X0306 4 2019-03-01 0 0001504008 BankUnited, Inc. BKU 0001699667 Bansal Rishi 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 2019-03-01 4 F 0 6508 36.65 D 38244 D Shares of BankUnited, Inc. common stock withheld by the Issuer to satisfy the tax withholding obligation of the reporting person arising from the vesting of restricted shares on March 1, 2019. These shares were not sold by the reporting person but were instead withheld from the total number of vested shares received by the reporting person from the Issuer. The Reporting Person is the Chief Investment Officer of BankUnited, N.A., a wholly owned subsidiary of BankUnited, Inc. /s/ Susan Greenfield as Attorney-in-Fact 2019-03-05