X0306 4 2017-03-02 0 0001504008 BankUnited, Inc. BKU 0001221213 PAULS DOUGLAS J C/O BANKUNITED, INC. 14817 OAK LANE MIAMI LAKES FL 33016 1 0 0 0 Common Stock, par value $0.01 per share 2017-01-30 5 G 0 E 1000 D 31380 D Common Stock, par value $0.01 per share 2017-03-02 4 M 0 11200 22.31 A 42580 D Common Stock, par value $0.01 per share 2017-03-02 4 S 0 11200 40.6027 D 31380 D Common Stock, par value $0.01 per share 31000 I As co-trustee Common Stock Option (right to buy) 22.31 2017-03-02 4 M 0 11200 0.00 D 2021-12-16 Common Stock, par value $0.01 per share 11200 22133 D Bona fide gift by the Reporting Person for no consideration. Reflects the sale of 11,200 shares of common stock by the reporting person under Rule 144 promulgated under the Securities Act of 1933, as amended. This price represents the weighted average sale price of trades transacted at a multitude of prices ranging from $40.48 to $40.87. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer, full information regarding the shares sold at each separate price. Shares held by the Pauls Family Foundation, for which Mr. Pauls serves as a co-trustee. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein and the inclusion of these share in this report shall not be deemed an admission of beneficial ownership of these shares for Section 16 or for any other purpose. Issued pursuant to the terms of the BankUnited, Inc. 2010 Omnibus Equity Incentive Plan. One-third of the options granted on December 16, 2011 vested on each of December 16, 2012 and 2013 before the reporting person's employment ended on December 31, 2013. /s/ Susan Greenfield, as Attorney-in-Fact 2017-03-03