Form 4: Formfactor CEO Sells Shares
Insider Transaction (Form 4)
Mike Slessor, CEO and a Director of Formfactor Inc, sold 16,002 shares of common stock on August 14, 2026.
Summary
- Open-market sale: disposed of 2,482 Common Stock at $128.72 ($319,483) on August 14, 2026; holds 497,724 after (Direct).
- Open-market sale: disposed of 2,892 Common Stock at $129.55 ($374,659) on August 14, 2026; holds 494,832 after (Direct).
- Open-market sale: disposed of 3,282 Common Stock at $130.54 ($428,432) on August 14, 2026; holds 491,550 after (Direct).
- Open-market sale: disposed of 1,125 Common Stock at $131.65 ($148,106) on August 14, 2026; holds 490,425 after (Direct).
- Open-market sale: disposed of 5,535 Common Stock at $132.50 ($733,388) on August 14, 2026; holds 484,890 after (Direct).
- Open-market sale: disposed of 686 Common Stock at $133.33 ($91,464) on August 14, 2026; holds 484,204 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $2,095,532 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Mike Slessor — Director, Officer (CEO)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-14 | Open-market sale | Common Stock | 2,482 | $129 | $319.5K | 497,724 |
| 2026-08-14 | Open-market sale | Common Stock | 2,892 | $130 | $374.7K | 494,832 |
| 2026-08-14 | Open-market sale | Common Stock | 3,282 | $131 | $428.4K | 491,550 |
| 2026-08-14 | Open-market sale | Common Stock | 1,125 | $132 | $148.1K | 490,425 |
| 2026-08-14 | Open-market sale | Common Stock | 5,535 | $133 | $733.4K | 484,890 |
| 2026-08-14 | Open-market sale | Common Stock | 686 | $133 | $91.5K | 484,204 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-14 | Open-market sale (2,482 shares) |
| 2026-08-14 | Open-market sale (2,892 shares) |
| 2026-08-14 | Open-market sale (3,282 shares) |
| 2026-08-14 | Open-market sale (1,125 shares) |
| 2026-08-14 | Open-market sale (5,535 shares) |
| 2026-08-14 | Open-market sale (686 shares) |
Keywords
insider transaction, Form 4, FORM, FORMFACTOR INC, bearish, Mike Slessor
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