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VICOR CORP Director's Dealing 2025

May 5, 2025

31590_dirs_2025-05-05_8d32df92-0b85-4284-b221-fd31bef1325d.zip

Director's Dealing

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SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: VICOR CORP (VICR)
CIK: 0000751978
Period of Report: 2025-05-02

Reporting Person: Gusinov Alex (Corp. VP Engineering)

Derivative Transactions

Date Security Exercise Price Code Shares A/D Expiration Underlying Ownership
2025-05-02 Non Qualified Stock Option $50 A 9046 Acquired Common Stock (9046) Direct

Holdings (Non-Derivative)

Security Shares Ownership
Common Stock 16672 Direct

Footnotes

F1: Includes 654 shares acquired under the Vicor Corporation 2017 Employee Stock Purchase Plan on February 28 2025.

F2: Granted under the Companys Amended and Restated 2000 Stock Option and Incentive Plan on May 2, 2025 and vest over a five year period.

F3: Options expire 2 years from each vesting date.