MetaCap

FormFactor FormFactor Insider Trades

NASDAQ: FORMTechnologySemiconductorsUSD

139.67+2.54 (+1.85%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Last 12 months

Purchases
0 · $0
Sales
62 · $17.19M
Shares bought / sold
0 / 152.77K
Net activity
Net selling $17.2 million

FormFactor FormFactor insider activity

Over the last 12 months, FormFactor FormFactor insiders reported 97 transactions on SEC Form 4: 0 open-market purchases and 62 sales. Insiders bought $0 and sold $17.2 million worth of stock, for net insider selling of $17.2 million. The largest seller was SLESSOR MIKE, with $10.4 million in reported sales.

The most recent filing shows SLESSOR MIKE (CEO) selling 8,737 shares at $104.26 on Sep 16, 2026. Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put FORM's ownership changes in context.

Summary generated from market data by MetaCap's automated system. Methodology

FORM insider transactions

FormFactor FormFactor insider transactions
DateInsiderTypeSharesValueFiling
Sep 16, 2026SLESSOR MIKECEOSale1,000$105.80KForm 4
Sep 16, 2026SLESSOR MIKECEOSale7,773$817.10KForm 4
Sep 16, 2026SLESSOR MIKECEOSale8,737$910.92KForm 4
Sep 3, 2026STEVEN-WAISS KELLEYDirectorSale2,100$201.81KForm 4
Aug 14, 2026SLESSOR MIKECEOSale686$91.46KForm 4
Aug 14, 2026SLESSOR MIKECEOSale5,535$733.39KForm 4
Aug 14, 2026SLESSOR MIKECEOSale1,125$148.11KForm 4
Aug 14, 2026SLESSOR MIKECEOSale3,282$428.43KForm 4
Aug 14, 2026SLESSOR MIKECEOSale2,892$374.66KForm 4
Aug 14, 2026SLESSOR MIKECEOSale2,482$319.48KForm 4
Aug 7, 2026SLESSOR MIKECEOTax withholding3,288$385.98KForm 4
Aug 7, 2026SLESSOR MIKECEOOption exercise5,908—Form 4
Aug 7, 2026SLESSOR MIKECEOTax withholding78,908$9.26MForm 4
Aug 7, 2026SLESSOR MIKECEOOption exercise141,792—Form 4
Aug 6, 2026SLESSOR MIKECEOTax withholding3,357$386.76KForm 4
Aug 6, 2026SLESSOR MIKECEOOption exercise6,031—Form 4
Aug 6, 2026McKinnis Aric BrendanCFO, SVP Global FinanceTax withholding274$31.57KForm 4
Aug 6, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise1,099—Form 4
Aug 5, 2026SLESSOR MIKECEOTax withholding2,028$232.08KForm 4
Aug 5, 2026SLESSOR MIKECEOOption exercise3,644—Form 4
Aug 5, 2026McKinnis Aric BrendanCFO, SVP Global FinanceTax withholding130$14.88KForm 4
Aug 5, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise521—Form 4
Jul 15, 2026SLESSOR MIKECEOSale868$105.29KForm 4
Jul 15, 2026SLESSOR MIKECEOSale300$36.17KForm 4
Jul 15, 2026SLESSOR MIKECEOSale170$20.24KForm 4
Jul 15, 2026SLESSOR MIKECEOSale706$83.46KForm 4
Jul 15, 2026SLESSOR MIKECEOSale1,650$193.69KForm 4
Jul 15, 2026SLESSOR MIKECEOSale1,041$121.34KForm 4
Jun 16, 2026St Dennis ThomasDirectorGift740—Form 4
Jun 15, 2026St Dennis ThomasDirectorSale2,800$424.17KForm 4
Jun 10, 2026SLESSOR MIKECEOSale1,629$200.97KForm 4
Jun 10, 2026SLESSOR MIKECEOSale2,500$306.57KForm 4
Jun 10, 2026SLESSOR MIKECEOSale4,220$513.66KForm 4
Jun 10, 2026SLESSOR MIKECEOSale975$117.97KForm 4
Jun 10, 2026SLESSOR MIKECEOSale400$47.78KForm 4
Jun 10, 2026SLESSOR MIKECEOSale767$91.27KForm 4
Jun 10, 2026SLESSOR MIKECEOSale1,399$164.66KForm 4
Jun 2, 2026Rhodes SheriDirectorSale6,328$793.53KForm 4
Jun 2, 2026McKinnis Aric BrendanCFO, SVP Global FinanceTax withholding193$24.15KForm 4
Jun 2, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise773—Form 4
May 21, 2026Obregon-Jimenez RebecaDirectorSale3,828$484.15KForm 4
