AI insider buying and SEC filings, explained
C3.ai, Inc. · CIK 1577526
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$302K
Insiders who bought
1
Sold (not marked 10b5-1)
$9.1M
Planned sales (10b5-1)
$67.0M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 13, 2026 | Planned (10b5-1) | Thomas M. Siebel (CEO and Director) sold 435,363 shares at about $11.82 ($5.1M), marked as a 10b5-1 plan trade. Holdings down 38% to 722,362 shares. | SEC filing Filed Oct 14, 2026, 5:44 PM ET |
| Oct 12, 2026 | Planned (10b5-1) | Hitesh Lath (CFO) sold 20,000 shares at $12.37 ($247K), marked as a 10b5-1 plan trade. Holdings down 6% to 305,250 shares. | SEC filing Filed Oct 14, 2026, 5:03 PM ET |
| Sep 16, 2026 | Sale | Hitesh Lath (CFO) sold 21,077 shares at about $10.48 ($221K). Holdings down 5% to 371,036 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 17, 2026 |
| Sep 15–16, 2026 | Planned (10b5-1) | Thomas M. Siebel (CEO and Director) sold 444,248 shares between Sep 15 and Sep 16 at about $10.77 ($4.8M), marked as a 10b5-1 plan trade. Holdings down 38% to 722,362 shares. | SEC filing Filed Sep 17, 2026 |
| Sep 14, 2026 | Sale | Thomas M. Siebel (CEO and Director) sold 22,780 shares at about $10.56 ($241K). Holdings down 3% to 744,348 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 15, 2026 |
| Sep 2, 2026 | Sale | Thomas M. Siebel (CEO and Director) sold 16,890 shares at about $10.30 ($174K). Holdings down 2% to 738,208 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 3, 2026 |
| Aug 11, 2026 | Planned (10b5-1) | Thomas M. Siebel (CEO and Director) sold 453,314 shares at about $10.51 ($4.8M), marked as a 10b5-1 plan trade. Holdings down 39% to 722,362 shares. | SEC filing Filed Aug 13, 2026 |
| Aug 4, 2026 | Planned (10b5-1) | Hitesh Lath (CFO) sold 20,000 shares at about $10.00 ($200K), marked as a 10b5-1 plan trade. Holdings down 5% to 363,106 shares. | SEC filing Filed Aug 6, 2026 |
| Aug 3, 2026 | Sale | Thomas M. Siebel (CEO and Director) sold 139,500 shares at about $9.61 ($1.3M). Holdings down 14% to 866,196 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 4, 2026 |
| Jul 14–15, 2026 | Planned (10b5-1) | Thomas M. Siebel (CEO and Director) sold 462,565 shares between Jul 14 and Jul 15 at about $9.18 ($4.2M), marked as a 10b5-1 plan trade. Holdings down 39% to 722,362 shares. | SEC filing Filed Jul 16, 2026 |
| Jul 1, 2026 | Sale | Stephen Bradley Ehikian (CEO) sold 50,542 shares at about $9.45 ($478K). Holdings down 7% to 651,130 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jul 2, 2026 |
| Jun 30, 2026 | Planned (10b5-1) | Hitesh Lath (CFO) sold 48,619 shares at about $8.77 ($426K), marked as a 10b5-1 plan trade. Holdings down 11% to 383,106 shares. | SEC filing Filed Jul 1, 2026 |
| Jun 16, 2026 | Sale | Hitesh Lath (CFO) sold 34,210 shares at about $10.95 ($375K). Holdings down 13% to 233,106 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 17, 2026 |
| Jun 12–15, 2026 | Planned (10b5-1) | Thomas M. Siebel (CEO and Director) sold 495,575 shares between Jun 12 and Jun 15 at about $11.10 ($5.5M), marked as a 10b5-1 plan trade. Holdings down 41% to 722,362 shares. | SEC filing Filed Jun 15, 2026 |
| Jun 2, 2026 | Sale | Thomas M. Siebel (CEO and Director) sold 17,350 shares at about $11.32 ($196K). Holdings down <1% to 6,904,415 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 3, 2026 |
| May 15–18, 2026 | Planned (10b5-1) | Thomas M. Siebel (CEO and Director) sold 481,638 shares between May 15 and May 18 at about $8.70 ($4.2M), marked as a 10b5-1 plan trade. Holdings down 40% to 722,362 shares. | SEC filing Filed May 19, 2026 |
| May 4, 2026 | Sale | Thomas M. Siebel (Chair and Director) sold 27,210 shares at about $9.27 ($252K). Holdings down 4% to 748,277 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 5, 2026 |
| Apr 13–14, 2026 | Planned (10b5-1) | Thomas M. Siebel (Chair and Director) sold 491,467 shares between Apr 13 and Apr 14 at about $8.37 ($4.1M), marked as a 10b5-1 plan trade. Holdings down 40% to 722,362 shares. | SEC filing Filed Apr 15, 2026 |
