Solid Biosciences Inc.

SLDB

Exchange: Nasdaq
Industry: Biological Products, (No Diagnostic Substances)
SEC CIK: 0001707502

SEC filings (opens in a new tab)

No open-market purchases or sales by Solid Biosciences Inc. insiders were filed in the last 90 days; 157 institutions reported holding it in 13F filings for Q2 2026, worth $1.14B in total; no superinvestor holds it.

Q3 2024 vs. Q2 2024

How the institutions holding Solid Biosciences Inc. changed between Q2 2024 and Q3 2024.

All holders in Q3 2024 All holders in Q2 2024

13F holders of SLDB: Q2 2024 compared with Q3 2024
Measure	Q2 2024	Of which not filed for Q3 2024	Q3 2024	Change
Holders	80	2	92	+14
Shares	37.6M	1.50M	35.8M	−250.6K (−0.7%)
Value	$213.2M	$8.50M	$249.8M	+$45.1M (+22.0%)

2 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so the changes leave them out.

New holders (27)

Institutions that held Solid Biosciences Inc. at the end of Q3 2024 but not at the end of Q2 2024.

Institutions new to SLDB in Q3 2024
Institution	Shares	Value	% of portfolio
Siren, L.L.C.	2,749,041	$19.2M	0.96%
BlackRock, Inc.	1,602,190	$11.2M	0.00%
Balyasny Asset Management LLC	236,942	$1.65M	0.00%
J. Goldman & Co LP	94,500	$658.7K	0.03%
Prudential Financial Inc	63,705	$444.0K	0.00%
FMR LLC	43,761	$305.0K	0.00%
Los Angeles Capital Management LLC	42,059	$293.2K	0.00%
AQR Capital Management LLC	37,936	$264.4K	0.00%
Sherbrooke Park Advisers LLC	34,284	$239.0K	0.05%
Quantum Private Wealth, LLC	31,533	$219.8K	0.07%
XTX Topco Ltd	17,370	$121.1K	0.01%
HSBC Holdings PLC	16,513	$114.6K	0.00%
Valence8 US LP	15,728	$109.6K	0.05%
Fox Run Management, L.L.C.	15,453	$107.7K	0.02%
Mirae Asset Global ETFs Holdings Ltd.	12,371	$86.2K	0.00%
MPM Oncology Impact Management LP	11,518	$80.3K	0.01%
Manufacturers Life Insurance Company, The	10,116	$70.5K	0.00%
Group One Trading, L.P.	8,424	$58.7K	0.00%
Steward Partners Investment Advisory, LLC	3,955	$27.6K	0.00%
CWM, LLC	1,192	$8.00K	0.00%
Sterling Capital Management LLC	67	$467	0.00%
Nisa Investment Advisors, LLC	54	$376	0.00%
Signaturefd, LLC	43	$300	0.00%
US Bancorp	27	$188	0.00%
Northwestern Mutual Wealth Management Co	25	$174	0.00%
GAMMA Investing LLC	23	$160	0.00%
Capital Performance Advisors LLP	15	$105	0.00%

Sold out (13)

Institutions that held Solid Biosciences Inc. at the end of Q2 2024 and filed for Q3 2024 without it.

Institutions that sold out of SLDB in Q3 2024
Institution	Shares, Q2 2024	Value, Q2 2024
Artal Group S.A.	2,500,000	$14.2M
Deerfield Management Company, L.P. (Series C)	1,743,398	$9.89M
Janus Henderson Group PLC	752,993	$4.33M
Acadian Asset Management LLC	67,073	$379.0K
Atom Investors LP	46,584	$264.1K
Jump Financial, LLC	41,590	$235.8K
Y-Intercept (Hong Kong) Ltd	40,430	$229.2K
Dynamic Technology Lab Private Ltd	29,262	$166.0K
Alpine Global Management, LLC	21,918	$124.3K
Ground Swell Capital, LLC	13,469	$76.4K
Bank of Montreal	12,849	$75.4K
Invesco Ltd.	10,258	$58.2K
Aquatic Capital Management LLC	400	$2.27K

Not filed for Q3 2024 yet (2)

Institutions that held Solid Biosciences Inc. at the end of Q2 2024 and haven't filed a 13F for Q3 2024. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding SLDB in Q2 2024 that haven't filed for Q3 2024
Institution	Shares, Q2 2024	Value, Q2 2024
BlackRock Inc.	1,483,262	$8.41M
Susquehanna Fundamental Investments, LLC	16,200	$91.9K