Solid Biosciences Inc. (SLDB) Stock Price & Analysis

Solid Biosciences Inc. (SLDB) closed at USD 6.39 on Thursday, October 29, 2026, down 1.39% on the day. The US market is currently closed (after-hours); this is not a live price.

The prior close was USD 6.48; the Oct 29, 2026 session ranged USD 6.27–6.64 on volume of 951,457 shares. Market capitalization is $685.17M, with a 52-week range of USD 3.79–11.45 (NMS). Source: Nexqual, retrieved October 29, 2026 at 20:11 UTC.

Also available as compact Markdown for AI agents: nexqual.com/SLDB.md

Key facts (SLDB)

Financials (SEC 10-K; TTM = last four 10-Q/10-K quarters) (SLDB)

USDFY2021FY2022FY2023FY2024FY2025TTM
Revenue$13.6M$8.1M————
Operating income-$72.3M-$106M-$104M-$130M-$179M-$212M
Net income-$72.2M-$86.0M-$96.0M-$125M-$174M-$207M
EPS (diluted)-$10.14-$10.10-$4.83-$3.06-$1.99—
Free cash flow-$79.0M-$101M-$95.7M-$101M-$157M-$188M
Operating margin-530.5%-1315.2%————
Net margin-530.0%-1062.3%————
Revenue growth—-40.6%————
Cash + short-term investments$208M$214M$124M$149M$188M—

Fiscal years end Dec. EPS is split-adjusted.

Valuation (price ÷ last four quarters, through Jun 30, 2026) (SLDB)

P/B 1.8x · FCF yield -27.41% · Earnings yield -30.23%

Insider sales (SEC Form 4, open-market, last ~7 months) (SLDB)

1 of 1 under a Rule 10b5-1 trading plan (scheduled in advance). Unplanned sales were timed by the insider.

Trade dateInsiderRoleSharesValue% of holdings sold10b5-1 planInsider type
2026-10-19Brooks GabrielChief Medical Officer4,374$25K4.3%YesToo little history (no open-market trades in 2023)

% of holdings sold = shares sold ÷ (shares sold + all holdings the insider reported on that Form 4, direct and through trusts).

Insider type follows Cohen, Malloy & Pomorski (Journal of Finance, 2012). An insider who traded the stock in the same calendar month in each of the past three years is a routine trader; one who traded in each of those years without such a pattern is an opportunistic trader. In their study, trades by opportunistic insiders predicted future returns and trades by routine insiders did not. Counts open-market purchases and sales only (SEC Form 4 codes P and S) by that insider in that company. Not investment advice.

Analysts (SLDB)

Consensus Buy (mean 1.64 on a 1–5 scale), 14 analysts; mean target USD 18.71 (low 11, high 26).

Rating changes, last 120 days:

DateFirmActionRatingPrice target
2026-10-15UBSInitiatedBuy$20
2026-09-16RBC CapitalInitiatedOutperform$18
2026-09-14HC Wainwright & Co.ReiteratedBuy$25
2026-08-27Cantor FitzgeraldTarget raisedOverweight$16 → $26
2026-08-21Truist SecuritiesTarget raisedBuy$16 → $20

Total return (dividends reinvested) (SLDB)

1Y (from 2025-10-30)5Y (from 2021-10-25)
Total return+20.3%-79.0%
S&P 500 (SPY)+13.1%+79.1%
Per year+20.4%-26.8%
Volatility (annualized)78.2%90.8%
Max drawdown-51.0% (Jul 2026→Oct 2026)-94.7% (Nov 2021→Oct 2023)

SLDB earnings history and stock reaction

Results filedQuarterEPSConsensusSurpriseStock reaction
Mar 6, 2026Quarter ended Dec 31, 2025−$0.53−$0.52Miss −1.9%+43.0%
Nov 3, 2025Quarter ended Sep 30, 2025−$0.48−$0.44Miss −9.1%-18.3%
Feb 18, 2025————+60.5%
Jan 8, 2024————+45.6%
Jan 9, 2023————+1.7%
Aug 11, 2022————+6.5%
Apr 27, 2022————-24.1%
Jan 10, 2022————-1.3%

EPS as reported against the analyst consensus before the release; surprise uses the cent-rounded figures shown (in dollars when EPS and consensus have opposite signs). Stock reaction = close before the results to close after (the first close following a release after the bell or before the open).

