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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - Q ( Mark One ) QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended September 30 , 2021 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 : 001-38106 PLYMOUTH INDUSTRIAL REIT , INC . ( Exact name of registrant as specified in its charter ) Maryland ( State or other jurisdiction of incorporation or organization ) 20 Custom House Street , 11th Floor , Boston , MA 02110 ( Address of principal executive offices ) 27-5466153 ( I.R.S. Employer Identification No. ) Securities registered pursuant to Section 12 ( b ) of the Act : Title of Each Class Common Stock , par value $ 0.01 per share per share Trading Symbol PLYM PLYM - PrA ( 617 ) 340-3814 ( Registrant's telephone number ) Name of Each Exchange on Which Registered New York Stock Exchange NYSE American 7.50 % Series A Cumulative Redeemable Preferred Stock , par value $ 0.01 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 ( 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 ☐ Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , 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 □ company □ Accelerated filer Non - accelerated Filer Smaller reporting company Emerging growth 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 is a shell company ( as defined in Exchange Act Rule 12b - 2 ) . Yes □ No As of November 1 , 2021 , the Registrant had outstanding 34,605,459 shares of common stock .