X0306 4 2021-06-16 0 0001745041 IAA, Inc. IAA 0001748289 Bales Brian A TWO WESTBROOK CORPORATE CENTER, SUITE 500 WESTCHESTER IL 60154 1 0 0 0 Common Stock 2021-06-16 4 A 0 2412 0.00 A 8204 D Represents a stock unit award granted on June 16, 2021, which will vest in full on the earlier of the one-year anniversary of the grant date or the day preceding the Issuer's next annual meeting of stockholders following the grant date. Includes 5,436 stock units subject to a deferral option. Brian Bales, /s/ Sidney Peryar as attorney-in-fact 2021-07-02