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Mike Slessor, CEO at Formfactor, sold FORM on Aug 14, 2026

Data as of Oct 16

▼ SELL$428K3,282 shares at $130.54Mike Slessor CEOFORM Formfactor Inc
Watch FORM
Traded
Aug 14, 2026
Disclosed
Aug 17, 2026
Filed
3 days after the trade

Form 4s are due within two business days.

Official filing (SEC Form 4) ↗

The price around the disclosure

Mike Slessor, CEO at Formfactor, sold FORM on Aug 14, 2026TRADEDDISCLOSED
FORMSimilar stocks (XLK — its sector index fund), rebased to FORM's price on the disclosure day
FORM since disclosure
−24.0%
after the sale
Similar stocks (XLK) since disclosure
−3.6%
XLK — its sector index fund

Change in closing price from Aug 17, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.

Our take

None of our tested rules fired on this trade.

Other trades in the same filing

  1. ▼ SELLMike Slessor CEOFORM Formfactor Inc$148Kdisclosed Aug 17 · filed 3 days after the trade
  2. ▼ SELLMike Slessor CEOFORM Formfactor Inc$375Kdisclosed Aug 17 · filed 3 days after the trade
  3. ▼ SELLMike Slessor CEOFORM Formfactor Inc$91.5Kdisclosed Aug 17 · filed 3 days after the trade
  4. ▼ SELLMike Slessor CEOFORM Formfactor Inc$319Kdisclosed Aug 17 · filed 3 days after the trade
  5. ▼ SELLMike Slessor CEOFORM Formfactor Inc$733Kdisclosed Aug 17 · filed 3 days after the trade

See every trade on FORM →