FormFactorFORM
Semiconductors & chip supply chain
Insider transactions
Directors, officers and 10% owners, as reported on Forms 3, 4 and 5. Grants, option exercises and shares withheld for tax are shown but not counted as buying or selling.
- Open-market buys
- 0
- Open-market sales
- 72
- Shares bought
- 0
- Shares sold
- 228,238
Past 12 months · $0.00 bought, $22.0M sold
| Filed | Insider | Transaction | Shares | Price | Value | Held after |
|---|---|---|---|---|---|---|
| traded Sep 16, 2026 | Mike SlessorCEO · Director | Open-market saleForm 4 | 1,000 | $105.80 | $105,800 | 466,694 |
| traded Sep 16, 2026 | Mike SlessorCEO · Director | Open-market saleForm 4 | 7,773 | $105.12 | $817,098 | 467,694 |
| traded Sep 16, 2026 | Mike SlessorCEO · Director | Open-market saleForm 4 | 8,737 | $104.26 | $910,920 | 475,467 |
| traded Sep 3, 2026 | Kelley StevenwaissDirector | Open-market saleForm 4 | 2,100 | $96.10 | $201,810 | 24,426 |
| traded Aug 14, 2026 | Mike SlessorCEO · Director | Open-market saleForm 4 | 2,482 | $128.72 | $319,483 | 497,724 |
| traded Aug 14, 2026 | Mike SlessorCEO · Director | Open-market saleForm 4 | 2,892 | $129.55 | $374,659 | 494,832 |
| traded Aug 14, 2026 | Mike SlessorCEO · Director | Open-market saleForm 4 | 1,125 | $131.65 | $148,106 | 490,425 |
| traded Aug 14, 2026 | Mike SlessorCEO · Director | Open-market saleForm 4 | 3,282 | $130.54 | $428,432 | 491,550 |
| traded Aug 14, 2026 | Mike SlessorCEO · Director | Open-market saleForm 4 | 686 | $133.33 | $91,464 | 484,204 |
| traded Aug 14, 2026 | Mike SlessorCEO · Director | Open-market saleForm 4 | 5,535 | $132.50 | $733,388 | 484,890 |
| traded Aug 7, 2026 | Mike SlessorCEO · Director | Option exerciseForm 4 | 141,792 | $0.00 | $0.00 | 576,494 |
| traded Aug 7, 2026 | Mike SlessorCEO · Director | Shares withheld for taxForm 4 | 78,908 | $117.39 | $9.3M | 497,586 |
| traded Aug 7, 2026 | Mike SlessorCEO · Director | Option exerciseForm 4 | 141,792 | $0.00 | $0.00 | 0 |
| traded Aug 7, 2026 | Mike SlessorCEO · Director | Shares withheld for taxForm 4 | 3,288 | $117.39 | $385,978 | 500,206 |
| traded Aug 7, 2026 | Mike SlessorCEO · Director | Grant or awardForm 4 | 141,792 | $0.00 | $0.00 | 141,792 |
| traded Aug 7, 2026 | Mike SlessorCEO · Director | Option exerciseForm 4 | 5,908 | $0.00 | $0.00 | 0 |
| traded Aug 7, 2026 | Mike SlessorCEO · Director | Option exerciseForm 4 | 5,908 | $0.00 | $0.00 | 503,494 |
| traded Aug 6, 2026 | Aric Brendan McKinnisCFO · SVP | Grant or awardForm 4 | 6,924 | $0.00 | $0.00 | 6,924 |
| traded Aug 6, 2026 | Mike SlessorCEO · Director | Grant or awardForm 4 | 27,696 | $0.00 | $0.00 | 27,696 |
| traded Aug 6, 2026 | Aric Brendan McKinnisCFO · SVP | Option exerciseForm 4 | 1,099 | $0.00 | $0.00 | 14,426 |
| traded Aug 6, 2026 | Aric Brendan McKinnisCFO · SVP | Shares withheld for taxForm 4 | 274 | $115.21 | $31,568 | 14,152 |
| traded Aug 6, 2026 | Aric Brendan McKinnisCFO · SVP | Option exerciseForm 4 | 1,099 | $0.00 | $0.00 | 9,891 |
| traded Aug 6, 2026 | Mike SlessorCEO · Director | Option exerciseForm 4 | 6,031 | $0.00 | $0.00 | 48,248 |
| traded Aug 6, 2026 | Mike SlessorCEO · Director | Shares withheld for taxForm 4 | 3,357 | $115.21 | $386,760 | 434,702 |
| traded Aug 6, 2026 | Mike SlessorCEO · Director | Option exerciseForm 4 | 6,031 | $0.00 | $0.00 | 438,059 |
| traded Aug 5, 2026 | Aric Brendan McKinnisCFO · SVP | Option exerciseForm 4 | 521 | $0.00 | $0.00 | 13,457 |
| traded Aug 5, 2026 | Aric Brendan McKinnisCFO · SVP | Shares withheld for taxForm 4 | 130 | $114.44 | $14,877 | 13,327 |
| traded Aug 5, 2026 | Aric Brendan McKinnisCFO · SVP | Option exerciseForm 4 | 521 | $0.00 | $0.00 | 2,084 |
| traded Aug 5, 2026 | Mike SlessorCEO · Director | Option exerciseForm 4 | 3,644 | $0.00 | $0.00 | 434,056 |
| traded Aug 5, 2026 | Mike SlessorCEO · Director | Shares withheld for taxForm 4 | 2,028 | $114.44 | $232,084 | 432,028 |
| traded Aug 5, 2026 | Mike SlessorCEO · Director | Option exerciseForm 4 | 3,644 | $0.00 | $0.00 | 14,576 |
| traded Jul 15, 2026 | Mike SlessorCEO · Director | Open-market saleForm 4 | 1,041 | $116.56 | $121,339 | 434,106 |
| traded Jul 15, 2026 | Mike SlessorCEO · Director | Open-market saleForm 4 | 1,650 | $117.39 | $193,694 | 432,456 |
| traded Jul 15, 2026 | Mike SlessorCEO · Director | Open-market saleForm 4 | 706 | $118.21 | $83,456 | 431,750 |
| traded Jul 15, 2026 | Mike SlessorCEO · Director | Open-market saleForm 4 | 300 | $120.58 | $36,174 | 431,280 |
| traded Jul 15, 2026 | Mike SlessorCEO · Director | Open-market saleForm 4 | 170 | $119.08 | $20,244 | 431,580 |
| traded Jul 15, 2026 | Mike SlessorCEO · Director | Open-market saleForm 4 | 868 | $121.30 | $105,288 | 430,412 |
| Dennis Thomas StDirector | GiftForm 4 | 740 | $0.00 | $0.00 | 28,333 | |
| traded Jun 15, 2026 | Dennis Thomas StDirector | Open-market saleForm 4 | 2,800 | $151.49 | $424,172 | 29,073 |
| traded Jun 10, 2026 | Mike SlessorCEO · Director | Open-market saleForm 4 | 1,399 | $117.70 | $164,662 | 445,638 |