Derek D'Antilio - 13 May 2025 Form 4 Insider Report for ALLEGRO MICROSYSTEMS, INC. (ALGM)

Role: EVP, CFO & Treasurer
Signature: /s/ Raymond Myer, Attorney-in-Fact for Derek P. D'Antilio
Issuer symbol: ALGM
Transactions as of: 13 May 2025
Transactions value $: $0
Form type: 4
Filing time: 14 May 2025, 16:30:21 UTC
Previous filing: 03 Mar 2025
Next filing: 19 May 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
D'Antilio Derek	EVP, CFO & Treasurer	955 PERIMETER ROAD, MANCHESTER	/s/ Raymond Myer, Attorney-in-Fact for Derek P. D'Antilio	14 May 2025	0001904082

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ALGM	Common Stock	Award	$0	+21.3K	+11.32%	$0.00	209K	13 May 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	On each of May 16, 2022 and June 11, 2024, the Reporting Person was granted an award of performance-vesting restricted stock units (the "PSUs"). The PSUs were subject to the Issuer's attainment of certain performance objectives between one and three fiscal years, and all remaining unvested amounts under the PSUs are scheduled to vest in full on May 16, 2025 in the form of common stock. On May 13, 2025, the Compensation Committee of the Issuer's Board of Directors determined that the performance objective goals of the PSUs for the period ending March 28, 2025 had been met for the aggregate number of shares shown. Following certification, the awards remain subject to the time-based vesting conditions, with the amount shown scheduled to vest in full on May 16, 2025.

Content

On each of May 16, 2022 and June 11, 2024, the Reporting Person was granted an award of performance-vesting restricted stock units (the "PSUs"). The PSUs were subject to the Issuer's attainment of certain performance objectives between one and three fiscal years, and all remaining unvested amounts under the PSUs are scheduled to vest in full on May 16, 2025 in the form of common stock. On May 13, 2025, the Compensation Committee of the Issuer's Board of Directors determined that the performance objective goals of the PSUs for the period ending March 28, 2025 had been met for the aggregate number of shares shown. Following certification, the awards remain subject to the time-based vesting conditions, with the amount shown scheduled to vest in full on May 16, 2025.