| Mar 31, 2026 | Sale | Stephen Bradley Ehikian (CEO) sold 52,194 shares at about $8.22 ($429K). Holdings down 7% to 721,485 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 1, 2026 |
| Mar 27, 2026 | Sale | Jim H. Snabe (Director) sold 10,000 shares at $8.08 ($81K). Holdings down 3% to 385,000 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 31, 2026 |
| Mar 27, 2026 | Purchase (code P) | Jim H. Snabe (Director) bought 10,000 shares at $7.73 ($77K), reported as a purchase (code P). Holdings up 3% to 395,000 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 31, 2026 |
| Mar 17–18, 2026 | Planned (10b5-1) | Thomas M. Siebel (Chair and Director) sold 501,497 shares between Mar 17 and Mar 18 at about $8.78 ($4.4M), marked as a 10b5-1 plan trade. Holdings down 41% to 722,362 shares. | SEC filing Filed Mar 19, 2026 |
| Mar 16, 2026 | Sale | Hitesh Lath (CFO) sold 15,248 shares at about $8.98 ($137K). Holdings down 6% to 238,308 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 17, 2026 |
| Mar 12, 2026 | Sale | Thomas M. Siebel (Chair and Director) sold 23,435 shares at about $9.11 ($213K). Holdings down 3% to 743,693 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 13, 2026 |
| Mar 9, 2026 | Purchase (code P) | Jim H. Snabe (Director) bought 25,000 shares at $9.00 ($225K), reported as a purchase (code P). Holdings up 7% to 395,000 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 10, 2026 |
| Mar 2, 2026 | Sale | Thomas M. Siebel (Chair and Director) sold 17,655 shares at about $7.79 ($138K). Holdings down 2% to 737,443 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 3, 2026 |
| Feb 10, 2026 | Planned (10b5-1) | Thomas M. Siebel (Chair and Director) sold 511,732 shares at about $11.66 ($6.0M), marked as a 10b5-1 plan trade. Holdings down 41% to 722,362 shares. | SEC filing Filed Feb 12, 2026 |
| Feb 2, 2026 | Sale | Thomas M. Siebel (Chair and Director) sold 27,605 shares at about $10.81 ($298K). Holdings down 4% to 747,882 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 3, 2026 |
| Jan 13, 2026 | Planned (10b5-1) | Thomas M. Siebel (Chair and Director) sold 522,175 shares directly and indirectly at about $13.52 ($7.1M), marked as a 10b5-1 plan trade. Direct holdings down 23% to 722,362 shares. | SEC filing Filed Jan 15, 2026 |
| Dec 31, 2025 | Sale | Stephen Bradley Ehikian (CEO) sold 234,918 shares at about $13.56 ($3.2M). Holdings down 20% to 924,074 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 2, 2026 |
| Dec 16–17, 2025 | Planned (10b5-1) | Thomas M. Siebel (Chair and Director) sold 532,832 shares indirectly between Dec 16, 2025 and Dec 17, 2025 at about $14.33 ($7.6M), marked as a 10b5-1 plan trade. Indirect holdings down 36% to 941,845 shares. | SEC filing Filed Dec 18, 2025 |
| Dec 16, 2025 | Sale | Hitesh Lath (CFO) sold 15,042 shares at about $14.38 ($216K). Holdings down 6% to 223,120 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 17, 2025 |
| Dec 12, 2025 | Sale | Thomas M. Siebel (Chair and Director) sold 23,000 shares at about $15.94 ($367K). Holdings down 3% to 744,129 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 15, 2025 |
| Dec 2, 2025 | Sale | Thomas M. Siebel (Chair and Director) sold 17,000 shares at about $14.21 ($242K). Holdings down 52% to 15,736 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 3, 2025 |
| Nov 11, 2025 | Planned (10b5-1) | Thomas M. Siebel (Chair and Director) sold 543,706 shares indirectly at about $15.24 ($8.3M), marked as a 10b5-1 plan trade. Indirect holdings down 27% to 1,437,174 shares. | SEC filing Filed Nov 12, 2025 |
| Nov 3, 2025 | Sale | Thomas M. Siebel (Chair and Director) sold 27,545 shares at about $17.30 ($477K). Holdings down 52% to 25,580 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 4, 2025 |
53 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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