Ownership History
| RA CAPITAL VENTURES LLC | $0 | 2021 | 680/2021 | 03/02/2021 |
| WILKINSON JOHN H IV & LANGSTON K | $5,000 | 2020 | 2578/2020 | 04/10/2015 |
| COOPER W KENT & CATHERINE F | $0 | 2014 | 1735/2014 | 08/27/2014 |
| COOPER W KENT & MARGARET ROBB SHOOK | $0 | 2013 | 322/2013 | 10/29/2013 |
| COOPER W KENT & MARGARET S | $0 | 0 | 0/0 | 01/01/1900 |