Arkolith/Insider Trading/FORM

FORM Insider Trading

Formfactor Inc · full profile →Last filing Jul 15, 2026
Net Selling · 180d
Open-Market Buys (180d)
$0
0 insiders
Open-Market Sells (180d)
$13.2M
9 insiders
Net Insider Flow
-$13.2M
open market, 180d
Reporting Insiders
9
53 P/S transactions
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Build on these Form 4 transactions

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Recent Form 4 Transactions

100 shown
DateInsiderRoleActionSharesPriceValue
Jul 15, 2026Slessor MikeCEO, DirectorSell(S)1K$116.56$121K
Jul 15, 2026Slessor MikeCEO, DirectorSell(S)2K$117.39$194K
Jul 15, 2026Slessor MikeCEO, DirectorSell(S)706$118.21$83K
Jul 15, 2026Slessor MikeCEO, DirectorSell(S)170$119.08$20K
Jul 15, 2026Slessor MikeCEO, DirectorSell(S)300$120.58$36K
Jul 15, 2026Slessor MikeCEO, DirectorSell(S)868$121.30$105K
Jun 16, 2026St Dennis ThomasDirectorGift(G)740—$0
Jun 15, 2026St Dennis ThomasDirectorSell(S)3K$151.49$424K
Jun 10, 2026Slessor MikeCEO, DirectorSell(S)1K$117.70$165K
Jun 10, 2026Slessor MikeCEO, DirectorSell(S)767$119.00$91K
Jun 10, 2026Slessor MikeCEO, DirectorSell(S)400$119.46$48K
Jun 10, 2026Slessor MikeCEO, DirectorSell(S)975$121.00$118K
Jun 10, 2026Slessor MikeCEO, DirectorSell(S)4K$121.72$514K
Jun 10, 2026Slessor MikeCEO, DirectorSell(S)3K$122.63$307K
Jun 10, 2026Slessor MikeCEO, DirectorSell(S)2K$123.37$201K
Jun 2, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise(M)773—$0
Jun 2, 2026McKinnis Aric BrendanCFO, SVP Global FinanceTax withholding(F)193$125.11$24K
Jun 2, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise(M)773—$0
Jun 2, 2026Rhodes SheriDirectorSell(S)6K$125.40$794K
May 21, 2026Obregon-Jimenez RebecaDirectorSell(S)4K$126.48$484K
May 20, 2026White Brian CDirectorSell(S)3K$126.00$410K
May 19, 2026St Dennis ThomasDirectorSell(S)1K$115.84$116K
May 15, 2026Steven-Waiss KelleyDirectorSell(S)5K$125.60$678K
May 15, 2026Steven-Waiss KelleyDirectorGrant(A)1K—$0
May 15, 2026St Dennis ThomasDirectorGrant(A)1K—$0
May 15, 2026Rhodes SheriDirectorGrant(A)1K—$0
May 15, 2026Obregon-Jimenez RebecaDirectorGrant(A)1K—$0
May 15, 2026White Brian CDirectorGrant(A)1K—$0
May 15, 2026Titinger JorgeDirectorGrant(A)1K—$0
May 13, 2026Slessor MikeCEO, DirectorSell(S)700$122.84$86K
May 13, 2026Slessor MikeCEO, DirectorSell(S)1K$123.72$161K
May 13, 2026Slessor MikeCEO, DirectorSell(S)3K$124.71$372K
May 13, 2026Slessor MikeCEO, DirectorSell(S)1K$125.58$174K
May 13, 2026Slessor MikeCEO, DirectorSell(S)398$126.59$50K
May 13, 2026Slessor MikeCEO, DirectorSell(S)100$127.47$13K
May 13, 2026Slessor MikeCEO, DirectorSell(S)700$128.52$90K
May 13, 2026Slessor MikeCEO, DirectorSell(S)700$129.33$91K
May 13, 2026Slessor MikeCEO, DirectorSell(S)200$130.57$26K
May 13, 2026Slessor MikeCEO, DirectorSell(S)200$132.63$27K
May 13, 2026Slessor MikeCEO, DirectorSell(S)66$135.73$9K
May 13, 2026Slessor MikeCEO, DirectorSell(S)702$136.15$96K
May 13, 2026Titinger JorgeDirectorSell(S)4K$128.79$516K
May 7, 2026Slessor MikeCEO, DirectorOption exercise(M)6K—$0
May 7, 2026Slessor MikeCEO, DirectorTax withholding(F)3K$144.68$476K
May 7, 2026Slessor MikeCEO, DirectorOption exercise(M)6K—$0
May 6, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise(M)1K—$0
May 6, 2026McKinnis Aric BrendanCFO, SVP Global FinanceTax withholding(F)274$149.12$41K
May 6, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise(M)1K—$0
May 6, 2026Slessor MikeCEO, DirectorOption exercise(M)6K—$0
