C3.AI Inc (AI) insider trading
Recent insider transactions reported to the SEC on Form 4 — directors and officers buying or selling their own company’s stock. Sourced directly from public SEC filings, latest filed Oct 16, 2026.
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- Filings shown
- 15
- Open-market buys
- 0
- Open-market sells
- 13
Counts cover the 15 most recent Form 4 filings Tradune holds for AI (filed Jul 16 – Oct 16, 2026); the score below covers only the trailing 90 days (0 buys, 10 sells). No completed check of AI's Form 4 list on SEC EDGAR is on record yet; the latest AI filing Tradune holds was filed Oct 16, 2026. This is not guaranteed to be the complete record — see AI's full Form 4 filing history on SEC EDGAR.
Open-market activity, last 90 days
Purchases (Form 4 code P) and sales (code S) on the 13 filings Tradune holds for AI filed Aug 4 – Oct 16, 2026. Grants, exercises, tax withholding and the other Form 4 transaction codes are left out.
10 open-market sales by Rule 10b5-1 checkbox
- On filings with the 10b5-1 box checked
- 4 sales· 899,611 sh
- checkbox disclosed
- On filings with the box not checked
- 2 sales· 43,857 sh
- not proof that no plan exists
- Not comparable
- 4 sales· 629,704 sh
- filed before Apr 1, 2023, or no checkbox value in the filing data
Counts are Form 4 lines as filed. The checkbox is one per filing, so every sale on a filing with the box checked is counted there even if only some of its transactions were under a plan; it records what the filer disclosed, and the three categories are not a judgement about why a sale was made.
| Insider | Buys | Sells | Shares bought | Shares sold | Value |
|---|---|---|---|---|---|
| Thomas M. SiebelCEO and Chairman of the Board | 0 | 7 | — | 1,512,095 | −$16,448,420 |
| Hitesh LathCHIEF FINANCIAL OFFICER | 0 | 3 | — | 61,077 | −$668,287 |
Value = shares × the price reported on each Form 4 (+ purchases, − sales); every open-market line in this window disclosed a price.
Summarises ~90 days of public SEC Form 4 activity — more distinct buyers, officer involvement and net buying score higher. A description of filing activity, not a rating or buy signal. How this score is computed →
How to read this: an open-market purchase (Form 4 code P) is a buy at the market price with the insider’s own money, as opposed to a grant, award or option exercise; an open-market sale is code S. When two or more distinct insiders report open-market purchases in the same 90-day window, this site labels that a cluster — a definition, not a forecast; see insider cluster buying. “Held after” is Form 4 Table I column 5; “Change” = shares ÷ holdings before the trade (held after − shares for an acquisition, held after + shares for a disposition).
Insider Buying at AI
No open-market insider purchases (Form 4 code P) were reported for AI between Jul 16, 2026 and Oct 16, 2026. The filings below may include other transaction types — sales, grants, option exercises, and tax withholding — shown for completeness; they are not open-market purchases.
Recent Form 4 filings
Source: SEC EDGAR Form 4 · transaction codes explained
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Disposition to issuer | 2,500 | $12.16 | 61,714 | −3.9% | Oct 15, 2026 |
† change in this filer’s own reported holding line (Form 4 Table I, col. 5), not of total company ownership; small prior holdings produce large percentages, so under 100 shares the prior holding is shown instead.
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Open-market sale 10b5-1 box checked | 435,363 | $11.82 | 722,362 | −38% | Oct 13, 2026 |
| Option exercise | 435,363 | $3.90 | 1,157,725 | +60% | Oct 13, 2026 |
| Option exercise Stock Option (Right to Buy) | 435,363 | — | — | — | Oct 13, 2026 |
“10b5-1 box checked” = the filer checked the Form 4 box stating that a transaction on the filing was made under a plan intended to satisfy Rule 10b5-1(c); “10b5-1 box not checked” = the box was left blank, which does not prove that no plan exists. The box applies to Form 4s filed from April 1, 2023; older filings, and boxes we could not read, carry no tag. What the 10b5-1 box means.
