VICOR CORP — Director's Dealing 2025

Oct 27, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: VICOR CORP (VICR)
CIK: 0000751978
Period of Report: 2025-10-23

Reporting Person: Morrison Kemble D (VP-Corporate Controller)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-10-23	Common Stock	M	1361	$41.61	Acquired	1361	Direct
2025-10-23	Common Stock	S	1361	$91.94	Disposed	0	Direct
2025-10-23	Common Stock	M	738	$33.96	Acquired	738	Direct
2025-10-23	Common Stock	S	738	$91.94	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-10-23	Non Qualified Stock Option	$41.61	M	1361	Disposed		Common Stock (1361)	Direct
2025-10-23	Non Qualified Stock Option	$33.96	M	738	Disposed		Common Stock (738)	Direct

Footnotes

F1: Options expire 2 years from each vesting date.