X0306 4 2021-12-20 0 0001577526 C3.ai, Inc. AI 0001241633 HOUSE PATRICIA A C/O C3.AI, INC. 1300 SEAPORT BLVD, SUITE 500 REDWOOD CITY CA 94063 1 0 0 0 Class A Common Stock 2021-12-20 4 M 0 1667 1.68 A 45397 D Class A Common Stock 2021-12-20 4 M 0 6250 1.86 A 51647 D Class A Common Stock 2021-12-20 4 M 0 3210 2.04 A 54857 D Class A Common Stock 2021-12-20 4 M 0 3518 3.90 A 58375 D Class A Common Stock 2021-12-20 4 M 0 37836 11.16 A 96211 D Class A Common Stock 217755 I See Footnote Stock Option (Right to Buy) 1.68 2021-12-20 4 M 0 1667 0.00 D 2026-07-18 Class A Common Stock 1667 0 D Stock Option (Right to Buy) 1.86 2021-12-20 4 M 0 6250 0.00 D 2026-11-29 Class A Common Stock 6250 0 D Stock Option (Right to Buy) 2.04 2021-12-20 4 M 0 3210 0.00 D 2027-11-07 Class A Common Stock 3210 19249 D Stock Option (Right to Buy) 3.90 2021-12-20 4 M 0 3518 0.00 D 2028-11-27 Class A Common Stock 3518 35166 D Stock Option (Right to Buy) 11.16 2021-12-20 4 M 0 37836 0.00 D 2030-08-26 Class A Common Stock 37836 113498 D The shares are held by the Patricia A. House 2020 2 Year GRAT created UTA dated September 22, 2020, of which the Reporting Person is trustee. Fully vested. Provided the Reporting Person remains a director of C3.ai, Inc. (the "Company") and attends in person the regularly scheduled meeting of the Board during each fiscal quarter, commencing on November 8, 2017, then 5% of the shares subject to the option shall vest on the last day of such fiscal quarter (the "First Option Quarterly Shares") during the term of the option, provided, however, if the Reporting Person fails to attend any such regularly scheduled meeting, then vesting for the First Option Quarterly Shares shall not occur and will be suspended (any such suspended First Option Quarterly Shares being referred to collectively as the "First Option Suspended Shares"). For any First Option Suspended Shares, such shares shall vest only following the fifth anniversary of November 8, 2017, if the Reporting Person satisfies the attendance requirements in subsequent periods. Due to rounding in connection with the reverse stock split, the total shares include 1 additional share that was not originally reported on the Reporting Person's Form 3. Provided the Reporting Person remains a director of the Company and attends in person the regularly scheduled meeting of the Board during each fiscal quarter, commencing on November 28, 2018, then 5% of the shares subject to the option shall vest on the last day of such fiscal quarter (the "Second Option Quarterly Shares") during the term of the option, provided, however, if the Reporting Person fails to attend any such regularly scheduled meeting, then vesting for the Second Option Quarterly Shares shall not occur and will be suspended (any such suspended Second Option Quarterly Shares being referred to collectively as the "Second Option Suspended Shares"). For any Second Option Suspended Shares, such shares shall vest only following the fifth anniversary of November 28, 2018, if the Reporting Person satisfies the attendance requirements in subsequent periods. Provided the Reporting Person remains a director of the Company and attends in person the regularly scheduled meeting of the Board during each fiscal quarter, commencing on August 28, 2020, then 5% of the shares subject to the option shall vest on the last day of such fiscal quarter (the "Third Option Quarterly Shares") during the term of the option, provided, however, if the Reporting Person fails to attend any such regularly scheduled meeting, then vesting for the Third Option Quarterly Shares shall not occur and will be suspended (any such suspended Third Option Quarterly Shares being referred to collectively as the "Third Option Suspended Shares"). For any Third Option Suspended Shares, such shares shall vest only following the fifth anniversary of August 28, 2020, if the Reporting Person satisfies the attendance requirements in subsequent periods. Exhibit List Exhibit 24 - Power of Attorney /s/ Richard J. Lutton, Jr., Attorney-in-Fact 2021-12-22