Form4insider filings, from the source

Company · CIK 0001039399 · SIC 3674 — Semiconductors & Related Devices · Nasdaq

FORMFACTOR INC · FORM

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $2.0M · 2net −$2.0M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesAug 27Sep 1Sep 6Sep 11Sep 17Sep 22Sep 27

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 16, 2026 SForm 4 →Sep 17, 7:30 pm EDTMike SlessorCEO, Director17,510$104.73$1,833,817466,694−3.62%10b5-1
Sep 3, 2026 SForm 4 →Sep 4, 4:51 pm EDTKelley Steven-WaissDirector2,100$96.10$201,81024,426−7.92%

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.