<SEC-DOCUMENT>0001104659-20-097065-index.html : 20200820
<SEC-HEADER>0001104659-20-097065.hdr.sgml : 20200820
<ACCEPTANCE-DATETIME>20200820070418
ACCESSION NUMBER:		0001104659-20-097065
CONFORMED SUBMISSION TYPE:	N-PX
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200630
FILED AS OF DATE:		20200820
DATE AS OF CHANGE:		20200820
EFFECTIVENESS DATE:		20200820

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			UBS Series Funds
		CENTRAL INDEX KEY:			0001060517
		IRS NUMBER:				134010447
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0430

	FILING VALUES:
		FORM TYPE:		N-PX
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-08767
		FILM NUMBER:		201118633

	BUSINESS ADDRESS:	
		STREET 1:		C/O UBS ASSET MANAGEMENT (AMERICAS) INC
		STREET 2:		12TH FLOOR 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) INC
		STREET 2:		12TH FLOOR 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>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000002681
<SERIES-NAME>UBS Select Prime Institutional Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000007332
<CLASS-CONTRACT-NAME>UBS Select Prime Institutional Fund
<CLASS-CONTRACT-TICKER-SYMBOL>SELXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000002682
<SERIES-NAME>UBS Select Treasury Institutional Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000007334
<CLASS-CONTRACT-NAME>UBS Select Treasury Institutional Fund
<CLASS-CONTRACT-TICKER-SYMBOL>SETXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000002684
<SERIES-NAME>UBS Liquid Assets Government Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000007336
<CLASS-CONTRACT-NAME>UBS Liquid Assets Government Fund
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000018675
<SERIES-NAME>UBS Tax-Free Reserves Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000051798
<CLASS-CONTRACT-NAME>UBS Tax-Free Reserves Fund
<CLASS-CONTRACT-TICKER-SYMBOL>STFXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000018676
<SERIES-NAME>UBS Select Prime Preferred Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000051799
<CLASS-CONTRACT-NAME>UBS Select Prime Preferred Fund
<CLASS-CONTRACT-TICKER-SYMBOL>SPPXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000018677
<SERIES-NAME>UBS Select Treasury Preferred Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000051800
<CLASS-CONTRACT-NAME>UBS Select Treasury Preferred Fund
<CLASS-CONTRACT-TICKER-SYMBOL>STPXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000018678
<SERIES-NAME>UBS Tax-Free Preferred Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000051801
<CLASS-CONTRACT-NAME>UBS Tax-Free Preferred Fund
<CLASS-CONTRACT-TICKER-SYMBOL>SFPXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000018679
<SERIES-NAME>UBS Select Prime Investor Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000051802
<CLASS-CONTRACT-NAME>UBS Select Prime Investor Fund
<CLASS-CONTRACT-TICKER-SYMBOL>SPIXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000018680
<SERIES-NAME>UBS Select Treasury Investor Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000051803
<CLASS-CONTRACT-NAME>UBS Select Treasury Investor Fund
<CLASS-CONTRACT-TICKER-SYMBOL>STRXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000018681
<SERIES-NAME>UBS Tax-Free Investor Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000051804
<CLASS-CONTRACT-NAME>UBS Tax-Free Investor Fund
<CLASS-CONTRACT-TICKER-SYMBOL>SFRXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000023600
<SERIES-NAME>UBS Select Treasury Capital Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000069432
<CLASS-CONTRACT-NAME>UBS Select Treasury Capital Fund
<CLASS-CONTRACT-TICKER-SYMBOL>STCXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000052306
<SERIES-NAME>UBS Prime Reserves Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000164452
<CLASS-CONTRACT-NAME>UBS Prime Reserves Fund
<CLASS-CONTRACT-TICKER-SYMBOL>UPRXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000052307
<SERIES-NAME>UBS Prime Preferred Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000164453
<CLASS-CONTRACT-NAME>UBS Prime Preferred Fund
<CLASS-CONTRACT-TICKER-SYMBOL>UPPXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000052308
<SERIES-NAME>UBS Prime Investor Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000164454
<CLASS-CONTRACT-NAME>UBS Prime Investor Fund
<CLASS-CONTRACT-TICKER-SYMBOL>UPIXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000053131
<SERIES-NAME>UBS Select Government Institutional Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000167199
<CLASS-CONTRACT-NAME>UBS Select Government Institutional Fund
<CLASS-CONTRACT-TICKER-SYMBOL>SEGXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000053132
<SERIES-NAME>UBS Select Government Preferred Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000167200
<CLASS-CONTRACT-NAME>UBS Select Government Preferred Fund
<CLASS-CONTRACT-TICKER-SYMBOL>SGPXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000053133
<SERIES-NAME>UBS Select Government Capital Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000167201
<CLASS-CONTRACT-NAME>UBS Select Government Capital Fund
<CLASS-CONTRACT-TICKER-SYMBOL>SGKXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000053134
<SERIES-NAME>UBS RMA Government Money Market Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000167202
<CLASS-CONTRACT-NAME>UBS RMA Government Money Market Fund
<CLASS-CONTRACT-TICKER-SYMBOL>RMGXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000053135
<SERIES-NAME>UBS Select Government Investor Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000167203
<CLASS-CONTRACT-NAME>UBS Select Government Investor Fund
<CLASS-CONTRACT-TICKER-SYMBOL>SGEXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000056215
<SERIES-NAME>Limited Purpose Cash Investment Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000176976
<CLASS-CONTRACT-NAME>Limited Purpose Cash Investment Fund
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000061955
<SERIES-NAME>UBS Ultra Short Income Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000200717
<CLASS-CONTRACT-NAME>Class A
<CLASS-CONTRACT-TICKER-SYMBOL>USIAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000200718
<CLASS-CONTRACT-NAME>Class P
<CLASS-CONTRACT-TICKER-SYMBOL>USIPX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000200719
<CLASS-CONTRACT-NAME>Class I
<CLASS-CONTRACT-TICKER-SYMBOL>USDIX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000067418
<SERIES-NAME>UBS Select ESG Prime Preferred Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000216775
<CLASS-CONTRACT-NAME>UBS Select ESG Prime Preferred Fund:
<CLASS-CONTRACT-TICKER-SYMBOL>SSPXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000067419
<SERIES-NAME>UBS Select ESG Prime Investor Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000216776
<CLASS-CONTRACT-NAME>UBS Select ESG Prime Investor Fund
<CLASS-CONTRACT-TICKER-SYMBOL>SEIXX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0001060517
<SERIES-ID>S000067420
<SERIES-NAME>UBS Select ESG Prime Institutional Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000216777
<CLASS-CONTRACT-NAME>UBS Select ESG Prime Institutional Fund
<CLASS-CONTRACT-TICKER-SYMBOL>SGIXX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-PX
<SEQUENCE>1
<FILENAME>tm2024354d1_npx.htm
<DESCRIPTION>N-PX
<TEXT>
Document 1 - file: tm2024354d1_npx.htm

</DOCUMENT>
</SEC-DOCUMENT>