Material Event (Form 8-K)

Item 8.01. Other Events.

On September 5, 2025, First Citizens BancShares, Inc. (the "Company") issued and sold $600,000,000 aggregate principal amount of its 5.600% Fixed Rate Reset Subordinated Notes due 2035 (the "Notes") in a public offering pursuant to a registration statement on Form S-3 (File No. 333-281553)(the "Registration Statement") filed with the Securities and Exchange Commission (the "Commission") on August 14, 2024, as supplemented by a prospectus supplement dated September 2, 2025 (the "Prospectus Supplement") and filed with the Commission on September 4, 2025. The Notes were sold pursuant to an underwriting agreement dated as of September 2, 2025 (the "Underwriting Agreement"), by and among the Company and BofA Securities, Inc. and Morgan Stanley & Co. LLC, as representatives of the several underwriters listed in Schedule II thereto.

The Notes were issued pursuant to a subordinated base indenture, dated as of March 4, 2020 (the "Subordinated Base Indenture"), between the Company and U.S. Bank Trust Company, National Association (the "Trustee"), as supplemented by a third supplemental indenture, dated as of September 5, 2025, between the Company and the Trustee (the "Third Supplemental Indenture").

The foregoing descriptions of the Underwriting Agreement, the Subordinated Base Indenture, the Third Supplemental Indenture, and the Notes do not purport to be complete and are qualified in their entirety by reference to Exhibit 1.1, Exhibit 4.1, Exhibit 4.2, and Exhibit 4.3, respectively. This Current Report on Form 8-K (this"Report") is being filed, in part, for the purpose of filing the documents attached as exhibits hereto as exhibits to the Registration Statement in connection with the issuance of the Notes, and such exhibits are hereby incorporated by reference into the Registration Statement.