Company: WBS-PG
Filing Date: 2025-09-05
Form Type: 424B5
Source: 0001193125-25-197211
Chunk: 118

Company: WEBSTER FINANCIAL CORP
Filing Date: 2025-09-05
Form: 424B5
Chunk 118
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 material provisions of the applicable agreements. These descriptions do not restate those agreements in their entirety and do not contain all of the information that you may find useful or that may be important to you. You should refer to the provisions of the applicable agreements because they, and not the summaries, define your rights as holders of the units. We will make copies of the relevant agreements available as described under the heading “Where You Can Find More Information” above. 37

PLAN OF DISTRIBUTION Webster or the selling securityholders may sell the offered securities:

| • |     | directly to purchasers, |

| • |     | through agents, |

| • |     | through dealers, |

| • |     | through underwriters, |

| • |     | directly to its stockholders, or |

| • |     | through a combination of any of these methods of sale. |

The prospectus supplement relating to a series of the offered securities will set forth its offering terms, including the name or names of any underwriters, dealers or agents, the purchase price of the offered securities and the proceeds to Webster and/or selling securityholder from the sale, any underwriting discounts, commissions and other items constituting underwriters’ compensation, any initial public offering price and any underwriting discounts, commissions and other items allowed or reallowed or paid to dealers or agents and any securities exchanges on which the offered securities may be listed. Webster or the selling securityholders may use one or more underwriters in the sale of the offered securities, in which case the offered securities will be acquired by the underwriter or underwriters for their own account and may be resold from time to time in one or more transactions either:

| • |     | at a fixed price or prices, which may be changed, |

| • |     | at market prices prevailing at the time of sale, |

| • |     | at prices related to the prevailing market prices, or |

| • |     | at negotiated prices. |

Webster or a selling securityholder may directly solicit offers to purchase offered securities. Agents designated by Webster or a selling securityholder from time to time may also solicit offers to purchase offered securities. Any agent designated by Webster or a selling securityholder, who may be deemed to be an “underwriter” as that term is defined in the Securities Act, involved in the offer or sale of the offered securities in respect of which this prospectus is delivered will be named, and any commissions payable by Webster or a selling securityholder to such agent will be set