Transaction · 0001577526-26-000121

SIEBEL THOMAS M

SIEBEL THOMAS M, CHAIR, reported a transaction classified as exercise at C3.ai, Inc. involving 32736.000000 shares for an estimated $0.00. Reported holdings after the transaction were 32738.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

exerciseSEC transaction code MCHAIR
AIC3.ai, Inc.
Filing timeSep 03
Trade dateSep 01, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$10.90
Pre-filing
1mo ago -15.8%1w ago -8.3%1d ago -0.7%
Returns since
7d +0.0%30d +0.0%90d +0.0%180d +0.0%1y +0.0%

AI price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
AI since 2026-09-03Filed yesterday · 1 day of post-filing data
Loading…
Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Derivative
Type
exercise
Code M
Identifier
0001577526-26-000121
Restricted Stock Units
Transaction date
Sep 01, 2026
Filed Sep 03, 2026, 10:47 PM · 2d delay
Shares
32.7k sh
$0 per share
Estimated value
$0
Computed from shares × price
Holdings after
32.7k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Derivative Transaction Direct Ownership Large Holdings Reduction
-6score
Filing-only score

-6

Compact filing score computed from stored Form 4 facts. Version v1.

Mixed or weak signal

This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

CEO and Chairman of the Board

Officer YesDirector Yes10% YesOther No
Footnotes & amended
  1. F1

    Each Restricted Stock Unit (RSU) represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement.

  2. 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 re…

  3. 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 th…

  4. 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.

  5. F5

    The shares are held by First Virtual Holdings, LLC, of which the Reporting Person is Chairman.

  6. F6

    The shares are held by Siebel Asset Management, L.P., of which the Reporting Person is the general partner.

  7. F7

    The shares are held by Siebel Asset Management III, L.P., of which the Reporting Person is the general partner.

  8. F8

    The shares are held by The Siebel 2011 Irrevocable Children's Trust, of which the Reporting Person is co-trustee.

  9. 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.

Original filing · 0001577526-26-000121
Related transactions

0 other filings

Same reporting owner
Recent company activity

0 recent txs

AI