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sellWeak cluster of 2

Thomas M Siebel sold $367k of AI

Executive Chairman at C3.ai, Inc.. 23,000 shares at an average of $15.94, traded Dec 12, 2025, filed Dec 15, 2025.

Warning score
28
Value
$367k
23,000 shares
Holdings after
744,129
-3% from before
From 52-week low
+19%
low $12.85, close $15.27
From 52-week high
-64%
high $42.94, as of Dec 12, 2025

Score components

  • Role
    Chair
    +20
  • Trade size
    $367k at market
    +15
  • Share of holdings sold
    Sold 3.0% of holdings
    0
  • Cluster
    2 insiders selling within 14 days
    +8
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m -5.1%, 3m -39.9%, 6m -24.7%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

AIOct 9, 2026 · close 11.53
Since filing Dec 15, 2025: -21.3%SPY +15.5% · excess -36.8%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001031530-25-000015, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 11, 2025MOption exercise
Class A Common Stock
+44,767--44,767Dec 15, 2025
Dec 11, 2025AGrant or award
Class A Common Stock
+722,362--767,129Dec 15, 2025
Dec 12, 2025SOpen-market sale
Class A Common Stock
-23,000$15.94$367k744,129Dec 15, 2025
Dec 15, 2025GGift
Class A Common Stock
-21,767$0.00$0722,362Dec 15, 2025
Dec 15, 2025GGift
Class A Common Stockindirect: See Footnote
+21,767$0.00$01,474,677Dec 15, 2025
Dec 11, 2025MOption exercise
Restricted Stock Unitsderivative
-44,767$0.00$0313,527Dec 15, 2025
Dec 11, 2025AGrant or award
Stock Option (Right to Buy)derivative
+1,133,474$0.00$01,133,474Dec 15, 2025

Related signals

Other insiders at C3.ai, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
33Weak
AIsell 210b5-1
C3.ai, Inc.
Thomas M Siebel
CEO and Chairman of the Board
$4.8M
444,248 shares
-44%
27Weak
AIsell 2
C3.ai, Inc.
Hitesh Lath
CHIEF FINANCIAL OFFICER
$221k
21,077 shares
-5%
31Weak
AIsell 2
C3.ai, Inc.
Thomas M Siebel
CEO and Chairman of the Board
$241k
22,780 shares
-3%
29Weak
AIsell 2
C3.ai, Inc.
Thomas M Siebel
CEO and Chairman of the Board
$174k
16,890 shares
-2%
33Weak
AIsell 210b5-1
C3.ai, Inc.
Thomas M Siebel
CEO and Chairman of the Board
$4.8M
453,314 shares
-39%
22Weak
AIsell 210b5-1
C3.ai, Inc.
Hitesh Lath
CHIEF FINANCIAL OFFICER
$200k
20,000 shares
-5%
48Moderate
AIsell 2
C3.ai, Inc.
Thomas M Siebel
CEO and Chairman of the Board
$1.3M
139,500 shares
-14%
40Moderate
AIsell 310b5-1
C3.ai, Inc.
Thomas M Siebel
CEO and Chairman of the Board
$4.2M
462,565 shares
-47%
58Moderate
AIsell 3
C3.ai, Inc.
Stephen Bradley Ehikian
Chief Executive Officer
$478k
50,542 shares
-7%
39Weak
AIsell 310b5-1
C3.ai, Inc.
Hitesh Lath
CHIEF FINANCIAL OFFICER
$426k
48,619 shares
-11%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Thomas M Siebel sold $367k of AI | InsiderTell