Alex Gusinov Vicor Corp (VICR) insider trading activity

Alex Gusinov is Corp. Vice President Eng. of VICOR CORP. Currently has a direct ownership of 10,340 shares of VICR, which is worth approximately $920,260. The most recent transaction as insider was on Dec 15, 2025, when has been sold 3,844 shares (Common Stock) at a price of $97.31 per share, resulting in proceeds of $374,059. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 10.3K

35.45% 3M change

35.45% 12M change

Total Value Held $920,260

Alex Gusinov Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Dec 15 2025	SELL Open market or private sale	$374,059 $97.31 p/Share	3,844 Reduced 27.1%	10,340 Common Stock
Nov 21 2025	SELL Open market or private sale	$135,184 $86.05 p/Share	1,571 Reduced 9.97%	14,184 Common Stock
Nov 04 2025	BUY Exercise of conversion of derivative security	$182,101 $59.22 p/Share	3,075 Added 16.33%	15,755 Common Stock
Oct 28 2025	SELL Open market or private sale	$360,705 $89.75 p/Share	4,019 Reduced 24.07%	12,680 Common Stock
Nov 13 2024	SELL Open market or private sale	$50,512 $59.01 p/Share	856 Reduced 5.07%	16,018 Common Stock
Jul 25 2022	BUY Exercise of conversion of derivative security	$5,559 $12.19 p/Share	456 Added 2.81%	15,746 Common Stock
Nov 30 2021	BUY Exercise of conversion of derivative security	$25,062 $69.04 p/Share	363 Added 2.32%	15,290 Common Stock

Nov 11 2021	SELL Open market or private sale	$206,594 $161.15 p/Share	1,282 Reduced 7.91%	14,927 Common Stock
Sep 13 2021	BUY Exercise of conversion of derivative security	$24,734 $14.74 p/Share	1,678 Added 9.38%	16,209 Common Stock
Sep 10 2021	SELL Open market or private sale	$194,019 $127.56 p/Share	1,521 Reduced 9.48%	14,531 Common Stock
Sep 03 2021	SELL Open market or private sale	$121,873 $128.83 p/Share	946 Reduced 5.57%	16,052 Common Stock
Aug 27 2021	SELL Open market or private sale	$140,263 $123.58 p/Share	1,135 Reduced 6.26%	16,998 Common Stock
Jul 29 2021	SELL Open market or private sale	$144,866 $113.0 p/Share	1,282 Reduced 6.6%	18,133 Common Stock

Alex Gusinov

Corp. Vice President Eng.

Andover, MA

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