Solid Biosciences Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:SLDB Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
11 Mar 25	BuyUS$9,924	Clare Kahn	Individual	1,860	US$5.34
19 Feb 25	BuyUS$4,030,000	Bain Capital Life Sciences Investors, LLC	Company	1,000,000	US$4.03
19 Feb 25	BuyUS$20,150,000	Perceptive Advisors LLC	Company	5,000,000	US$4.03
18 Feb 25	BuyUS$1,909,240	Adage Capital Management, L.P.	Company	252,545	US$7.56

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of SLDB?
Owner Type	Number of Shares	Ownership Percentage
Individual Insiders	480,772	0.603%
Hedge Funds	12,554,484	15.7%
VC/PE Firms	31,564,666	39.6%
Institutions	35,134,608	44.1%

Dilution of Shares: Shareholders have been substantially diluted in the past year, with total shares outstanding growing by 102%.

Top Shareholders

Top 25 shareholders own 93.7% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
15.4%	Perceptive Advisors LLC	11,906,646	US$75.8m	72.4%	2.33%
10.2%	Bain Capital Life Sciences Investors, LLC	7,911,669	US$50.4m	96.1%	6.06%
9.57%	Artal Group S.A.	7,415,905	US$47.2m	97.8%	1.43%
8.68%	Adage Capital Management, L.P.	6,729,484	US$42.9m	285%	0.07%
7.51%	Commodore Capital LP	5,825,000	US$37.1m	0%	2.05%
5.59%	RA Capital Management, L.P.	4,330,446	US$27.6m	0%	0.34%
4.54%	FMR LLC	3,517,888	US$22.4m	7,430%	no data
3.2%	VR Management, LLC	2,481,400	US$15.8m	0%	0.91%
3.17%	The Vanguard Group, Inc.	2,460,450	US$15.7m	75.6%	no data
2.77%	BlackRock, Inc.	2,150,873	US$13.7m	15.6%	no data
2.6%	Redmile Group, LLC	2,019,171	US$12.9m	228%	0.89%
2.43%	Citadel Advisors LLC	1,885,883	US$12.0m	98.8%	0.01%
2.26%	Vestal Point Capital, LP	1,753,558	US$11.2m	-38.5%	0.72%
2.16%	Monashee Investment Management, LLC	1,673,412	US$10.7m	249%	1.14%
2.12%	MPM BioImpact LLC	1,642,356	US$10.5m	0%	1.56%
2.12%	Alyeska Investment Group, L.P.	1,640,821	US$10.5m	374%	0.04%
1.6%	Franklin Resources, Inc.	1,240,700	US$7.9m	0%	no data
1.6%	Boxer Capital Management, LLC	1,240,700	US$7.9m	0%	1.76%
1.24%	Finepoint Capital LP	961,251	US$6.1m	0%	0.78%
1%	Casdin Capital, LLC	775,000	US$4.9m	0%	0.4%
0.96%	EcoR1 Capital, LLC	744,450	US$4.7m	0%	0.22%
0.82%	Woodline Partners LP	631,823	US$4.0m	0%	0.02%
0.81%	Balyasny Asset Management L.P.	627,274	US$4.0m	0%	0.01%
0.69%	Millennium Management LLC	534,564	US$3.4m	-25.7%	no data
0.68%	Geode Capital Management, LLC	530,859	US$3.4m	4.13%	no data

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2025/07/22 18:54
End of Day Share Price	2025/07/22 00:00
Earnings	2025/03/31
Annual Earnings	2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Solid Biosciences Inc. is covered by 22 analysts. 12 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Huidong Wang	Barclays
Timothy Chiang	BTIG
Charles Duncan	Cantor Fitzgerald & Co.