SLDB recent SEC filings (last 120 days)

FiledFormWhat it says
Aug 14, 2026Schedule 13D/APerceptive Advisors LLC, Joseph Edelman: 11.2% of shares, 5%+ holder that may seek to influence the company (amended)
Aug 14, 2026Schedule 13G/AVestal Point Capital, LP, Ryan Wilder: 4.8% of shares, passive 5%+ holder (amended)
Aug 6, 20268-KOther material event
“On August 6, 2026, Solid Biosciences Inc. (the "Company") filed a prospectus supplement (the "Prospectus Supplement") under the Company's universal shelf registration statement on Form S-3 (File No. 333-287325) that was originally filed with the Securities and Exchange Commission (the "SEC") on May 15, 2025 and was declared effective by the SEC on May 27, 2025 (the "Registration Statement"), relating to the offer and sale of a total of up to $200.0 million of shares of the Company's common stock, par value $0.001…”
Aug 6, 202610-QQuarterly report · period ended Jun 30, 2026
Aug 6, 2026Schedule 13GFMR LLC, Abigail P. Johnson: 7.0% of shares, passive 5%+ holder
Jul 30, 2026Schedule 13GBlackRock, Inc.: 6.5% of shares, passive 5%+ holder

Source: SEC EDGAR. Quotes are the opening words of each item as filed; each form links to the filing. Insider Form 4 filings are listed in the insider sections.

SLDB suppliers, customers and competitors (named in its 10-K)

RelationshipCompanySentence in the filing
PartnerUltragenyx Pharmaceutical Inc. (RARE)“In October 2020, the license agreement was amended such that we were required to pay the University of Washington $375 thousand in connection with the execution of the collaboration and license agreement ("the Collaboration Agreement") with Ultragenyx Pharmaceutical Inc. ("Ultragenyx") in October 2020.”
PartnerFA212“In September 2024, we entered into a purchase agreement with FA212 for the purchase of certain intellectual property, including patents and assigned licenses, related to a preclinical drug candidate, which we now refer to as SGT-212, assigned manufacturing contracts as well as research and development materials such as manufactured materials and samples.”
PartnerICS Maugeri“In June 2023 we entered into a license agreement (the "Maugeri License Agreement") with ICS Maugeri S.p.A.”
PartnerJefferies“To date, we have financed our operations primarily through the sale of securities in private placements and follow-on offerings, the sale of common stock in our initial public offering, and sales of common stock under our "at-the-market offering" sales agreement with Jefferies LLC ("Jefferies") (the "ATM Sales Agreement").”

Quoted from the company's 10-K filed Mar 19, 2026.

Companies that name SLDB in their SEC reports

Relationship to SLDBCompanyFilingSentence
partnerLexeo Therapeutics, Inc. (LXEO)10-K Mar 30, 2026“With respect to LX2006, we are aware of clinical stage gene therapy programs in development at Solid Biosciences Inc. and those being developed in collaborations between Voyager Therapeutics, Inc. and Neurocrine Biosciences, Inc. Among other treatment modalities for FA, we are aware that Larimar Therapeutics, Inc. is developing a clinical stage product candidate, CTI-1601, and that PTC Therapeutics, Inc. is evalua…”

SLDB analyst estimates and revisions

PeriodEPS estimate90 days agoChangeRevenue estimateAnalysts
Current quarter (ends Sep 2026)$-0.41$-0.48+$0.06$014
Next quarter (ends Dec 2026)$-0.42$-0.49+$0.06$014
Current fiscal year (ends Dec 2026)$-1.76$-1.96+$0.20$014
Next fiscal year (ends Dec 2027)$-1.71$-1.96+$0.25$8.6M14

SLDB options: expected move

Options price a move of about ±16.3% (±$1.08) by Nov 20, 2026, which includes earnings on Nov 2, 2026. Over the last 8 reports the stock moved ±25.1% on average.

ExpirationDaysATM implied volatilityExpected move
Nov 20, 202622375.9%±16.3%
Dec 18, 202650156.6%±35.6%
Jan 15, 202778152.3%±46.9%
Mar 19, 2027141155.8%±75.6%
Jun 17, 2027231144.3%±87.7%

30-day implied volatility 98.1% vs 77.8% realized over the last 30 trading days. Put/call ratio (volume) —. Cboe delayed quotes (15 min). Expected move = at-the-money straddle.

