FilingsForm 4

C3.ai withheld and sold 92,000 shares for its Executive Chairman's taxes in September 2025

From the public record1 min read

Published Oct 27, 2026 · 22:17 UTCUpdated Oct 27, 2026 · 22:44 UTCFiled Sep 15, 2025

Value$1.5 million

Shares92,000

Average price$16.33

FiledSep 15

Written by Claude Sonnet 5.5, an AI model, from public records. Each figure in it was checked automatically against the source's text or our database before it was published.

C3.ai automatically withheld and sold 92,000 Class A shares on Sep 12, 2025 at an average of $16.33 a share to cover the tax withholding obligations of Thomas Siebel, its Executive Chairman, on the vesting of restricted stock units, a footnote says. The form codes the line as a sale worth $1.5 million, and states 87,119 Class A shares held directly after it. The same form also lists 179,119 shares acquired from restricted stock units on Sep 11, 2025, and a gift of 87,119 shares on Sep 15, 2025. The Form 4, the form insiders file about trades in their company's shares, was filed on SEC EDGAR on Sep 15, 2025.1 2 3 4 5 6 7 8 9 10 11 12 13 14

How each figure was checked14 facts

C3.ai Form 4 0001031530-25-000003: shares92,000Our database
C3.ai Form 4 0001031530-25-000003: first dateSep 12, 2025Our database
C3.ai Form 4 0001031530-25-000003: average price$16.33Our database
Footnote F2 of the Form 4 filed Sep 15, 2025 (it is attached to that document's line N2)SEC EDGAR, footnotes and remarks of the Form 4 filed Sep 15, 2025 ↗
Footnote F1 of the Form 4 filed Sep 15, 2025 (it is attached to that document's line N1, D1)SEC EDGAR, footnotes and remarks of the Form 4 filed Sep 15, 2025 ↗
C3.ai Form 4 0001031530-25-000003: ownerSIEBEL THOMAS MOur database
C3.ai Form 4 0001031530-25-000003: relationshipdirector, officer (Executive Chairman) and owner of more than 10% of the sharesOur database
C3.ai Form 4 0001031530-25-000003, line 2: the shares owned after the line87,119 shares of Class A Common Stock owned after this line, held directlyOur database
C3.ai Form 4 0001031530-25-000003, line 2sale (code S): 92,000 shares disposed on Sep 12, 2025 at $16.33 per share; held directly; 87,119 owned after the lineOur database
C3.ai Form 4 0001031530-25-000003: value$1.5 millionOur database
C3.ai Form 4 0001031530-25-000003, line 1exercise of a derivative security (code M): 179119 shares acquired on 2025-09-11, no price stated; held directly; 179119 owned after the lineOur database
C3.ai Form 4 0001031530-25-000003, derivative line 1: the shares owned after the line358,294 shares of Restricted Stock Units owned after this line, held directlyOur database
C3.ai Form 4 0001031530-25-000003, line 3gift (code G): 87,119 shares disposed on Sep 15, 2025 at $0 per share; held directly; 0 owned after the lineOur database
C3.ai Form 4 0001031530-25-000003: filed onSep 15, 2025Our database

The record

Issuer: C3.ai (CIK 1577526, filed as C3.ai, Inc.)
Form: 4
Accession: 0001031530-25-000003
Filed: Sep 15, 2025
Period of report: Sep 11, 2025
Reporting owner: Thomas Siebel (CIK 1031530, filed as SIEBEL THOMAS M)
Relationship: director, officer (Executive Chairman) and owner of more than 10% of the shares
Rule 10b5-1 checkbox: Not ticked
Line 1: M (exercise of a derivative security) · 179,119 Class A Common Stock · Sep 11, 2025 · acquired, directly · 179,119 held after · footnote F1
Line 2: S (sale) · 92,000 Class A Common Stock at $16.33 · Sep 12, 2025 · disposed, directly · 87,119 held after · footnotes F2 and F3
Line 3: G (gift) · 87,119 Class A Common Stock at $0.00 · Sep 15, 2025 · disposed, directly · 0 held after
Line 4: G (gift) · 87,119 Class A Common Stock at $0.00 · Sep 15, 2025 · acquired, indirectly, See Footnote · 3,076,227 held after · footnote F4
Derivative line 1: M (exercise of a derivative security) · 179,119 Restricted Stock Units at $0.00 · Sep 11, 2025 · disposed, directly · 358,294 held after · footnotes F1 and F9
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 $16.235 to $16.41, 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 shares are held by First Virtual Holdings, LLC, of which the Reporting Person is Chairman.
Footnote F6: The shares are held by Siebel Asset Management, L.P., of which the Reporting Person is the general partner.
Footnote F7: The shares are held by Siebel Asset Management III, L.P., of which the Reporting Person is the general partner.
Footnote F8: The shares are held by The Siebel 2011 Irrevocable Children's Trust, of which the Reporting Person is co-trustee.
Footnote F9: 1/3rd of the RSUs shall vest 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 date.