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FormFactor Inc (FORM)

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Insider transactions

A complete record of Form 4 filings tracking every share acquisition and disposal by executives, directors, and senior officers. Filterable by date range and transaction type, the table exposes the direct market actions of those with the deepest knowledge of a company's operations — providing a factual, data-driven signal of internal conviction that complements traditional fundamental and technical analysis.

Transaction date
Executive
Executive Title
Security Type
Acquisition / Disposal
Shares
Share price
Sep 16, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal8,737104.26
Sep 16, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal1,000105.8
Sep 16, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal7,773105.12
Sep 3, 2026STEVEN-WAISS, KELLEYDirectorCommon StockDisposal2,10096.1
Aug 14, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal686133.33
Aug 14, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal5,535132.5
Aug 14, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal2,482128.72
Aug 14, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal3,282130.54
Aug 14, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal1,125131.65
Aug 14, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal2,892129.55
Aug 7, 2026SLESSOR, MIKEDirector, CEOCommon StockAcquisition5,9080
Aug 7, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal78,908117.39
Aug 7, 2026SLESSOR, MIKEDirector, CEOCommon StockAcquisition141,7920
Aug 7, 2026SLESSOR, MIKEDirector, CEOPerformance-based Restricted Stock UnitsAcquisition141,7920
Aug 7, 2026SLESSOR, MIKEDirector, CEORestricted Stock UnitsDisposal5,9080
Aug 7, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal3,288117.39
Aug 7, 2026SLESSOR, MIKEDirector, CEOPerformance-based Restricted Stock UnitsDisposal141,7920
Aug 6, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceRestricted Stock UnitsAcquisition6,9240
Aug 6, 2026SLESSOR, MIKEDirector, CEORestricted Stock UnitsAcquisition27,6960
Aug 6, 2026SLESSOR, MIKEDirector, CEOCommon StockAcquisition6,0310
Aug 6, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockAcquisition1,0990
Aug 6, 2026SLESSOR, MIKEDirector, CEORestricted Stock UnitsDisposal6,0310
Aug 6, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockDisposal274115.21
Aug 6, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceRestricted Stock UnitsDisposal1,0990
Aug 6, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal3,357115.21
Aug 5, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceRestricted Stock UnitsDisposal5210
Aug 5, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockDisposal130114.44
Aug 5, 2026SLESSOR, MIKEDirector, CEOCommon StockAcquisition3,6440
Aug 5, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockAcquisition5210
Aug 5, 2026SLESSOR, MIKEDirector, CEORestricted Stock UnitsDisposal3,6440
Aug 5, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal2,028114.44
Jul 15, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal1,041116.56
Jul 15, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal170119.08
Jul 15, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal300120.58
Jul 15, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal868121.3
Jul 15, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal706118.21
Jul 15, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal1,650117.39
Jun 16, 2026ST, DENNIS THOMASDirectorCommon StockDisposal7400
Jun 15, 2026ST, DENNIS THOMASDirectorCommon StockDisposal2,800151.49
Jun 10, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal2,500122.63
Jun 10, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal767119
Jun 10, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal975121
Jun 10, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal4,220121.72
Jun 10, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal1,399117.7
Jun 10, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal400119.46
Jun 10, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal1,629123.37
Jun 2, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockDisposal193125.11
Jun 2, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceRestricted Stock UnitsDisposal7730
Jun 2, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockAcquisition7730
Jun 2, 2026RHODES, SHERIDirectorCommon StockDisposal6,328125.4
May 21, 2026OBREGON-JIMENEZ, REBECADirectorRestricted Stock UnitsDisposal3,828126.475
May 20, 2026WHITE, BRIAN CDirectorCommon StockDisposal3,250126
May 19, 2026ST, DENNIS THOMASDirectorCommon StockDisposal1,000115.84
May 15, 2026OBREGON-JIMENEZ, REBECADirectorRestricted Stock UnitsAcquisition1,3470
May 15, 2026TITINGER, JORGEDirectorCommon StockAcquisition1,3470
May 15, 2026RHODES, SHERIDirectorCommon StockAcquisition1,3470
May 15, 2026STEVEN-WAISS, KELLEYDirectorCommon StockDisposal5,400125.6
May 15, 2026WHITE, BRIAN CDirectorCommon StockAcquisition1,3470
May 15, 2026STEVEN-WAISS, KELLEYDirectorCommon StockAcquisition1,3470
May 15, 2026ST, DENNIS THOMASDirectorCommon StockAcquisition1,3470
May 13, 2026TITINGER, JORGEDirectorCommon StockDisposal4,009128.785
May 13, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal700122.84
May 13, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal700129.33
May 13, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal702136.15
May 13, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal700122.84
May 13, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal1,388125.58
May 13, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal1,300123.72
May 13, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal2,984124.71
May 13, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal66135.73
May 13, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal100127.47
May 13, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal200130.57
May 13, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal200130.57
May 13, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal398126.59
