ALLEGRO MICROSYSTEMS, INC.
SEC Filing List

ALGM CIK: 0000866291

Form Type:

Year

Form	Description	Owner/Filer	Filing Agent	Date	Actions
DEF 14A	Definitive proxy statements	Allegro Microsystems, Inc.	DONNELLEY FINANCIAL SOLUTIONS /FA/	06/24/2026	View ... Create Alert Filing info Download PDF Copy Link View XBRL Download CSV
ARS	Annual report to security holders	Allegro Microsystems, Inc.	DONNELLEY FINANCIAL SOLUTIONS /FA/	06/24/2026	View ... Create Alert Filing info Download PDF Copy Link
DEF 14A	Definitive proxy statements	Allegro Microsystems, Inc.	DONNELLEY FINANCIAL SOLUTIONS /FA/	06/24/2026	View ... Create Alert Filing info Download PDF Copy Link View XBRL Download CSV
DEFA14A	Definitive additional proxy soliciting m...	Allegro Microsystems, Inc.	DONNELLEY FINANCIAL SOLUTIONS /FA/	06/24/2026	View ... Create Alert Filing info Download PDF Copy Link
4	Statement of changes in beneficial owner...	White Brian C	DONNELLEY FINANCIAL SOLUTIONS /FA/	06/18/2026	View ... Create Alert Filing info Download PDF Copy Link
8-K	Current report filing	Allegro Microsystems, Inc.	DONNELLEY FINANCIAL SOLUTIONS /FA/	06/18/2026	View ... Create Alert Filing info Download PDF Copy Link View XBRL Download CSV
3	Initial statement of beneficial ownershi...	White Brian C	DONNELLEY FINANCIAL SOLUTIONS /FA/	06/18/2026	View ... Create Alert Filing info Download PDF Copy Link
4	Statement of changes in beneficial owner...	Madormo Richard	DONNELLEY FINANCIAL SOLUTIONS /FA/	06/04/2026	View ... Create Alert Filing info Download PDF Copy Link
144	Filing for proposed sale of securities u...		Fidelity Brokerage Services LLC/FA	06/03/2026	View ... Create Alert Filing info Download PDF Copy Link
SD	Specialized Disclosure Report filed purs...	Allegro Microsystems, Inc.	DONNELLEY FINANCIAL SOLUTIONS /FA/	05/29/2026	View ... Create Alert Filing info Download PDF Copy Link
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