Company: WBS-PG
Filing Date: 2025-09-05
Form Type: 424B5
Source: 0001193125-25-197211
Chunk: 91

Company: WEBSTER FINANCIAL CORP
Filing Date: 2025-09-05
Form: 424B5
Chunk 91
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| • |     | incurring or becoming liable on any secured or unsecured senior indebtedness or general obligations; or |

| • |     | paying dividends or making other distributions on our capital stock; or |

| • |     | purchasing or redeeming our capital stock; or |

| • |     | creating any liens on our property for any purpose. |

Events of Default, Waiver and Notice Events of Default. The events of default with respect to any series of debt securities issued under it, subject to any modifications or deletions provided in any supplemental indenture with respect to any specific series of debt securities, include the following events: failure to pay any installment of interest or any additional amounts payable on any debt security of the series for 30 days;

| • |     | failure to pay principal of, or premium, if any, on, any debt security of the series when due, whether at 
 maturity, upon redemption, by declaration or acceleration of maturity or otherwise;                       |

| • |     | default in making any sinking fund payment when due, for any debt security of the series; |

| • |     | default in the performance or breach of any other covenant or warranty of Webster contained in the applicable                                                                                                                          
 indenture, other than a covenant added to the indenture solely for the benefit of any other series of debt securities issued under that indenture, continued for 90 days after written notice as provided in the applicable indenture; |

| • |     | specific events of bankruptcy, insolvency or reorganization, or court appointment of a receiver, liquidator or 
 trustee of Webster or any significant subsidiary or either of their property; and                              |

| • |     | any other event of default provided with respect to a particular series of debt securities. |

If an event of default under any indenture with respect to debt securities of any series at the time outstanding occurs and is continuing, then in every case other than in the case described in the fifth bullet above, in which case acceleration will be automatic, the applicable trustee or the holders of not less than 25% of the principal amount of the outstanding debt securities of that series will have the right to declare the principal amount, or, if the debt securities of that series are original issue discount securities or indexed securities, the portion of the principal amount as may be specified in the terms of that series, of all the debt securities of that series to be due and payable immediately by written notice to us, and to the applicable trustee if given by the