Company: FCNCB
Filing Date: 2025-03-06
Form Type: 424B5
Source: 0001193125-25-047965
Chunk: 35

Company: FIRST CITIZENS BANCSHARES INC /DE/
Filing Date: 2025-03-06
Form: 424B5
Chunk 35
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ations may
adversely affect the value of and return on the senior notes. Because the Benchmark Replacement is uncertain, we or our designee (in consultation with us) are likely to exercise more discretion in respect of calculating interest payable on the
senior notes during the senior notes floating rate period than would be the case in the absence of a Benchmark Transition Event and related Benchmark Replacement Date. Neither they nor we will have any obligation to consider your interests as a
holder of the senior notes in taking any action that might affect the value of the senior notes.

The application of a Benchmark
Replacement and Benchmark Replacement Adjustment, and any implementation of Benchmark Replacement Conforming Changes, could result in adverse consequences to the amount of interest payable on the senior notes, which could adversely affect the return
on, value of and market for such notes. Further, there is no assurance that the characteristics of any Benchmark Replacement will be similar to the then-current Benchmark that it is replacing, or that any Benchmark Replacement will produce the
economic equivalent of the then-current Benchmark that it is replacing.

S-20

CAPITALIZATION The following table sets forth our consolidated cash and due from banks and consolidated capitalization as of December 31, 2024, on an actual basis and on an adjusted basis giving effect to the issuance and sale of the notes offered by this prospectus supplement and the use of the net proceeds from the sale of the notes as described under “Use of Proceeds” in this prospectus supplement, after deducting the underwriting discounts and our estimated offering fees and expenses. You should read the following table together with “Use of Proceeds” and “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations” and our consolidated financial statements and notes thereto included in our Annual Report on Form 10-Kfor the year ended December 31, 2024, which is incorporated by reference in this prospectus supplement and the accompanying prospectus.

|                                                                                     | (dollar amounts in millions, except share data) |   | December 31, 2024 
          (actual) |   |     |   | December 31, 2024 
        (adjusted) |   |
|:------------------------------------------------------------------------------------|:------------------------------------------------|:--|------------------:|:--|:----|:--|------------------:|:--|
| Cash and due from banks                                                             |                                                 | $ |               814 |   |     | $ |                   |   |
| Liabilities                                                                         |                                                 |