Exhibit 99.1

FCB Financial Holdings, Inc. Reports First Quarter 2015 Financial Results

Weston, Fla. – FCB Financial Holdings, Inc. (NYSE:FCB) (the “Company”) today reported financial results for the first quarter of 2015. For the quarter ended March 31, 2015, after deducting the previously disclosed one-time pre-tax charge of $65.5 million in conjunction with the early termination of all loss share agreements, the Company reported a net loss of $16.9 million, or $0.41 per diluted share.

On a core net income basis, the Company had a record quarter. The Company reported core net income for the first quarter of 2015 of $18.1 million, or $0.43 per diluted share. Core net income rose 254% year-over-year and 43% sequentially. This resulted in a core ROA of 121 basis points which represents an increase of 177% year-over-year and 45% sequentially.

The Company views certain non-recurring items, including but not limited to merger related and restructuring charges, gain/(loss) on investment securities and their corresponding tax effect, as core adjustments to net income. Core adjustments for the first quarter of 2015 included a $65.5 million one-time charge as a result of early termination of all loss share agreements with the FDIC, $5.0 million of deferred tax asset benefit due to better than expected performance of the Great Florida Bank (“GFB”) acquisition, $0.2 million in professional services expense related to the termination of FDIC loss share agreements, $0.2 million of severance expense, $0.1 million of other operating expenses and $1.0 million of gain on investment securities.

The reconciliation of non-GAAP measures (including core net income, core efficiency ratio, core ROA, tangible book value and tangible book value per share), which the Company believes facilitate the assessment of its banking operations and peer comparability, are included in tabular form at the end of this release.

Kent Ellert, Chief Executive Officer and President of FCB Financial Holdings, Inc., commented, “We are pleased by our record first quarter core operating results, having achieved a core ROA of 1.21% and core efficiency ratio of 48.9%. We are excited about our continued organic loan and deposit momentum as well as the strategic and financial benefits due to the early termination of our FDIC loss share agreements.”

Loan Portfolio and Composition

During the quarter, the total loan portfolio, gross of the allowance for loan losses, grew by $189.5 million to $4.1 billion at March 31, 2015, an increase of 5% from $3.9 billion as of December 31, 2014 and 40% from $2.9 billion as of March 31, 2014.

Our new loan portfolio totaled $3.4 billion as of March 31, 2015, an increase of 8% from $3.1 billion as of December 31, 2014 and 74% from $1.9 billion as of March 31, 2014. Our loan growth during the quarter was a result of $397 million of new loan fundings, consisting of $308 million of organic production and $89 million of

purchased residential mortgages. Organic loan production for the quarter consisted of $112 million of commercial and industrial, $74 million of commercial real estate and $122 million of residential and consumer. As of March 31, 2015 new loans made up 81% of our total loan portfolio as compared to 79% and 66% as of December 31, 2014 and March 31, 2014, respectively.

Our acquired loan portfolio totaled $764.6 million as of March 31, 2015, a decrease of 7% from $826.2 million as of December 31, 2014 and a decrease of 24% from $1.0 billion as of March 31, 2014. The decrease in the current quarter was driven by resolutions totaling $35.7 million as well as scheduled loan amortization. As of March 31, 2015, acquired loans made up 19% of our total loan portfolio as compared to 21% and 34% as of December 31, 2014 and March 31, 2014, respectively.

Asset Quality

The provision for loan losses of $1.3 million recorded for the first quarter of 2015 includes a $1.3 million provision for new loans and a $73 thousand provision for the acquired loan portfolio. The provision for new loans served to increase the related allowance to $17.3 million, or 0.52% of the $3.4 billion in new loans outstanding. There were no new loan portfolio charge-offs in the first quarter of 2015 and no nonperforming new loans in the portfolio as of March 31, 2015.

Deposits and Borrowings

Deposits totaled $4.2 billion as of March 31, 2015, an increase of 6% from $4.0 billion as of December 31, 2014 and an increase of 13% from $3.7 billion as of March 31, 2014. During the first quarter of 2015, demand deposits increased by $76.2 million, or 11%, from December 31, 2014 and increased by $374.1 million, or 90%, from March 31, 2014. Demand deposits represent 19% of total deposits as of March 31, 2015 as compared to 18% and 11% as of December 31, 2014 and March 31, 2014, respectively. The cost of deposits improved to 55 basis points for the quarter, representing a basis point decline from the fourth quarter of 2014 and an 8 basis point decline from the first quarter of 2014. Continued growth in demand deposits drove the improvements sequentially and year-over-year.

