Gift4

C3.ai, Inc.

Total Value

Filing Date

Oct 2, 2026

4 transactions

Trade Summary

On Sep 30, 2026, SIEBEL THOMAS M, Insider, reported $0 of C3.ai, Inc. (AI) across 4 transactions. The filing covers Class A Common Stock and reflects balanced net activity of $0. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Insider Information

Name: SIEBEL THOMAS M
Role: Insider
Location: REDWOOD CITY, CA

Filing Details

Filing Date: Oct 2, 2026
Transaction Date: Sep 30, 2026
Accession Number: 0001031530-26-000011
Form Type: 4

Non-Derivative Transactions

Date	Security	Shares	Price	Type	Value
Sep 30, 2026	Class A Common Stock	239	—	Bona Fide Gift	—
Sep 30, 2026	Class A Common Stock	239	—	Bona Fide Gift	—
Sep 30, 2026	Class A Common Stock	239	—	Bona Fide Gift	—
Sep 30, 2026	Class A Common Stock	239	—	Bona Fide Gift	—

Derivative Transactions

Date	Security	Shares	Exercise Price	Type	Value
Sep 30, 2026	AI derivative	106,793	—	Bona Fide Gift	—
Sep 30, 2026	AI derivative	106,793	—	Bona Fide Gift	—
Sep 30, 2026	AI derivative	106,793	—	Bona Fide Gift	—
Sep 30, 2026	AI derivative	106,793	—	Bona Fide Gift	—

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Footnotes

(F1)Includes shares of Class A Common Stock received in pro-rata distributions of all 170,294 and 72,695 shares of Class A Common Stock held by Siebel Asset Management L.P. and Siebel Asset Management III, L.P., respectively, to their partners in transactions that constituted a change in beneficial ownership exempt under Rule 16a-13.
(F2)The shares are held by RS DE Investments LLC, of which the Reporting Person is the manager.
(F3)The shares are held by CS DE Investments LLC, of which the Reporting Person is the manager.
(F4)The shares are held by TS DE Investments LLC, of which the Reporting Person is the manager.
(F5)The shares are held by HS DE Investments LLC, of which the Reporting Person is the manager.
(F6)The shares are held by The Siebel Living Trust u/a/d 7/27/93, as amended, of which the Reporting Person is trustee.
(F7)The shares are held by First Virtual Holdings, LLC, of which the Reporting Person is trustee.
(F8)The shares are held by HS ET DE Investments LLC, of which the Reporting Person is the manager.
(F9)The shares are held by Siebel Legacy Investments I LLC, of which the Reporting Person is the manager.
(F10)Represents shares of Class A Common Stock transferred from The Siebel 2011 Irrevocable Children's Trust in a transaction that constituted a change in beneficial ownership exempt under Rule 16a-13.
(F11)The shares are held by Siebel Legacy Investments II LLC, of which the Reporting Person is the manager.
(F12)Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

SIEBEL THOMAS M

(Last)

(First)

(Middle)

C/O C3.AI, INC.

1400 SEAPORT BLVD

(Street)

REDWOOD CITY

94603

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
C3.ai, Inc. [ AI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	CEO and Chairman of the Board

3. Date of Earliest Transaction (Month/Day/Year)
09/30/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A Common Stock	09/30/2026		G		239	A	$0	45,822⁽¹⁾	I	See Footnote⁽²⁾
Class A Common Stock	09/30/2026		G		239	A	$0	59,326⁽¹⁾	I	See Footnote⁽³⁾
Class A Common Stock	09/30/2026		G		239	A	$0	39,639⁽¹⁾	I	See Footnote⁽⁴⁾
Class A Common Stock	09/30/2026		G		239	A	$0	2,552⁽¹⁾	I	See Footnote⁽⁵⁾
Class A Common Stock								722,362	D
Class A Common Stock								7,105,832⁽¹⁾	I	See Footnote⁽⁶⁾
Class A Common Stock								13,066⁽¹⁾	I	See Footnote⁽⁷⁾
Class A Common Stock								37,327⁽¹⁾	I	See Footnote⁽⁸⁾
Class A Common Stock								54,616⁽¹⁾	I	See Footnote⁽⁹⁾
Class A Common Stock								1,237,115⁽¹⁰⁾	I	See Footnote⁽¹¹⁾

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Class B Common Stock	⁽¹²⁾	09/30/2026		G		106,793		⁽¹²⁾	⁽¹²⁾	Class A Common Stock	106,793	$0	106,793	I	See Footnote⁽²⁾
Class B Common Stock	⁽¹²⁾	09/30/2026		G		106,793		⁽¹²⁾	⁽¹²⁾	Class A Common Stock	106,793	$0	106,793	I	See Footnote⁽³⁾
Class B Common Stock	⁽¹²⁾	09/30/2026		G		106,793		⁽¹²⁾	⁽¹²⁾	Class A Common Stock	106,793	$0	106,793	I	See Footnote⁽⁴⁾
Class B Common Stock	⁽¹²⁾	09/30/2026		G		106,793		⁽¹²⁾	⁽¹²⁾	Class A Common Stock	106,793	$0	106,793	I	See Footnote⁽⁵⁾
Class B Common Stock	⁽¹²⁾							⁽¹²⁾	⁽¹²⁾	Class A Common Stock	2,072,820		2,072,820	I	See Footnote⁽⁶⁾
Class B Common Stock	⁽¹²⁾							⁽¹²⁾	⁽¹²⁾	Class A Common Stock	500,000		500,000	I	See Footnote⁽⁷⁾

Explanation of Responses:

1. Includes shares of Class A Common Stock received in pro-rata distributions of all 170,294 and 72,695 shares of Class A Common Stock held by Siebel Asset Management L.P. and Siebel Asset Management III, L.P., respectively, to their partners in transactions that constituted a change in beneficial ownership exempt under Rule 16a-13.

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

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

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

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

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

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

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

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

10. Represents shares of Class A Common Stock transferred from The Siebel 2011 Irrevocable Children's Trust in a transaction that constituted a change in beneficial ownership exempt under Rule 16a-13.

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

12. Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock.

	/s/ Tom MacMitchell, Attorney-in-Fact	10/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Form 4 as rendered by the SEC from accession 0001031530-26-000011.

C3.ai, Inc.

Trade Summary

Company Information

Insider Information

Filing Details

Non-Derivative Transactions

Derivative Transactions

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Footnotes

SEC Form 4

SEC Filing

SEC Form 4