Company: WBS-PG
Filing Date: 2025-09-05
Form Type: 424B5
Source: 0001193125-25-197211
Chunk: 66

Company: WEBSTER FINANCIAL CORP
Filing Date: 2025-09-05
Form: 424B5
Chunk 66
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 who wish to trade the Notes prior to their date of delivery hereunder should consult their advisors. Selling Restrictions Other than in the United States, no action has been taken by us or the underwriters that would permit a public offering of the Notes offered by this prospectus supplement in any jurisdiction in which action for that purpose is required. The Notes offered by this prospectus supplement may not be offered or sold, directly or indirectly, nor may this prospectus supplement, the accompanying prospectus or any other offering material or advertisements in connection with the offer and sale of any such securities be distributed or published in any jurisdiction, except under circumstances that will result in compliance with the applicable rules and regulations of that jurisdiction. We and the underwriters require that the persons into whose possession this prospectus supplement comes inform themselves about, and observe any restrictions relating to, the offering and the distribution of this prospectus supplement. This prospectus supplement does not constitute an offer to sell or a solicitation of an offer to buy any securities offered by this prospectus supplement in any jurisdiction in which such an offer or a solicitation is unlawful. European Economic Area In relation to each member state of the European Economic Area (each a “Member State”), no offer of the Notes to the public has been or will be made in that Member State, except that offers of the Notes to the public may be made in that Member State at any time under the following exemptions under the Prospectus Regulation:

| • |     | to any legal entity which is a “qualified investor” as defined in the Prospectus Regulation; |

| • |     | to fewer than 150 natural or legal persons (other than qualified investors, as defined in the Prospectus 
 Regulation), subject to obtaining the prior consent of the underwriters for any such offer; or           |

| • |     | in any other circumstances falling within Article 1(4) of the Prospectus Regulation; |

providedthat no such offer of Notes shall require us or the underwriters to publish a prospectus pursuant to Article 3 of the Prospectus Regulation or supplement a prospectus pursuant to Article 23 of the Prospectus Regulation. For the purposes of the above provisions, the expression “an offer of Notes to the public” in relation to any Notes in any Member State means the communication in any form and by any means of sufficient information on the terms of the offer and any Notes to be offered so as to enable an investor to decide to purchase or subscribe for any Notes, and the expression “Prospectus Regulation” means Regulation