Nancy L. Grava - 02 May 2025 Form 4 Insider Report for VICOR CORP (VICR)

Role: VP-Human Resources
Signature: /s/Quentin A. Fendelet. Attorney in Fact for Nancy L. Grava
Issuer symbol: VICR
Transactions as of: 02 May 2025
Net transactions value: $0
Form type: 4
Filing time: 05 May 2025, 16:00:30 UTC
Previous filing: 06 May 2024
Next filing: 27 Oct 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Grava Nancy L	VP-Human Resources	25 FRONTAGE RD., ANDOVER	/s/Quentin A. Fendelet. Attorney in Fact for Nancy L. Grava	05 May 2025	0001654862

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	Award	$0	+6,138		$0.000000	6,138	02 May 2025	Common Stock	6,138	$50.00	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, 2025 and vest over a five year period.
F2	Options expire 2 years from each vesting date.