Robert J. Willett - 05 Aug 2026 Form 4 Insider Report for ALLEGRO MICROSYSTEMS, INC. (ALGM)

Reporting relationship: Director
Issuer ticker: ALGM
Reported as of: 05 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 07 Aug 2026, 07:02:05 UTC
Prior SEC filing: 22 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Raymond Myer, Attorney-in-Fact for Robert J. Willett

Key filing fact

Robert J. Willett filed Form 4 for ALLEGRO MICROSYSTEMS, INC. (ALGM) on 07 Aug 2026.

Key facts

This page summarizes Robert J. Willett's Form 4 filing for ALLEGRO MICROSYSTEMS, INC. (ALGM).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 07 Aug 2026, 07:02.

Change

Previous filing in this sequence was filed on 22 May 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001438093 Primary reporting owner

Willett Robert

Relationship: Director
Address: 955 PERIMETER ROAD, MANCHESTER
Signature: /s/ Raymond Myer, Attorney-in-Fact for Robert J. Willett
Signature date: 07 Aug 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ALGM transaction Derivative

Deferred Stock Units

Award

Transaction value
Shares: +4,251
Change %
Price: $0.000000^*
Shares after: 4,251
Date: 05 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 4,251
Exercise price
Footnotes: F1, F2, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Each deferred stock unit ("DSU") represents a contingent right to receive one share of the Issuer's Common Stock.

Footnote F2

As part of the Company's non-employee director compensation program, the reporting person elected to receive their annual non-employee director equity compensation in the form of DSUs under the Issuer's 2020 Omnibus Incentive Compensation Plan and pursuant to a prior election under the Company's Deferred Compensation Plan for Non-Employee Directors. The DSUs were credited on a one-for-one basis relative to the award of shares of the Issuer's Common Stock.

Footnote F3

The DSUs are fully vested when granted and will be settled in shares of the Issuer's Common Stock following the reporting person's separation from service, disability, or death.