Date Name Title Filing Type Shares Traded Price Total Held
Feb 13, 2012
SVP Research and Development S
SVP Research and Development S Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 63,234 $8.50 122,355
Feb 13, 2012
SVP Research and Development S
SVP Research and Development S Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 3,432 $8.50 92,177
Feb 13, 2012
SVP Research and Development S
SVP Research and Development S Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 63,234 -- 3,432
Feb 13, 2012
SVP Research and Development S
SVP Research and Development S Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 3,432 -- --
Nov 14, 2011
SVP Research and Development S
SVP Research and Development S Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 17,182 $11.64 67,532
Nov 14, 2011
SVP Research and Development S
SVP Research and Development S Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 17,182 -- --
Sep 06, 2011
SVP Research and Development S
SVP Research and Development S Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 82,818 $11.64 133,168
Sep 06, 2011
SVP Research and Development S
SVP Research and Development S Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 82,818 -- --
Apr 04, 2011
SVP Res and Dev Sciences
SVP Res and Dev Sciences Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 92,308 $13.00 142,658
Apr 04, 2011
SVP Res and Dev Sciences
SVP Res and Dev Sciences Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 92,308 -- --

* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.