Andrew D'Amico - Oct 22, 2025 Form 4 Insider Report for VICOR CORP (vicr)

Role
Director
Signature
/s/Kemble D. Morrison Attorney in fact for Andrew D'Amico
Stock symbol
vicr
Transactions as of
Oct 22, 2025
Transactions value $
-$629,527
Form type
4
Date filed
10/24/2025, 11:34 AM
Previous filing
Oct 22, 2025
Next filing
Oct 28, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
D'Amico Andrew Director 25 FRONTAGE RD., ANDOVER /s/Kemble D. Morrison Attorney in fact for Andrew D'Amico 2025-10-24 0001830195

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction vicr Common Stock Options Exercise $88.6K +3.5K $25.30 3.5K Oct 22, 2025 Direct
transaction vicr Common Stock Sale -$280K -3.5K -100% $80.00 0 Oct 22, 2025 Direct F1
transaction vicr Common Stock Options Exercise $25.3K +1K $25.30 1K Oct 22, 2025 Direct
transaction vicr Common Stock Sale -$82K -1K -100% $82.00 0 Oct 22, 2025 Direct F1
transaction vicr Common Stock Options Exercise $36.6K +1K $36.60 1K Oct 22, 2025 Direct
transaction vicr Common Stock Sale -$84K -1K -100% $84.00 0 Oct 22, 2025 Direct F1
transaction vicr Common Stock Options Exercise $36.6K +1K $36.60 1K Oct 22, 2025 Direct
transaction vicr Common Stock Sale -$86K -1K -100% $86.00 0 Oct 22, 2025 Direct F1
transaction vicr Common Stock Options Exercise $40.3K +1.1K $36.60 1K Oct 22, 2025 Direct
transaction vicr Common Stock Sale -$96.8K -1.1K -100% $88.00 0 Oct 22, 2025 Direct F1
transaction vicr Common Stock Options Exercise $42.6K +565 $75.43 565 Oct 22, 2025 Direct
transaction vicr Common Stock Sale -$48K -565 -100% $85.00 0 Oct 22, 2025 Direct F1
transaction vicr Common Stock Options Exercise $97K +1.6K $60.61 1.6K Oct 22, 2025 Direct
transaction vicr Common Stock Sale -$128K -1.6K -100% $80.00 0 Oct 22, 2025 Direct F1
transaction vicr Common Stock Options Exercise $20K +332 $60.37 332 Oct 22, 2025 Direct
transaction vicr Common Stock Sale -$27.9K -332 -100% $84.00 0 Oct 22, 2025 Direct F1
transaction vicr Common Stock Options Exercise $20K +332 $60.37 332 Oct 22, 2025 Direct
transaction vicr Common Stock Sale -$28.6K -332 -100% $86.00 0 Oct 22, 2025 Direct F1
transaction vicr Common Stock Options Exercise $20K +331 $60.37 331 Oct 22, 2025 Direct
transaction vicr Common Stock Sale -$29.1K -331 -100% $88.00 0 Oct 22, 2025 Direct F1
transaction vicr Common Stock Options Exercise $121K +2.92K $41.61 2.92K Oct 22, 2025 Direct
transaction vicr Common Stock Sale -$233K -2.92K -100% $80.00 0 Oct 22, 2025 Direct F1
transaction vicr Common Stock Options Exercise $41.6K +1K $41.61 1K Oct 22, 2025 Direct
transaction vicr Common Stock Sale -$87.5K -1K -100% $87.50 0 Oct 22, 2025 Direct F1
transaction vicr Common Stock Options Exercise $42.6K +565 $75.43 565 Oct 23, 2025 Direct
transaction vicr Common Stock Sale -$50.9K -565 -100% $90.00 0 Oct 23, 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 -4.5K -100% $0.00 0 Oct 22, 2025 Common Stock 4.5K $25.30 Direct
transaction vicr Non Qualified Stock Option Options Exercise $0 -3.1K -100% $0.00 0 Oct 22, 2025 Common Stock 3.1K $36.60 Direct
transaction vicr Non Qualified Stock Option Options Exercise $0 -565 -33.33% $0.00 1.13K Oct 22, 2025 Common Stock 565 $75.43 Direct F2
transaction vicr Non Qualified Stock Option Options Exercise $0 -1.6K -50% $0.00 1.6K Oct 22, 2025 Common Stock 1.6K $60.61 Direct F2
transaction vicr Non Qualified Stock Option Options Exercise $0 -995 -60.05% $0.00 662 Oct 22, 2025 Common Stock 995 $60.37 Direct
transaction vicr Non Qualified Stock Option Options Exercise $0 -3.92K -28.84% $0.00 9.67K Oct 22, 2025 Common Stock 3.92K $41.61 Direct F2
transaction vicr Non Qualified Stock Option Options Exercise $0 -565 -50% $0.00 565 Oct 23, 2025 Common Stock 565 $75.43 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.