Net Interest Margin and Net Interest Income

The net interest margin for the first quarter of 2015 was 3.58%, a decrease of 4 basis points both sequentially and year-over-year. The decrease from the fourth quarter of 2014 was due primarily to an average balance reduction in higher yielding acquired loans of $50.9 million.

Net interest income totaled $48.9 million in the first quarter of 2015, a decrease of 2% from $49.8 million in the fourth quarter of 2014 and an increase of 27% from $38.3 million in the first quarter of 2014. Interest income totaled $55.4 million for the first quarter of 2015, a decrease of 2% from $56.4 million in the fourth quarter of 2014 and an increase of 23% from $44.9 million in the first quarter of 2014. Interest income from new loans increased by $2.0 million, or 8%, from the fourth quarter of 2014 due to continued growth in the new loan portfolio. Interest income on acquired loans decreased by $2.5 million, or 13%, from the fourth quarter due to expected payoffs and resolutions of acquired loans. Interest expense remained relatively flat at $6.6 million for the first quarter of 2015 consistent with the fourth and first quarters of 2014.

Noninterest Income and Noninterest Expense

Noninterest income (loss) totaled ($54.1) million for the first quarter of 2015 primarily due to the one-time charge of ($65.5) million as a result of early termination of all FDIC loss share agreements. The Company continues to realize resolution of acquired asset income and gain on sales of other real estate owned stemming from its acquired asset portfolio. As a result of the early termination of the FDIC loss share agreements, the Company recognized all recoveries and gain on sales related to what were previously “covered assets” in its consolidated statement of income as these amounts are no longer shared with the FDIC. For the quarter, the Company realized

$4.9 million of noninterest income related to its acquired asset portfolio. Excluding the aforementioned one-time charge, the primary components of noninterest income for the quarter were loan and other fees, income from resolution of acquired assets, gain on sales of other real estate owned and gain on investment securities of $2.5 million, $3.4 million, $1.6 million and $1.0 million, respectively.

Noninterest expense totaled $30.7 million for the first quarter of 2015, a decrease of 3% from $31.5 million in the fourth quarter of 2014 and 11% from $34.5 million in the first quarter of 2014. For the quarter, the Company recorded non-core expenses of $0.2 million in professional services related to the early termination of the FDIC loss share agreements, $0.2 million of severance and $0.1 million of other operating expenses.

Financial Position

Capital ratios continue to be strong and well in excess of regulatory requirements. Our tangible common equity, Tier 1 leverage, and total risk-based capital ratios were 12.4%, 12.6% and 16.1% for the first quarter of 2015 respectively, compared to 13.0%, 12.8% and 17.6% for the fourth quarter of 2014, respectively. Stockholders’ equity totaled $846.8 million as of March 31, 2015, a decrease of 1% from $851.7 million as of December 31, 2014 primarily driven by a net loss of $16.9 million which was partially offset by a $9.9 increase in accumulated other comprehensive income. Tangible book value per common share is $18.30 as of March 31, 2015.

Conference Call

The Company will host a conference call today, Thursday, April 23, 2015 at 5:00 p.m. Eastern Time. Presentation materials related to the conference call are available on the Company’s website, www.floridacommunitybank.com, by navigating to Investor Relations.

The number to call for this interactive teleconference is (855) 238-8125, and please ask to join the FCB Financial Holdings, Inc. or FCB teleconference. Please dial in 10 minutes prior to the beginning of the call.

A telephonic replay of the conference call will be available through May 23, 2015, by dialing (877) 344-7529 and entering pass code 10063106.

The live broadcast of the conference call will also be available online at the Company’s website by following the link to Investor Relations. An on-line replay of the call will be available at the Company’s website for 90 days.

