X0306 4 2020-04-30 0 0000005981 AMERICAN VANGUARD CORP AVD 0001429458 Johnson David` T. 4695 MACARTHUR COURT, STE 1200 NEWPORT BEACH CA 92660 0 1 0 0 CFO & Treasurer Common Stock 2020-04-30 4 F 0 9657 0.00 D 45253 D On February 8, 2017, reporting person was awarded 13,098 shares of restricted stock. One half were time-based (vesting in three years) and the other half were performance-based (the vesting of which depended upon the attainment of certain financial metrics more fully described in the subject Performance Shares Agreement). Issuer has determined that, based upon its having outperformed certain of those performance metrics during the performance period, reporting person is entitled to receive 170% of the target performance shares or 4,585 additional shares. Thus, taken together, reporting person received 17,683 shares pursuant to the original grant. In order to cover payroll taxes due in connection with the vesting of these shares, reporting person forfeited 9,657 shares, thus leaving a net decrease of 5,072 from his previous share total. /s/ David T. Johnson 2020-05-04