Gene M. Zamiska Western Digital Corp (WDC) insider trading activity

Gene M. Zamiska is SVP & Princ. Acctg Officer of WESTERN DIGITAL CORP. Currently has a direct ownership of 27,425 shares of WDC, which is worth approximately $3.33 Million. The most recent transaction as insider was on Aug 28, 2025, when has been sold 353 shares (Common Stock) at a price of $80.9 per share, resulting in proceeds of $28,557. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 27.4K

30.75% 3M change

15.88% 12M change

Total Value Held $3.33 Million

Gene M. Zamiska Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Aug 28 2025	SELL Open market or private sale	$28,557 $80.9 p/Share	353 Reduced 1.27%	27,425 Common Stock
Aug 27 2025	SELL Payment of exercise price or tax liability	$27,831 $80.67 p/Share	345 Reduced 1.23%	27,778 Common Stock
Aug 27 2025	BUY Exercise of conversion of derivative security	-	1 Added 0.0%	28,123 Common Stock
Aug 26 2025	SELL Open market or private sale	$64,387 $79.1 p/Share	814 Reduced 2.81%	28,122 Common Stock
Aug 25 2025	SELL Payment of exercise price or tax liability	$63,217 $79.22 p/Share	798 Reduced 2.68%	28,936 Common Stock
Aug 25 2025	BUY Exercise of conversion of derivative security	-	2 Added 0.01%	29,734 Common Stock
Aug 22 2025	SELL Open market or private sale	$136,697 $74.78 p/Share	1,828 Reduced 5.79%	29,732 Common Stock
Aug 21 2025	SELL Payment of exercise price or tax liability	$134,164 $74.66 p/Share	1,797 Reduced 4.92%	34,720 Common Stock
Aug 21 2025	SELL Open market or private sale	$239,148 $75.68 p/Share	3,160 Reduced 9.1%	31,560 Common Stock
Aug 21 2025	BUY Exercise of conversion of derivative security	-	6 Added 0.02%	36,517 Common Stock
Aug 20 2025	SELL Payment of exercise price or tax liability	$234,635 $75.64 p/Share	3,102 Reduced 7.83%	36,511 Common Stock
Aug 20 2025	BUY Exercise of conversion of derivative security	-	9 Added 0.02%	39,613 Common Stock
Jun 17 2025	SELL Open market or private sale	$14,212 $58.01 p/Share	245 Reduced 0.61%	39,604 Common Stock
Jun 14 2025	SELL Payment of exercise price or tax liability	$13,368 $55.7 p/Share	240 Reduced 0.6%	39,849 Common Stock
Jun 05 2025	SELL Open market or private sale	$94,887 $54.88 p/Share	1,729 Reduced 4.13%	40,089 Common Stock
May 27 2025	SELL Payment of exercise price or tax liability	$17,877 $51.82 p/Share	345 Reduced 0.82%	41,818 Common Stock
May 25 2025	SELL Payment of exercise price or tax liability	$39,993 $50.18 p/Share	797 Reduced 1.86%	42,163 Common Stock
May 20 2025	SELL Payment of exercise price or tax liability	$18,226 $50.63 p/Share	360 Reduced 0.83%	42,960 Common Stock
Mar 12 2025	SELL Open market or private sale	$19,776 $43.37 p/Share	456 Reduced 1.04%	43,320 Common Stock
Mar 07 2025	SELL Open market or private sale	$68,616 $41.36 p/Share	1,659 Reduced 3.65%	43,776 Common Stock
Mar 06 2025	SELL Payment of exercise price or tax liability	$46,258 $41.45 p/Share	1,116 Reduced 2.4%	45,435 Common Stock
Feb 28 2025	BUY Grant, award, or other acquisition	-	5,327 Added 10.27%	46,551 Common Stock
Nov 29 2024	SELL Open market or private sale	$22,733 $72.63 p/Share	313 Reduced 1.09%	28,383 Common Stock
Nov 27 2024	SELL Payment of exercise price or tax liability	$11,940 $71.5 p/Share	167 Reduced 0.58%	28,696 Common Stock
Nov 26 2024	SELL Open market or private sale	$46,053 $69.99 p/Share	658 Reduced 2.23%	28,863 Common Stock

GMZ

Gene M. Zamiska

SVP & Princ. Acctg Officer

San Jose, CA

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