X0306 4 2020-03-31 0 0001504008 BankUnited, Inc. BKU 0001510616 Singh Rajinder P C/O BANKUNITED, INC. 14817 OAK LANE MIAMI LAKES FL 33016 1 1 0 1 President and CEO Chairman of the Board Restricted Stock Unit 2020-03-31 4 A 0 54705 0.00 A Common Stock, par value $0.01 per share 54705 54705 D Each restricted stock unit represents the right to receive, at settlement, one share of common stock or cash in an amount equal to the fair market value of one share of common stock. Issued pursuant to the terms of the BankUnited, Inc. 2014 Omnibus Equity Incentive Plan. 13,677 units will vest on December 31, 2020, 13,676 units will vest on December 31, 2021, 13,676 units will vest on December 31, 2022, and 13,676 units will vest on December 31, 2023. /s/ Susan Greenfield, Attorney-in-Fact 2020-04-01