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Table of Contents ( Mark One ) X ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - K TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 Title of each class Common Stock For the fiscal year ended December 31 , 2020 OR Delaware ( State or other jurisdiction of incorporation or organization ) Commission File Number 001-36751 OCUGEN , INC . ( Exact Name of Registrant as Specified in its Charter ) Large accelerated filer Non - accelerated filer 冈 263 Great Valley Parkway Malvern , Pennsylvania 19355 ( Address of principal executive offices , including zip code ) ( 484 ) 328-4701 ( Registrant's telephone number , including area code ) ( I.R.S. Employer Identification No. ) Securities registered pursuant to Section 12 ( b ) of the Act Trading symbol ( s ) OCGN 04-3522315 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 Name of each exchange on which registered 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 The Nasdaq Stock Market LLC ( The Nasdaq Capital Market ) 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 , 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 X 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 . o