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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): August 21, 2025
FIRST FINANCIAL BANCORP.
(Exact name of registrant as specified in its charter)

Ohio |  | 001-34762 |  | 31-1042001
(State or other jurisdiction of incorporation or organization) |  | (Commission File Number) |  | (I.R.S. employer identification number)
255 East Fifth Street, Suite 900 |  | Cincinnati, | Ohio |  | 45202
(Address of principal executive offices) |  | (Zip Code)

Registrant's telephone number, including area code: (877) 322-9530
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Title of each class |  | Trading symbol |  | Name of exchange on which registered
Common stock, No par value |  | FFBC |  | The NASDAQ Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 7.01 Regulation FD Disclosure.
The executive officers of First Financial Bancorp. intend to use the materials filed herewith, in whole or in part, in one or more meetings with investors and analysts. A copy of the investor presentation is attached hereto as Exhibit 99.1.
First Financial Bancorp. does not intend for this Item 7.01 or Exhibit 99.1 to be treated as “filed” for purposes of the Securities Exchange Act of 1934, as amended, or incorporated by reference into its filings under the Securities Act of 1933, as amended.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits:
The following exhibits shall not be deemed to be "filed" for purposes of the Exchange Act:
Exhibit No. Description
99.1 First Financial Bancorp. Investor Presentation
104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
FIRST FINANCIAL BANCORP.

|  | By: /s/ James M. Anderson
|  | James M. Anderson
|  | Executive Vice President and Chief Financial Officer
Date: | August 21, 2025 |