C3.ai insider Siebel sells 16,890 shares for taxes
C3.ai CEO Thomas M. Siebel reported RSU vesting, a tax-related share sale, and a gift transfer involving C3.ai Class A Common Stock.
Rhea-AI Filing Summary
C3.ai, Inc. (AI) reported several equity transactions by CEO, Chairman and 10% owner Thomas M. Siebel. On September 1, 2026, 32,736 Restricted Stock Units vested and were settled into 32,736 shares of Class A Common Stock.
On September 2, 2026, 16,890 shares were automatically withheld and sold by the issuer at a weighted-average price between $10.30 and $10.31 per share to satisfy tax withholding obligations. On September 3, 2026, Siebel made a bona fide gift of 15,846 directly held shares and an associated 15,846-share acquisition by The Siebel Living Trust, where he is trustee, was reported as indirect ownership. No Rule 10b5-1 trading plan is reported.
Positive
- None.
Negative
- None.
Insider Trade Summary
Exercise and sale activity reported; no spread calculated
Exercise and Sale
9 txns
Insider
SIEBEL THOMAS M
Role
CEO and Chairman of the Board
Sold
16,890 shs ($174K)
Approx. gross sale proceeds
$174K
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Gift | Class A Common Stock | 15,846 | $0.00 | $0.00 |
| Gift | Class A Common Stock F4 | 15,846 | $0.00 | $0.00 |
| Sale | Class A Common Stock F2, F3 | 16,890 | $10.30 | $174K |
| Exercise | Restricted Stock Units F1, F9 | 32,736 | $0.00 | $0.00 |
| Exercise | Class A Common Stock F1 | 32,736 | -- | -- |
| holding | Class A Common Stock F5 | -- | -- | -- |
| holding | Class A Common Stock F6 | -- | -- | -- |
| holding | Class A Common Stock F7 | -- | -- | -- |
| holding | Class A Common Stock F8 | -- | -- | -- |
Holdings After Transaction:
Restricted Stock Units — 32,738 contracts (Direct);
Class A Common Stock — 722,362 shares (Direct);
Class A Common Stock — 8,572,353 shares (Indirect, See Footnote)
Footnotes (9)
- F1. Each Restricted Stock Unit (RSU) represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement.
- F2. Pursuant to the Issuer's policies and practice, these shares of Class A Common Stock were automatically withheld and sold by the Issuer to satisfy the Reporting Person's tax withholding obligations related to the vesting of RSUs reported herein.
- F3. The price reported is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $10.30 to $10.31, inclusive. The Reporting Person will provide upon request to the staff of the Securities and Exchange Commission, the Issuer or any security holder of the Issuer, full information regarding the number of shares sold at each separate price.
- F4. The shares are held by The Siebel Living Trust u/a/d 7/27/93, as amended, of which the Reporting Person is trustee.
- F5. The shares are held by First Virtual Holdings, LLC, of which the Reporting Person is Chairman.
- F6. The shares are held by Siebel Asset Management, L.P., of which the Reporting Person is the general partner.
- F7. The shares are held by Siebel Asset Management III, L.P., of which the Reporting Person is the general partner.
- F8. The shares are held by The Siebel 2011 Irrevocable Children's Trust, of which the Reporting Person is co-trustee.
- F9. 1/12th of the RSUs vest on each quarterly anniversary from December 1, 2023, so long as the Reporting Person continues to provide services through such vesting date.
Key Figures
RSUs vested: 32,736 units
Shares issued on RSU settlement: 32,736 shares
Shares sold for tax withholding: 16,890 shares
+2 more
5 metrics
RSUs vested
32,736 units
Restricted Stock Units vesting on September 1, 2026, each settling into one share
Shares issued on RSU settlement
32,736 shares
Class A Common Stock delivered upon RSU settlement on September 1, 2026
Shares sold for tax withholding
16,890 shares
Automatically withheld and sold on September 2, 2026 to satisfy tax obligations
Weighted-average sale price
$10.30–$10.31 per share
Price range for shares sold on September 2, 2026, as a weighted average
Gifted shares
31,692 shares
Total shares involved in bona fide gift and corresponding indirect acquisition on September 3, 2026
Key Terms
Restricted Stock Unit (RSU), bona fide gift, weighted-average price, tax withholding obligations
4 terms
Restricted Stock Unit (RSU) financial
"Each Restricted Stock Unit (RSU) represents a contingent right to receive one share"
A restricted stock unit (RSU) is a promise from a company to give an employee company shares (or cash equal to their value) at a future date if certain conditions are met, such as staying with the company or hitting performance targets. For investors, RSUs matter because when they convert into actual shares they increase the number of shares available and can create selling pressure as employees cash out—think of them as a future paycheck paid in company stock.
bona fide gift financial
"transaction code description states Bona fide gift for certain transfers"
A bona fide gift is a genuine, voluntary transfer of money, property, or benefits from one party to another made without expectation of repayment, services, or hidden conditions. Investors care because such gifts can affect company disclosures, related‑party transaction rules, tax treatment, and perceived conflicts of interest; think of it like someone giving you a present with no strings attached — but on a corporate scale, auditors and regulators need to verify it really is unconditional.
weighted-average price financial
"The price reported is a weighted-average price for shares sold"
Weighted-average price is the average of multiple prices where each price is counted according to its size or importance—larger trades carry more weight than smaller ones, like averaging course grades by credit hours. It matters to investors because it gives a more realistic picture of the true price paid or received, helping assess trade execution, compare performance, calculate cost basis, and value positions more accurately than a simple average.
tax withholding obligations financial
"shares were automatically withheld and sold to satisfy the Reporting Person's tax withholding obligations"
FAQ
What RSU activity did C3.ai (AI) report for Thomas M. Siebel?
On September 1, 2026, 32,736 RSUs vested for Thomas M. Siebel, each RSU representing a contingent right to receive one share of C3.ai Class A Common Stock upon settlement.
Was the September 2, 2026 C3.ai (AI) sale under a Rule 10b5-1 plan?
No. The filing indicates no Rule 10b5-1 trading plan; the document-level Rule 10b5-1 checkbox is not affirmed, and the footnotes describe the sale as an automatic tax-withholding transaction.
What is the vesting schedule for the reported C3.ai (AI) RSUs?
For the RSUs referenced, 1/12th vests on each quarterly anniversary from December 1, 2023, provided Thomas M. Siebel continues to provide services through each vesting date.
AI-generated analysis. How Rhea-AI works. Not financial advice.
