Samuel J. Anderson, a director at Vicor Corporation, filed a Form 4 on August 24, 2026, reporting five option exercise transactions in Vicor common stock executed on August 20, 2026, on NASDAQ:VICR.

Key Highlights

  • Filing date: August 24, 2026, covering transactions on August 20, 2026.
  • Transaction type: Five separate option exercises (transaction code M) converting non-qualified stock options into common stock.
  • Exercise prices: Options were exercised at $60.37, $53.07, $44.07, $100.00, and $32.89 per share, according to the filing.
  • Resulting ownership: Anderson directly beneficially owned 7,443 shares of Vicor common stock following the final reported transaction, as stated in the filing.
  • Remaining options: Four tranches of non-qualified stock options remain outstanding, with post-transaction balances of 331, 1,507, 3,631, and 3,648 options respectively, per Table II of the filing.
  • Signing authority: The form was signed by Quentin A. Fendelet as attorney in fact for Samuel J. Anderson.

Samuel J. Anderson's Option Exercises at Vicor Corporation

According to the filing, director Samuel J. Anderson exercised five tranches of non-qualified stock options in Vicor Corporation (NASDAQ:VICR) on August 20, 2026. Vicor Corporation, headquartered at 25 Frontage Road, Andover, Massachusetts, is the issuer identified on the form. Each exercise carried a transaction code of M, indicating the acquisition of underlying common shares through option conversion. The five exercises covered 331 shares at $60.37, 754 shares at $53.07, 908 shares at $44.07, 200 shares at $100.00, and 1,216 shares at $32.89, as listed in Table I of the filing.

Table II of the filing details the derivative securities involved. Each non-qualified stock option tranche was exercised at a derivative security price of $0. Following the exercise of 331 options with a $60.37 exercise price, 331 options in that tranche remain outstanding, expiring June 24, 2032. After the exercise of 754 options at $53.07, 1,507 options remain in that series, expiring June 23, 2033. The tranche with a $44.07 exercise price shows 3,631 options remaining after the exercise of 908, expiring June 20, 2035. The $100.00 tranche was fully exercised with zero options remaining. The $32.89 tranche shows 3,648 options remaining after 1,216 were exercised, expiring June 21, 2034.

All transactions and resulting ownership positions are reported as direct (D) in both Table I and Table II. The filing was submitted by Quentin A. Fendelet as attorney in fact for Anderson, and is identified as a filing by one reporting person.

What Was Disclosed

The filing reported five non-qualified stock option exercises by Vicor director Samuel J. Anderson on August 20, 2026, converting options across multiple tranches into directly held common stock, with 7,443 shares directly owned following all reported transactions.