Philip D. Davies - 07 Jan 2026 Form 4 Insider Report for VICOR CORP (VICR)

Role: VP Global Sales & Marketing, Director
Signature: /s/Quentin A. Fendelet Attorney in fact for Philip D. Davies
Issuer symbol: VICR
Transactions as of: 07 Jan 2026
Net transactions value: +$79,891
Form type: 4
Filing time: 08 Jan 2026, 13:25:32 UTC
Previous filing: 28 Oct 2025
Next filing: 09 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Davies Philip D	VP Global Sales & Marketing, Director	25 FRONTAGE RD., ANDOVER	/s/Quentin A. Fendelet Attorney in fact for Philip D. Davies	08 Jan 2026	0001512868

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	VICR	Common Stock	Options Exercise	$79,891	+1,920		$41.61	1,920	07 Jan 2026	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	VICR	Non Qualified Stock Option	Options Exercise	$0	-1,920	-10%	$0.000000	17,278	07 Jan 2026	Common Stock	1,920	$41.61	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Granted under the Companys Amended and Restated 2000 Stock Option and Incentive Plan on May 2, 2023 and vest over a five year period.
F2	Options expire 2 years from each date of vesting.