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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 Act . For the Fiscal Year Ended December 31 , 2020 Commission File No. 001-31720 PIPER SANDLER COMPANIES ( Exact Name of Registrant as specified in its Charter ) Delaware ( State or Other Jurisdiction of Incorporation or Organization ) 800 Nicollet Mall , Suite 900 Minneapolis , Minnesota ( Address of Principal Executive Offices ) Title of Each Class Common Stock , par value $ 0.01 ( 612 ) 303-6000 ( Registrant's Telephone Number , Including Area Code ) ( IRS Employer Identification No. ) 30-0168701 Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol PIPR 55402 ( Zip Code ) Name of Each Exchange On Which Registered The New York Stock Exchange per share Securities registered pursuant to Section 12 ( g ) of the Act : None Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Yes No 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 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 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 Accelerated filer Smaller reporting company Emerging growth company 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 ✓ Non - accelerated filer 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 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 17,366,955 shares of the Registrant's Common Stock , par value $ 0.01 per share , held by non affiliates based upon the last sale price , as reported on the New York Stock Exchange , of the Common Stock on June 30 , 2020 was approximately $ 1.0 billion . As of February 19 , 2021 , the registrant had 18,262,868 shares of Common Stock outstanding . DOCUMENTS INCORPORATED BY REFERENCE Part III of this Annual Report on Form 10 - K incorporates by reference information ( to the extent specific sections are referred to herein ) from the Registrant's Proxy Statement for its 2021 Annual Meeting of Shareholders to be held on May 21 , 2021 .