Company: WBS-PG
Filing Date: 2025-09-05
Form Type: 424B5
Source: 0001193125-25-197211
Chunk: 45

Company: WEBSTER FINANCIAL CORP
Filing Date: 2025-09-05
Form: 424B5
Chunk 45
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 S-27

between us and the Trustee, as initial calculation agent. Under such calculation agent agreement, if the initial calculation agent determines that guidance is needed to perform its duties or take discretionary action, or if it is required to decide between alternative courses of action, the initial calculation agent may (but is not obligated to) request written instructions from us as to the course of action or methodology to be followed. In addition, the initial calculation agent may have additional rights and indemnifications from us not described herein. Paying Agent We may appoint one or more financial institutions to act as our paying agents, at whose designated offices the Notes in non-globalform may be surrendered for payment at their maturity. We call each of those offices a paying agent. We may add, replace or terminate paying agents from time to time. We may also choose to act as our own paying agent. Initially, we have appointed the Trustee, at its principal corporate trust office at CityPlace I, 185 Asylum Street, 27th Floor, Hartford, CT 06103, as the paying agent for the Notes. We must notify you of changes in the paying agents. Governing Law The Indenture provides that the Notes will be governed by, and construed in accordance with, the laws of the State of New York. Tier 2 Capital The Notes are intended to qualify as Tier 2 capital under the capital adequacy rules established by the Federal Reserve for bank holding companies, as the same may be amended or supplemented from time to time. The rules set forth specific criteria for instruments to qualify as Tier 2 capital. Among other things, the Notes must:

| • |     | be unsecured; |

| • |     | have a minimum original maturity of at least five years; |

| • |     | be subordinated to our depositors and general creditors; |

| • |     | not contain provisions permitting the holders of the Notes to accelerate payment of principal prior to maturity                           
 except in the event of receivership, insolvency, liquidation or similar proceedings of a bank holding company or a major bank subsidiary; |

| • |     | only be callable after a minimum of five years following issuance, except upon the occurrence of a “Tax                                                                                                                             
 Event” or a “Tier 2 Capital Event” (as such terms are defined in the Indenture) or if we are required to register as an investment company pursuant to the Investment Company Act of 1940, as amended, and, in any case, subject to