SIEBEL THOMAS M — SEC Form 4 filings
SEC reporting owner CIK 1031530. 49 Form 4 filings on record with FilingPulse; latest filed 2026-09-17.
Transaction summary — filings shown
Covers all 49 filings on record, filed 2024-02-05 to 2026-09-17. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 66 legs across 37 filings — 12,376,212 shares, $220,676,755 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 177.
- Largest priced transaction: sale of 575,874 shares @ $28.56 ($16,446,961) in C3.ai, Inc., filed 2025-07-22.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| C3.ai, Inc. (AI) | CEO and Chairman of the Board, Director, 10% owner | 49 | — | 66 legs · 12,376,212 sh · $220,676,755 | 177 |
Form 4 filings — SIEBEL THOMAS M
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-17 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 282,001 @ $3.90 · Sale (S): 282,001 @ $10.90 · Option exercise (M): 162,247 @ $3.90 · Sale (S): 162,247 @ $10.54 · Option exercise (M): 282,001 (derivative) @ $0 · Option exercise (M): 162,247 (derivative) @ $0 | EDGAR |
| 2026-09-15 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 44,766 · Sale (S): 22,780 @ $10.56 · Gift (G): 21,986 @ $0 · Gift (G): 21,986 @ $0 · Option exercise (M): 44,766 (derivative) @ $0 | EDGAR |
| 2026-09-03 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 32,736 · Sale (S): 16,890 @ $10.30 · Gift (G): 15,846 @ $0 · Gift (G): 15,846 @ $0 · Option exercise (M): 32,736 (derivative) @ $0 | EDGAR |
| 2026-08-13 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 453,314 @ $3.90 · Sale (S): 453,314 @ $10.51 · Option exercise (M): 453,314 (derivative) @ $0 | EDGAR |
| 2026-08-04 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 283,334 · Sale (S): 139,500 @ $9.61 · Gift (G): 143,834 @ $0 · Gift (G): 143,834 @ $0 · Option exercise (M): 283,334 (derivative) @ $0 | EDGAR |
| 2026-07-16 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 264,100 @ $2.04 · Sale (S): 264,100 @ $9.07 · Option exercise (M): 64,975 @ $2.04 · Sale (S): 64,975 @ $9.31 · Option exercise (M): 133,490 @ $3.90 · Sale (S): 133,490 @ $9.32 · +3 more | EDGAR |
| 2026-06-15 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 44,767 · Sale (S): 23,570 @ $10.92 · Gift (G): 21,197 @ $0 · Gift (G): 21,197 @ $0 · Option exercise (M): 472,005 @ $2.04 · Sale (S): 472,005 @ $11.11 · +2 more | EDGAR |
| 2026-06-03 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 32,736 · Option exercise (M): 6,166,667 @ $11.16 · Sale (S): 17,350 @ $11.32 · Gift (G): 6,182,053 @ $0 · Gift (G): 6,182,053 @ $0 · Option exercise (M): 32,736 (derivative) @ $0 · +1 more | EDGAR |
| 2026-05-19 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 369,624 @ $2.04 · Sale (S): 369,624 @ $8.72 · Option exercise (M): 112,014 @ $2.04 · Sale (S): 112,014 @ $8.65 · Option exercise (M): 369,624 (derivative) @ $0 · Option exercise (M): 112,014 (derivative) @ $0 | EDGAR |
| 2026-05-05 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 53,125 · Sale (S): 27,210 @ $9.27 · Gift (G): 25,915 @ $0 · Gift (G): 25,915 @ $0 · Option exercise (M): 53,125 (derivative) @ $0 | EDGAR |
| 2026-04-15 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 326,189 @ $2.04 · Sale (S): 326,189 @ $8.31 · Option exercise (M): 165,278 @ $2.04 · Sale (S): 165,278 @ $8.49 · Option exercise (M): 326,189 (derivative) @ $0 · Option exercise (M): 165,278 (derivative) @ $0 | EDGAR |
