Quentin A. Fendelet - 23 Feb 2026 Form 4 Insider Report for VICOR CORP (vicr)

Role: Corp. VP - CAO
Signature: /s/Quentin A. Fendelet
Issuer symbol: vicr
Transactions as of: 23 Feb 2026
Net transactions value: -$258,680
Form type: 4
Filing time: 24 Feb 2026, 11:51:22 UTC
Previous filing: 27 Oct 2025
Next filing: 03 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Fendelet Quentin A.	Corp. VP - CAO	25 FRONTAGE RD., ANDOVER	/s/Quentin A. Fendelet	24 Feb 2026	0001912196

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	vicr	Common Stock	Options Exercise	$96,760	+2,000		$48.38	2,000	23 Feb 2026	Direct
transaction	vicr	Common Stock	Sale	$355,440	-2,000	-100%	$177.72	0	23 Feb 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	-2,000	-100%	$0.000000	0	23 Feb 2026	Common Stock	2,000	$48.38	Direct

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