Company: FCNCB
Filing Date: 2025-09-04
Form Type: 424B5
Source: 0001193125-25-195116
Chunk: 20

Company: FIRST CITIZENS BANCSHARES INC /DE/
Filing Date: 2025-09-04
Form: 424B5
Chunk 20
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 an interest rate that would otherwise compensate you for any lost value as a result of any redemption of the Notes.

The interest rate on the Notes will reset on the Reset Date and may result in an interest rate that is less than the initial fixed annual rate of 5.600% in effect until the Reset Date.

The interest rate on the Notes on and after the Reset Date will equal the Five-year U.S. Treasury
Rate as of the Reset Determination Date, plus 185 basis points per annum. Therefore, the interest rate on the Notes on and after the Reset Date could be more or less than the initial fixed rate of 5.600% per annum. We have no control over the
factors that may affect U.S. Treasury rates, including geopolitical conditions and economic, financial, political, regulatory, judicial or other events that may impact U.S. Treasury rates.

The historical Five-year U.S. Treasury Rates are not an indication of future Five-year U.S. Treasury Rates.

In the past, U.S. Treasury rates have experienced significant fluctuations. You should note that historical levels, fluctuations and trends of
U.S. Treasury rates are not necessarily indicative of future levels. Any historical upward or downward trend in U.S. Treasury rates is not an indication that U.S. Treasury rates are more or less likely to increase or decrease at any time, and you
should not take the historical U.S. Treasury rates as an indication of future rates.

Holders of the Notes could be at greater risk for being structurally subordinated if we sell or convey all or substantially all of our assets to one or more of our majority-owned subsidiaries.

If we sell or convey all or substantially all of our assets to one or more of our direct or indirect majority-owned subsidiaries, under the
Subordinated Indenture, such subsidiary or subsidiaries will not be required to assume our obligations under the Notes, and we will remain the sole obligor on the Notes. In such event, creditors of any such subsidiary or subsidiaries would have
additional assets from which to recover on their claims while holders of the Notes would be structurally subordinated to creditors of such subsidiary or subsidiaries with respect to such assets. See “Description of Notes—Consolidation,
Merger and Sale of Assets” in this prospectus supplement.

S-10

CAPITALIZATION The following table sets forth our consolidated cash and due from banks and consolidated capitalization as of June 30, 2025, on an actual basis and on an adjusted basis giving effect to the issuance