| 2026-03-19 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 282,203 @ $2.04 · Sale (S): 282,203 @ $8.86 · Option exercise (M): 219,294 @ $2.04 · Sale (S): 219,294 @ $8.67 · Option exercise (M): 282,203 (derivative) @ $0 · Option exercise (M): 219,294 (derivative) @ $0 | EDGAR |
| 2026-03-13 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 44,766 · Sale (S): 23,435 @ $9.11 · Gift (G): 21,331 @ $0 · Gift (G): 21,331 @ $0 · Option exercise (M): 44,766 (derivative) @ $0 | EDGAR |
| 2026-03-03 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 32,736 · Sale (S): 17,655 @ $7.79 · Gift (G): 15,081 @ $0 · Gift (G): 15,081 @ $0 · Option exercise (M): 32,736 (derivative) @ $0 | EDGAR |
| 2026-02-12 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 511,732 @ $2.04 · Sale (S): 511,732 @ $11.66 · Option exercise (M): 511,732 (derivative) @ $0 | EDGAR |
| 2026-02-03 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 53,125 · Sale (S): 27,605 @ $10.81 · Gift (G): 25,520 @ $0 · Gift (G): 25,520 @ $0 · Option exercise (M): 53,125 (derivative) @ $0 | EDGAR |
| 2026-01-15 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 212,586 @ $2.04 · Sale (S): 212,586 @ $13.52 · Sale (S): 309,589 @ $13.52 · Option exercise (M): 212,586 (derivative) @ $0 | EDGAR |
| 2025-12-18 | 4 | C3.ai, Inc. (AI) | Sale (S): 392,064 @ $14.37 · Sale (S): 140,768 @ $14.22 | EDGAR |
| 2025-12-15 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 44,767 · Grant/award (A): 722,362 · Sale (S): 23,000 @ $15.94 · Gift (G): 21,767 @ $0 · Gift (G): 21,767 @ $0 · Option exercise (M): 44,767 (derivative) @ $0 · +1 more | EDGAR |
| 2025-12-03 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 32,736 · Sale (S): 17,000 @ $14.21 · Gift (G): 15,736 @ $0 · Gift (G): 15,736 @ $0 · Option exercise (M): 32,736 (derivative) @ $0 | EDGAR |
| 2025-11-12 | 4 | C3.ai, Inc. (AI) | Sale (S): 543,706 @ $15.24 | EDGAR |
| 2025-11-04 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 53,125 · Sale (S): 27,545 @ $17.30 · Gift (G): 25,580 @ $0 · Gift (G): 25,580 @ $0 · Option exercise (M): 53,125 (derivative) @ $0 | EDGAR |
| 2025-10-16 | 4 | C3.ai, Inc. (AI) | Sale (S): 554,802 @ $18.82 | EDGAR |
| 2025-09-17 | 4 | C3.ai, Inc. (AI) | Sale (S): 566,125 @ $17.23 | EDGAR |
| 2025-09-15 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 179,119 · Sale (S): 92,000 @ $16.33 · Gift (G): 87,119 @ $0 · Gift (G): 87,119 @ $0 · Option exercise (M): 179,119 (derivative) @ $0 | EDGAR |
| 2025-09-03 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 32,736 · Sale (S): 17,200 @ $16.49 · Gift (G): 15,536 @ $0 · Gift (G): 15,536 @ $0 · Option exercise (M): 32,736 (derivative) @ $0 | EDGAR |
| 2025-08-14 | 4 | C3.ai, Inc. (AI) | Sale (S): 577,678 @ $16.78 | EDGAR |
| 2025-08-05 | 4 | C3.ai, Inc. (AI) | Grant/award (A): 40,125 @ $0 · Option exercise (M): 53,125 · Option exercise (M): 283,333 · Option exercise (M): 283,333 · Sale (S): 336,000 @ $22.77 · Gift (G): 323,916 @ $0 · +4 more | EDGAR |
| 2025-07-22 | 4 | C3.ai, Inc. (AI) | Sale (S): 575,874 @ $28.56 · Sale (S): 13,594 @ $29.24 | EDGAR |
| 2025-06-12 | 4 | C3.ai, Inc. (AI) | Sale (S): 590,995 @ $25.01 · Sale (S): 10,503 @ $25.76 | EDGAR |
| 2025-06-03 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 32,736 · Sale (S): 17,000 @ $26.30 · Gift (G): 15,736 @ $0 · Gift (G): 15,736 @ $0 · Option exercise (M): 32,736 (derivative) @ $0 | EDGAR |
| 2025-05-15 | 4 | C3.ai, Inc. (AI) | Sale (S): 341,698 @ $24 · Sale (S): 272,079 @ $23.99 | EDGAR |
| 2025-05-05 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 53,125 · Sale (S): 27,010 @ $22.27 · Gift (G): 26,115 @ $0 · Gift (G): 26,115 @ $0 · Option exercise (M): 53,125 (derivative) @ $0 | EDGAR |
