Company: WBS-PG
Filing Date: 2025-09-05
Form Type: 424B5
Source: 0001193125-25-197211
Chunk: 35

Company: WEBSTER FINANCIAL CORP
Filing Date: 2025-09-05
Form: 424B5
Chunk 35
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 on or after the original issue date of the Notes, there is more than an insubstantial risk that interest payable by us on the Notes is not, or, within 90 days of the date of such opinion, will not be, 
 deductible by us, in whole or in part, for United States federal income tax purposes;                                                                                                                                                                    |

| • |     | a “Tier 2 Capital Event,” defined in the Indenture to mean our good faith determination that, as a                                                                                                                                                 
 result of (a) any amendment to, or change in, the laws, rules or regulations of the United States (including, for the avoidance of doubt, any agency or instrumentality of the United States, including the Federal Reserve and other federal bank 
 regulatory agencies) or any political subdivision of or in the United States that is enacted or becomes effective after the original issue date of the Notes; (b) any proposed change in those laws, rules or regulations that is announced or     
 becomes effective after the original issue date of the Notes; or (c) any official administrative decision or judicial decision or administrative action or other official pronouncement interpreting or applying those laws, rules, regulations,   
 policies or guidelines with respect thereto that is announced after the original issue date of the Notes, there is more than an insubstantial risk that we will not be entitled to treat the Notes then outstanding as “Tier 2 Capital” (or        
 its equivalent) for purposes of the capital adequacy rules or regulations of the Federal Reserve (or, as and if applicable, the capital adequacy rules or regulations of any successor appropriate federal banking agency) as then in effect and   
 applicable to us, for so long as any Notes are outstanding; or                                                                                                                                                                                     |

| • |     | Webster becoming required to register as an investment company pursuant to the Investment Company Act of 1940, as 
 amended.                                                                                                          |

In the event of any redemption of the Notes, we will deliver or cause to be delivered a notice of redemption (which notice may be conditional in our discretion on one or more conditions precedent, and the redemption date may be delayed until such time as any or all of such conditions have been satisfied or revoked by us if we determine that such conditions will not be satisfied) to each holder of Notes not less than 5 nor more than 60 days prior to the redemption date. Any partial redemption will be made in accordance with DTC’s applicable procedures among all of the holders of the Notes. If any Note is to be redeemed in part only