X0508 4 2026-03-09 0001504008 BankUnited, Inc. BKU 0001510616 Singh Rajinder P C/O BANKUNITED, INC 14817 OAK LANE MIAMI LAKES FL 33016 1 1 1 President and CEO Chairman of the Board 0 Common Stock, par value $0.01 per share 2026-03-09 4 M 0 125012 0 A 405419 D Common Stock, par value $0.01 per share 2026-03-09 4 M 0 64864 0 A 470283 D Common Stock, par value $0.01 per share 2026-03-09 4 D 0 189876 44.76 D 280407 D Performance Share Unit 2026-03-09 4 M 0 125012 0 D Common Stock, par value $0.01 per share 125012 0 D Restricted Share Unit 2026-03-09 4 M 0 64864 0 D Common Stock, par value $0.01 per share 64864 47855 D Each performance share 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. Each restricted share 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. 125,012 performance share units vested on December 31, 2025 and are fully vested. 31,952 restricted share units that vested on December 31, 2025 were granted under the BankUnited, Inc. 2014 Omnibus Equity Incentive Plan. The units granted under the BankUnited, Inc. 2023 Omnibus Equity Incentive Plan include 32,912 units that vested on December 31, 2025; 32,912 units that will vest on December 31, 2026; and 14,943 units that will vest on December 31, 2027. /s/ Jacqueline Bravo, as Attorney-in-Fact 2026-03-11