Company: WBS-PG
Filing Date: 2025-09-05
Form Type: 424B5
Source: 0001193125-25-197211
Chunk: 121

Company: WEBSTER FINANCIAL CORP
Filing Date: 2025-09-05
Form: 424B5
Chunk 121
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 Penalty bids permit the underwriters to reclaim a selling concession from a dealer when the securities originally sold by the dealer are purchased in a covering transaction to cover short positions. Those activities may cause the price of the securities to be higher than it would otherwise be. If commenced, the underwriters may discontinue any of the activities at any time. The anticipated date of delivery of offered securities will be set forth in the applicable prospectus supplement relating to each offer. 39

Sales by Selling Securityholders

Selling securityholders may use this prospectus in connection with the resale of securities. The applicable prospectus supplement will identify the selling
securityholders and the terms of the securities. Selling securityholders may be deemed to be underwriters in connection with the securities they resell and any profits on the sales may be deemed to be underwriting discounts and commissions under the
Securities Act. The selling securityholders will receive all the proceeds from the sale of securities. We will not receive any proceeds from sales by selling securityholders.

40

LEGAL MATTERS

Unless otherwise specified in a prospectus supplement accompanying this prospectus, the validity of the securities offered by this prospectus will be passed
upon by Squire Patton Boggs (US) LLP, New York, New York. Any underwriters will be advised about legal matters by their own counsel, which will be named in a prospectus supplement to the extent required by law.

EXPERTS

The
consolidated financial statements of Webster Financial Corporation appearing in Webster Financial Corporation’s Annual Report on Form 10-K as of December 31, 2022 and 2021, and for each of the years
in the three-year period ended December 31, 2022, and management’s assessment of the effectiveness of internal control over financial reporting as of December 31, 2022 have been incorporated by reference herein and in the
registration statement in reliance upon the reports of KPMG LLP, independent auditor, incorporated by reference herein, and upon the authority of said firm as experts in accounting and auditing. The audit report on the effectiveness of internal
control over financial reporting as of December 31, 2022, expresses an opinion that Webster Financial Corporation did not maintain effective internal control over financial reporting as of December 31, 2022 because of the effect of a
material weaknesses on the achievement of the objectives of the control criteria and contains an explanatory paragraph that states Webster Financial Corporation did not have effective general information technology controls related to Sterling which
was acquired during 2022