Transaction · 0001577526-26-000026

SIEBEL THOMAS M

SIEBEL THOMAS M, CHAIR, reported a transaction classified as exercise at C3.ai, Inc. involving 44766.000000 shares for an estimated $0.00. Reported holdings after the transaction were 268761.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

exerciseSEC transaction code MCHAIR
AIC3.ai, Inc.
Filing timeMar 13
Trade dateMar 11, 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
$8.91
Pre-filing
1mo ago +30.6%1w ago +4.2%1d ago +0.6%
Returns since
7d -4.9%30d -7.2%90d +26.5%180d +12.2%1y +12.2%

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 2026-03-13Filed 175 days ago · 30 days of pre-filing context shaded
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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
0001577526-26-000026
Restricted Stock Units
Transaction date
Mar 11, 2026
Filed Mar 13, 2026, 12:00 AM · 2d delay
Shares
44.7k sh
$0 per share
Estimated value
$0
Computed from shares × price
Holdings after
268k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Derivative Transaction Direct Ownership
-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

Executive Chairman

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 $9.055 to $9.16, inclusive. The Reporting Person will provide upon request to the…

  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

    1/3rd 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.

Original filing · 0001577526-26-000026
Related transactions

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