Key facts
- This page summarizes Thomas M. Siebel's Form 4 filing for C3.ai, Inc. (AI).
- 8 reported transactions and 2 derivative rows are listed below.
- Accepted by SEC: 15 Jun 2026, 20:04.
Thomas M. Siebel - 11 Jun 2026 Form 4 Insider Report for C3.ai, Inc. (AI)
- Reporting relationship
- CEO and Chairman of the Board, Director, 10%+ Owner
- Issuer ticker
- AI
- Reported as of
- 11 Jun 2026
- Net transaction value
- -$5,501,360
- SEC form
- 4
- Accepted by SEC
- 15 Jun 2026, 20:04:32 UTC
- Prior SEC filing
- 03 Jun 2026
- Next SEC filing
- 16 Jul 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Sasha Pesic, Attorney-in-Fact
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Thomas M. Siebel filed Form 4 for C3.ai, Inc. (AI) on 15 Jun 2026.
Change
- Previous filing in this sequence was filed on 03 Jun 2026.
- Current net transaction value: -$5,501,360.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001031530
Primary reporting owner
SIEBEL THOMAS M
- Relationship
- CEO and Chairman of the Board, Director, 10%+ Owner
- Address
- C/O C3.AI, INC., 1400 SEAPORT BLVD, SUITE 500, REDWOOD CITY
- Signature
- /s/ Sasha Pesic, Attorney-in-Fact
- Signature date
- 15 Jun 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
AI
transaction
Class A Common Stock
Options Exercise
- Transaction value
- Shares
- +44,767
- Change %
- +6.2%
- Price
- Shares after
- 767,129
- Date
- 11 Jun 2026
- Ownership
- Direct
- Footnotes
- F1
AI
transaction
Class A Common Stock
Sale
- Transaction value
- $257,384
- Shares
- -23,570
- Change %
- -3.1%
- Price
- $10.92
- Shares after
- 743,559
- Date
- 12 Jun 2026
- Ownership
- Direct
- Footnotes
- F2, F3
AI
transaction
Class A Common Stock
Gift
- Transaction value
- Shares
- -21,197
- Change %
- -2.9%
- Price
- $0.000000*
- Shares after
- 722,362
- Date
- 15 Jun 2026
- Ownership
- Direct
AI
transaction
Class A Common Stock
Gift
- Transaction value
- Shares
- +21,197
- Change %
- +0.31%
- Price
- $0.000000*
- Shares after
- 6,923,353
- Date
- 15 Jun 2026
- Ownership
- See Footnote
- Footnotes
- F4
AI
transaction
Class A Common Stock
Options Exercise
- Transaction value
- Shares
- +472,005
- Change %
- +65%
- Price
- $2.04*
- Shares after
- 1,194,367
- Date
- 15 Jun 2026
- Ownership
- Direct
- Footnotes
- F5
AI
transaction
Class A Common Stock
Sale
- Transaction value
- $5,243,976
- Shares
- -472,005
- Change %
- -40%
- Price
- $11.11
- Shares after
- 722,362
- Date
- 15 Jun 2026
- Ownership
- Direct
- Footnotes
- F5, F6
AI
holding
Class A Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 9,216
- Date
- 11 Jun 2026
- Ownership
- See Footnote
- Footnotes
- F7
AI
holding
Class A Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 170,294
- Date
- 11 Jun 2026
- Ownership
- See Footnote
- Footnotes
- F8
AI
holding
Class A Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 72,695
- Date
- 11 Jun 2026
- Ownership
- See Footnote
- Footnotes
- F9
AI
holding
Class A Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 1,237,115
- Date
- 11 Jun 2026
- Ownership
- See Footnote
- Footnotes
- F10
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
AI
transaction
Derivative
Restricted Stock Units
Options Exercise
- Transaction value
- Shares
- -44,767
- Change %
- -17%
- Price
- $0.000000*
- Shares after
- 223,994
- Date
- 11 Jun 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 44,767
- Exercise price
- Footnotes
- F1, F11
AI
transaction
Derivative
Stock Option (Right to Buy)
Options Exercise
- Transaction value
- Shares
- -472,005
- Change %
- -59%
- Price
- $0.000000*
- Shares after
- 329,075
- Date
- 15 Jun 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 472,005
- Exercise price
- $2.04
- Footnotes
- F5, F12
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Rule 10b5-1 trading plan
These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.
Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).
Explanation of responses 12 footnotes
Footnote F1
Each Restricted Stock Unit (RSU) represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement.
Footnote 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.
Footnote F3
The price reported is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $10.75 to $11.06, 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.
Footnote 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.
Footnote F5
The transaction being reported was effected pursuant to a previously established Rule 10b5-1 trading plan dated September 20, 2024.
Footnote F6
The price reported is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $10.845 to $11.34, 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.
Footnote F7
The shares are held by First Virtual Holdings, LLC, of which the Reporting Person is Chairman.
Footnote F8
The shares are held by Siebel Asset Management, L.P., of which the Reporting Person is the general partner.
Footnote F9
The shares are held by Siebel Asset Management III, L.P., of which the Reporting Person is the general partner.
Footnote F10
The shares are held by The Siebel 2011 Irrevocable Children's Trust, of which the Reporting Person is co-trustee.
Footnote F11
1/3rd of the RSUs vested on September 11, 2025 and 1/12th of the RSUs shall vest quarterly thereafter, so long as the Reporting Person continues to provide services through such vesting dates.
Footnote F12
Fully vested.