| 2025-04-16 | 4 | C3.ai, Inc. (AI) | Sale (S): 311,488 @ $20.10 · Sale (S): 44,930 @ $20.81 · Sale (S): 228,201 @ $19.92 · Sale (S): 13,567 @ $19.47 · Sale (S): 14,639 @ $20.10 · Sale (S): 2,112 @ $20.81 · +2 more | EDGAR |
| 2025-03-18 | 4 | C3.ai, Inc. (AI) | Sale (S): 294,116 @ $21.50 · Sale (S): 216,974 @ $21.88 · Sale (S): 127,191 @ $21.83 · Sale (S): 800 @ $22.25 | EDGAR |
| 2025-03-04 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 32,736 · Tax withholding (F): 16,624 @ $23.45 · Gift (G): 16,112 @ $0 · Gift (G): 16,112 @ $0 · Option exercise (M): 32,736 (derivative) @ $0 | EDGAR |
| 2025-02-13 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 133,000 @ $1.86 · Sale (S): 334,227 @ $32.43 · Sale (S): 97,447 @ $33.49 · Sale (S): 120,748 @ $34.37 · Sale (S): 78,873 @ $32.22 · Sale (S): 20,828 @ $32.58 · +1 more | EDGAR |
| 2025-02-04 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 53,125 · Tax withholding (F): 26,977 @ $31.35 · Gift (G): 26,148 @ $0 · Gift (G): 26,148 @ $0 · Option exercise (M): 53,125 (derivative) @ $0 | EDGAR |
| 2025-01-16 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 409,831 @ $1.86 · Sale (S): 319,629 @ $30.82 · Sale (S): 90,202 @ $31.48 · Option exercise (M): 255,601 @ $1.86 · Sale (S): 222,212 @ $31.96 · Sale (S): 33,389 @ $32.66 · +2 more | EDGAR |
| 2024-12-03 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 32,736 · Tax withholding (F): 16,591 @ $37.18 · Gift (G): 16,145 @ $0 · Gift (G): 16,145 @ $0 · Option exercise (M): 32,736 (derivative) @ $0 | EDGAR |
| 2024-11-04 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 53,125 · Tax withholding (F): 26,924 @ $25.03 · Gift (G): 26,201 @ $0 · Gift (G): 26,201 @ $0 · Option exercise (M): 53,125 (derivative) @ $0 | EDGAR |
| 2024-09-13 | 4 | C3.ai, Inc. (AI) | Grant/award (A): 537,413 (derivative) @ $0 · Grant/award (A): 886,244 (derivative) @ $0 | EDGAR |
| 2024-09-04 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 537,634 @ $1.86 · Option exercise (M): 32,736 · Tax withholding (F): 16,591 @ $23.34 · Gift (G): 16,145 @ $0 · Gift (G): 16,145 @ $0 · Gift (G): 537,634 @ $0 · +3 more | EDGAR |
| 2024-08-07 | 4 | C3.ai, Inc. (AI) | Grant/award (A): 41,841 @ $0 · Tax withholding (F): 21,206 @ $23.90 · Gift (G): 20,635 @ $0 · Gift (G): 20,635 @ $0 | EDGAR |
| 2024-08-05 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 53,125 · Tax withholding (F): 26,924 @ $25.82 · Option exercise (M): 566,666 · Gift (G): 26,201 @ $0 · Gift (G): 26,201 @ $0 · Gift (G): 566,666 @ $0 · +3 more | EDGAR |
| 2024-06-04 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 32,736 · Tax withholding (F): 16,591 @ $29.57 · Gift (G): 16,145 @ $0 · Gift (G): 16,145 @ $0 · Option exercise (M): 32,736 (derivative) @ $0 | EDGAR |
| 2024-05-03 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 53,125 · Tax withholding (F): 26,924 @ $22.69 · Gift (G): 26,201 @ $0 · Gift (G): 26,201 @ $0 · Option exercise (M): 53,125 (derivative) @ $0 | EDGAR |
| 2024-03-05 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 32,735 · Tax withholding (F): 16,591 @ $35.87 · Gift (G): 16,144 @ $0 · Gift (G): 16,144 @ $0 · Option exercise (M): 32,735 (derivative) @ $0 | EDGAR |
| 2024-02-05 | 4 | C3.ai, Inc. (AI) | Option exercise (M): 53,125 · Tax withholding (F): 21,085 @ $24.95 · Gift (G): 32,040 @ $0 · Gift (G): 32,040 @ $0 · Option exercise (M): 53,125 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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