ALGMNasdaq SEC EDGAR

ALLEGRO MICROSYSTEMS, INC.

Semiconductors & Related Devices·MANCHESTER, NH·FY end 03/31·CIK 866291

Overview Financials Compensation Governance Insiders Filings

Net 180d

-$3.3M

0 buys / 8 sales

Open-market buys

0 transactions

Open-market sales

$3.3M

8 transactions

Cluster windows

0 buy / 0 sell

Insider transaction timeline

2-year window · 26 buys · 36 sales · dot size = transaction value

AcquisitionsSalesCluster window (≥2 sales / month)

Form 4 transactions

Showing 30 of 62

Date	Insider	Type	Shares	Value
2026-03-24	Madormo RichardSVP, Worldwide Sales	Disposed	6,498	-$211.7K
2026-03-24	Madormo RichardSVP, Worldwide Sales	Disposed	6,498	-$211.7K
2026-03-02	Briansky SharonSVP, GC and Secretary	Sale	9,727	-$340.4K
2026-03-02	Hagen ErinSVP, CHRO	Sale	2,598	-$90.9K
2026-03-02	Hagen ErinSVP, CHRO	Sale	2,598	-$90.9K
2026-03-02	Briansky SharonSVP, GC and Secretary	Sale	9,727	-$340.4K
2026-02-27	D'Antilio DerekEVP, CFO & Treasurer	Tax withhold	9,995	-$364.5K
2026-02-27	Briansky SharonSVP, GC and Secretary	Tax withhold	9,107	-$332.1K
2026-02-27	Hagen ErinSVP, CHRO	Tax withhold	1,996	-$72.8K
2026-02-27	Hagen ErinSVP, CHRO	Tax withhold	1,996	-$72.8K
2026-02-27	D'Antilio DerekEVP, CFO & Treasurer	Tax withhold	9,995	-$364.5K
2026-02-27	Briansky SharonSVP, GC and Secretary	Tax withhold	9,107	-$332.1K
2026-02-17	Briansky SharonSVP, GC and Secretary	Sale	9,258	-$384.8K
2026-02-17	Briansky SharonSVP, GC and Secretary	Sale	9,258	-$384.8K
2026-02-13	Briansky SharonSVP, GC and Secretary	Tax withhold	8,991	-$381.0K
2026-02-13	D'Antilio DerekEVP, CFO & Treasurer	Tax withhold	17,808	-$754.7K
2026-02-13	D'Antilio DerekEVP, CFO & Treasurer	Tax withhold	17,808	-$754.7K
2026-02-13	Briansky SharonSVP, GC and Secretary	Tax withhold	8,991	-$381.0K
2026-02-02	Kent IanSVP, Global Operations	Award	9,183	—
2026-02-02	Kent IanSVP, Global Operations	Award	9,183	—
2025-12-10	Briansky SharonSVP, GC and Secretary	Sale	27,873	-$836.2K
2025-12-10	Briansky SharonSVP, GC and Secretary	Sale	27,873	-$836.2K
2025-11-11	Coleman TroySVP, General Manager, Products	Award	73,530	—
2025-11-11	Coleman TroySVP, General Manager, Products	Award	73,530	—
2025-08-22	Webster Roald GrahamVP, Chief Accounting Officer	Sale	8,266	-$271.2K
2025-08-22	Webster Roald GrahamVP, Chief Accounting Officer	Sale	8,266	-$271.2K
2025-08-12	Lury Richard R.	Sale	7,000	-$222.7K
2025-08-12	Lury Richard R.	Sale	7,000	-$222.7K
2025-08-07	PUMA MARY G	Award	5,932	—
2025-08-07	Lynch Susan D	Award	5,932	—