Company: WBS-PG
Filing Date: 2025-09-05
Form Type: 424B5
Source: 0001193125-25-197211
Chunk: 55

Company: WEBSTER FINANCIAL CORP
Filing Date: 2025-09-05
Form: 424B5
Chunk 55
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-14 — for certain transactions determined by independent 
 qualified professional asset managers.                          |

In addition, Section 408(b)(17) of ERISA and Section 4975(d)(20) of the Code provide an exemption for transactions between an ERISA Plan and a party in interest or disqualified person, provided that the party in interest or disqualified person is not a fiduciary (or an affiliate) who has or exercises any discretionary authority S-34

or control with respect to the investment of the ERISA Plan assets involved in the transaction or renders investment advice with respect to those assets, and is a party in interest or disqualified person solely by reason of being a service provider to the ERISA Plan or having a relationship to a service provider to the ERISA Plan and provided, further that the ERISA Plan pays no more than adequate consideration in connection with the transaction (the so-called“service provider exemption”). No assurance can be made that any such exemptions will be available, or that all of the conditions of any such exemptions will be satisfied, with respect to any transaction involving the Notes. Employee benefit plans that are governmental plans (as defined in Section 3(32) of ERISA), certain church plans (as defined in Section 3(33) of ERISA) and non-U.S.plans (as described in Section 4(b)(4) of ERISA) are not subject to the requirements of ERISA or Section 4975 of the Code, but may be subject to Similar Laws. Because of the adverse consequences that may result from a Plan engaging in a direct or indirect non-exemptprohibited transactions or violation of Similar Law, Notes may not be purchased by any Plan, or any person investing the assets of any Plan, unless its purchase, holding and disposition of the Notes will not constitute or result in a non-exemptprohibited transaction under ERISA or Section 4975 of the Code or a violation of any Similar Laws. Any purchaser or holder of the Notes or any interest in the Notes, by its purchase and holding of the Notes, will be deemed to have represented that either:

| • |     | it is not, and will not be, a Plan and is not purchasing the Notes or interest in the Notes on behalf of or with 
 the assets of any Plan ; or                                                                                      |

| • |     | its purchase, holding and subsequent disposition of the Notes or interest in the Notes will not constitute or             
 result in a non-exempt prohibited transaction under ERISA or Section 4975 of the