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Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - K Annual Report Pursuant to Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 For the fiscal year ended December 31 , 2020 or Transition Report Pursuant to Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number : 001-31486 Delaware ( State or other jurisdiction of incorporation or organization ) WEBSTER FINANCIAL CORPORATION ( Exact name of registrant as specified in its charter ) Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbols Title of each class Common Stock , $ 0.01 par value Depositary Shares , each representing 1 / 1000th interest in a share of 5.25 % Series F Non - Cumulative Perpetual Preferred Stock 145 Bank Street , Waterbury , Connecticut 06702 ( Address and zip code of principal executive offices ) Registrant's telephone number , including area code : ( 203 ) 578-2202 Large accelerated filer Emerging growth company X WBS WBS PrF Securities registered pursuant to Section 12 ( g ) of the Act : None □ No Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15 ( d ) of the Act . □ Yes > No Indicate by check mark whether the registrant : ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes No ( I.R.S. Employer Identification No. ) Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T ( Section 232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . > Yes □ No Accelerated filer Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company , or an emerging growth company . See the definitions of " large accelerated filer , " " accelerated filer " , " smaller reporting company " and " emerging growth company " in Rule 12b - 2 of the Exchange Act . 0 06-1187536 Name of exchange on which registered New York Stock Exchange New York Stock Exchange Non - accelerated filer 0 Smaller reporting company ■ If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transaction period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report . Indicate by check mark whether the registrant is a shell company ( as defined in Exchange Act Rule 12b - 2 ) . □ Yes > No Aggregate market value of Webster Financial Corporation's common stock held by non - affiliates was approximately $ 2.5 billion based on the June 30 , 2020 closing price on the New York Stock Exchange , the last trading day of the registrant's most recently completed second quarter . Number of shares of common stock , par value $ .01 per share , outstanding as of February 19 , 2021 was 90,289,817 . Documents Incorporated by Reference Part III : Definitive Proxy Statement ( the " Proxy Statement " ) for the Annual Meeting of Shareholders to be held on April 22 , 2021 .