X0306 4 2022-04-20 0 0000005981 AMERICAN VANGUARD CORP AVD 0001702134 Porpiglia Peter 4695 MACARTHUR COURT, STE 1200 NEWPORT BEACH CA 92660 0 1 0 0 See Remarks Common Stock 2022-03-28 4 F 0 1551 19.66 D 32674 D Common Stock 2022-04-20 4 A 0 1264 0.00 A 33938 D These shares were forfeited at the election of reporting person in order to cover payroll taxes arising from the vesting of 3,057 shares of time-based restricted stock that had been awarded on March 28, 2019 and vested on March 28, 2022. These comprise an award of time-based restricted stock that vests in its entirety on April 20, 2023, if and only if reporting person is continuously employed by issuer through such vesting date as per the terms of a Restricted Stock Agreement dated as of April 20, 2022. Vice President Product Dev't (AMVAC) /s/ PETER PORPIGLIA 2022-04-22