May 6, 2026Slessor MikeCEO, DirectorTax withholding(F)3K$149.12$501K
May 6, 2026Slessor MikeCEO, DirectorOption exercise(M)6K—$0
May 5, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise(M)521—$0
May 5, 2026McKinnis Aric BrendanCFO, SVP Global FinanceTax withholding(F)130$145.00$19K
May 5, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise(M)521—$0
May 5, 2026Slessor MikeCEO, DirectorOption exercise(M)4K—$0
May 5, 2026Slessor MikeCEO, DirectorTax withholding(F)2K$145.00$294K
May 5, 2026Slessor MikeCEO, DirectorOption exercise(M)4K—$0
Apr 15, 2026Slessor MikeCEO, DirectorSell(S)2K$125.24$229K
Apr 15, 2026Slessor MikeCEO, DirectorSell(S)900$126.58$114K
Apr 15, 2026Slessor MikeCEO, DirectorSell(S)2K$127.65$302K
Apr 15, 2026Slessor MikeCEO, DirectorSell(S)5K$128.56$698K
Apr 15, 2026Slessor MikeCEO, DirectorSell(S)767$129.22$99K
Mar 18, 2026Slessor MikeCEO, DirectorSell(S)2K$94.10$179K
Mar 18, 2026Slessor MikeCEO, DirectorSell(S)3K$95.73$271K
Mar 18, 2026Slessor MikeCEO, DirectorSell(S)5K$95.21$523K
Mar 5, 2026McKinnis Aric BrendanCFO, SVP Global FinanceSell(S)3K$90.42$313K
Mar 2, 2026McKinnis Aric BrendanCFO, SVP Global FinanceTax withholding(F)193$99.70$19K
Mar 2, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise(M)773—$0
Mar 2, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise(M)773—$0
Feb 24, 2026White Brian CDirectorSell(S)2K$100.01$230K
Feb 18, 2026Slessor MikeCEO, DirectorSell(S)834$92.85$77K
Feb 18, 2026Slessor MikeCEO, DirectorSell(S)5K$93.97$464K
Feb 18, 2026Slessor MikeCEO, DirectorSell(S)3K$94.79$275K
Feb 11, 2026Brewer Kevin JDirectorSell(S)3K$96.20$289K
Feb 10, 2026Steven-Waiss KelleyDirectorSell(S)2K$93.70$206K
Feb 10, 2026Rhodes SheriDirectorSell(S)8K$92.61$707K
Feb 10, 2026St Dennis ThomasDirectorSell(S)6K$93.71$525K
Feb 10, 2026St Dennis ThomasDirectorSell(S)2K$94.24$172K
Feb 9, 2026Titinger JorgeDirectorSell(S)2K$88.84$178K
Feb 9, 2026White Brian CDirectorSell(S)6K$90.95$500K
Feb 9, 2026Obregon-Jimenez RebecaDirectorSell(S)3K$95.82$265K
Feb 9, 2026Slessor MikeCEO, DirectorOption exercise(M)6K—$0
Feb 9, 2026Slessor MikeCEO, DirectorTax withholding(F)3K$94.88$312K
Feb 9, 2026Slessor MikeCEO, DirectorOption exercise(M)6K—$0
Feb 6, 2026Slessor MikeCEO, DirectorTax withholding(F)3K$90.29$303K
Feb 6, 2026Slessor MikeCEO, DirectorOption exercise(M)6K—$0
Feb 6, 2026Slessor MikeCEO, DirectorOption exercise(M)6K—$0
Feb 6, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise(M)1K—$0
Feb 6, 2026McKinnis Aric BrendanCFO, SVP Global FinanceTax withholding(F)336$90.29$30K
Feb 6, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise(M)1K—$0
Feb 5, 2026Slessor MikeCEO, DirectorOption exercise(M)4K—$0
Feb 5, 2026Slessor MikeCEO, DirectorTax withholding(F)2K$83.87$176K
Feb 5, 2026Slessor MikeCEO, DirectorOption exercise(M)4K—$0
Feb 5, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise(M)521—$0
Feb 5, 2026McKinnis Aric BrendanCFO, SVP Global FinanceTax withholding(F)162$83.87$14K
Feb 5, 2026McKinnis Aric BrendanCFO, SVP Global FinanceOption exercise(M)521—$0
Jan 15, 2026Slessor MikeCEO, DirectorSell(S)6K$77.24$472K
Jan 15, 2026Slessor MikeCEO, DirectorSell(S)7K$76.43$533K
Jan 6, 2026Slessor MikeCEO, DirectorSell(S)40K$65.00$2.6M
Dec 17, 2025Slessor MikeCEO, DirectorSell(S)6K$56.19$315K

Data Source

Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.

Coverage: Form 4 filings indexed 2021-01-04 → 2026-07-20. Earlier history is backfilling; this window widens as it deepens.

Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).