Date Name Title Filing Type Shares Traded Price Total Held
Dec 31, 2020
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Other acquisition or disposition -- -- 376,861
Dec 31, 2020
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 620,270 -- 620,270
Jan 12, 2021
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Bona fide gift 82,108 -- 82,108
Apr 15, 2021
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Bona fide gift 14,000 -- 14,000
Apr 15, 2021
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Bona fide gift 14,000 -- --
Apr 15, 2021
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Bona fide gift 5,383 -- --
Apr 15, 2021
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Bona fide gift 5,383 -- 5,383
Jun 21, 2021
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Open market or private sale of non-derivative or derivative security 738 $532.89 81,370
Jun 21, 2021
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Open market or private sale of non-derivative or derivative security 7,494 $533.66 73,876
Jun 21, 2021
Director, President and Chief Scientific
Director, President and Chief Scientific Form 4 Open market or private sale of non-derivative or derivative security 8,236 $534.48 65,640

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