Thomas M Siebel sold $4.8M of AI
CEO and Chairman of the Board at C3.ai, Inc.. 444,248 shares at an average of $10.77, traded Sep 15, 2026, filed Sep 17, 2026.
Score components
- +25RoleCEO
- +25Trade size$4.8M at market
- +10Share of holdings soldSold 44% of holdings
- +8Cluster2 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.
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 0001577526-26-000130, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 15, 2026 | MOption exercise Class A Common Stock10b5-1 | +282,001 | $3.90 | $1.1M | 1,004,363 | 25 d ago |
| Sep 15, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -282,001 | $10.90 | $3.1M | 722,362 | 25 d ago |
| Sep 16, 2026 | MOption exercise Class A Common Stock10b5-1 | +162,247 | $3.90 | $633k | 884,609 | 25 d ago |
| Sep 16, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -162,247 | $10.54 | $1.7M | 722,362 | 25 d ago |
| Sep 15, 2026 | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -282,001 | $0.00 | $0 | 2,131,195 | 25 d ago |
| Sep 16, 2026 | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -162,247 | $0.00 | $0 | 1,968,948 | 25 d ago |
Related signals
Other insiders at C3.ai, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 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% | |
| 38Weak | C3.ai, Inc. | Thomas M Siebel Executive Chairman | $9.8M 566,125 shares | -18% | |
| 42Moderate | C3.ai, Inc. | Hitesh Lath CHIEF FINANCIAL OFFICER | $797k 46,881 shares | -18% | |
| 58Moderate | C3.ai, Inc. | Thomas M Siebel Executive Chairman | $1.5M 92,000 shares | -51% | |
| 47Moderate | C3.ai, Inc. | Thomas M Siebel Executive Chairman | $284k 17,200 shares | -53% | |
| 35Weak | C3.ai, Inc. | Thomas M Siebel CHIEF EXECUTIVE OFFICER | $9.7M 577,678 shares | -16% | |
| 55Moderate | AIsell C3.ai, Inc. | Thomas M Siebel CHIEF EXECUTIVE OFFICER | $7.7M 336,000 shares | -51% | |
| 35Weak | C3.ai, Inc. | Thomas M Siebel CHIEF EXECUTIVE OFFICER | $17M 589,468 shares | -15% |
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.