X0306 4 2019-03-26 0 0001504008 BankUnited, Inc. BKU 0001578337 LUNAK LESLIE C/O BANKUNITED, INC. 14817 OAK LANE MIAMI LAKES FL 33016 0 1 0 0 Chief Financial Officer Restricted Stock Unit 2019-03-26 4 A 0 9362 0.00 A Common Stock, par value $0.01 per share 9362 9362 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. 2,341 units will vest on December 31, 2019, 2,340 units will vest on December 31, 2020, 2,340 units will vest on December 31, 2021, and 2,341 units will vest on December 31, 2022. /s/ Susan Greenfield, Attorney-in-Fact 2019-03-27