0001378842-21-000007.txt : 20211123 0001378842-21-000007.hdr.sgml : 20211123 20211123164010 ACCESSION NUMBER: 0001378842-21-000007 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20211119 FILED AS OF DATE: 20211123 DATE AS OF CHANGE: 20211123 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Brown Christopher CENTRAL INDEX KEY: 0001378842 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-39675 FILM NUMBER: 211439046 MAIL ADDRESS: STREET 1: C/O OPTIUM CORPORATION STREET 2: 500 HORIZON DRIVE, SUITE 500 CITY: CHALFONT STATE: PA ZIP: 18914 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 4 1 wf-form4_163770358870129.xml FORM 4 X0306 4 2021-11-19 0 0000866291 ALLEGRO MICROSYSTEMS, INC. ALGM 0001378842 Brown Christopher 955 PERIMETER ROAD MANCHESTER NH 03103 0 1 0 0 SVP and General Counsel Common Stock 2021-11-19 4 S 0 2132 32.59 D 144988 D The sales reported in this Form 4 were effected to cover applicable withholding taxes related to the vesting of RSUs pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 2, 2020. /s/ Christopher Brown 2021-11-23