ALLEGRO MICROSYSTEMS, INC. — Director's Dealing 2022

May 18, 2022

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ALLEGRO MICROSYSTEMS, INC. (ALGM)
CIK: 0000866291
Period of Report: 2022-05-13

Reporting Person: Doogue Michael (SVP of Technology and Products)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2022-05-13	Common Stock	A	6160	—	Acquired	78451	Direct
2022-05-16	Common Stock	F	14024	$23.48	Disposed	64427	Direct
2022-05-16	Common Stock	A	22147	—	Acquired	86574	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	218719	Indirect

Footnotes

F1: On May 7, 2021, the reporting person was granted an award of Performance Stock Units ("PSUs"), which vest over a three-year period in the form of common stock, contingent upon the Issuer's attainment of certain performance objectives between one and three years. On May 13, 2022, the Compensation Committee of the Issuer's Board of Directors determined that the one-year performance objective goals had been met, resulting in the vesting of a portion of the total PSU on May 16, 2022.

F2: Represents shares withheld to cover taxes due upon the vesting of RSUs and PSUs that were previously granted by the Issuer.

F3: Represents an award of Restricted Stock Units ("RSUs") granted on May 16, 2022. Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest in four equal annual installments beginning on May 16, 2023.