) CIK
1 UBS Group AG     028-16612  
2 UBS Asset Management Trust Company     028-3900  
7 UBS Asset Management Switzerland AG     028-10396  
8 UBS Asset Management (UK) Ltd.     028-05673  
9 UBS Asset Management Life Ltd.     028-05961  
10 Unified Global Alternatives, a distinct business unit of UBS Asset Management Americas LLC        
11 CIG US, a distict business unit of UBS Asset Management Americas LLC     028-03702  
12 Credit Suisse Fund Management S.A.     028-14783  
13 MultiConcept Fund Management S.A.     028-14772  
14 UBS Fund Management (Switzerland) AG     028-14785