Forward-Looking Statements

This release may contain “forward-looking statements” within the meaning of the U.S. Private Securities Litigation Reform Act of 1995. Any statements about our expectations, beliefs, plans, strategies, predictions, forecasts, objectives or assumptions of future events or performance are not historical facts and may be forward-looking. These statements are often, but not always, made through the use of words or phrases such as “anticipates,” “believes,” “expects,” “can,” “could,” “may,” “predicts,” “potential,” “opportunity,” “should,” “will,” “estimate,” “plans,” “projects,” “continuing,” “ongoing,” “expects,” “seeks,” “intends” and similar words or phrases. Accordingly, these statements involve estimates, known and unknown risks, assumptions and uncertainties that could cause actual strategies, actions or results to differ materially from those expressed in them, and are not guarantees of timing, future results or other events or performance. Because forward-looking statements are necessarily only estimates of future strategies, actions or results, based on management’s current expectations, assumptions and estimates on the date hereof, and there can be no assurance that actual strategies, actions or results will not differ materially from expectations, you are cautioned not to place undue reliance on such statements. Additional information regarding certain risks, uncertainties and other factors that could cause actual strategies, actions and results to differ materially from those contemplated in forward-looking statements is included from time to time in our filings with the SEC, including under the heading “Risk Factors” in our recent Annual Report on Form 10-K. Any forward-looking statement speaks only as of the date on which it is made, and FCB Financial Holdings, Inc. undertakes no obligation to update any forward-looking statement, whether to reflect events or circumstances after the date on which the statement is made, to reflect new information or the occurrence of unanticipated events, or otherwise.

Use of Non-GAAP Financial Measures

Core net income, core efficiency ratio, core return-on-assets (“core ROA”), tangible book value and tangible book value per share are each non-GAAP financial measures used in this release. A reconciliation to what we believe to be the most directly comparable GAAP financial measures - net income in the case of core net income and core ROA, total net interest income, total noninterest income and total noninterest expense in the case of core efficiency ratio, and total shareholders’ equity in the case of tangible book value and tangible book value per share - appears in tabular form at the end of this release. The Company believes each of core net income, core efficiency ratio, and core ROA is useful for both investors and management to understand the effects of certain noninterest items and provides additional perspective on the Company’s performance over time and in comparison to the Company’s competitors. Neither core net income nor core ROA should be viewed as a substitute for net income, nor should core efficiency ratio be viewed as a substitute for total net interest income, total noninterest income and total noninterest expense. The Company believes that tangible book value and tangible book value per share are useful for both investors and management, among other things, as these are measures commonly used by financial institutions, regulators and investors to measure the capital adequacy of financial institutions. The Company believes these measures facilitate comparison of the quality and composition of the Company’s capital over time and in comparison to its competitors. These measures should not be viewed as a substitute for total stockholders’ equity.

These non-GAAP measures have inherent limitations, are not required to be uniformly applied and are not audited. They should not be considered in isolation or as a substitute for financial results and analyses of results reported under GAAP, and should be read in conjunction with the Company’s financial statements prepared in accordance with GAAP. These non-GAAP measures may not be comparable to similarly titled measures reported by other companies.

About FCB Financial Holdings, Inc.

FCB Financial Holdings, Inc. is a bank holding company with one wholly-owned national bank subsidiary, Florida Community Bank, National Association, headquartered in Weston, Florida, which operates 51 branches in Florida. Florida Community Bank offers a comprehensive range of traditional banking products and services to individuals, small and medium-sized businesses, some large businesses, and other local organizations and entities in its market areas. The Bank targets commercial customers engaged in a wide variety of industries including healthcare and professional services, retail and wholesale trade, tourism, agricultural services, manufacturing, distribution and distribution-related industries, technology, automotive, aviation, food products, building materials, residential housing and commercial real estate.

FCB FINANCIAL HOLDINGS, INC. AND SUBSIDIARIES

Consolidated Statements Of Income

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Consolidated Balance Sheets

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Key Metrics

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Loan Composition

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Deposit Composition

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Quarterly Average Balances and Yields

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Quarterly Average Balances and Yields

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Reconciliation of Non-GAAP Financial Measures - Core Net Income

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Reconciliation of Non-GAAP Financial Measures - Core Efficiency Ratio

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