Company: FCNCB
Filing Date: 2025-11-14
Form Type: 424B5
Source: 0001193125-25-283229
Chunk: 23

Company: FIRST CITIZENS BANCSHARES INC /DE/
Filing Date: 2025-11-14
Form: 424B5
Chunk 23
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 for us and our securities,
including the Series D Preferred Stock and depositary shares, based on their overall view of our industry. A downgrade or withdrawal, or the announcement of a possible downgrade or withdrawal, of the ratings assigned to the depositary shares, the
Series D Preferred Stock, us, or our other securities, or any perceived decrease in our creditworthiness could cause the trading price of the depositary shares to decline significantly.

The rating agencies that currently or may in the future publish a rating for us, the depositary shares, or the Series D Preferred Stock may
from time to time in the future change the methodologies that they use for analyzing securities with features similar to the depositary shares or the Series D Preferred Stock. This may include, for example, changes to the relationship between
ratings assigned to an issuer’s senior securities and ratings assigned to securities with features similar to the depositary shares or the Series D Preferred Stock, which is sometimes called “notching.” If the rating agencies
change their practices for rating these securities in the future, and the ratings of the depositary shares or Series D Preferred Stock are subsequently lowered or “notched” further, the trading price of the depositary shares could be
negatively affected.

S-12

CAPITALIZATION The following table sets forth our consolidated cash and due from banks and consolidated capitalization as of September 30, 2025, on an actual basis and on an adjusted basis giving effect to the issuance and sale of the Series D Preferred Stock offered by this prospectus supplement and the use of the net proceeds from the sale of the Series D Preferred Stock as described under “Use of Proceeds” in this prospectus supplement, after deducting the underwriting discount and our estimated offering fees and expenses. You should read the following table together with “Use of Proceeds” in this prospectus supplement and “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 and our Quarterly Reports on Form 10-Qfor the periods ended March 31, 2025, June 30, 2025 and September 30, 2025, each of which is incorporated by reference in this prospectus supplement and the accompanying prospectus.

|                                                                                        | (dollar amounts in millions, except number of shares) |   | September 30, 
          2025 
      (actual) |   |