Mike Slessor sold $973k of FORM
CEO at FORMFACTOR INC. 10,227 shares at an average of $95.15, traded Mar 18, 2026, filed Mar 18, 2026.
Score components
- +25RoleCEO
- +25Trade size$973k at market
- 0Share of holdings soldSold 2.2% of holdings
- +8Cluster2 insiders selling within 14 days
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001628280-26-019545, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Mar 18, 2026 | SOpen-market sale Common Stock10b5-1 | -1,900 | $94.10 | $179k | 469,186 | Mar 18, 2026 |
| Mar 18, 2026 | SOpen-market sale Common Stock10b5-1 | -5,495 | $95.21 | $523k | 463,691 | Mar 18, 2026 |
| Mar 18, 2026 | SOpen-market sale Common Stock10b5-1 | -2,832 | $95.73 | $271k | 460,859 | Mar 18, 2026 |
Related signals
Other insiders at FORMFACTOR INC and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 38Weak | FORMFACTOR INC | Mike Slessor CEO | $1.8M 17,510 shares | -4% | |
| 35Weak | FORMFACTOR INC | Kelley Steven-Waiss director | $202k 2,100 shares | -8% | |
| 36Weak | FORMFACTOR INC | Aric Brendan McKinnis CFO, SVP Global Finance | $313k 3,462 shares | -24% | |
| 48Moderate | FORMFACTOR INC | Brian C White director | $230k 2,300 shares | -18% | |
| 42Moderate | FORMFACTOR INC | Mike Slessor CEO | $816k 8,664 shares | -2% | |
| 54Moderate | FORMFACTOR INC | Kevin J Brewer director | $289k 3,000 shares | -27% | |
| 42Moderate | FORMFACTOR INC | Kelley Steven-Waiss director | $206k 2,200 shares | -7% | |
| 61Notable | FORMFACTOR INC | Sheri Rhodes director | $707k 7,634 shares | -42% | |
| 56Moderate | FORMFACTOR INC | Thomas St Dennis director | $697k 7,431 shares | -19% | |
| 47Moderate | FORMFACTOR INC | Jorge Titinger director | $178k 2,000 shares | -10% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.