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C3.ai, Inc. (NYSE: AI) CEO trades 462,565 shares under 10b5-1 plan

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

C3.ai, Inc. CEO and Chairman Thomas M. Siebel reported option exercises and related stock sales in Class A Common Stock. Over July 14–15, 2026, he exercised options for 462,565 shares at strike prices of $3.90 and $2.04, and sold the same number of shares in open-market transactions at line-item prices of $9.07, $9.31 and $9.32 per share, with individual trades occurring between $8.83 and $9.60. The sales were effected under a previously established Rule 10b5-1 trading plan dated September 20, 2024. After these transactions, he holds 722,362 shares directly, additional indirect positions through several investment entities and a family trust, and retains stock options for 2,866,510 shares at a $3.90 exercise price expiring November 27, 2028, and 64,975 shares at a $2.04 exercise price expiring November 7, 2027.

Positive

  • None.

Negative

  • None.
Insider SIEBEL THOMAS M
Role CEO and Chairman of the Board
Sold 462,565 shs ($4.24M)
Type Security Shares Price Value
Exercise Stock Option (Right to Buy) 64,975 $0.00 --
Exercise Stock Option (Right to Buy) 133,490 $0.00 --
Exercise Class A Common Stock 64,975 $2.04 $133K
Sale Class A Common Stock 64,975 $9.31 $605K
Exercise Class A Common Stock 133,490 $3.90 $521K
Sale Class A Common Stock 133,490 $9.32 $1.24M
Exercise Stock Option (Right to Buy) 264,100 $0.00 --
Exercise Class A Common Stock 264,100 $2.04 $539K
Sale Class A Common Stock 264,100 $9.07 $2.40M
holding Class A Common Stock -- -- --
holding Class A Common Stock -- -- --
holding Class A Common Stock -- -- --
holding Class A Common Stock -- -- --
Holdings After Transaction: Stock Option (Right to Buy) — 0 shares (Direct); Class A Common Stock — 787,337 shares (Direct); Class A Common Stock — 9,216 shares (Indirect, See Footnote)
Footnotes (1)
  1. The transaction being reported was effected pursuant to a previously established Rule 10b5-1 trading plan dated September 20, 2024. The price reported is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $8.83 to $9.225, inclusive. The Reporting Person will provide upon request to the staff of the Securities and Exchange Commission, the Issuer or any security holder of the Issuer, full information regarding the number of shares sold at each separate price. The price reported is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $9.16 to $9.60, inclusive. The Reporting Person will provide upon request to the staff of the Securities and Exchange Commission, the Issuer or any security holder of the Issuer, full information regarding the number of shares sold at each separate price. The shares are held by First Virtual Holdings, LLC, of which the Reporting Person is Chairman. The shares are held by Siebel Asset Management, L.P., of which the Reporting Person is the general partner. The shares are held by Siebel Asset Management III, L.P., of which the Reporting Person is the general partner. The shares are held by The Siebel 2011 Irrevocable Children's Trust, of which the Reporting Person is co-trustee. Fully vested.
Shares sold 462,565 shares Total C3.ai Class A Common Stock sold in open-market transactions on July 14–15, 2026
Options exercised 462,565 shares Total C3.ai Class A shares underlying stock options exercised on July 14–15, 2026
Direct holdings after trades 722,362 shares C3.ai Class A shares held directly by Thomas M. Siebel following the reported transactions
Remaining options at $3.90 2,866,510 options Stock options with $3.90 exercise price expiring November 27, 2028 remaining after the July 15, 2026 exercise
Remaining options at $2.04 64,975 options Stock options with $2.04 exercise price expiring November 7, 2027 remaining after the July 14–15, 2026 exercises
Largest single-day sale 264,100 shares at $9.07 Open-market sale of C3.ai Class A shares on July 14, 2026 at $9.07 per share
Reported sale price range $8.83–$9.60 per share Ranges of individual trade prices in weighted-average sales disclosed in footnotes
Rule 10b5-1 trading plan financial
"The transaction was effected pursuant to a previously established Rule 10b5-1 trading plan"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted-average price financial
"The price reported is a weighted-average price. These shares were sold in multiple transactions"
Weighted-average price is the average of multiple prices where each price is counted according to its size or importance—larger trades carry more weight than smaller ones, like averaging course grades by credit hours. It matters to investors because it gives a more realistic picture of the true price paid or received, helping assess trade execution, compare performance, calculate cost basis, and value positions more accurately than a simple average.
Stock Option (Right to Buy) financial
"security_title: Stock Option (Right to Buy) with underlying Class A Common Stock"
co-trustee financial
"The shares are held by The Siebel 2011 Irrevocable Children's Trust, of which the Reporting Person is co-trustee."
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FAQ

What did C3.ai (AI) CEO Thomas Siebel report in this Form 4?

