AI stockholder plans Class A share sale

An affiliate of the issuer plans to sell up to 203,000 shares of Class A Common Stock on the NYSE, through J.P.

Rhea-AI Filing Summary

An affiliate of the issuer plans to sell up to 203,000 shares of Class A Common Stock on the NYSE, through J.P. Morgan Securities LLC, with an approximate aggregate market value of $1,843,240. The issuer reports 151,949,285 Class A shares outstanding as of the planned sale date of August 3, 2026. Over the prior three months, Thomas M. Siebel reported multiple Class A stock sales, including 27,210 shares on May 4, 2026 and 472,005 shares on June 15, 2026, in connection with a RSU vest on August 2, 2026.

Key Figures

Shares to be sold: 203000 shares Approximate aggregate market value: $1843240 Shares outstanding: 151949285 shares +4 more

7 metrics

Shares to be sold 203000 shares Planned sale of Class A Common Stock on August 3, 2026

Approximate aggregate market value $1843240 Value of 203,000 Class A shares to be sold

Shares outstanding 151949285 shares Class A Common shares reported outstanding in connection with the notice

Sale on May 4, 2026 27210 shares Class A Common Stock sold by Thomas M. Siebel on 05/04/2026

Sale on May 15, 2026 369624 shares Class A Common Stock sold by Thomas M. Siebel on 05/15/2026

Sale on June 15, 2026 472005 shares Class A Common Stock sold by Thomas M. Siebel on 06/15/2026

Sale on July 15, 2026 198465 shares Class A Common Stock sold by Thomas M. Siebel on 07/15/2026

Key Terms

Form 144, Class A Common Stock, RSU Vest, aggregate market value

4 terms

Form 144 regulatory

"144: Securities To Be Sold"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Class A Common Stock financial

"Class A Common Stock | 08/02/2026 | RSU Vest"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

RSU Vest financial

"Class A Common Stock | 08/02/2026 | RSU Vest | Issuer"

aggregate market value financial

"Class A Common | ... | 203000 | 1843240 | 151949285"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many AI Class A shares are planned to be sold under this Form 144?

Up to 203,000 shares of Class A Common Stock are planned for sale. These shares are to be sold on the NYSE through J.P. Morgan Securities LLC, with an approximate aggregate market value of $1,843,240 as disclosed.

When is the planned sale date for the AI Class A shares?

The planned sale date for the 203,000 Class A shares is August 3, 2026. This date appears in the issuer’s securities information, alongside the share amount, market value, and the NYSE listing detail.

How many AI Class A shares are reported as outstanding in this filing?

The filing reports 151,949,285 Class A Common shares outstanding as of the planned sale context. This figure provides a reference baseline separate from the 203,000 shares proposed for sale under the Form 144 notice.

Which broker is handling the planned sale of AI Class A shares?

The planned sale of 203,000 Class A shares is to be handled by J.P. Morgan Securities LLC, located at 270 Park Avenue, 10th Floor, New York, NY 10017, according to the securities information section.

What prior AI stock sales by Thomas M. Siebel are disclosed in the last 3 months?

Several prior sales are listed, including 27,210 shares on May 4, 2026, 369,624 shares on May 15, 2026, and 472,005 shares on June 15, 2026. Each entry includes Class A Common Stock, dates, and associated dollar values.

How does the RSU vesting relate to the AI shares in this Form 144?

The filing notes Class A Common Stock with a RSU Vest on August 2, 2026 from the issuer, associated with 203,000 shares. This relates to restricted stock units converting into Class A shares before the planned sale.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/03/2026 - 04:03 PM Accepted by SEC EDGAR 08/03/2026 - 04:03 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001031530
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	C3.ai, Inc.
SEC File Number	001-39744
Address of Issuer	1400 SEAPORT BLVD REDWOOD CITY CALIFORNIA 94063
Phone	650-503-2200
Name of Person for Whose Account the Securities are To Be Sold	Thomas M. Siebel
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer and Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Class A Common	J.P. Morgan Securities LLC 270 Park Avenue 10th Floor New York NY 10017	203000	1843240	151949285	08/03/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Class A Common Stock	08/02/2026	RSU Vest	Issuer			203000	08/02/2026	NA

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Thomas M. Siebel 1400 SEAPORT BLVD REDWOOD CITY CA 94063	Class A Common Stock	05/04/2026	27210	252205
Thomas M. Siebel 1400 SEAPORT BLVD REDWOOD CITY CA 94063	Class A Common Stock	05/15/2026	369624	3221938
Thomas M. Siebel 1400 SEAPORT BLVD REDWOOD CITY CA 94063	Class A Common Stock	05/18/2026	112014	968641
Thomas M. Siebel 1400 SEAPORT BLVD REDWOOD CITY CA 94063	Class A Common Stock	06/01/2026	17350	196322
Thomas M. Siebel 1400 SEAPORT BLVD REDWOOD CITY CA 94063	Class A Common Stock	06/12/2026	23570	257368
Thomas M. Siebel 1400 SEAPORT BLVD REDWOOD CITY CA 94063	Class A Common Stock	06/15/2026	472005	5241899
Thomas M. Siebel 1400 SEAPORT BLVD REDWOOD CITY CA 94063	Class A Common Stock	07/14/2026	264100	2395413
Thomas M. Siebel 1400 SEAPORT BLVD REDWOOD CITY CA 94063	Class A Common Stock	07/15/2026	198465	1848741

144: Remarks and Signature

Remarks	This filing is for a sale of shares to cover taxes for Restricted Stock Units (RSUs) that will be acquired by the seller on 08/02/2026 , 09/01/2026 and on 09/11/2026.
Date of Notice	08/03/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Thomas M. Siebel.
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)