Robert Gendron - Oct 23, 2025 Form 4 Insider Report for VICOR CORP (VICR)

Signature
/s/Quentin A. Fendelet Attorney in Fact for Robert Gendron
Stock symbol
VICR
Transactions as of
Oct 23, 2025
Transactions value $
-$45,171
Form type
4
Date filed
10/27/2025, 01:43 PM
Previous filing
May 5, 2025
Next filing
Oct 28, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
GENDRON ROBERT Corp. VP - Marketing 25 FRONTAGE RD., ANDOVER /s/Quentin A. Fendelet Attorney in Fact for Robert Gendron 2025-10-27 0001654669

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction VICR Common Stock Options Exercise $72.4K +960 +17.86% $75.43 6.33K Oct 23, 2025 Direct
transaction VICR Common Stock Sale -$85.1K -960 -15.16% $88.68 5.37K Oct 23, 2025 Direct
transaction VICR Common Stock Options Exercise $70.1K +1.16K +21.51% $60.61 6.53K Oct 23, 2025 Direct
transaction VICR Common Stock Sale -$103K -1.16K -17.7% $88.68 5.37K Oct 23, 2025 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 -960 -66.67% $0.00 480 Oct 23, 2025 Common Stock 960 $75.43 Direct F1
transaction VICR Non Qualified Stock Option Options Exercise $0 -1.16K -50.04% $0.00 1.15K Oct 23, 2025 Common Stock 1.16K $60.61 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Options expire 2 years from each vesting date.