X0306 4 2021-06-10 0 0001577526 C3.ai, Inc. AI 0001333063 CLEVELAND BRUCE A C/O C3.AI, INC. 1300 SEAPORT BLVD, SUITE 500 REDWOOD CITY CA 94063 0 1 0 0 Senior VP and CMO Class A Common Stock 2021-06-10 4 M 0 50000 4.68 A 71367 D Class A Common Stock 2021-06-10 4 S 0 20989 58.32 D 50378 D Class A Common Stock 2021-06-10 4 S 0 13377 59.34 D 37001 D Class A Common Stock 2021-06-10 4 S 0 6243 60.28 D 30758 D Class A Common Stock 2021-06-10 4 S 0 8925 61.36 D 21833 D Class A Common Stock 2021-06-10 4 S 0 466 62.37 D 21367 D Class A Common Stock 241 I See Footnote Option (Right to Buy) 4.68 2021-06-10 4 M 0 50000 0.00 D 2029-11-12 Class A Common Stock 50000 921767 D Represents weighted average sales price. The shares were sold at prices ranging from $57.92 to $58.91. 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. Represents weighted average sales price. The shares were sold at prices ranging from $58.92 to $59.91. 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. Represents weighted average sales price. The shares were sold at prices ranging from $59.92 to $60.81. 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. Represents weighted average sales price. The shares were sold at prices ranging from $60.97 to $61.91. 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 Cleveland Family Trust, of which the Reporting Person is trustee. Twenty percent (20%) of the shares subject to the option grant vested on November 4, 2020, and the remaining eighty percent (80%) of each 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/ Brady Mickelsen, Attorney-in-Fact 2021-06-14