X0407 4 2023-06-27 0 0001577526 C3.ai, Inc. AI 0001218471 ABBO EDWARD Y C/O C3.AI, INC. 1400 SEAPORT BLVD REDWOOD CITY CA 94063 0 1 0 0 Chief Technology Officer 1 Class A Common Stock 2023-06-27 4 M 0 179191 1.56 A 508301 D Class A Common Stock 2023-06-27 4 M 0 107143 1.68 A 615444 D Class A Common Stock 2023-06-27 4 M 0 250000 1.86 A 865444 D Class A Common Stock 2023-06-27 4 M 0 47874 2.82 A 913318 D Class A Common Stock 2023-06-27 4 M 0 114190 4.56 A 1027508 D Class A Common Stock 2023-06-27 4 M 0 80854 4.56 A 1108362 D Class A Common Stock 2023-06-27 4 S 0 457585 32.96 D 650777 D Class A Common Stock 149577 I See Footnote Class A Common Stock 149578 I See Footnote Class A Common Stock 149578 I See Footnote Stock Option (Right to Buy) 1.56 2023-06-27 4 M 0 179191 0.00 D 2024-01-20 Class A Common Stock 179191 0 D Stock Option (Right to Buy) 1.68 2023-06-27 4 M 0 107143 0.00 D 2026-07-12 Class A Common Stock 107143 0 D Stock Option (Right to Buy) 1.86 2023-06-27 4 M 0 250000 0.00 D 2026-11-29 Class A Common Stock 250000 0 D Stock Option (Right to Buy) 2.82 2023-06-27 4 M 0 47874 0.00 D 2028-05-22 Class A Common Stock 47874 0 D Stock Option (Right to Buy) 4.56 2023-06-27 4 M 0 114190 0.00 D 2029-06-12 Class A Common Stock 114190 30548 D Stock Option (Right to Buy) 4.56 2023-06-27 4 M 0 80854 0.00 D 2030-07-05 Class A Common Stock 80854 63884 D Transaction pursuant to a previously established Rule 10b5-1 Plan dated March 22, 2023. Represents weighted average sales price. The shares were sold at prices ranging from $32.68 to $33.50. The Reporting Person will provide upon request, to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. The shares are held by the Abbo 2012 Children's Trust FBO Casey Cecile Abbo, of which the Reporting Person is trustee. The shares are held by the Abbo 2012 Children's Trust FBO Dana Lauren Abbo, of which the Reporting Person is trustee. The shares are held by the Abbo 2012 Children's Trust FBO Layla Grace Abbo, of which the Reporting Person is trustee. Fully vested. Due to rounding in connection with the reverse stock split, the total shares include 2 additional shares that was not originally reported on the Reporting Person's Form 3 Twenty percent (20%) of the shares subject to the option grant vested on May 1, 2020, and the remaining eighty percent (80%) of such grant vests on a monthly basis for the following four years, so long as the Reporting Person continues to provide services through such vesting dates. Twenty percent (20%) of the shares subject to the option grant vested on May 1, 2021, and the remaining eighty percent (80%) of such grant vests on a monthly basis for the following four years, so long as the Reporting Person continues to provide services through such vesting dates. /s/ Eric C. Jensen, Attorney-in-Fact 2023-06-29