X0306 4 2014-11-25 0 0001327467 Celator Pharmaceuticals Inc CPXX 0001325713 Kovner Bruce C/O CAXTON CORPORATION 731 ALEXANDER ROAD, BLDG. 2 PRINCETON NJ 08540 0 0 0 1 See Remarks Section 0001388551 CAXTON CORP 731 ALEXANDER ROAD BUILDING 2 PRINCETON NJ 08540 0 0 0 1 See Remarks Section 0001576081 CDK ASSOCIATES, L.L.C. C/O CAXTON CORPORATION 731 ALEXANDER ROAD, BLDG. 2 PRINCETON NJ 08540 0 0 0 1 See Remarks Section WARRANT 3.58 2014-11-25 4 P 0 121587 0.60 A 2020-04-29 COMMON STOCK 121587 850598 I By CDK ASSOCIATES, LLC These warrants are currently exercisable. These warrants are owned directly by CDK Associates, LLC, which is a reporting person. The warrants directly owned by CDK Associates, LLC may be deemed to be indirectly beneficially owned by (i) Caxton Corporation, the manager of CDK Associates, LLC, and (ii) Bruce Kovner, the chairman and sole shareholder of Caxton Corporation. Each of Caxton Corporation and Bruce Kovner disclaims beneficial ownership of these warrants except to the extent of its or his pecuniary interest therein, and the inclusion of these warrants in this report shall not be deemed to be an admission of the beneficial ownership of all of the reported warrants for purposes of Section 16 or for any other purpose. Scott Morenstein, a director of the Issuer, is an employee of Caxton Alternative Management LP, an affiliate of Caxton Corporation. Bruce Kovner, By: /s/ Heath Weisberg, Attorney-in-Fact 2014-11-26 Caxton Corporation, By: /s/ Heath Weisberg, Chief Compliance Officer 2014-11-26 CDK Associates, LLC, By; Caxton Corporation, Manager, By: /s/ Heath Weisberg, Chief Compliance Officer 2014-11-26