Massivemarkets

SEC Form 4

C3.ai, Inc. (AI) insider trading

In the 12 months to Oct 23, 2026, 3 AI insiders reported open-market sales of $66.6M across 16 filings; one director bought $302.3K.

Latest filing · Last 12 months · Source: SEC EDGAR · How we count

Open-market sales
$66.6M
16 filings · 3 insiders
Open-market purchases
$302.3K
2 filings · Jim H. Snabe, Director
Pre-arranged sales (10b5-1)
15 of 16
$66.5M of $66.6M sold (100%)

Who traded AI, and when

  • Purchase
  • Sale
  • Sale, pre-arranged (10b5-1)

AI daily close from Oct 23, 2025 to Oct 23, 2026, between $7.76 and $18.36, last $12.46. 16 sale and 2 purchase filings by 3 insiders, marked at their filing dates. Thomas M. Siebel, Executive Chairman → CEO and Chairman of the Board: sold $65.8M across 12 filings, first filed Nov 12, 2025, last Oct 14, 2026. Hitesh Lath, CHIEF FINANCIAL OFFICER: sold $634.3K across 3 filings, first filed Jul 1, 2026, last Oct 14, 2026. Jim H. Snabe, Director: sold $80.8K and bought $302.3K across 3 filings, first filed Mar 10, 2026, last Mar 31, 2026.

Largest mark · tap a row for others

Thomas M. Siebel · Executive Chairman

Sale $8,286,079

543,706 shares at $15.24 avg

Filed Nov 12, 2025 · traded Nov 11

Pre-arranged (10b5-1) · close on filing date $14.83

AI daily closelast $12.46

Thomas M. Siebel · Executive Chairman → CEO and Chairman of the Board

$65.8M sold

Hitesh Lath · CHIEF FINANCIAL OFFICER

$634.3K sold

Jim H. Snabe · Director

$80.8K sold$302.3K bought
One row per insider; marks sit at the SEC filing date, sized by dollar value.

Has C3.ai, Inc.'s CEO sold stock?

Yes. Thomas M. Siebel (CEO) sold 2,749,133 shares ($28.4M) between May 2026 and Oct 2026, all under a pre-arranged 10b5-1 plan. Stephen Bradley Ehikian (CEO) made no open-market sales filed as CEO in the last 12 months.

Open-market trades

18 filings in the last 12 months
InsiderRoleSoldBoughtFilingsPre-arranged (10b5-1)Last filed
Thomas M. SiebelExecutive Chairman → CEO and Chairman of the Board$65.8M—12100% of sales
Hitesh LathCHIEF FINANCIAL OFFICER$634.3K—3100% of sales
Jim H. SnabeDirector$80.8K$302.3K3—
Other insider activity (not market trades) · 118 records
  • Option exercises41 records
  • Tax withholding (sold to cover)20 records
  • Grants and awards6 records
  • Gifts40 records
  • Other11 records

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

Build this yourself

This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:

Agent prompt

Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for AI every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.

How to read this page

Open-market purchase or sale
A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
Pre-arranged (10b5-1)
The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
Role
The title on each filing. Someone whose title changed shows more than one.
Filing date
Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.