X0306 4 2021-10-28 0 0001745041 IAA, Inc. IAA 0001536250 Healy Susan L. TWO WESTBROOK CORPORATE CENTER SUITE 500 WESTCHESTER IL 60154 0 1 0 0 Chief Financial Officer Common Stock 2021-10-28 4 A 0 2072 0.00 A 2072 D Common Stock 2021-10-28 4 A 0 4491 0.00 A 6563 D Represents a grant of restricted stock units that vest in three substantially equal annual installments beginning on the first anniversary of the grant date, subject to the Reporting Person's continued employment with the Issuer. Each restricted stock unit represents the right to receive one share of the Issuer's common stock. Represents a grant of restricted stock units that vest in two substantially equal annual installments beginning on the second anniversary of the grant date, subject to the Reporting Person's continued employment with the Issuer. Each restricted stock unit represents the right to receive one share of the Issuer's common stock. Susan Healy /s/ Sidney Peryar as attorney-in-fact 2021-11-01