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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 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31 , 2020 OR For the transition period from Pennsylvania ( State or other jurisdiction of incorporation or organization ) PENNSYLVANIA REAL ESTATE INVESTMENT TRUST ( Exact name of Registrant as specified in its charter ) One Commerce Square 2005 Market Street , Suite 1000 Philadelphia , Pennsylvania ( Address of principal executive offices ) Commission File No. 1-6300 Title of each class Shares of Beneficial Interest , par value $ 1.00 per share Series B Preferred Shares , par value $ 0.01 per share Series C Preferred Shares , par value $ 0.01 per share Series D Preferred Shares , par value $ 0.01 per share Large accelerated filer Non - accelerated filer to 23-6216339 ( IRS Employer Identification No. ) Registrant's telephone number , including area code : ( 215 ) 875-0700 Securities Registered Pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) PEI PEIPRB PEIPRC PEIPRD 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 Act . Yes No X 19103 ( Zip Code ) Name of each exchange on which registered New York Stock Exchange New York Stock Exchange New York Stock Exchange New York Stock Exchange 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 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 if any , every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T 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 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 . Accelerated filer Smaller reporting company Emerging growth company If an emerging growth company , indicate by check mark if the registrant has elected to not 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 , as of June 30 , 2020 , of the shares of beneficial interest , par value $ 1.00 per share , of the Registrant held by non - affiliates of the Registrant was approximately $ 103.4 million . ( Aggregate market value is estimated solely for the purposes of this report and shall not be construed as an admission for the purposes of determining affiliate status . ) Indicate by check mark whether the Registrant has filed all documents and reports required to be filed by Section 12 , 13 or 15 ( d ) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court . Yes No On March 9 , 2021 , 79,270,322 shares of beneficial interest , par value $ 1.00 per share , of the Registrant were outstanding . Documents Incorporated by Reference Portions of the Registrant's definitive proxy statement to be filed with the Securities and Exchange Commission pursuant to regulation 14A relating to its 2021 Annual Meeting of Shareholders are incorporated by reference in Part III of this Form 10 - K .