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: Schmidt James F (Director, CFO, Treasurer, Secretary)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-10-23	Common Stock	M	664	$60.37	Acquired	1539	Direct
2025-10-23	Common Stock	S	664	$90	Disposed	875	Direct
2025-10-23	Common Stock	M	331	$60.37	Acquired	1206	Direct
2025-10-23	Common Stock	S	331	$91.9238	Disposed	875	Direct
2025-10-23	Common Stock	M	1241	$60.61	Acquired	2116	Direct
2025-10-23	Common Stock	S	1241	$91.9238	Disposed	875	Direct
2025-10-23	Common Stock	M	3246	$41.61	Acquired	4121	Direct
2025-10-23	Common Stock	S	3246	$91.9238	Disposed	875	Direct
2025-10-23	Common Stock	M	754	$53.07	Acquired	1629	Direct
2025-10-23	Common Stock	S	754	$91.9238	Disposed	875	Direct
2025-10-23	Common Stock	M	1217	$32.89	Acquired	2092	Direct
2025-10-23	Common Stock	S	1217	$91.9238	Disposed	875	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-10-23	Non Qualified Stock Option	$60.37	M	995	Disposed	2032-06-24	Common Stock (995)	Direct
2025-10-23	Non Qualified Stock Option	$60.61	M	1241	Disposed		Common Stock (1241)	Direct
2025-10-23	Non Qualified Stock Option	$41.61	M	3246	Disposed		Common Stock (3246)	Direct
2025-10-23	Non Qualified Stock Option	$53.07	M	754	Disposed	2033-06-23	Common Stock (754)	Direct
2025-10-23	Non Qualified Stock Option	$32.89	M	1217	Disposed	2034-06-23	Common Stock (1217)	Direct

Footnotes

F1: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2024.

F2: Options expire 2 years from each vesting date.