X0303 4 2008-06-20 0 0000716646 CLINICAL DATA INC CLDA 0001091823 KIRK RANDAL J 1881 GROVE AVENUE RADFORD VA 24141 1 0 1 0 Common Stock 1620946 D Common Stock 230029 I by Radford Common Stock 62578 I by Zhong Mei Common Stock 1096624 I by RJK Common Stock 1020756 I by Kirkfield Common Stock 692617 I by Staff LLC Common Stock 1049877 I by NRM II Common Stock 290014 I by NRM III Common Stock 2008-06-20 4 P 0 5985 16.49 A 3380985 I by NRM V Randal J. Kirk controls each of new River Management III, LP ("NRM III"), Third Security Staff 2001 LLC ("Staff 2001"), Radford Investments Limited Partnership ("Radford"), Kirkfield, L.L.C. ("Kirkfield"), RJK, L.L.C. ("RJK"), Zhong Mei, L.L.C. ("Zhong Mei"), New River Management II, LP ("NRM II") and New River Management V, LP ("NRM V"). Shares held by these entities may be deemed to be indirectly beneficially owned (as defined under Rule 13d-3 promulgated under the Securities Exchange Act of 1934, as amended) by Mr. Kirk. /s/ Randal J. Kirk 2008-06-23