<SEC-DOCUMENT>0001193125-20-280351-index.html : 20201029
<SEC-HEADER>0001193125-20-280351.hdr.sgml : 20201029
<ACCEPTANCE-DATETIME>20201029060552
ACCESSION NUMBER:		0001193125-20-280351
CONFORMED SUBMISSION TYPE:	8-A12B
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20201029
DATE AS OF CHANGE:		20201029

FILER:

	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:			0331

	FILING VALUES:
		FORM TYPE:		8-A12B
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39675
		FILM NUMBER:		201270329

	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>8-A12B
<SEQUENCE>1
<FILENAME>d25100d8a12b.htm
<DESCRIPTION>8-A12B
<TEXT>
Document 1 - file: d25100d8a12b.htm

</DOCUMENT>
</SEC-DOCUMENT>