Company: WBS-PG
Filing Date: 2025-09-05
Form Type: 424B5
Source: 0001193125-25-197211
Chunk: 80

Company: WEBSTER FINANCIAL CORP
Filing Date: 2025-09-05
Form: 424B5
Chunk 80
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 indentures. We are not required to issue all of the debt securities of one series at the same time and, unless otherwise provided in the applicable indenture or supplemental indenture and described in the applicable prospectus supplement, we may, from time to time, reopen any series and issue additional debt securities under that series without the consent of the holders of the outstanding debt securities of that series. Additional notes issued in this manner will have the same terms and conditions as the outstanding debt securities of that series, except for their original issue date and issue price, and will be consolidated with, and form a single series with, the previously outstanding debt securities of that series. Terms of Debt Securities to be Included in the Prospectus Supplement The prospectus supplement relating to any series of debt securities that we may offer will set forth the price or prices at which the debt securities will be offered, and will contain the specific terms of the debt securities of that series. These terms may include, without limitation, the following:

| • |     | the title of the debt securities and whether they are senior debt securities or subordinated debt securities; |

| • |     | the amount of debt securities issued and any limit on the amount that may be issued; |

| • |     | the price(s) (expressed as a percentage of the principal amount) at which the debt securities will be issued; |

| • |     | if other than the principal amount of those debt securities, the portion of the principal amount payable upon 
 declaration of acceleration of the maturity of those debt securities;                                         |

| • |     | the maturity date or dates, or the method for determining the maturity date or dates, on which the principal of 
 the debt securities will be payable and any rights of extension;                                                |

| • |     | the rate or rates, which may be fixed or variable, or the method of determining the rate or rates at which the 
 debt securities will bear interest, if any;                                                                    |

| • |     | the date or dates from which any interest will accrue and the date or dates on which any interest will be          
 payable, the regular related record dates and whether we may elect to extend or defer such interest payment dates; |

| • |     | the place or places where payments will be payable, where the debt securities may be surrendered for registration 
 of transfer or exchange and where notices or demands to or upon us may be served;                                 |

| • |     | the period or periods within which, the price or prices at which and