| 1 | RA CAPITAL MANAGEMENT L.P.
Kolchinsky Peter
Shah Rajeev M.
10% Owner | 2025-05-15 16:56:02 | 9,714,392
0 | 9,714,392 | Form 13G |
| 2 | Atlas Venture Fund XI L.P.
Atlas Venture Associates XI L.P.
Atlas Venture Associates XI LLC
Atlas Venture Opportunity Fund I L.P.
Atlas Venture Associates Opportunity I L.P.
Atlas Venture Associates Opportunity I LLC
Atlas Venture Opportunity Fund II L.P.
Atlas Venture Associates Opportunity II LP
Atlas Venture Associates Opportunity II LLC
10% Owner | 2024-11-14 16:32:40 | 5,714,057
0 | 5,714,057 | Form 13G |
| 3 | Forbion Capital Fund IV Cooperatief U.A.
10% Owner | 2025-05-15 08:46:56 | 5,400,545
0 | 5,400,545 | Form 13G |
| 4 | MPM BIOVENTURES 2018 L.P.
MPM BIOVENTURES 2018 (B) L.P.
MPM ASSET MANAGEMENT INVESTORS BV2018 LLC
MPM BioVentures 2018 GP LLC
MPM BioVentures 2018 LLC
EVNIN LUKE
Foley Todd
GADICKE ANSBERT
10% Owner | 2024-02-12 16:06:32 | 3,451,303
0 | 3,451,303 | Form 13G |
| 5 | Atlas Venture Opportunity Fund I L.P.
Atlas Venture Associates Opportunity I L.P.
Atlas Venture Associates Opportunity I LLC
Atlas Venture Opportunity Fund II L.P.
Atlas Venture Associates Opportunity II LP
Atlas Venture Associates Opportunity II LLC
10% Owner | 2024-03-05 17:07:00 | 1,458,691
847,388 | 2,306,079 | Form 4 |
| 6 | VV Manager II LLC
Vida Ventures II LLC
VIDA VENTURES II-A LLC
10% Owner | 2023-02-10 16:31:31 | 2,220,034
0 | 2,220,034 | Form 13D |
| 7 | Logos Global Management LP
10% Owner | 2023-02-14 15:53:47 | 2,150,000
0 | 2,150,000 | Form 13G |
| 8 | Wellington Biomedical Innovation Master Investors (Cayman) I L.P.
10% Owner | 2020-09-23 18:56:45 | 1,608,785
0 | 1,608,785 | Form 4 |
| 9 | Brumm Joshua T
CEO & President | 2024-03-12 21:56:20 | 754,536
0 | 754,536 | Form 4 |
| 10 | Subramanian Romesh
Chief Scientific Officer
10% Owner | 2020-09-18 17:12:38 | 694,434
0 | 694,434 | Form 4 |
| 11 | CureDuchenne Ventures LLC
10% Owner | 2020-09-23 19:05:52 | 602,972
0 | 602,972 | Form 4 |
| 12 | Lucera Erick
Chief Financial Officer | 2025-04-01 16:33:30 | 280,600
0 | 280,600 | Form 4 |
| 13 | Beskrovnaya Oxana
Chief Scientific Officer | 2025-03-13 16:08:14 | 195,840
0 | 195,840 | Form 4 |
| 14 | Cox John
CEO & President | 2025-06-06 16:07:07 | 142,179
32,000 | 174,179 | Form 4 |
| 15 | Farwell Wildon
Chief Medical Officer | 2024-08-20 16:27:16 | 143,222
0 | 143,222 | Form 4 |
| 16 | McNeill Jonathan
Chief Business Officer | 2024-08-20 16:27:39 | 132,106
0 | 132,106 | Form 4 |
| 17 | HIGH SUSANNA GATTI
Chief Operating Officer | 2024-09-19 16:52:28 | 131,636
0 | 131,636 | Form 4 |
| 18 | Scalzo Richard William
SVP, Head of Finance & Admin. | 2025-03-13 16:08:57 | 122,330
0 | 122,330 | Form 4 |
| 19 | Friedl-Naderer Johanna
Chief Commercial Officer | 2025-06-06 16:03:04 | 95,911
0 | 95,911 | Form 4 |
| 20 | Kerr Douglas
Chief Medical Officer | 2025-06-06 16:05:18 | 92,815
0 | 92,815 | Form 4 |
| 21 | Stehman-Breen Catherine
Director | 2025-06-03 21:37:20 | 35,000
0 | 35,000 | Form 4 |
| 22 | Incerti Carlo
Director | 2025-06-03 21:38:05 | 35,000
0 | 35,000 | Form 4 |
| 23 | Kersten Dirk
Director | 2025-06-03 21:38:43 | 35,000
0 | 35,000 | Form 4 |
| 24 | Rhodes Jason P
Director | 2025-06-03 21:39:24 | 35,000
0 | 35,000 | Form 4 |
| 25 | Lubner David Charles
Director | 2025-06-03 21:40:35 | 35,000
0 | 35,000 | Form 4 |
| 26 | HURWITZ EDWARD
Director | 2025-06-03 21:41:10 | 35,000
0 | 35,000 | Form 4 |
| 27 | Klein Lawrence Otto
Director | 2022-07-06 18:20:16 | 7,222
0 | 7,222 | Form 4 |