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Open-market sale 10b5-1 box checked | 20,000 | $12.37 | 305,250 | −6.1% | Oct 12, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Gift | 239 | — | 2,552 (indirect) | +10% | Sep 30, 2026 |
| Gift | 239 | — | 39,639 (indirect) | +0.6% | Sep 30, 2026 |
| Gift | 239 | — | 45,822 (indirect) | +0.5% | Sep 30, 2026 |
| Gift | 239 | — | 59,326 (indirect) | +0.4% | Sep 30, 2026 |
| Gift Class B Common Stock | 106,793 | — | — | — | Sep 30, 2026 |
| Gift Class B Common Stock | 106,793 | — | — | — | Sep 30, 2026 |
| Gift Class B Common Stock | 106,793 | — | — | — | Sep 30, 2026 |
| Gift Class B Common Stock | 106,793 | — | — | — | Sep 30, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Gift | 15,930 | — | 45,786 (indirect) | +53% | Sep 17, 2026 |
| Gift | 15,930 | — | 325,250 | −4.7% | Sep 17, 2026 |
| Gift | 29,856 | — | 341,180 | −8.0% | Sep 16, 2026 |
| Open-market sale 10b5-1 box not checked | 21,077 | $10.48 | 371,036 | −5.4% | Sep 16, 2026 |
| Gift | 29,856 | — | 29,856 (indirect) | — | Sep 16, 2026 |
| Option exercise | 8,007 | — | 371,113 | +2.2% | Sep 15, 2026 |
| Option exercise Restricted Stock Units | 20,000 | — | — | — | Sep 15, 2026 |
| Option exercise Restricted Stock Units | 1,000 | — | — | — | Sep 15, 2026 |
| Option exercise Restricted Stock Units | 8,007 | — | — | — | Sep 15, 2026 |
| Option exercise | 20,000 | — | 392,113 | +5.4% | Sep 15, 2026 |
| Option exercise | 1,000 | — | 372,113 | +0.3% | Sep 15, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Option exercise | 162,247 | $3.90 | 884,609 | +22% | Sep 16, 2026 |
| Open-market sale 10b5-1 box checked | 162,247 | $10.54 | 722,362 | −18% | Sep 16, 2026 |
| Option exercise Stock Option (Right to Buy) | 162,247 | — | — | — | Sep 16, 2026 |
| Option exercise | 282,001 | $3.90 | 1,004,363 | +39% | Sep 15, 2026 |
| Open-market sale 10b5-1 box checked | 282,001 | $10.90 | 722,362 | −28% | Sep 15, 2026 |
| Option exercise Stock Option (Right to Buy) | 282,001 | — | — | — | Sep 15, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Disposition to issuer | 2,500 | $10.79 | 64,214 | −3.7% | Sep 15, 2026 |
| Disposition to issuer | 2,500 | $9.93 | 66,714 | −3.6% | Aug 14, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Gift | 21,986 | — | 7,105,019 (indirect) | +0.3% | Sep 14, 2026 |
| Open-market sale 10b5-1 box not checked | 22,780 | $10.56 | 744,348 | −3.0% | Sep 14, 2026 |
| Gift | 21,986 | — | 722,362 | −3.0% | Sep 14, 2026 |
| Option exercise | 44,766 | — | 767,128 | +6.2% | Sep 11, 2026 |
| Option exercise Restricted Stock Units | 44,766 | — | — | — | Sep 11, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Gift | 15,846 | — | — | — | Sep 3, 2026 |
| Gift | 15,846 | — | — | — | Sep 3, 2026 |
| Open-market sale | 16,890 | $10.30 | — | — | Sep 2, 2026 |
| Option exercise | 32,736 | — | — | — | Sep 1, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Grant / award Option (Right to Buy) | 132,077 | — | — | — | Aug 25, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Option exercise | 453,314 | $3.90 | — | — | Aug 11, 2026 |
| Open-market sale | 453,314 | $10.51 | — | — | Aug 11, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Open-market sale | 20,000 | $10.00 | — | — | Aug 4, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Gift | 143,834 | — | — | — | Aug 4, 2026 |
| Gift | 143,834 | — | — | — | Aug 4, 2026 |
| Open-market sale | 139,500 | $9.61 | — | — | Aug 3, 2026 |
| Option exercise | 283,334 | — | — | — | Aug 2, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Disposition to issuer | 2,500 | $9.14 | — | — | Jul 15, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Open-market sale | 64,975 | $9.31 | — | — | Jul 15, 2026 |
| Option exercise | 133,490 | $3.90 | — | — | Jul 15, 2026 |
| Open-market sale | 133,490 | $9.32 | — | — | Jul 15, 2026 |
| Option exercise | 64,975 | $2.04 | — | — | Jul 15, 2026 |
| Option exercise | 264,100 | $2.04 | — | — | Jul 14, 2026 |
| Open-market sale | 264,100 | $9.07 | — | — | Jul 14, 2026 |
Insider filings reported around the same time
Other companies whose most recent Form 4 was filed closest to AI's (Oct 16, 2026).
Frequently asked about AI insider activity
How many insiders bought AI stock in these Form 4 filings?
No open-market purchases (Form 4 code P) of AI shares were reported by C3.AI Inc insiders between Jul 16, 2026 and Oct 16, 2026. The 15 filings shown on this page cover other transaction types — sales, grants, option exercises, and tax withholding.
Who filed the most recent Form 4 for AI?
The most recent Form 4 on this page was filed by John E. Hyten (Director) on Oct 16, 2026, reporting 1 transaction. The original document is linked from the filing list above on SEC EDGAR. Amended filings (Form 4/A) may later revise reported figures.
What was the largest open-market AI insider sale shown?
The largest open-market sale among the filings shown was 435,363 AI shares at $11.82 (about $5,145,076) by Thomas M. Siebel (CEO and Chairman of the Board) on Oct 13, 2026. Value is shares × the price reported on the Form 4; that Form 4 has the Rule 10b5-1 box checked.
New to Form 4s? The transaction codes, the 90-day window and the 0–100 score are defined on the insider-activity score methodology page.
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Track AI insider filings free →This score summarizes SEC Form 4 filing activity over the trailing 90 days. It is descriptive, not predictive — not a rating, recommendation, or investment advice. Data: SEC EDGAR (public domain), as filed; amendments may revise figures. Tradune is not a registered investment adviser.
Data as filed; amended filings (Form 4/A) may revise figures. Sales may occur under prearranged Rule 10b5-1 trading plans.