Thomas M Siebel sold $4.2M of AI
CEO and Chairman of the Board at C3.ai, Inc.. 481,638 shares at an average of $8.70, traded May 15, 2026, filed May 19, 2026.
Score components
- +25RoleCEO
- +25Trade size$4.2M at market
- +10Share of holdings soldSold 44% of holdings
- 0ClusterNo other insider selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
- -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.
This signal so far: 1m +16.6%, 3m +11.8%, 6m -.
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 0001577526-26-000049, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| May 15, 2026 | MOption exercise Class A Common Stock10b5-1 | +369,624 | $2.04 | $754k | 1,091,986 | May 19, 2026 |
| May 15, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -369,624 | $8.72 | $3.2M | 722,362 | May 19, 2026 |
| May 18, 2026 | MOption exercise Class A Common Stock10b5-1 | +112,014 | $2.04 | $229k | 834,376 | May 19, 2026 |
| May 18, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -112,014 | $8.65 | $969k | 722,362 | May 19, 2026 |
| May 15, 2026 | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -369,624 | $0.00 | $0 | 913,094 | May 19, 2026 |
| May 18, 2026 | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -112,014 | $0.00 | $0 | 801,080 | May 19, 2026 |
Related signals
Other insiders at C3.ai, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 33Weak | C3.ai, Inc. | Thomas M Siebel CEO and Chairman of the Board | $4.8M 444,248 shares | -44% | |
| 27Weak | C3.ai, Inc. | Hitesh Lath CHIEF FINANCIAL OFFICER | $221k 21,077 shares | -5% | |
| 31Weak | C3.ai, Inc. | Thomas M Siebel CEO and Chairman of the Board | $241k 22,780 shares | -3% | |
| 29Weak | C3.ai, Inc. | Thomas M Siebel CEO and Chairman of the Board | $174k 16,890 shares | -2% | |
| 33Weak | C3.ai, Inc. | Thomas M Siebel CEO and Chairman of the Board | $4.8M 453,314 shares | -39% | |
| 22Weak | C3.ai, Inc. | Hitesh Lath CHIEF FINANCIAL OFFICER | $200k 20,000 shares | -5% | |
| 48Moderate | C3.ai, Inc. | Thomas M Siebel CEO and Chairman of the Board | $1.3M 139,500 shares | -14% | |
| 40Moderate | C3.ai, Inc. | Thomas M Siebel CEO and Chairman of the Board | $4.2M 462,565 shares | -47% | |
| 58Moderate | C3.ai, Inc. | Stephen Bradley Ehikian Chief Executive Officer | $478k 50,542 shares | -7% | |
| 39Weak | C3.ai, Inc. | Hitesh Lath CHIEF FINANCIAL OFFICER | $426k 48,619 shares | -11% |
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.