<SEC-DOCUMENT>0001752724-23-239295-index.html : 20231027
<SEC-HEADER>0001752724-23-239295.hdr.sgml : 20231027
<ACCEPTANCE-DATETIME>20231027092851
ACCESSION NUMBER:		0001752724-23-239295
CONFORMED SUBMISSION TYPE:	NPORT-P
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20230831
FILED AS OF DATE:		20231027
DATE AS OF CHANGE:		20231027
PERIOD START:           	20231130

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIDELITY MT VERNON STREET TRUST
		CENTRAL INDEX KEY:			0000707823
		IRS NUMBER:				000000000
		FISCAL YEAR END:			1130

	FILING VALUES:
		FORM TYPE:		NPORT-P
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-03583
		FILM NUMBER:		231352688

	BUSINESS ADDRESS:	
		STREET 1:		245 SUMMER STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210
		BUSINESS PHONE:		617-563-7000

	MAIL ADDRESS:	
		STREET 1:		245 SUMMER STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FIDELITY GROWTH COMPANY FUND
		DATE OF NAME CHANGE:	19910110

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FIDELITY MERCURY FUND
		DATE OF NAME CHANGE:	19861216
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000707823
<SERIES-ID>S000007120
<SERIES-NAME>Fidelity New Millennium Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000019449
<CLASS-CONTRACT-NAME>Fidelity New Millennium Fund
<CLASS-CONTRACT-TICKER-SYMBOL>FMILX
</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>
<DOCUMENT>
<TYPE>NPORT-EX
<SEQUENCE>2
<FILENAME>QTLY_300_20230831.htm
<TEXT>
Document 2 - file: QTLY_300_20230831.htm

</DOCUMENT>
</SEC-DOCUMENT>