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Companies / Health Care / Solid Biosciences Inc.
SLDB

Solid Biosciences Inc.

Health CareBiological Products
Ticker SLDBCHARLESTOWN, MAFiscal year ends DecemberBook value per share $2.53Diluted shares 135.0M

Solid Biosciences Inc. (Nasdaq: SLDB) is a life sciences company developing gene therapy candidates for rare neuromuscular and cardiac diseases. Its pipeline includes SGT-003 for Duchenne muscular dystrophy, SGT-212 for Friedreich’s ataxia, SGT-501 for catecholaminergic polymorphic ventricular tachycardia, and… From the company’s description.

In fiscal 2025, Solid Biosciences Inc. reported a net loss of $174.32M. Operations used $156.29M in cash.

Fiscal year 2025 · ends 12-31Changes are against fiscal 2024The amber dot is the latest twelve months, to 2026-09-30
Sales & profitability
—
0.00%FY2025
$-174.32MFY2025
−39.8% year over year
Last 12 mo $-215.27M
-96.84%FY2025
−6 percentage points
Last 12 mo -62.92%
Cash & financing
$-156.29MFY2025
−56.3% year over year
Last 12 mo $-198.92M
$-157.44MFY2025
−56.4% year over year
Last 12 mo $-200.30M
0.00FY2025
Was 0.01× a year earlier
87.5MFY2025
+114.4% year over year
Last 12 mo 135.0M

Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.

What Solid Biosciences Inc. does

In the company’s own words

Solid Biosciences Inc. (Nasdaq: SLDB) is a life sciences company developing gene therapy candidates for rare neuromuscular and cardiac diseases. Its pipeline includes SGT-003 for Duchenne muscular dystrophy, SGT-212 for Friedreich’s ataxia, SGT-501 for catecholaminergic polymorphic ventricular tachycardia, and candidates for inherited cardiomyopathies, including SGT-601 for TNNT2-mediated dilated cardiomyopathy. The company’s programs use gene transfer to deliver functional genetic material to patients’ cells, and it also develops platform technologies such as novel capsids and genetic regulators. Its clinical-stage candidates are being evaluated in trials, while other programs remain in preclinical development or discovery; it has no product sales. Solid also licenses its POLARIS-101 capsid to companies, institutions and academic laboratories pursuing neuromuscular and cardiac disease research, with more than 50 agreements including licenses executed. The company was organized in 2013 as SOLID Ventures Management, LLC and converted to a Delaware corporation in 2018. Its website is https://www.solidbio.com.

Company details
Sector
Health Care
Industry (SIC)
Biological Products
Headquarters
CHARLESTOWN, MA
Fiscal year end
December
CIK
1707502
SIC
2836

Financial performance, year by year

Fiscal 2018–2025 · USD
$-238.16M$-169.49M$-100.83M$-32.16M$36.51M20182019202020212022202320242025Last 12 moLast 12 months

The full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.

Ownership

Who owns Solid Biosciences Inc. — and what changed

Funds as of 2026Q2 · superinvestors as of 2026-06-30

140
funds hold it
0 of 35
superinvestors hold it
$188.22M
held by funds, at market
19.1%
of shares held by funds

Largest fund holders · Solid Biosciences Inc.’s weight in each

VANGUARD TOTAL STOCK MARKET INDEX FUND
VTI · VANGUARD INDEX FUNDS
0.00%of fund net assets
0.24%of fund net assets
iShares Russell 2000 ETF
IWM · iShares Trust
0.02%of fund net assets
Select Biotechnology Portfolio
FBIOX · Fidelity Select Portfolios
—of fund net assets
Columbia Small Cap Growth Fund
CGOAX · COLUMBIA FUNDS SERIES TRUST I
—of fund net assets

Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.

Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.

Could not be determined for this company: bond issues.

Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.

Connected research

Put this business in context.

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