Andrew D'Amico - 24 Oct 2025 Form 4 Insider Report for VICOR CORP (VICR)

Role
Director
Signature
/s/Quentin A. Fendelet Attorney in Fact for Andrew D'Amico
Issuer symbol
VICR
Transactions as of
24 Oct 2025
Net transactions value
-$78,498
Form type
4
Filing time
28 Oct 2025, 14:54:34 UTC
Previous filing
24 Oct 2025
Next filing
13 Nov 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
D'Amico Andrew Director 25 FRONTAGE RD., ANDOVER /s/Quentin A. Fendelet Attorney in Fact for Andrew D'Amico 28 Oct 2025 0001830195

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction VICR Common Stock Options Exercise $39,836 +577 $69.04 577 24 Oct 2025 Direct
transaction VICR Common Stock Sale $54,278 -577 -100% $94.07 0 24 Oct 2025 Direct F1
transaction VICR Common Stock Options Exercise $39,836 +577 $69.04 577 24 Oct 2025 Direct
transaction VICR Common Stock Sale $55,392 -577 -100% $96.00 0 24 Oct 2025 Direct F1
transaction VICR Common Stock Options Exercise $38,156 +917 $41.61 917 24 Oct 2025 Direct
transaction VICR Common Stock Sale $86,656 -917 -100% $94.50 0 24 Oct 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 -1,154 -50% $0.000000 1,154 24 Oct 2025 Common Stock 1,154 $69.04 Direct
transaction VICR Non Qualified Stock Option Options Exercise $0 -917 -9.5% $0.000000 8,748 24 Oct 2025 Common Stock 917 $41.61 Direct F2
* 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.
F2 Options expire 2 years from each vesting date.