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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 For the fiscal year ended June 30 , 2021 Delaware ( State or other jurisdiction of incorporation or organization ) TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from or 4B Cedar Brook Drive Cranbury , New Jersey ( Address of principal executive offices ) to Title of Each Class Common Stock , par value $ .01 per share Commission file number : 001-15543 PALATIN TECHNOLOGIES , INC . ( Exact name of registrant as specified in its charter ) PALATIN ( 609 ) 495-2200 ( Registrant's telephone number , including area code ) Securities registered pursuant to Section 12 ( b ) of the Act : 95-4078884 ( I.R.S. Employer Identification No. ) 08512 ( Zip Code ) Name of Each Exchange on Which Registered NYSE American Trading Symbol PTN 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 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 during the preceding 12 months ( or for such shorter period that the registrant was required to submit ) . 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 , ' " 2