Date Filer Title Filing Type Shares Traded Price Total Held
Sep 18, 2023
Chaubey Alka
Chief Medical Officer
Trans History: 12
 Chief Medical Officer Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 20,000 -- 144,794
Feb 15, 2023
Chaubey Alka
Chief Medical Officer
Trans History: 12
 Chief Medical Officer Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 120,000 -- 124,794
May 13, 2022
Stewart Christopher P.
Chief Financial Officer
Trans History: 14
 Chief Financial Officer Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 60,000 $0.56 121,579
Feb 18, 2020
Borodkin Mark
Chief Operating Officer
Trans History: 19
 Chief Operating Officer Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 120,000 -- 120,000
Feb 18, 2020
Robinson Warren
Chief Commercial Officer
Trans History: 5
 Chief Commercial Officer Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 120,000 -- 120,000
May 13, 2022
Stewart Christopher P.
Chief Financial Officer
Trans History: 14
 Chief Financial Officer Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 60,000 -- 117,500
Aug 23, 2018
Cao Han PHD
Chief Scientific Officer
Trans History: 21
 Chief Scientific Officer Form 4 Conversion of derivative security 2,433 -- 112,936
Aug 23, 2018
Cao Han PHD
Chief Scientific Officer
Trans History: 21
 Chief Scientific Officer Form 4 Conversion of derivative security 101,918 -- 110,503
Sep 18, 2023
Kama Gulsen
Chief Financial Officer
Trans History: 2
 Chief Financial Officer Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 106,000 -- 106,000
Feb 18, 2020
Adams Heather
Chief Administrative Officer
Trans History: 6
 Chief Administrative Officer Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 100,000 -- 100,000

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