May 20, 2026WHITE BRIAN CDirectorSale3,250$409.50KForm 4
May 19, 2026St Dennis ThomasDirectorSale1,000$115.84KForm 4
May 15, 2026STEVEN-WAISS KELLEYDirectorSale5,400$678.24KForm 4
May 15, 2026WHITE BRIAN CDirectorAward1,347—Form 4
May 15, 2026Titinger JorgeDirectorAward1,347—Form 4
May 15, 2026STEVEN-WAISS KELLEYDirectorAward1,347—Form 4
May 15, 2026Rhodes SheriDirectorAward1,347—Form 4
May 15, 2026St Dennis ThomasDirectorAward1,347—Form 4
May 15, 2026Obregon-Jimenez RebecaDirectorAward1,347—Form 4
May 13, 2026SLESSOR MIKECEOSale702$95.58KForm 4
May 13, 2026SLESSOR MIKECEOSale66$8.96KForm 4
May 13, 2026SLESSOR MIKECEOSale200$26.53KForm 4
May 13, 2026SLESSOR MIKECEOSale200$26.11KForm 4
May 13, 2026SLESSOR MIKECEOSale700$90.53KForm 4
May 13, 2026SLESSOR MIKECEOSale700$89.96KForm 4
May 13, 2026SLESSOR MIKECEOSale100$12.75KForm 4
May 13, 2026SLESSOR MIKECEOSale398$50.38KForm 4
May 13, 2026SLESSOR MIKECEOSale1,388$174.31KForm 4
May 13, 2026SLESSOR MIKECEOSale2,984$372.13KForm 4
May 13, 2026SLESSOR MIKECEOSale1,300$160.84KForm 4
May 13, 2026SLESSOR MIKECEOSale700$85.99KForm 4
May 13, 2026Titinger JorgeDirectorSale4,009$516.30KForm 4
May 7, 2026SLESSOR MIKECEOTax withholding3,288$475.71KForm 4
May 7, 2026SLESSOR MIKECEOOption exercise5,908—Form 4
May 6, 2026McKinnis Aric BrendanCFO, SVP Global FinanceTax withholding274$40.86KForm 4
May 6, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise1,099—Form 4
May 6, 2026SLESSOR MIKECEOTax withholding3,357$500.60KForm 4
May 6, 2026SLESSOR MIKECEOOption exercise6,031—Form 4
May 5, 2026McKinnis Aric BrendanCFO, SVP Global FinanceTax withholding130$18.85KForm 4
May 5, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise521—Form 4
May 5, 2026SLESSOR MIKECEOTax withholding2,028$294.06KForm 4
May 5, 2026SLESSOR MIKECEOOption exercise3,644—Form 4
Apr 15, 2026SLESSOR MIKECEOSale767$99.11KForm 4
Apr 15, 2026SLESSOR MIKECEOSale5,432$698.34KForm 4
Apr 15, 2026SLESSOR MIKECEOSale2,369$302.40KForm 4
Apr 15, 2026SLESSOR MIKECEOSale900$113.92KForm 4
Apr 15, 2026SLESSOR MIKECEOSale1,826$228.69KForm 4
Mar 18, 2026SLESSOR MIKECEOSale2,832$271.11KForm 4
Mar 18, 2026SLESSOR MIKECEOSale5,495$523.18KForm 4
Mar 18, 2026SLESSOR MIKECEOSale1,900$178.79KForm 4
Mar 5, 2026McKinnis Aric BrendanCFO, SVP Global FinanceSale3,462$313.03KForm 4
Mar 2, 2026McKinnis Aric BrendanCFO, SVP Global FinanceTax withholding193$19.24KForm 4
Mar 2, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise773—Form 4
Feb 24, 2026WHITE BRIAN CDirectorSale2,300$230.02KForm 4
Feb 18, 2026SLESSOR MIKECEOSale2,896$274.51KForm 4
Feb 18, 2026SLESSOR MIKECEOSale4,934$463.65KForm 4
Feb 18, 2026SLESSOR MIKECEOSale834$77.44KForm 4
Feb 11, 2026BREWER KEVIN JDirectorSale3,000$288.60KForm 4
Feb 10, 2026STEVEN-WAISS KELLEYDirectorSale2,200$206.14KForm 4
Feb 10, 2026Rhodes SheriDirectorSale7,634$706.97KForm 4
Feb 10, 2026St Dennis ThomasDirectorSale1,830$172.46KForm 4
Feb 10, 2026St Dennis ThomasDirectorSale5,601$524.89KForm 4
Feb 9, 2026WHITE BRIAN CDirectorSale5,500$500.23KForm 4
Feb 9, 2026Obregon-Jimenez RebecaDirectorSale2,770$265.42KForm 4
Feb 9, 2026SLESSOR MIKECEOTax withholding3,288$311.97KForm 4
Feb 9, 2026SLESSOR MIKECEOOption exercise5,908—Form 4

Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4

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