Briansky Sharon 4

What Happened

• Sharon Briansky, Senior Vice President, General Counsel & Secretary of Allegro Microsystems (ALGM), disposed a total of 18,249 shares in mid-February 2026.
• On 2026-02-13, 8,991 shares were withheld to cover taxes on vested restricted stock units (withheld at $42.38 per share, value $381,039).
• On 2026-02-17, 9,258 shares were sold in an open-market transaction at $41.56 per share for proceeds of $384,762. Combined proceeds/consideration for the two events total about $765,801.
• These are disposals (not purchases); the withholding is a tax-related surrender of shares and the 9,258-share event is an open-market sale.

Key Details

• Transaction dates & prices:
  • 2026-02-13: 8,991 shares withheld @ $42.38 (tax withholding) = $381,039 (code F).
  • 2026-02-17: 9,258 shares sold @ $41.56 (open market) = $384,762 (code S).
• Shares owned after transaction: Not specified in the supplied filing excerpt.
• Footnotes:
  • F1: Shares withheld to cover taxes on vested RSUs.
  • F2: The 9,258-share sale was executed under a Rule 10b5-1 trading plan adopted Aug 4, 2025 (plan details previously disclosed in the issuer’s 10-Q filed Oct 31, 2025).
• Filing timing: Form 4 was filed on 2026-02-18. The 2/17 sale was reported promptly (next day); the 2/13 withholding was reported five days after the event, which is outside the typical 2-business-day reporting window and therefore appears late.

Context

• Tax-withholding of vested RSUs is routine and does not necessarily indicate a discretionary sale decision. The open-market sale was made under a prearranged 10b5-1 plan, which typically reflects automatic sales according to a plan rather than a contemporaneous trading decision.
• Total economic effect of these transactions was roughly $766K in disposed value. As always, facts are presented as reported; no inference about insider intent is made.