Mike Slessor Insider Trading Activity
Mike Slessor has been net-selling over the last 12 months with 0 purchases and 28 sales across 1 company.
FORM is the most-traded position with 28 trades. The largest single transaction was a sale of FORM for $2.6M on Jan 6, 2026.
Performance Scorecard
Forward stock performance after each transaction by Mike Slessor. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | -15.5% | 40% | 20 |
| 90 days | — | -49.2% | 8% | 12 |
| 120 days | — | -83.5% | 0% | 9 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersFORM · FORMFACTOR INC
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | ROLE |
|---|---|---|---|---|---|---|
| May 13, 2026 | FORM | Sell | 700 | $122.84 | $86K | CEO |
| May 13, 2026 | FORM | Sell | 1,300 | $123.72 | $161K | CEO |
| May 13, 2026 | FORM | Sell | 2,984 | $124.71 | $372K | CEO |
| May 13, 2026 | FORM | Sell | 1,388 | $125.58 | $174K | CEO |
| May 13, 2026 | FORM | Sell | 398 | $126.59 | $50K | CEO |
| May 13, 2026 | FORM | Sell | 100 | $127.47 | $13K | CEO |
| May 13, 2026 | FORM | Sell | 200 | $130.57 | $26K | CEO |
| May 13, 2026 | FORM | Sell | 66 | $135.73 | $9K | CEO |
| May 13, 2026 | FORM | Sell | 702 | $136.15 | $96K | CEO |
| Apr 15, 2026 | FORM | Sell | 1,826 | $125.24 | $229K | CEO |
| Apr 15, 2026 | FORM | Sell | 900 | $126.58 | $114K | CEO |
| Apr 15, 2026 | FORM | Sell | 2,369 | $127.65 | $302K | CEO |
| Apr 15, 2026 | FORM | Sell | 5,432 | $128.56 | $698K | CEO |
| Apr 15, 2026 | FORM | Sell | 767 | $129.22 | $99K | CEO |
| Mar 18, 2026 | FORM | Sell | 1,900 | $94.10 | $179K | CEO |
| Mar 18, 2026 | FORM | Sell | 5,495 | $95.21 | $523K | CEO |
| Mar 18, 2026 | FORM | Sell | 2,832 | $95.73 | $271K | CEO |
| Feb 18, 2026 | FORM | Sell | 834 | $92.85 | $77K | CEO |
| Feb 18, 2026 | FORM | Sell | 4,934 | $93.97 | $464K | CEO |
| Feb 18, 2026 | FORM | Sell | 2,896 | $94.79 | $275K | CEO |
| Jan 15, 2026 | FORM | Sell | 6,976 | $76.43 | $533K | CEO |
| Jan 15, 2026 | FORM | Sell | 6,112 | $77.24 | $472K | CEO |
| Jan 6, 2026 | FORM | Sell | 39,606 | $65.00 | $2.6M | CEO |
| Dec 17, 2025 | FORM | Sell | 5,606 | $56.19 | $315K | CEO |
| Dec 17, 2025 | FORM | Sell | 2,063 | $56.82 | $117K | CEO |
| Nov 19, 2025 | FORM | Sell | 4,739 | $49.65 | $235K | CEO |
| Nov 19, 2025 | FORM | Sell | 3,664 | $50.60 | $185K | CEO |
| Jul 1, 2025 | FORM | Sell | 4,000 | $34.03 | $136K | CEO |
| Jun 2, 2025 | FORM | Sell | 4,000 | $29.83 | $119K | CEO |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| FORM | FORMFACTOR INC | 29 | $8.9M |
Other insiders at FORMFACTOR INC
4 other tracked filers at FORM.