<SEC-DOCUMENT>0000950170-25-076064-index.html : 20250522
<SEC-HEADER>0000950170-25-076064.hdr.sgml : 20250522
<ACCEPTANCE-DATETIME>20250522090140
ACCESSION NUMBER:		0000950170-25-076064
CONFORMED SUBMISSION TYPE:	SD
PUBLIC DOCUMENT COUNT:		3
<RULE>
<RULE-NAME>13p-1
<ITEM>
<ITEM-NUMBER>1.01
<ITEM-PERIOD>20241231
</ITEM>
<ITEM>
<ITEM-NUMBER>1.02
<ITEM-PERIOD>20241231
</ITEM>
</RULE>
FILED AS OF DATE:		20250522
DATE AS OF CHANGE:		20250522

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ALLEGRO MICROSYSTEMS, INC.
		CENTRAL INDEX KEY:			0000866291
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				462405937
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		SD
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39675
		FILM NUMBER:		25974909

	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>SD
<SEQUENCE>1
<FILENAME>conflict_minerals_2024.htm
<DESCRIPTION>SD
<TEXT>
Document 1 - file: conflict_minerals_2024.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1.01
<SEQUENCE>2
<FILENAME>algm-ex1_01.htm
<DESCRIPTION>EX-1.01
<TEXT>
Document 2 - file: algm-ex1_01.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>img143367665_0.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: img143367665_0.jpg

</DOCUMENT>
</SEC-DOCUMENT>