Thomas Siebel reported option exercises and related stock sales in C3.ai Class A shares. Over July 14–15, 2026, he exercised options for 462,565 shares and sold the same number in open-market transactions, largely as an exercise-and-sell sequence.

How many C3.ai (AI) shares did Thomas Siebel sell and at what prices?

Siebel sold 462,565 C3.ai Class A shares in total. Line-item sale prices were $9.07, $9.31 and $9.32 per share, with individual trades executed within weighted-average ranges from $8.83–$9.225 and $9.16–$9.60 per share.

Were Thomas Siebel’s C3.ai (AI) stock sales made under a Rule 10b5-1 plan?

Yes. A footnote states the reported transaction was effected under a previously established Rule 10b5-1 trading plan dated September 20, 2024. Such plans pre-schedule trades, making their timing less discretionary than ad hoc market sales.

How many C3.ai (AI) shares and options does Thomas Siebel hold after these transactions?

Following the reported trades, Siebel holds 722,362 C3.ai Class A shares directly, plus additional indirect holdings through several entities and a family trust. He also retains options for 2,866,510 shares at $3.90 and 64,975 shares at $2.04 exercise prices.

What stock options did Thomas Siebel exercise in C3.ai (AI) on July 14–15, 2026?

He exercised options covering 462,565 C3.ai shares. These included 133,490 shares at a $3.90 strike and additional tranches at a $2.04 strike, corresponding to grants expiring in 2027 and 2028, and then sold the acquired shares.
SEC Form 4
FORM 4UNITED 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).
X
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, SUITE 500

(Street)
REDWOOD CITY CALIFORNIA 94603

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
C3.ai, Inc. [ AI ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirectorX10% Owner
XOfficer (give title below)Other (specify below)
CEO and Chairman of the Board
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/14/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Class A Common Stock07/14/2026M(1)264,100A$2.04986,462D
Class A Common Stock07/14/2026S(1)264,100D$9.07(2)722,362D
Class A Common Stock07/15/2026M(1)64,975A$2.04787,337D
Class A Common Stock07/15/2026S(1)64,975D$9.31(3)722,362D
Class A Common Stock07/15/2026M(1)133,490A$3.9855,852D
Class A Common Stock07/15/2026S(1)133,490D$9.32(3)722,362D
Class A Common Stock9,216ISee Footnote(4)
Class A Common Stock170,294ISee Footnote(5)
Class A Common Stock72,695ISee Footnote(6)
Class A Common Stock1,237,115ISee Footnote(7)
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (Right to Buy)$2.0407/14/2026M(1)264,100 (8)11/07/2027Class A Common Stock264,100$064,975D
Stock Option (Right to Buy)$2.0407/15/2026M(1)64,975 (8)11/07/2027Class A Common Stock64,975$00D
Stock Option (Right to Buy)$3.907/15/2026M(1)133,490 (8)11/27/2028Class A Common Stock133,490$02,866,510D
Explanation of Responses:
1. The transaction being reported was effected pursuant to a previously established Rule 10b5-1 trading plan dated September 20, 2024.
2. The price reported is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $8.83 to $9.225, inclusive. The Reporting Person will provide upon request to the staff of the Securities and Exchange Commission, the Issuer or any security holder of the Issuer, full information regarding the number of shares sold at each separate price.
3. The price reported is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $9.16 to $9.60, inclusive. The Reporting Person will provide upon request to the staff of the Securities and Exchange Commission, the Issuer or any security holder of the Issuer, full information regarding the number of shares sold at each separate price.
4. The shares are held by First Virtual Holdings, LLC, of which the Reporting Person is Chairman.
5. The shares are held by Siebel Asset Management, L.P., of which the Reporting Person is the general partner.
6. The shares are held by Siebel Asset Management III, L.P., of which the Reporting Person is the general partner.
7. The shares are held by The Siebel 2011 Irrevocable Children's Trust, of which the Reporting Person is co-trustee.
8. Fully vested.
Remarks:
/s/ Sasha Pesic, Attorney-in-Fact07/16/2026
** Signature of Reporting PersonDate
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: SEC 1474 (03-26)