<SEC-DOCUMENT>0001904082-22-000002-index.html : 20220112
<SEC-HEADER>0001904082-22-000002.hdr.sgml : 20220112
<ACCEPTANCE-DATETIME>20220112190508
ACCESSION NUMBER:		0001904082-22-000002
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20220110
FILED AS OF DATE:		20220112
DATE AS OF CHANGE:		20220112

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			D'Antilio Derek
		CENTRAL INDEX KEY:			0001904082

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39675
		FILM NUMBER:		22527531

	MAIL ADDRESS:	
		STREET 1:		C/O ALLEGRO MICROSYSTEMS, INC.
		STREET 2:		955 PERIMETER ROAD
		CITY:			MANCHESTER
		STATE:			NH
		ZIP:			03103

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ALLEGRO MICROSYSTEMS, INC.
		CENTRAL INDEX KEY:			0000866291
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				462405937
		FISCAL YEAR END:			0325

	BUSINESS ADDRESS:	
		STREET 1:		955 PERIMETER ROAD
		CITY:			MANCHESTER
		STATE:			NH
		ZIP:			03103
		BUSINESS PHONE:		(603) 626-2300

	MAIL ADDRESS:	
		STREET 1:		955 PERIMETER ROAD
		CITY:			MANCHESTER
		STATE:			NH
		ZIP:			03103

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALLEGRO MICROSYSTEMS INC
		DATE OF NAME CHANGE:	19900730
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>wf-form3_164203229415721.xml
<DESCRIPTION>FORM 3
<TEXT>
Document 1 - file: wf-form3_164203229415721.html

Document 1 - RAW XML: wf-form3_164203229415721.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>poa_dantilio.htm
<DESCRIPTION>DANTILIO_POWER OF ATTORNEY
<TEXT>
Document 2 - file: poa_dantilio.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>poa_dantilio001.jpg
<DESCRIPTION>DANTILIO_POA_PG1
<TEXT>
Document 3 - file: poa_dantilio001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>poa_dantilio002.jpg
<DESCRIPTION>DANTILIO_POA_PG2
<TEXT>
Document 4 - file: poa_dantilio002.jpg

</DOCUMENT>
</SEC-DOCUMENT>