<SEC-DOCUMENT>0001145549-19-052651-index.html : 20191223
<SEC-HEADER>0001145549-19-052651.hdr.sgml : 20191223
<ACCEPTANCE-DATETIME>20191223154112
ACCESSION NUMBER:		0001145549-19-052651
CONFORMED SUBMISSION TYPE:	NPORT-P
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20191031
FILED AS OF DATE:		20191223
PERIOD START:           	20191031

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AMERICAN CENTURY MUTUAL FUNDS, INC.
		CENTRAL INDEX KEY:			0000100334
		IRS NUMBER:				446006315
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		NPORT-P
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-00816
		FILM NUMBER:		191305670

	BUSINESS ADDRESS:	
		STREET 1:		4500 MAIN STREET
		CITY:			KANSAS CITY
		STATE:			MO
		ZIP:			64111
		BUSINESS PHONE:		816-531-5575

	MAIL ADDRESS:	
		STREET 1:		4500 MAIN STREET
		CITY:			KANSAS CITY
		STATE:			MO
		ZIP:			64111

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AMERICAN CENTURY MUTUAL FUNDS INC
		DATE OF NAME CHANGE:	19970107

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TWENTIETH CENTURY INVESTORS INC
		DATE OF NAME CHANGE:	19920703
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000100334
<SERIES-ID>S000006196
<SERIES-NAME>ADAPTIVE EQUITY FUND
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000017065
<CLASS-CONTRACT-NAME>INVESTOR CLASS
<CLASS-CONTRACT-TICKER-SYMBOL>AMVIX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000017066
<CLASS-CONTRACT-NAME>I CLASS
<CLASS-CONTRACT-TICKER-SYMBOL>AVDIX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000174977
<CLASS-CONTRACT-NAME>A CLASS
<CLASS-CONTRACT-TICKER-SYMBOL>AVDAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000174978
<CLASS-CONTRACT-NAME>R CLASS
<CLASS-CONTRACT-TICKER-SYMBOL>AVDRX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000174979
<CLASS-CONTRACT-NAME>R6 CLASS
<CLASS-CONTRACT-TICKER-SYMBOL>AVDMX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>NPORT-P
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
</SEC-DOCUMENT>