September 16, 2024 Leslie N. Lunak Chief Financial Officer BankUnited, Inc. 14817 Oak Lane Miami Lakes, FL 33016 Re: BankUnited, Inc. Form 10-K for the Fiscal Year Ended December 31, 2023 File No. 001-35039 Dear Leslie N. Lunak: We have reviewed your filing and have the following comments. Please respond to this letter within ten business days by providing the requested information or advise us as soon as possible when you will respond. If you do not believe a comment applies to your facts and circumstances, please tell us why in your response. After reviewing your response to this letter, we may have additional comments. Form 10-K for the Fiscal Year Ended December 31, 2023 Item 1A. Risk Factors The geographic concentration of our markets in Florida and the New York area, page 15 1. We note the reference to disruption or deterioration in the economic conditions or real estate markets in Florida and the New York Tri-State area. Given large geographic concentrations of your loans in these areas, please revise future filings to further clarify and provide additional disclosure on the risks inherent to your operations in these areas. By way of example only, we note risks related to the availability and cost of property insurance in Florida and risks related to rent controls in New York. Management's Discussion and Analysis of Financial Condition Interest Rate Risk, page 66 2. We note your disclosure on page 67 relating to the Economic Value of Equity (or EVE) analysis. We further note your statement that "[m]any assumptions were used by [you] to calculate the impact of changes in interest rates on forecasted net interest income and EVE." In future filings, please revise your disclosure to discuss the key assumptions underlying the EVE analysis. September 16, 2024 Page 2 We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Please contact John Spitz at 202-551-3484 or Michael Volley at 202-551-3437 if you have questions regarding comments on the financial statements and related matters. Please contact Robert Arzonetti at 202-551-8819 or Tonya Aldave at 202-551-3601 with any other questions. Sincerely, Division of Corporation Finance Office of Finance