Date Filer Title Filing Type Shares Traded Price Total Held
Jun 13, 2023
Mamuszka Hannah
Director
Trans History: 9
 Director Form 4 Open market or private purchase of non-derivative or derivative security 65,789 $0.76 65,789
Feb 15, 2024
Holmlin R. Erik
Director, PRESIDENT AND CEO
Trans History: 29
 Director, PRESIDENT AND CEO Form 4 Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3 3,073 $1.27 77,663
May 04, 2020
Linney Yvonne
Director
Trans History: 11
 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 80,923 -- 80,923
May 04, 2020
Mamuszka Hannah
Director
Trans History: 9
 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 80,923 -- 80,923
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
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
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
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
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
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

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