Mike Slessor Formfactor Inc (FORM) insider trading activity

Mike Slessor is CEO of FORMFACTOR INC. Currently has a direct ownership of 539,748 shares of FORM, which is worth approximately $15.4 Million. The most recent transaction as insider was on Aug 07, 2025, when has been sold 3,282 shares (Common Stock) at a price of $27.98 per share, resulting in proceeds of $91,830. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 540K

4.83% 3M change

0.27% 12M change

Total Value Held $15.4 Million

MIKE SLESSOR Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Aug 07 2025	SELL Payment of exercise price or tax liability	$91,830 $27.98 p/Share	3,282 Reduced 0.6%	539,748 Common Stock
Aug 07 2025	BUY Exercise of conversion of derivative security	-	5,908 Added 1.08%	543,030 Common Stock
Aug 05 2025	SELL Payment of exercise price or tax liability	$59,008 $29.14 p/Share	2,025 Reduced 0.38%	537,122 Common Stock
Aug 05 2025	BUY Exercise of conversion of derivative security	-	3,644 Added 0.67%	539,147 Common Stock
Aug 01 2025	SELL Payment of exercise price or tax liability	$1,034,334 $28.93 p/Share	35,753 Reduced 6.26%	535,503 Common Stock
Aug 01 2025	BUY Exercise of conversion of derivative security	-	64,361 Added 10.59%	543,517 Common Stock
Jul 01 2025	SELL Open market or private sale	$136,120 $34.03 p/Share	4,000 Reduced 0.78%	506,895 Common Stock
Jun 02 2025	SELL Open market or private sale	$119,320 $29.83 p/Share	4,000 Reduced 0.78%	510,895 Common Stock
May 07 2025	SELL Payment of exercise price or tax liability	$97,344 $29.66 p/Share	3,282 Reduced 0.63%	514,895 Common Stock
May 07 2025	BUY Exercise of conversion of derivative security	-	5,908 Added 1.13%	518,177 Common Stock
May 05 2025	SELL Payment of exercise price or tax liability	$60,365 $29.81 p/Share	2,025 Reduced 0.39%	512,269 Common Stock
May 05 2025	BUY Exercise of conversion of derivative security	-	3,644 Added 0.7%	514,294 Common Stock
May 01 2025	SELL Open market or private sale	$126,880 $31.72 p/Share	4,000 Reduced 0.78%	510,650 Common Stock
Apr 01 2025	SELL Open market or private sale	$112,960 $28.24 p/Share	4,000 Reduced 0.77%	514,650 Common Stock
Mar 03 2025	SELL Open market or private sale	$132,200 $33.05 p/Share	4,000 Reduced 0.77%	518,650 Common Stock
Feb 07 2025	SELL Payment of exercise price or tax liability	$117,626 $35.84 p/Share	3,282 Reduced 0.62%	522,650 Common Stock
Feb 07 2025	BUY Exercise of conversion of derivative security	-	5,908 Added 1.11%	525,932 Common Stock
Feb 05 2025	SELL Payment of exercise price or tax liability	$88,449 $41.12 p/Share	2,151 Reduced 0.41%	520,024 Common Stock
Feb 05 2025	BUY Exercise of conversion of derivative security	-	3,644 Added 0.69%	522,175 Common Stock
Feb 03 2025	SELL Open market or private sale	$157,000 $39.25 p/Share	4,000 Reduced 0.77%	518,531 Common Stock
Jan 02 2025	SELL Open market or private sale	$178,800 $44.7 p/Share	4,000 Reduced 0.76%	522,531 Common Stock
Dec 02 2024	SELL Open market or private sale	$163,480 $40.87 p/Share	4,000 Reduced 0.75%	526,531 Common Stock
Nov 07 2024	SELL Payment of exercise price or tax liability	$138,902 $42.4 p/Share	3,276 Reduced 0.61%	530,531 Common Stock
Nov 07 2024	BUY Exercise of conversion of derivative security	-	5,908 Added 1.09%	533,807 Common Stock
Nov 05 2024	SELL Payment of exercise price or tax liability	$79,283 $39.23 p/Share	2,021 Reduced 0.38%	527,899 Common Stock

Mike Slessor

CEO

Livermore, CA

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