Transaction · 0001577526-26-000138

Siebel Thomas M

SIEBEL THOMAS M, CHAIR, reported a transaction classified as exercise at C3.ai, Inc. involving 435363.000000 shares for an estimated $0.00. Reported holdings after the transaction were 1533585.000000 shares. The stored filing text includes a detected 10b5-1 reference.

exerciseSEC transaction code MCHAIR
AIC3.ai, Inc.
Trade date
Oct 13, 2026
Filing date
Oct 14, 2026
View on SEC Insider profile
Estimated value$0Shares × reported price
Shares traded435k$0.00 per share
Holdings after1.53MDirect
% of reported position tradedUnavailableThis security and ownership context
How reported position traded is calculated

Not calculated for derivative securities.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

AI price since this filing

Daily closing prices, with the filing date and available return windows
AI · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago -9.7%1w ago -3.7%1d ago -0.5%
Returns since7d30d90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Derivative
Type
exercise
Code M
Identifier
0001577526-26-000138
Stock Option (Right to Buy)
Transaction date
Oct 13, 2026
Filed Oct 14, 2026, 09:44 PM · 1d delay
Shares
435,363 sh
$0.00 per share
Estimated value
$0
Computed from shares × price
Holdings after
1,533,585 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Derivative Transaction Direct Ownership Large Holdings Reduction 10b5-1 Detected
Filing-only score

-16 points

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.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • timely_filing+4 points

    reporting_delay_days = 1

    Filing reported within two business days of the transaction.
  • derivative_transaction-16 points

    is_derivative = true

    Derivative exercise rows are less discretionary than open-market purchases.
  • tenb5_1_detected-10 points

    is_10b5_1 = true

    Stored filing content includes detected 10b5-1 language.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

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

    The transaction being reported was effected pursuant to a previously established Rule 10b5-1 trading plan dated September 20, 2024.

  2. F2

    The price reported is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $11.565 to $12.0123, inclusive. The Reporting Person will provide upon request to…

  3. F3

    The shares are held by The Siebel Living Trust u/a/d 7/27/93, as amended, of which the Reporting Person is trustee.

  4. F4

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

  5. F5

    The shares are held by HS ET DE Investments LLC, of which the Reporting Person is the manager.

  6. F6

    The shares are held by Siebel Legacy Investments I LLC, of which the Reporting Person is the manager.

  7. F7

    The shares are held by Siebel Legacy Investments II LLC, of which the Reporting Person is the manager.

  8. F8

    Fully vested.

Original filing · 0001577526-26-000138
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