May 7, 2026SLESSOR, MIKEDirector, CEORestricted Stock UnitsDisposal5,9080
May 7, 2026SLESSOR, MIKEDirector, CEOCommon StockAcquisition5,9080
May 7, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal3,288144.68
May 6, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceRestricted Stock UnitsDisposal1,0990
May 6, 2026SLESSOR, MIKEDirector, CEORestricted Stock UnitsDisposal6,0310
May 6, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockAcquisition1,0990
May 6, 2026SLESSOR, MIKEDirector, CEOCommon StockAcquisition6,0310
May 6, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal3,357149.12
May 6, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockDisposal274149.12
May 5, 2026SLESSOR, MIKEDirector, CEOCommon StockAcquisition3,6440
May 5, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockDisposal130145
May 5, 2026SLESSOR, MIKEDirector, CEORestricted Stock UnitsDisposal3,6440
May 5, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceRestricted Stock UnitsDisposal5210
May 5, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal2,028145
May 5, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockAcquisition5210
Apr 15, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal900126.58
Apr 15, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal2,369127.65
Apr 15, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal5,432128.56
Apr 15, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal767129.22
Apr 15, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal1,826125.24
Mar 18, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal5,49595.21
Mar 18, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal1,90094.1
Mar 18, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal2,83295.73
Mar 5, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockDisposal3,46290.42
Mar 2, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockDisposal19399.7
Mar 2, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceRestricted Stock UnitsDisposal7730
Mar 2, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockAcquisition7730
Feb 24, 2026WHITE, BRIAN CDirectorCommon StockDisposal2,300100.01
Feb 18, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal83492.85
Feb 18, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal2,89694.79
Feb 18, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal4,93493.97
Feb 11, 2026BREWER, KEVIN JDirectorCommon StockDisposal3,00096.2
Feb 10, 2026STEVEN-WAISS, KELLEYDirectorCommon StockDisposal2,20093.7
Feb 10, 2026RHODES, SHERIDirectorCommon StockDisposal7,63492.609
Feb 10, 2026ST, DENNIS THOMASDirectorCommon StockDisposal1,83094.241
Feb 10, 2026ST, DENNIS THOMASDirectorCommon StockDisposal5,60193.714
Feb 9, 2026TITINGER, JORGEDirectorCommon StockDisposal2,00088.84
Feb 9, 2026SLESSOR, MIKEDirector, CEOCommon StockAcquisition5,9080
Feb 9, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal3,28894.88
Feb 9, 2026OBREGON-JIMENEZ, REBECADirectorRestricted Stock UnitsDisposal2,77095.82
Feb 9, 2026SLESSOR, MIKEDirector, CEORestricted Stock UnitsDisposal5,9080
Feb 9, 2026WHITE, BRIAN CDirectorCommon StockDisposal5,50090.95
Feb 6, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal3,35790.29
Feb 6, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceRestricted Stock UnitsDisposal1,0990
Feb 6, 2026SLESSOR, MIKEDirector, CEORestricted Stock UnitsDisposal6,0310
Feb 6, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockAcquisition1,0990
Feb 6, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockDisposal33690.29
Feb 6, 2026SLESSOR, MIKEDirector, CEOCommon StockAcquisition6,0310
Feb 5, 2026SLESSOR, MIKEDirector, CEORestricted Stock UnitsDisposal3,6440
Feb 5, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal2,09583.87
Feb 5, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockDisposal16283.87
Feb 5, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockAcquisition5210
Feb 5, 2026MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceRestricted Stock UnitsDisposal5210
Feb 5, 2026SLESSOR, MIKEDirector, CEOCommon StockAcquisition3,6440
Jan 15, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal6,11277.24
Jan 15, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal6,97676.43
Jan 6, 2026SLESSOR, MIKEDirector, CEOCommon StockDisposal39,60665
Dec 17, 2025SLESSOR, MIKEDirector, CEOCommon StockDisposal2,06356.82
Dec 17, 2025SLESSOR, MIKEDirector, CEOCommon StockDisposal5,60656.19
Dec 2, 2025STEVEN-WAISS, KELLEYDirectorCommon StockDisposal2,70055.965
Dec 2, 2025MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceRestricted Stock UnitsDisposal7730
Dec 2, 2025MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockAcquisition7730
Dec 2, 2025MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockDisposal19356.04
Nov 19, 2025SLESSOR, MIKEDirector, CEOCommon StockDisposal3,66450.6
Nov 19, 2025SLESSOR, MIKEDirector, CEOCommon StockDisposal4,73949.65
Nov 17, 2025ST, DENNIS THOMASDirectorCommon StockDisposal2,00049.847
Nov 7, 2025SLESSOR, MIKEDirector, CEOCommon StockAcquisition5,9080
Nov 7, 2025SLESSOR, MIKEDirector, CEOCommon StockDisposal3,28252.25
Nov 7, 2025SLESSOR, MIKEDirector, CEORestricted Stock UnitsDisposal5,9080
Nov 6, 2025MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceRestricted Stock UnitsAcquisition13,1880
Nov 6, 2025SLESSOR, MIKEDirector, CEOCommon StockDisposal3,35154.22
Nov 6, 2025SLESSOR, MIKEDirector, CEOCommon StockAcquisition6,031
Nov 6, 2025SLESSOR, MIKEDirector, CEORestricted Stock UnitsDisposal6,0310
Nov 5, 2025MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockDisposal13055.36
Nov 5, 2025SLESSOR, MIKEDirector, CEOCommon StockDisposal2,02555.36
Nov 5, 2025SLESSOR, MIKEDirector, CEOCommon StockAcquisition3,644
Nov 5, 2025MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceRestricted Stock UnitsDisposal5210
Nov 5, 2025SLESSOR, MIKEDirector, CEORestricted Stock UnitsDisposal3,6440
Nov 5, 2025MCKINNIS, ARIC BRENDANCFO, SVP Global FinanceCommon StockAcquisition5210
Nov 3, 2025SLESSOR, MIKEDirector, CEOCommon StockDisposal5,0000