Andrew D'Amico - 19 Dec 2025 Form 4 Insider Report for VICOR CORP (VICR)

Role
Director
Signature
/s/Quentin Fendelet Attorney in Fact for Andrew D'Amico
Issuer symbol
VICR
Transactions as of
19 Dec 2025
Net transactions value
-$38,401
Form type
4
Filing time
22 Dec 2025, 14:18:16 UTC
Previous filing
19 Nov 2025
Next filing
06 Jan 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
D'Amico Andrew Director 25 FRONTAGE RD., ANDOVER /s/Quentin Fendelet Attorney in Fact for Andrew D'Amico 22 Dec 2025 0001830195

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction VICR Common Stock Options Exercise $40,015 +754 $53.07 754 19 Dec 2025 Direct
transaction VICR Common Stock Sale $78,416 -754 -100% $104.00 0 19 Dec 2025 Direct F1

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 -754 -25% $0.000000 2,261 19 Dec 2025 Common Stock 754 $53.07 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 12, 2024.