FORMFACTOR INC
FORM
41 insider filings · Latest: Aug 14, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| May 29, 2025 | May 29 8:03 PM | THOMAS M. ST. DENNIS | Proposed Sale | 3,000 | $31.24 | $93.7K | — | View → |
| May 1, 2025 | May 1 8:02 PM | MIKE SLESSOR | Proposed Sale | 4,000 | $31.72 | $126.9K | — | View → |
| Apr 1, 2025 | Apr 1 8:03 PM | MIKE SLESSOR | Proposed Sale | 4,000 | $28.24 | $113.0K | — | View → |
| Mar 5, 2025 | Mar 5 10:47 PM | STEVEN-WAISS KELLEY | Proposed Sale | 3,870 | $31.02 | $120.0K | — | View → |
| Mar 3, 2025 | Mar 3 9:17 PM | MIKE SLESSOR | Proposed Sale | 4,000 | $33.05 | $132.2K | — | View → |
| Feb 3, 2025 | Feb 3 9:04 PM | MIKE SLESSOR | Proposed Sale | 4,000 | $38.99 | $156.0K | — | View → |
| Jan 2, 2025 | Jan 2 9:02 PM | MIKE SLESSOR | Proposed Sale | 4,000 | $44.44 | $177.8K | — | View → |
| Dec 2, 2024 | Dec 2 9:02 PM | MIKE SLESSOR | Proposed Sale | 4,000 | $40.58 | $162.3K | — | View → |
| Nov 5, 2024 | Nov 5 10:01 PM | St Dennis Thomas | Proposed Sale | 3,100 | $39.11 | $121.2K | — | View → |
| Nov 1, 2024 | Nov 1 8:27 PM | MIKE SLESSOR | Proposed Sale | 4,000 | $38.81 | $155.2K | — | View → |
| Oct 1, 2024 | Oct 1 8:17 PM | MIKE SLESSOR | Proposed Sale | 4,000 | $45.28 | $181.1K | — | View → |
| Sep 3, 2024 | Sep 3 8:23 PM | MIKE SLESSOR | Proposed Sale | 4,000 | $46.31 | $185.2K | — | View → |
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Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| Aug 7, 2026 | Aug 10 10:58 PM | Mike SlessorDirector, CEO | Grant/Award | 141,792 | $0.00 | 141,792(D) | View → |
| Aug 7, 2026 | Aug 10 10:58 PM | Mike SlessorDirector, CEO | Option Exercise | 147,700 | $0.00 | 0(D) | View → |
| Aug 6, 2026 | Aug 10 10:58 PM | Mike SlessorDirector, CEO | Grant/Award | 27,696 | $0.00 | 27,696(D) | View → |
| Aug 6, 2026 | Aug 10 10:44 PM | Aric Brendan MckinnisCFO, SVP Global Finance | Grant/Award | 6,924 | $0.00 | 6,924(D) | View → |
| Aug 6, 2026 | Aug 7 9:56 PM | Mike SlessorDirector, CEO | Option Exercise | 6,031 | $0.00 | 48,248(D) | View → |
| Aug 5, 2026 | Aug 7 9:56 PM | Mike SlessorDirector, CEO | Option Exercise | 3,644 | $0.00 | 14,576(D) | View → |
| Aug 6, 2026 | Aug 7 9:49 PM | Aric Brendan MckinnisCFO, SVP Global Finance | Option Exercise | 1,099 | $0.00 | 9,891(D) | View → |
| Aug 5, 2026 | Aug 7 9:49 PM | Aric Brendan MckinnisCFO, SVP Global Finance | Option Exercise | 521 | $0.00 | 2,084(D) | View → |
| Jun 2, 2026 | Jun 4 10:22 PM | Aric Brendan MckinnisCFO, SVP Global Finance | Option Exercise | 773 | $0.00 | 0(D) | View → |
| May 7, 2026 | May 8 8:52 PM | Mike SlessorDirector, CEO | Option Exercise | 5,908 | $0.00 | 5,908(D) | View → |
| May 6, 2026 | May 7 10:38 PM | Mike SlessorDirector, CEO | Option Exercise | 6,031 | $0.00 | 54,279(D) | View → |
| May 5, 2026 | May 7 10:38 PM | Mike SlessorDirector, CEO | Option Exercise | 3,644 | $0.00 | 18,220(D) | View → |
| May 6, 2026 | May 7 10:36 PM | Aric Brendan MckinnisCFO, SVP Global Finance | Option Exercise | 1,099 | $0.00 | 10,990(D) | View → |
| May 5, 2026 | May 7 10:36 PM | Aric Brendan MckinnisCFO, SVP Global Finance | Option Exercise | 521 | $0.00 | 2,605(D) | View → |
| Mar 2, 2026 | Mar 3 11:17 PM | Aric Brendan MckinnisCFO, SVP Global Finance | Option Exercise | 773 | $0.00 | 773(D) | View → |
| Feb 9, 2026 | Feb 11 11:21 PM | Mike SlessorDirector, CEO | Option Exercise | 5,908 | $0.00 | 11,816(D) | View → |
| Feb 6, 2026 | Feb 9 11:49 PM | Aric Brendan MckinnisCFO, SVP Global Finance | Option Exercise | 1,099 | $0.00 | 12,089(D) | View → |
| Feb 5, 2026 | Feb 9 11:49 PM | Aric Brendan MckinnisCFO, SVP Global Finance | Option Exercise | 521 | $0.00 | 3,126(D) | View → |
| Feb 6, 2026 | Feb 9 11:46 PM | Mike SlessorDirector, CEO | Option Exercise | 6,031 | $0.00 | 60,310(D) | View → |
| Feb 5, 2026 | Feb 9 11:46 PM | Mike SlessorDirector, CEO | Option Exercise | 3,644 | $0.00 | 21,864(D) | View → |