Company: WBS-PG
Filing Date: 2025-09-05
Form Type: 424B5
Source: 0001193125-25-197211
Chunk: 94

Company: WEBSTER FINANCIAL CORP
Filing Date: 2025-09-05
Form: 424B5
Chunk 94
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 are affected by the modification or amendment, we may enter into supplemental indentures with the trustee for the purpose of 17

adding any provisions to or changing in any manner or eliminating any of the provisions of such indenture or of modifying in any manner the rights of the holders under debt securities issued under such indenture. However, no modification or amendment may, without the consent of the holder of each debt security affected by the modification or amendment, except as described in the prospectus supplement relating to such debt security:

| • |     | extend the stated maturity of the principal of, or any installment of interest or any additional amounts, or the 
 premium, if any, on, any debt security,                                                                          |

| • |     | reduce the principal amount of, or the rate or amount of interest on, or change the manner of calculating the                                                                                                                                     
 rate, or any premium payable on redemption of, any debt security, or reduce the amount of principal of an original issue discount security that would be due and payable upon declaration of acceleration of its maturity or would be provable in 
 bankruptcy, or adversely affect any right of repayment of the holder of any debt security,                                                                                                                                                        |

| • |     | extend the time of payment of interest on any debt security or any additional amounts, |

| • |     | change any of the conversion, exchange or redemption provisions of any debt security, |

| • |     | change the place of payment, or the coin or currency for payment, of principal, or premium, if any, including any 
 amount in respect of original issue discount or interest on any debt security,                                    |

| • |     | impair the right to institute suit for the enforcement of any payment on or with respect to any debt security or 
 for the conversion or exchange of any debt security in accordance with its terms,                                |

| • |     | release any guarantors from their guarantees of the debt securities, or, except as contemplated in any                                                       
 supplemental indenture, make any change in a guarantee of a debt security that would adversely affect the interests of the holders of those debt securities, |

| • |     | in the case of subordinated debt securities, modify the ranking or priority of the securities, |

| • |     | reduce the percentage of outstanding debt securities of any series necessary to modify or amend the applicable                                                                                                           
 indenture, to waive compliance with specific provisions of or certain defaults and consequences under the applicable indenture, or to reduce the quorum or voting requirements set forth in the applicable