ALLEGRO MICROSYSTEMS, INC. — Director's Dealing 2025

May 19, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ALLEGRO MICROSYSTEMS, INC. (ALGM)
CIK: 0000866291
Period of Report: 2025-05-15

Reporting Person: Doogue Michael (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-05-15	Common Stock	A	150226	—	Acquired	237279	Direct
2025-05-16	Common Stock	F	21730	$27.51	Disposed	215549	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	246086	Indirect

Footnotes

F1: Represents an award of Restricted Stock Units ("RSUs") granted on May 15, 2025. Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest in three equal annual installments beginning on May 16, 2026.

F2: Represents shares withheld to cover taxes due upon the vesting of performance-vesting restricted stock units and RSUs that were previously granted by the Issuer.