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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 ☐ Transition Report Pursuant to Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 Commission File Number : 001-15369 WILLIS LEASE FINANCE CORPORATION ( Exact name of registrant as specified in its charter ) Delaware ( State or other jurisdiction of incorporation or organization ) 68-0070656 ( IRS Employer Identification No. ) 4700 Lyons Technology Parkway Coconut Creek Florida ( Address of principal executive offices ) 33073 ( Zip Code ) Title of Each Class Registrant's telephone number , including area code ( 561 ) 349-9989 Securities registered pursuant to Section 12 ( b ) of the Act : Common Stock , $ 0.01 par value per share Trading Symbol WLFC Securities registered pursuant to Section 12 ( g ) of the Act : None . Name of exchange on which registered Nasdaq Global Market Indicate by check mark if the registrant is a well - known seasoned issuer as defined in Rule 405 of the Securities Act . 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 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 □ 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 П Accelerated Filer ☑ Non - Accelerated Filer Smaller Reporting Company 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 voting stock held by non - affiliates of the registrant as of the last business day of the registrant's most recently completed second fiscal quarter ( June 30 , 2020 ) was approximately $ 76.6 million ( based on a closing sale price of $ 24.28 per share as reported on the NASDAQ Stock Market ) . The number of shares of the registrant's Common Stock outstanding as of March 10 , 2021 was 5,997,543 . DOCUMENTS INCORPORATED BY REFERENCE The Company's Proxy Statement for the 2021 Annual Meeting of Stockholders is incorporated by reference into Part III of this Form 10 - K .