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FormFactor Inc

FORM ManufacturingElectronic Equipment
Transactions reported in official disclosures

Price with disclosed trades

Daily closes, past year · marks sit on transaction dates, sized by value

71 trades

Reporting person Filed Transaction Transaction value Source
Slessor Mike CEO Aug 17, 2026 3-day lag Sale Aug 14, 2026 $374.66K Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Aug 10, 2026 3-day lag Disposition Aug 7, 2026 $9.26M Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Aug 10, 2026 3-day lag Exercise Aug 7, 2026 $0 Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Aug 10, 2026 3-day lag Exercise Aug 7, 2026 $0 Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Aug 10, 2026 3-day lag Award Aug 7, 2026 $0 Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Aug 10, 2026 3-day lag Exercise Aug 7, 2026 $0 Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Aug 10, 2026 3-day lag Exercise Aug 7, 2026 $0 Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Aug 10, 2026 3-day lag Disposition Aug 7, 2026 $385.98K Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Aug 10, 2026 4-day lag Award Aug 6, 2026 $0 Filed shares x price SEC Form 4 View filing
Mckinnis Aric Brendan CFO, SVP Global Finance Aug 10, 2026 4-day lag Award Aug 6, 2026 $0 Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Aug 7, 2026 1-day lag Exercise Aug 6, 2026 $0 Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Aug 7, 2026 1-day lag Disposition Aug 6, 2026 $386.76K Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Aug 7, 2026 1-day lag Exercise Aug 6, 2026 $0 Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Aug 7, 2026 2-day lag Exercise Aug 5, 2026 $0 Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Aug 7, 2026 2-day lag Disposition Aug 5, 2026 $232.08K Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Aug 7, 2026 2-day lag Exercise Aug 5, 2026 $0 Filed shares x price SEC Form 4 View filing
Mckinnis Aric Brendan CFO, SVP Global Finance Aug 7, 2026 1-day lag Exercise Aug 6, 2026 $0 Filed shares x price SEC Form 4 View filing
Mckinnis Aric Brendan CFO, SVP Global Finance Aug 7, 2026 1-day lag Disposition Aug 6, 2026 $31.57K Filed shares x price SEC Form 4 View filing
Mckinnis Aric Brendan CFO, SVP Global Finance Aug 7, 2026 1-day lag Exercise Aug 6, 2026 $0 Filed shares x price SEC Form 4 View filing
Mckinnis Aric Brendan CFO, SVP Global Finance Aug 7, 2026 2-day lag Disposition Aug 5, 2026 $14.88K Filed shares x price SEC Form 4 View filing
Mckinnis Aric Brendan CFO, SVP Global Finance Aug 7, 2026 2-day lag Exercise Aug 5, 2026 $0 Filed shares x price SEC Form 4 View filing
Mckinnis Aric Brendan CFO, SVP Global Finance Aug 7, 2026 2-day lag Exercise Aug 5, 2026 $0 Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Jul 16, 2026 1-day lag Sale Jul 15, 2026 $20.24K Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Jul 16, 2026 1-day lag Sale Jul 15, 2026 $193.69K Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Jul 16, 2026 1-day lag Sale Jul 15, 2026 $36.17K Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Jul 16, 2026 1-day lag Sale Jul 15, 2026 $121.34K Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Jul 16, 2026 1-day lag Sale Jul 15, 2026 $105.29K Filed shares x price SEC Form 4 View filing
Slessor Mike CEO Jul 16, 2026 1-day lag Sale Jul 15, 2026 $83.46K Filed shares x price SEC Form 4 View filing
St Dennis Thomas Director Jun 16, 2026 Same-day filing Gift Jun 16, 2026 $0 Filed shares x price SEC Form 4 View filing
St Dennis Thomas Director Jun 16, 2026 1-day lag Sale Jun 15, 2026 $424.17K Filed shares x price SEC Form 4 View filing
Slessor Mike CEO
Sale
Calculated transaction value
$374.66K 2,892 shares @ $129.55
Traded
Aug 14, 2026
Filed
Aug 17, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Disposition
Calculated transaction value
$9.26M 78,908 shares @ $117.39
Traded
Aug 7, 2026
Filed
Aug 10, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Exercise
Calculated transaction value
$0 5,908 shares @ $0
Traded
Aug 7, 2026
Filed
Aug 10, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Exercise
Calculated transaction value
$0 141,792 shares @ $0
Traded
