Date Name Title Filing Type Shares Traded Price Total Held
Dec 30, 2020
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 158,079 -- --
Jul 27, 2020
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Bona fide gift 57,465 -- --
Mar 11, 2020
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Other acquisition or disposition -- -- 57,465
Mar 11, 2020
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Other acquisition or disposition -- -- 500,000
Mar 11, 2020
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Other acquisition or disposition -- -- 5,791
Mar 09, 2020
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 96,736 -- 150,000
Mar 09, 2020
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 150,000 -- --
Feb 25, 2020
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Other acquisition or disposition -- -- 5,791
Feb 25, 2020
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Other acquisition or disposition -- -- 57,465
Feb 25, 2020
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Other acquisition or disposition -- -- 500,000

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