Briansky Sharon 4

4 · ALLEGRO MICROSYSTEMS, INC. · Filed May 15, 2026

AI-generated summary of this filing

Updated May 15, 2026

Allegro (ALGM) SVP Sharon Briansky Receives RSU/PSU Award

What Happened

Sharon Briansky, SVP, General Counsel and Secretary of Allegro Microsystems (ALGM), was issued awards totaling 18,463 shares on May 13, 2026. The filing shows two award entries: 15,852 shares and 2,611 shares, each at $0.00 (total reported value $0) — coded as A (award/grant). This is a grant/award (not a purchase or sale).

Key Details

Transaction date reported: May 13, 2026; Form 4 filed May 15, 2026 (timely).
Awards: 15,852 RSUs (per F1) and 2,611 shares tied to PSUs certified on May 13, 2026 (total 18,463 shares); price per share reported $0.00; total reported cash value $0.
Vesting: RSUs vest in three equal annual installments beginning May 16, 2027 (F1). The PSUs were originally granted May 15, 2023, were certified by the Compensation Committee on May 13, 2026 as meeting performance goals, and the certified portion is scheduled to vest on May 16, 2026 (F2).
Shares owned after the transaction: not specified in the excerpt of the filing provided.
No 10b5-1 plan, tax-withholding, gift, or sale indicated in the filing excerpt.

Context

This is an equity award (RSUs and performance-vesting RSUs). Awards are common for executive compensation and do not represent an open-market purchase or sale by the insider.
The PSUs required certification of performance goals before converting to time-vested units; that certification occurred May 13, 2026, with final vesting scheduled May 16, 2026.

Form 4

Period: 2026-05-13

SVP, GC and Secretary

Transactions

Footnotes (2)

[F1]Represents an award of Restricted Stock Units ("RSUs") granted on May 13, 2026. 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, 2027.
[F2]On May 15, 2023, the Reporting Person was granted an award of performance-vesting restricted stock units ("PSUs"), which vest in full on May 16, 2026 in the form of common stock, contingent upon the Issuer's attainment of certain performance objectives between one and three fiscal years. On May 13, 2026, the Compensation Committee of the Issuer's Board of Directors determined that the performance objective goals of the PSUs for the period ending March 27, 2026 had been met for the aggregate number of shares shown. Following certification, the certified portion of the award remains subject to the time-based vesting conditions, with the full amount scheduled to vest on May 16, 2026.

Signature

/s/ Raymond Myer, Attorney-in-Fact for Sharon Briansky|2026-05-15

1 file