| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| David D. Chang, M.D., Ph.D. | 5.1% | 10,905,003 | 7,991,807 | 2,913,196 | /s/ David D. Chang | David D. Chang, M.D., Ph.D. | |
| Chang 2006 Family Trust | 0.6% | 1,201,108 | 0 | 1,201,108 | /s/ David D. Chang | By David D. Chang, M.D., Ph.D., Co-Trustee | |
| JEC 2019 Trust | 0.4% | 856,044 | 0 | 856,044 | /s/ David D. Chang | By David D. Chang, M.D., Ph.D., Co-Trustee | |
| RTC 2019 Trust | 0.4% | 856,044 | 856,044 | /s/ David D. Chang | By David D. Chang, M.D., Ph.D., Co-Trustee |