Mike Slessor serves as Executive at FORMFACTOR INC, where they oversee executive responsibilities. Since joining the company, Mike Slessor has executed 190 insider transactions totaling $23.0M, demonstrating a bearish approach to their equity position. Their most recent transaction on Feb 9, 2026 involved exercising options for 5,908 shares valued at $0.
Mike Slessor currently holds 11,816 shares of FORMFACTOR INC (FORM), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Mike Slessor has been a net seller of FORM stock. They have purchased $0 and sold $23.0M worth of shares.
Mike Slessor's most recent insider trade was on Feb 9, 2026, when they sold 5,908 shares at $0.00 per share.
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| $94.88 |
| Discretionary |
| Feb 9, 2026 | FORM | $0 | Option Exercise | 5,908 | $N/A | Discretionary |
| Feb 6, 2026 | FORM | $0 | Option Exercise | 6,031 | $N/A | Discretionary |
| Feb 6, 2026 | FORM | $303.1K | Payment | 3,357 | $90.29 | Discretionary |
| Feb 6, 2026 | FORM | $0 | Option Exercise | 6,031 | $N/A | Discretionary |
| Feb 5, 2026 | FORM | $0 | Option Exercise | 3,644 | $N/A | Discretionary |
| Feb 5, 2026 | FORM | $175.7K | Payment | 2,095 | $83.87 | Discretionary |
| Feb 5, 2026 | FORM | $0 | Option Exercise | 3,644 | $N/A | Discretionary |
| Jan 6, 2026 | FORM | $2.6M | Sale | 39,606 | $65.00 | Discretionary |
| Dec 17, 2025 | FORM | $117.2K | Sale | 2,063 | $56.82 | Discretionary |
| Dec 17, 2025 | FORM | $315.0K | Sale | 5,606 | $56.19 | Discretionary |
| Dec 12, 2025 | BHE | $0 | Award | 2,256 | $N/A | Discretionary |
| Nov 19, 2025 | FORM | $235.3K | Sale | 4,739 | $49.65 | Discretionary |
| Nov 19, 2025 | FORM | $185.4K | Sale | 3,664 | $50.60 | Discretionary |
| Nov 7, 2025 | FORM | $0 | Option Exercise | 5,908 | $N/A | Discretionary |
| Nov 7, 2025 | FORM | $171.5K | Payment | 3,282 | $52.25 | Discretionary |
| Nov 6, 2025 | FORM | $181.7K | Payment | 3,351 | $54.22 | Discretionary |
| Nov 6, 2025 | FORM | $0 | Option Exercise | 6,031 | $N/A | Discretionary |
| Nov 5, 2025 | FORM | $0 | Option Exercise | 3,644 | $N/A | Discretionary |
| Nov 5, 2025 | FORM | $112.1K | Payment | 2,025 | $55.36 | Discretionary |
| Nov 3, 2025 | FORM | $0 | Gift | 5,000 | $N/A | Discretionary |
| Aug 7, 2025 | FORM | $91.8K | Payment | 3,282 | $27.98 | Discretionary |
| Aug 7, 2025 | FORM | $0 | Option Exercise | 5,908 | $N/A | Discretionary |
| Aug 5, 2025 | FORM | $0 | Option Exercise | 3,644 | $N/A | Discretionary |
| Aug 5, 2025 | FORM | $59.0K | Payment | 2,025 | $29.14 | Discretionary |
| Aug 1, 2025 | FORM | $0 | Option Exercise | 14,426 | $N/A | Discretionary |
| Aug 1, 2025 | FORM | $802.5K | Payment | 27,739 | $28.93 | Discretionary |
| Aug 1, 2025 | FORM | $231.8K | Payment | 8,014 | $28.93 | Discretionary |
| Aug 1, 2025 | FORM | $0 | Option Exercise | 49,935 | $N/A | Discretionary |