<SEC-DOCUMENT>0001599511-25-000003-index.html : 20250114
<SEC-HEADER>0001599511-25-000003.hdr.sgml : 20250114
<ACCEPTANCE-DATETIME>20250114180556
ACCESSION NUMBER:		0001599511-25-000003
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250114

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NUVEEN SELECT MATURITIES MUNICIPAL FUND
		CENTRAL INDEX KEY:			0000890119
		ORGANIZATION NAME:           	
		IRS NUMBER:				363837799
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			0531

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-87163
		FILM NUMBER:		25530475

	BUSINESS ADDRESS:	
		STREET 1:		333 WEST WACKER DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		3129177200

	MAIL ADDRESS:	
		STREET 1:		333 W WACKER DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NUVEEN INTERMEDIATE OPPORTUNITY MUNICIPAL FUND
		DATE OF NAME CHANGE:	19600201

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Tortoise Investment Management, LLC
		CENTRAL INDEX KEY:			0001599511
		ORGANIZATION NAME:           	
		IRS NUMBER:				201723529
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G

	BUSINESS ADDRESS:	
		STREET 1:		2 WESTCHESTER PARK DRIVE
		STREET 2:		SUITE 215
		CITY:			WHITE PLAINS
		STATE:			NY
		ZIP:			10604
		BUSINESS PHONE:		914-686-0024

	MAIL ADDRESS:	
		STREET 1:		2 WESTCHESTER PARK DRIVE
		STREET 2:		SUITE 215
		CITY:			WHITE PLAINS
		STATE:			NY
		ZIP:			10604
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
</SEC-DOCUMENT>