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.

Q1 2025 vs. Q4 2024

How the institutions holding Solid Biosciences Inc. changed between Q4 2024 and Q1 2025.

All holders in Q1 2025 All holders in Q4 2024

13F holders of SLDB: Q4 2024 compared with Q1 2025
Measure	Q4 2024	Of which not filed for Q1 2025	Q1 2025	Change
Holders	90	1	125	+36
Shares	36.3M	197.9K	79.2M	+43.1M (+119.2%)
Value	$145.3M	$791.7K	$293.2M	+$148.7M (+102.9%)

1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (51)

Institutions that held Solid Biosciences Inc. at the end of Q1 2025 but not at the end of Q4 2024.

Institutions new to SLDB in Q1 2025
Institution	Shares	Value	% of portfolio
Commodore Capital LP	5,825,000	$21.6M	1.59%
VR Adviser, LLC	2,481,400	$9.18M	0.78%
MPM Oncology Impact Management LP	1,642,356	$6.08M	1.04%
Franklin Resources Inc	1,240,700	$4.59M	0.00%
Boxer Capital Management, LLC	1,240,700	$4.59M	1.38%
Casdin Capital, LLC	775,000	$2.87M	0.23%
EcoR1 Capital, LLC	744,450	$2.75M	0.16%
Woodline Partners LP	631,823	$2.34M	0.02%
Balyasny Asset Management LLC	627,274	$2.32M	0.01%
Silverarc Capital Management, LLC	452,239	$1.67M	0.35%
Schroder Investment Management Group	355,700	$1.54M	0.00%
Nantahala Capital Management, LLC	281,368	$1.04M	0.09%
Ikarian Capital, LLC	230,000	$851.0K	0.28%
Point72 Asset Management, L.P.	201,419	$745.3K	0.00%
StemPoint Capital LP	198,150	$733.2K	0.23%
Resolute Capital Asset Partners LLC	150,000	$555.0K	0.31%
Susquehanna Fundamental Investments, LLC	141,552	$523.7K	0.01%
Knott David M Jr	132,000	$488.4K	0.23%
Birchview Capital, LP	128,768	$476.4K	0.41%
AQR Capital Management LLC	113,099	$418.5K	0.00%
Apis Capital Advisors, LLC	110,000	$407.0K	0.20%
Squarepoint Ops LLC	105,682	$391.0K	0.00%
Logos Global Management LP	100,000	$370.0K	0.07%
Jump Financial, LLC	76,318	$282.4K	0.00%
Boothbay Fund Management, LLC	69,874	$258.5K	0.01%
Nuveen, LLC	43,579	$161.2K	0.00%
Atom Investors LP	40,987	$151.7K	0.02%
XTX Topco Ltd	40,930	$151.4K	0.01%
Fox Run Management, L.L.C.	38,226	$141.4K	0.02%
Quadrature Capital Ltd	37,325	$138.1K	0.00%
Allianz Asset Management GmbH	27,100	$100.3K	0.00%
Virtu Financial LLC	25,742	$95.0K	0.01%
SFMG, LLC	25,031	$92.6K	0.01%
CIBC Private Wealth Group, LLC	30,600	$81.7K	0.00%
Lido Advisors, LLC	20,189	$74.7K	0.00%
Susquehanna Portfolio Strategies, LLC	16,296	$60.3K	0.03%
HRT Financial LP	15,051	$55.0K	0.00%
Price T Rowe Associates Inc	11,558	$43.0K	0.00%
Ground Swell Capital, LLC	11,223	$41.5K	0.09%
Ieq Capital, LLC	11,124	$41.2K	0.00%
Russell Investments Group, Ltd.	2,411	$8.92K	0.00%
Federated Hermes, Inc.	2,395	$8.86K	0.00%
Smartleaf Asset Management LLC	800	$3.46K	0.00%
Coldstream Capital Management Inc	685	$2.54K	0.00%
EverSource Wealth Advisors, LLC	376	$1.39K	0.00%
US Bancorp	336	$1.24K	0.00%
True Wealth Design, LLC	318	$1.18K	0.00%
Daiwa Securities Group Inc.	400	$1.00K	0.00%
The PNC Financial Services Group, Inc.	131	$485	0.00%
MAI Capital Management	123	$456	0.00%
Rise Advisors, LLC	95	$352	0.00%

Sold out (15)

Institutions that held Solid Biosciences Inc. at the end of Q4 2024 and filed for Q1 2025 without it.

Institutions that sold out of SLDB in Q1 2025
Institution	Shares, Q4 2024	Value, Q4 2024
Laurion Capital Management LP	255,077	$1.02M
Wellington Management Group LLP	124,551	$498.2K
Prudential Financial Inc	109,105	$436.4K
Cubist Systematic Strategies, LLC	65,613	$262.5K
D. E. Shaw & Co., Inc.	51,972	$207.9K
Los Angeles Capital Management LLC	42,989	$172.0K
Qube Research & Technologies Ltd	37,277	$149.1K
Two Sigma Advisers, LP	24,373	$97.5K
Algert Global LLC	22,089	$88.4K
Engineers Gate Manager LP	21,622	$86.5K
Sherbrooke Park Advisers LLC	15,768	$63.1K
Manufacturers Life Insurance Company, The	10,155	$40.6K
Corton Capital Inc.	10,152	$40.6K
Belvedere Trading LLC	901	$3.60K
Lazard Asset Management LLC	81	$0

Not filed for Q1 2025 yet (1)

Institutions that held Solid Biosciences Inc. at the end of Q4 2024 and haven't filed a 13F for Q1 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding SLDB in Q4 2024 that haven't filed for Q1 2025
Institution	Shares, Q4 2024	Value, Q4 2024
Nuveen Asset Management, LLC	197,929	$791.7K