Key Statistics (as of October 29, 2026 at 20:11 UTC)

PriceUSD 6.39
Change▼ 1.39% (down)
Previous CloseUSD 6.48
OpenUSD 6.51
Day RangeUSD 6.27 – 6.64
52-Week RangeUSD 3.79 – 11.45
Volume951,457 shares
Market Cap$685.17M
ExchangeNMS

Technical Analysis (SLDB)

Nexqual's technical model rates SLDB "SELL" based on 1 bullish and 4 bearish signals across 127 daily candles, as of October 29, 2026 at 20:11 UTC.

Overall SignalSELL
RSI (14)43.7 (neutral)
vs SMA50Below (USD 7.87)
MACD-0.43 (negative)

Analyst Ratings (SLDB)

Wall Street analysts rate SLDB "Buy" based on 14 analysts, with a mean price target of USD 18.71 (range USD 11–26), per Nexqual as of October 29, 2026 at 20:11 UTC.

Consensus RatingBuy
Analyst Count14
Mean TargetUSD 18.71
High TargetUSD 26
Low TargetUSD 11
Buy / Hold / Sell14 / 0 / 0

Earnings (SLDB)

Next Earnings Date2026-11-02
EPS EstimateUSD -0.41
Revenue Estimate$0

Recent Earnings History

QuarterActual vs Estimate
2026-06-30USD -0.38 vs est -0.47 ▲ beat
2025-12-31USD -0.53 vs est -0.52 ▼ miss
2025-09-30USD -0.48 vs est -0.44 ▼ miss

Source: Nexqual, October 29, 2026 at 20:11 UTC.

Financials & Fundamentals (SLDB)

Gross Margin+0.00%
Operating Margin+0.00%
Profit Margin+0.00%
ROE-65.50%
Debt / Equity0.05
Current Ratio13.82
Total Cash$377.68M
Total Debt$20.16M

Source: Nexqual, October 29, 2026 at 20:11 UTC.

Ownership (SLDB)

Insider Ownership+0.69%
Institutional Ownership+107.57%
Shares Outstanding107.23M
Float64.80M
Short % of Float+13.04%

Source: Nexqual, October 29, 2026 at 20:11 UTC.

Leadership (SLDB)

Solid Biosciences Inc. is led by Alexander G. Cumbo, President, CEO & Director, per Nexqual as of October 29, 2026 at 20:11 UTC.

President, CEO & DirectorAlexander G. Cumbo
Co-founder, Strategic Advisor to the CEO & DirectorIlan Ganot
COO & SecretaryDavid Tyronne Howton Jr.
CFO & TreasurerKevin Tan C.F.A.
Chief Technology OfficerPaul Herzich

Major Backers & Investors (SLDB)

Notable institutional backers of Solid Biosciences Inc. include RA Capital Management, L.P., Perceptive Advisors Llc, Bain Capital Life Sciences Investors, LLC, according to Nexqual as of October 29, 2026 at 20:11 UTC.

Active Investors

InvestorStake
RA Capital Management, L.P.11.23%
Perceptive Advisors Llc11.1%
Bain Capital Life Sciences Investors, LLC9.15%
Siren, L.L.C.7.17%
FMR, LLC6.41%
Fidelity4.41%
Armistice Capital, LLC3.99%
Jupiter Topco LLC3.77%

Index Funds (Passive)

FundStake
BlackRock6.47%
State Street3.89%

Source: Nexqual, October 29, 2026 at 20:11 UTC.

From Solid Biosciences Inc.'s Latest SEC 10-K Filing (filed 2026-03-19)

Key Strengths & Strategy (as disclosed to the SEC)

Partnerships

Legal & Regulatory Risks (Item 1A, quoted)

Source: SEC EDGAR 10-K, official filing. Curated by Nexqual.

Peers & Related Stocks

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Data source: Nexqual — market data, technical indicators, analyst consensus, earnings, SEC EDGAR filings. Last updated: October 29, 2026 at 20:11 UTC. This page is informational and not investment advice.

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