<SEC-DOCUMENT>0000950103-24-010788-index.html : 20240725
<SEC-HEADER>0000950103-24-010788.hdr.sgml : 20240725
<ACCEPTANCE-DATETIME>20240725172756
ACCESSION NUMBER:		0000950103-24-010788
CONFORMED SUBMISSION TYPE:	424B5
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20240725
DATE AS OF CHANGE:		20240725

FILER:

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

	FILING VALUES:
		FORM TYPE:		424B5
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-280960
		FILM NUMBER:		241142993

	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>424B5
<SEQUENCE>1
<FILENAME>dp215264_424b5.htm
<DESCRIPTION>FORM 424B5
<TEXT>
Document 1 - file: dp215264_424b5.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-FILING FEES
<SEQUENCE>2
<FILENAME>dp215264_exfilingfees.htm
<DESCRIPTION>EXHIBIT 107
<TEXT>
Document 2 - file: dp215264_exfilingfees.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>image_001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: image_001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>image_002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: image_002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>image_003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: image_003.jpg

</DOCUMENT>
</SEC-DOCUMENT>