X0202 4/A 2007-12-12 2007-12-13 0 0000716646 CLINICAL DATA INC CLDA 0001109753 BELBEL CAESAR J C/O CLINICAL DATA, INC. ONE GATEWAY CENTER, SUITE 702 NEWTON MA 02458 0 1 0 0 EVP, Chief Legal Officer Common Stock 2007-12-12 4 M 0 2500 3.21 A 2500 D Common Stock 2007-12-12 4 S 0 2500 22.80 D 0 D Common Stock 2007-12-12 4 M 0 1741 3.21 A 1741 D Common Stock 2007-12-12 4 S 0 1741 23.50 D 0 D Common Stock 2007-12-13 4 M 0 200 3.21 A 200 D Common Stock 2007-12-13 4 S 0 200 22.04 D 0 D Common Stock 2007-12-13 4 M 0 50 3.21 A 50 D Common Stock 2007-12-13 4 S 0 50 22.19 D 0 D Common Stock 2007-12-13 4 M 0 1200 3.21 A 1200 D Common Stock 2007-12-13 4 S 0 1200 22.1858 D 0 D Common Stock 2007-12-13 4 M 0 601 3.21 A 601 D Common Stock 2007-12-13 4 S 0 601 22.5573 D 0 D Common Stock 2007-12-13 4 M 0 1250 3.21 A 1250 D Common Stock 2007-12-13 4 S 0 1250 22.02 D 0 D Common Stock 2007-12-13 4 M 0 639 3.21 A 639 D Common Stock 2007-12-13 4 S 0 639 22.18 D 0 D Common Stock 2007-12-13 4 M 0 10 3.21 A 10 D Common Stock 2007-12-13 4 S 0 10 22.24 D 0 D Stock Option (Right to Buy) 3.21 2007-12-12 4 M 0 4241 0.00 D 2013-05-07 Common Stock 4241 7009 D Stock Option (Right to Buy) 3.21 2007-12-13 4 M 0 3950 0.00 D 2013-05-07 Common Stock 3950 3059 D Exercisable as to 7,500 shares on May 7, 2004, as to an additional 7,500 shares on May 7, 2005, and as to the remaining 7,500 shares on May 7, 2006 (as adjusted in accordance with the Company's 3-for-2 stock split, effective October 1, 2007). /s/ Caesar J. Belbel 2007-12-13