Thomas M Siebel sold $4.4M of AI
Executive Chairman at C3.ai, Inc.. 501,497 shares at an average of $8.78, traded Mar 17, 2026, filed Mar 19, 2026.
Score components
- +20RoleChair
- +25Trade size$4.4M at market
- +10Share of holdings soldSold 50% of holdings
- +15Cluster4 insiders 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 +6.6%, 3m +18.8%, 6m +24.3%.
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 0001577526-26-000032, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Mar 17, 2026 | MOption exercise Class A Common Stock10b5-1 | +282,203 | $2.04 | $576k | 1,004,565 | Mar 19, 2026 |
| Mar 17, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -282,203 | $8.86 | $2.5M | 722,362 | Mar 19, 2026 |
| Mar 18, 2026 | MOption exercise Class A Common Stock10b5-1 | +219,294 | $2.04 | $447k | 941,656 | Mar 19, 2026 |
| Mar 18, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -219,294 | $8.67 | $1.9M | 722,362 | Mar 19, 2026 |
| Mar 17, 2026 | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -282,203 | $0.00 | $0 | 1,993,479 | Mar 19, 2026 |
| Mar 18, 2026 | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -219,294 | $0.00 | $0 | 1,774,185 | Mar 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% | |
| 35Weak | C3.ai, Inc. | Hitesh Lath CHIEF FINANCIAL OFFICER | $375k 34,210 shares | -13% | |
| 43Moderate | C3.ai, Inc. | Thomas M Siebel CEO and Chairman of the Board | $5.5M 495,575 shares | -65% | |
| 30Weak | C3.ai, Inc. | Thomas M Siebel CEO and Chairman of the Board | $196k 17,350 shares | -0% | |
| 25Weak | C3.ai, Inc. | Thomas M Siebel CEO and Chairman of the Board | $4.2M 481,638 shares | -44% | |
| 18Weak | AIsell C3.ai, Inc. | Thomas M Siebel Executive Chairman | $252k 27,210 shares | -4% | |
| 28Weak | C3.ai, Inc. | Thomas M Siebel Executive Chairman | $4.1M 491,467 shares | -47% |
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.