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☐ 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 000-13292 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON , D.C. 20549 Title of each class Common Stock MCGRATH RENTCORP ( Exact name of registrant as specified in its Charter ) California ( State or other jurisdiction of incorporation or organization ) Non - accelerated filer 5700 Las Positas Road , Livermore , CA 94551-7800 ( Address of principal executive offices ) Registrant's telephone number : ( 925 ) 606-9200 Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) MGRC 94-2579843 ( I.R.S. Employer Identification No. ) Name of each exchange on which registered NASDAQ Global Select Market Securities registered pursuant to Section 12 ( g ) of the Act : None Yes No Indicate by check mark whether 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 Act . 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 definition of “ large accelerated filer ” , “ accelerated filer ” , “ smaller reporting company ” and “ emerging growth company " in Rule 12b - 2 of the Exchange Act . Large accelerated filer - No 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 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 . X Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Exchange Act ) . Yes > No Aggregate market value of the registrant's common stock held by non - affiliates of the registrant as of June 30 , 2020 ( based upon the closing sale price of the registrant's common stock as reported on the NASDAQ Global Select Market on June 30 , 2020 ) : $ 1,287,170,749 . As of February 22 , 2021 , 24,128,208 shares of Registrant's Common Stock were outstanding . DOCUMENTS INCORPORATED BY REFERENCE McGrath RentCorp's definitive proxy statement with respect to its 2021 Annual Meeting of Shareholders to be held on June 9 , 2021 which will be filed with the Securities and Exchange Commission within 120 days after the end of its fiscal year ended December 31 , 2020 , is incorporated by reference into Part III ( Items 10 , 11 , 12 , and 13 ) . Exhibit index appears on page 90