CIK 0001039399 · Large accelerated filer
FORMFACTOR INC
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- FORM
- Exchange
- Nasdaq
- Industry
- Semiconductors & Related Devices
- FY end
- Dec 26
- Incorporated
- DE
- Entity type
- operating
- EIN
- 133711155
- Phone
- 9252904000
- Business address
- 7005 SOUTHFRONT ROAD, LIVERMORE, CA, 94551
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $3,425,065
- in 3 filings, $3.2M under 10b5-1 plans
Net −$3,425,065. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-02-06 | SLESSOR MIKE CEO | Shares withheld for taxes | −3,357 | $90.29 | $303K | 477,130 |
| 2026-02-06 | SLESSOR MIKE CEO | Option exercise · Restricted Stock Units | −6,031 | 60,310 | ||
| 2026-02-05 | McKinnis Aric Brendan CFO, SVP Global Finance | Option exercise | +521 | 13,421 | ||
| 2026-02-05 | McKinnis Aric Brendan CFO, SVP Global Finance | Shares withheld for taxes | −162 | $83.87 | $14K | 13,259 |
| 2026-02-05 | McKinnis Aric Brendan CFO, SVP Global Finance | Option exercise · Restricted Stock Units | −521 | 3,126 | ||
| 2026-02-05 | SLESSOR MIKE CEO | Option exercise | +3,644 | 476,551 | ||
| 2026-02-05 | SLESSOR MIKE CEO | Shares withheld for taxes | −2,095 | $83.87 | $176K | 474,456 |
| 2026-02-05 | SLESSOR MIKE CEO | Option exercise · Restricted Stock Units | −3,644 | 21,864 | ||
| 2026-01-15 | SLESSOR MIKE CEO | Sale 10b5-1 | −6,976 | $76.43 | $533K | 479,019 |
| 2026-01-15 | SLESSOR MIKE CEO | Sale 10b5-1 | −6,112 | $77.24 | $472K | 472,907 |
| 2026-01-06 | SLESSOR MIKE CEO | Sale 10b5-1 | −39,606 | $65.00 | $2.6M | 485,995 |
| 2025-12-17 | SLESSOR MIKE CEO | Sale 10b5-1 | −5,606 | $56.19 | $315K | 527,664 |
| 2025-12-17 | SLESSOR MIKE CEO | Sale 10b5-1 | −2,063 | $56.82 | $117K | 525,601 |
| 2025-12-02 | McKinnis Aric Brendan CFO, SVP Global Finance | Option exercise | +773 | 12,467 | ||
| 2025-12-02 | McKinnis Aric Brendan CFO, SVP Global Finance | Shares withheld for taxes | −193 | $56.04 | $11K | 12,274 |
| 2025-12-02 | McKinnis Aric Brendan CFO, SVP Global Finance | Option exercise · Restricted Stock Units | −773 | 1,546 | ||
| 2025-12-02 | STEVEN-WAISS KELLEY Director | Sale | −2,700 | $55.97 | $151K | 32,779 |
| 2025-11-19 | SLESSOR MIKE CEO | Sale 10b5-1 | −4,739 | $49.65 | $235K | 536,934 |
| 2025-11-19 | SLESSOR MIKE CEO | Sale 10b5-1 | −3,664 | $50.60 | $185K | 533,270 |
| 2025-11-17 | St Dennis Thomas Director | Sale | −2,000 | $49.85 | $100K | 38,957 |
Page 8 of 14 · 270 trades