X0203 3/A 2011-02-24 2011-03-04 0 0000911216 PALATIN TECHNOLOGIES INC PTN 0001044321 MARXE AUSTIN W & GREENHOUSE DAVID M C/O SPECIAL SITUATIONS FUNDS 527 MADISON AVENUE, SUITE 2600 NEW YORK NY 10022 0 0 1 0 Common Stock 4500000 I By Limited Partnerships Warrants A 1 2011-03-01 2016-03-01 Common Stock 391304 I By Limited Partnerships Warrants B 1 2012-03-02 2017-03-02 Common Stock 4108696 I By Limited Partnership This is a joint filing by Austin W. Marxe (Marxe) and David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Fund III QP, L.P. (SSFQP), Special Situations Cayman Fund, L.P. (Cayman), Special Situations Private Equity Fund, L.P. (PE) and Special Situations Life Sciences Fund, L.P. (LS). 1,350,000 shares of Common Stock are held by SSFQP, 450,000 shares of Common Stock are held by Cayman, 450,000 shares of Common Stock are held by PE and 2,250,000 shares of Common Stock are held by LS. The interest of Marxe and Greenhouse in the shares of Common Stock owned by SSFQP, Cayman, PE and LS is limited to the extent of his pecuniary interest. This is a joint filing by Austin W. Marxe (Marxe) and David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Fund III QP, L.P. (SSFQP), Special Situations Cayman Fund, L.P. (Cayman), Special Situations Private Equity Fund, L.P. (PE) and Special Situations Life Sciences Fund, L.P. (LS). 1,350,000 Warrants A to purchase 117,392 Common Shares are held by SSFQP, 450,000 Warrants A to purchase 39,130 Common Shares are held by Cayman, 450,000 Warrants A to purchase 39,130 Common Shares are held by SSPE and 2,250,000 Warrants A to purchase 195,652 Common Shares are held by LS. The interest of Marxe and Greenhouse in the shares of warrants owned by SSFQP, Cayman, PE and LS is limited to the extent of his pecuniary interest. This is a joint filing by Austin W. Marxe (Marxe) and David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Fund III QP, L.P. (SSFQP), Special Situations Cayman Fund, L.P. (Cayman), Special Situations Private Equity Fund, L.P. (PE) and Special Situations Life Sciences Fund, L.P. (LS). 1,350,000 Warrants B to purchase 1,232,608 Common Shares are held by SSFQP, 450,000 Warrants B to purchase 410,870 Common Shares are held by Cayman, 450,000 Warrants B to purchase 410,870 Common Shares are held by SSPE and 2,250,000 Warrants B to purchase 2,054,348 Common Shares are held by LS. The interest of Marxe and Greenhouse in the shares of warrants owned by SSFQP, Cayman, PE and LS is limited to the extent of his pecuniary interest. Footnote to the exercisable date for Warrants B: The warrants may be exercised on 3/2/12, provided that the stockholders increase the number of authorized shares of common stock. Austin W. Marxe 2011-03-11 David M. Greenhouse 2011-03-11