Mike Slessor Formfactor Inc (FORM) insider trading activity

Mike Slessor is CEO of FORMFACTOR INC. Currently has a direct ownership of 525,601 shares of FORM, which is worth approximately $26.4 Million. The most recent transaction as insider was on Dec 17, 2025, when has been sold 7,669 shares (Common Stock) at a price of $56.5 per share, resulting in proceeds of $433,298. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 526K

2.62% 3M change

0.18% 12M change

Total Value Held $26.4 Million

MIKE SLESSOR Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Dec 17 2025	SELL Open market or private sale	$433,298 $56.5 p/Share	7,669 Reduced 1.44%	525,601 Common Stock
Nov 19 2025	SELL Open market or private sale	$421,242 $50.13 p/Share	8,403 Reduced 1.55%	533,270 Common Stock
Nov 07 2025	SELL Payment of exercise price or tax liability	$171,484 $52.25 p/Share	3,282 Reduced 0.6%	541,673 Common Stock
Nov 07 2025	BUY Exercise of conversion of derivative security	-	5,908 Added 1.07%	544,955 Common Stock
Nov 06 2025	SELL Payment of exercise price or tax liability	$181,691 $54.22 p/Share	3,351 Reduced 0.62%	539,047 Common Stock
Nov 06 2025	BUY Exercise of conversion of derivative security	-	6,031 Added 1.1%	542,398 Common Stock
Nov 05 2025	SELL Payment of exercise price or tax liability	$112,104 $55.36 p/Share	2,025 Reduced 0.38%	536,367 Common Stock

Nov 05 2025	BUY Exercise of conversion of derivative security	-	3,644 Added 0.67%	538,392 Common Stock
Nov 03 2025	SELL Bona fide gift	-	5,000 Reduced 0.93%	534,748 Common Stock
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

Also insider at

BHE

BENCHMARK ELECTRONICS INC Technology

Mike Slessor

CEO

Livermore, CA

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