 WESTCHESTER, Ill.--BUSINESS WIRE--IAA, Inc. NYSE: IAA today announced its financial results for the fourth quarter and full year fiscal 2020, which ended December 27, 2020. John Kett, Chief Executive Officer and President, stated, We ended an unprecedented year with a fourth quarter return to overall revenue growth, as gradually recovering assignment and volume levels were accompanied by continued strength in revenue per unit. The challenges of this pandemic-impacted year have tested us al 