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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - K ( Mark One ) 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 : 001-09305 STIFEL FINANCIAL CORP . ( Exact name of registrant as specified in its charter ) Delaware ( State or other jurisdiction of incorporation or organization ) Securities registered pursuant to Section 12 ( b ) of the Act : 501 North Broadway , St. Louis , Missouri 63102-2188 ( Address of principal executive offices and zip code ) ( 314 ) 342-2000 ( Registrant's telephone number , including area code ) Title of Each Class / Trading Symbol Common Stock , $ 0.15 par value per share ( SF ) Depository Shares , each representing 1 / 1,000th interest in a share of 6.25 % Non - Cumulative Preferred Stock , Series A ( SF - PA ) Depository Shares , each representing 1 / 1,000th interest in a share of 6.25 % Non - Cumulative Preferred Stock , Series B ( SF - PB ) Depository Shares , each representing 1 / 1,000th interest in a share of 6.125 % Non - Cumulative Preferred Stock , Series C ( SF - PC ) 43-1273600 ( I.R.S. Employer Identification No. ) Name of Each Exchange on Which Registered New York Stock Exchange New York Stock Exchange New York Stock Exchange New York Stock Exchange New York Stock Exchange Accelerated filer Non - accelerated filer Shares or principal amount outstanding - February 12 , 2021 104,973,677 5.20 % Senior Notes due 2047 ( SFB ) 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 Section 15 ( d ) of the Exchange Act . Yes No X 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 ( " the Exchange Act " ) 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 6,000 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 ( §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 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 . Large accelerated filer Smaller reporting company 6,400 9,000 $ 225,000,000 Emerging growth company ☐ If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition 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 Rule 12b - 2 of the Exchange Act ) . Yes No × The aggregate market value of the registrant's common stock , $ 0.15 par value per share , held by non - affiliates of the registrant as of the close of business on June 30 , 2020 , was $ 3.4 billion.1 1 In determining this amount , the registrant assumed that the executive officers and directors of the registrant are affiliates of the registrant . Such assumptions shall not be deemed to be conclusive for any other purposes .