X0306 4 2019-07-26 0 0001504008 BankUnited, Inc. BKU 0001782227 Richards Jay D. C/O BANKUNITED, INC. 14817 OAK LANE MIAMI LAKES FL 33016 0 1 0 0 Officer of Subsidiary Common Stock, par value $0.01 per share 2019-07-26 4 S 0 1782 34.448 D 14965 D Includes 14,965 restricted shares of which 4,982 shares vest on March 1, 2020, 4,983 shares vest on March 1, 2021, 2,500 shares vest on March 1, 2022 and 2,500 shares vest on March 1, 2023. The Reporting Person is Chief Credit Officer of BankUnited, N.A., a wholly owned subsidiary of BankUnited, Inc. /s/ Susan Greenfield as Attorney-in-Fact 2019-07-26