Aug 7, 2026
Filed
Aug 10, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Award
Calculated transaction value
$0 141,792 shares @ $0
Traded
Aug 7, 2026
Filed
Aug 10, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Exercise
Calculated transaction value
$0 141,792 shares @ $0
Traded
Aug 7, 2026
Filed
Aug 10, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Exercise
Calculated transaction value
$0 5,908 shares @ $0
Traded
Aug 7, 2026
Filed
Aug 10, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Disposition
Calculated transaction value
$385.98K 3,288 shares @ $117.39
Traded
Aug 7, 2026
Filed
Aug 10, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Award
Calculated transaction value
$0 27,696 shares @ $0
Traded
Aug 6, 2026
Filed
Aug 10, 2026
SEC Form 4
View filing Trade details
Mckinnis Aric Brendan CFO, SVP Global Finance
Award
Calculated transaction value
$0 6,924 shares @ $0
Traded
Aug 6, 2026
Filed
Aug 10, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Exercise
Calculated transaction value
$0 6,031 shares @ $0
Traded
Aug 6, 2026
Filed
Aug 7, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Disposition
Calculated transaction value
$386.76K 3,357 shares @ $115.21
Traded
Aug 6, 2026
Filed
Aug 7, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Exercise
Calculated transaction value
$0 6,031 shares @ $0
Traded
Aug 6, 2026
Filed
Aug 7, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Exercise
Calculated transaction value
$0 3,644 shares @ $0
Traded
Aug 5, 2026
Filed
Aug 7, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Disposition
Calculated transaction value
$232.08K 2,028 shares @ $114.44
Traded
Aug 5, 2026
Filed
Aug 7, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Exercise
Calculated transaction value
$0 3,644 shares @ $0
Traded
Aug 5, 2026
Filed
Aug 7, 2026
SEC Form 4
View filing Trade details
Mckinnis Aric Brendan CFO, SVP Global Finance
Exercise
Calculated transaction value
$0 1,099 shares @ $0
Traded
Aug 6, 2026
Filed
Aug 7, 2026
SEC Form 4
View filing Trade details
Mckinnis Aric Brendan CFO, SVP Global Finance
Disposition
Calculated transaction value
$31.57K 274 shares @ $115.21
Traded
Aug 6, 2026
Filed
Aug 7, 2026
SEC Form 4
View filing Trade details
Mckinnis Aric Brendan CFO, SVP Global Finance
Exercise
Calculated transaction value
$0 1,099 shares @ $0
Traded
Aug 6, 2026
Filed
Aug 7, 2026
SEC Form 4
View filing Trade details
Mckinnis Aric Brendan CFO, SVP Global Finance
Disposition
Calculated transaction value
$14.88K 130 shares @ $114.44
Traded
Aug 5, 2026
Filed
Aug 7, 2026
SEC Form 4
View filing Trade details
Mckinnis Aric Brendan CFO, SVP Global Finance
Exercise
Calculated transaction value
$0 521 shares @ $0
Traded
Aug 5, 2026
Filed
Aug 7, 2026
SEC Form 4
View filing Trade details
Mckinnis Aric Brendan CFO, SVP Global Finance
Exercise
Calculated transaction value
$0 521 shares @ $0
Traded
Aug 5, 2026
Filed
Aug 7, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Sale
Calculated transaction value
$20.24K 170 shares @ $119.08
Traded
Jul 15, 2026
Filed
Jul 16, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Sale
Calculated transaction value
$193.69K 1,650 shares @ $117.39
Traded
Jul 15, 2026
Filed
Jul 16, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Sale
Calculated transaction value
$36.17K 300 shares @ $120.58
Traded
Jul 15, 2026
Filed
Jul 16, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Sale
Calculated transaction value
$121.34K 1,041 shares @ $116.56
Traded
Jul 15, 2026
Filed
Jul 16, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Sale
Calculated transaction value
$105.29K 868 shares @ $121.3
Traded
Jul 15, 2026
Filed
Jul 16, 2026
SEC Form 4
View filing Trade details
Slessor Mike CEO
Sale
Calculated transaction value
$83.46K 706 shares @ $118.21
Traded
Jul 15, 2026
Filed
Jul 16, 2026
SEC Form 4
View filing Trade details
St Dennis Thomas Director
Gift
Calculated transaction value
$0 740 shares @ $0
Traded
Jun 16, 2026
Filed
Jun 16, 2026
SEC Form 4
View filing Trade details
St Dennis Thomas Director
Sale
Calculated transaction value
$424.17K 2,800 shares @ $151.49
Traded
Jun 15, 2026
Filed
Jun 16, 2026
SEC Form 4
View filing Trade details

Showing 31 to 60 of 71 entries