St Dennis Thomas Insider Trading Activity
St Dennis Thomas has been net-selling over the last 12 months with 0 purchases and 6 sales across 3 different companies.
FORM is the most-traded position with 4 trades. The largest single transaction was a sale of FORM for $525K on Feb 10, 2026.
Performance Scorecard
Forward stock performance after each transaction by St Dennis Thomas. 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 | — | -1.6% | 50% | 4 |
| 90 days | — | -51.8% | 25% | 4 |
| 120 days | — | -51.5% | 0% | 2 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | ROLE |
|---|---|---|---|---|---|---|
| May 22, 2026 | ACLS | Sell | 900 | $155.37 | $140K | Director |
| May 19, 2026 | FORM | Sell | 1,000 | $115.84 | $116K | Director |
| May 11, 2026 | VECO | Sell | 1,400 | $61.93 | $87K | Director |
| Feb 10, 2026 | FORM | Sell | 5,601 | $93.71 | $525K | Director |
| Feb 10, 2026 | FORM | Sell | 1,830 | $94.24 | $172K | Director |
| Nov 17, 2025 | FORM | Sell | 2,000 | $49.85 | $100K | Director |
| May 29, 2025 | FORM | Sell | 3,000 | $31.24 | $94K | Director |
Top Companies Traded
Other insiders at FORMFACTOR INC
4 other tracked filers at FORM.