CHARLESTOWN, MA
SOLID BIOSCIENCES INC.SLDB— Latest position per institution from SEC 13F filings
15
Institutional holders
106.06M
Total shares held
970.22M
Estimated value
5.30M
Avg. position size
RA CAPITAL MANAGEMENT, L.P.
CIK 1346824
Shares
12.04M
Value
120.24M
Filed
Jun 30, 2026
PERCEPTIVE ADVISORS LLC
CIK 1224962
Shares
11.91M
Value
118.95M
Filed
Jun 30, 2026
BAIN CAPITAL LIFE SCIENCES INVESTORS, LLC
CIK 1703031
Shares
9.81M
Value
97.99M
Filed
Jun 30, 2026
SIREN, L.L.C.
CIK 2005245
Shares
7.69M
Value
76.83M
Filed
Jun 30, 2026
BLACKROCK, INC.
CIK 2012383
Shares
6.93M
Value
69.27M
Filed
Jun 30, 2026
FMR LLC
CIK 315066
Shares
6.88M
Value
68.69M
Filed
Jun 30, 2026
COMMODORE CAPITAL LP
CIK 1831942
Shares
5.83M
Value
21.55M
Filed
Mar 31, 2025
ARMISTICE CAPITAL, LLC
CIK 1601086
Shares
4.28M
Value
42.74M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
4.18M
Value
41.71M
Filed
Jun 30, 2026
JUPITER TOPCO LLC
CIK 2146052
Shares
4.04M
Value
40.38M
Filed
Jun 30, 2026
JANUS HENDERSON GROUP LTD.
CIK 1274173
Shares
4.01M
Value
28.88M
Filed
Mar 31, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
4.01M
Value
40.06M
Filed
Jun 30, 2026
RTW INVESTMENTS, LP
CIK 1493215
Shares
3.89M
Value
38.89M
Filed
Jun 30, 2026
DEEP TRACK CAPITAL, LP
CIK 1856083
Shares
3.57M
Value
35.61M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
3.45M
Value
19.49M
Filed
Dec 31, 2025
FRANKLIN TEMPLETON INC
CIK 38777
Shares
3.44M
Value
34.37M
Filed
Jun 30, 2026
CITADEL ADVISORS LLC
CIK 1423053
Shares
2.85M
Value
28.43M
Filed
Jun 30, 2026
ARTAL GROUP S.A.
CIK 1053906
Shares
2.50M
Value
14.18M
Filed
Jun 30, 2024
VENROCK ADVISER, LLC
CIK 1615982
Shares
2.48M
Value
9.18M
Filed
Mar 31, 2025
ALYESKA INVESTMENT GROUP, L.P.
CIK 1453072
Shares
2.28M
Value
22.78M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | RA CAPITAL MANAGEMENT, L.P. | 1346824 | 12.04M | 120.24M | Jun 30, 2026 |
| 2 | PERCEPTIVE ADVISORS LLC | 1224962 | 11.91M | 118.95M | Jun 30, 2026 |
| 3 | BAIN CAPITAL LIFE SCIENCES INVESTORS, LLC | 1703031 | 9.81M | 97.99M | Jun 30, 2026 |
| 4 | SIREN, L.L.C. | 2005245 | 7.69M | 76.83M | Jun 30, 2026 |
| 5 | BLACKROCK, INC. | 2012383 | 6.93M | 69.27M | Jun 30, 2026 |
| 6 | FMR LLC | 315066 | 6.88M | 68.69M | Jun 30, 2026 |
| 7 | COMMODORE CAPITAL LP | 1831942 | 5.83M | 21.55M | Mar 31, 2025 |
| 8 | ARMISTICE CAPITAL, LLC | 1601086 | 4.28M | 42.74M | Jun 30, 2026 |
| 9 | STATE STREET CORP | 93751 | 4.18M | 41.71M | Jun 30, 2026 |
| 10 | JUPITER TOPCO LLC | 2146052 | 4.04M | 40.38M | Jun 30, 2026 |
| 11 | JANUS HENDERSON GROUP LTD. | 1274173 | 4.01M | 28.88M | Mar 31, 2026 |
| 12 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 4.01M | 40.06M | Jun 30, 2026 |
| 13 | RTW INVESTMENTS, LP | 1493215 | 3.89M | 38.89M | Jun 30, 2026 |
| 14 | DEEP TRACK CAPITAL, LP | 1856083 | 3.57M | 35.61M | Jun 30, 2026 |
| 15 | VANGUARD GROUP INC | 102909 | 3.45M | 19.49M | Dec 31, 2025 |
| 16 | FRANKLIN TEMPLETON INC | 38777 | 3.44M | 34.37M | Jun 30, 2026 |
| 17 | CITADEL ADVISORS LLC | 1423053 | 2.85M | 28.43M | Jun 30, 2026 |
| 18 | ARTAL GROUP S.A. | 1053906 | 2.50M | 14.18M | Jun 30, 2024 |
| 19 | VENROCK ADVISER, LLC | 1615982 | 2.48M | 9.18M | Mar 31, 2025 |
| 20 | ALYESKA INVESTMENT GROUP, L.P. | 1453072 | 2.28M | 22.78M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.