Solid Biosciences (SLDB) Stock: Why It's Up Today
Updated Oct 19, 2026, 12:05 PM ET · intraday price
- Trading at $5.82 as of 12:05 PM ET, +5.15% vs the prior close of $5.53.
- Volume 478.22K shares, 0.4x its 50-day average (light).
- No new SEC filings since the prior session.
- No new insider buys or sales reported since the prior session.
SLDB jumps 5.2% to $5.82. Trading at $5.82 (intraday, 12:05 PM ET), +5.15% vs the prior close of $5.53. Day range $5.56–$5.86, opened at $5.62.
SLDB daily analysis — what happened
A plain-English, data-only note for every US trading day (today's note updates every 2 hours while the market is open). Newest first; older days stay archived below.
Oct 19, 2026 — SLDB jumps 5.2% to $5.82
- Trading at $5.82 (intraday, 12:05 PM ET), +5.15% vs the prior close of $5.53. Day range $5.56–$5.86, opened at $5.62.
- Volume was 478.22K shares, 0.4x its 50-day average of 1.19M — lighter than usual.
- Price is -30.2% vs its 50-day average ($8.33) and -23.7% vs its 200-day average ($7.62).
- 52-week range $3.79–$11.45; the current price sits at 26% of that range, 49.2% below the 52-week high.
Oct 16, 2026 — SLDB slides 3.7% to $5.53
- Closed at $5.53, -3.66% vs the prior close of $5.74. Day range $5.48–$5.82, opened at $5.73.
- Volume was 1.40M shares, 1.2x its 50-day average of 1.17M.
- Price is -34.0% vs its 50-day average ($8.38) and -27.5% vs its 200-day average ($7.62).
- 52-week range $3.79–$11.45; today's close sits at 23% of that range, 51.7% below the 52-week high.
Oct 15, 2026 — SLDB jumps 5.0% to $5.74
- Closed at $5.74, +5.03% vs the prior close of $5.47. Day range $5.39–$5.84, opened at $5.55.
- Volume was 2.03M shares, 1.8x its 50-day average of 1.15M.
- Price is -32.0% vs its 50-day average ($8.44) and -24.7% vs its 200-day average ($7.62).
- 52-week range $3.79–$11.45; today's close sits at 25% of that range, 49.9% below the 52-week high.
Oct 14, 2026 — SLDB slides 6.1% to $5.47, a 6-month low on 2.1x normal volume
- Closed at $5.47, -6.10% vs the prior close of $5.82. Day range $5.40–$5.71, opened at $5.66.
- Volume was 2.38M shares, 2.1x its 50-day average of 1.12M — unusually heavy trading.
- Price is -35.7% vs its 50-day average ($8.50) and -28.3% vs its 200-day average ($7.62).
- 52-week range $3.79–$11.45; today's close sits at 22% of that range, 52.3% below the 52-week high.
- That makes 3 straight losses.
Oct 13, 2026 — SLDB slides 13.3% to $5.82, a 6-month low on 2.7x normal volume
- Closed at $5.82, -13.26% vs the prior close of $6.71. Day range $5.70–$6.65, opened at $6.65.
- Volume was 2.87M shares, 2.7x its 50-day average of 1.08M — unusually heavy trading.
- Price is -32.1% vs its 50-day average ($8.57) and -23.7% vs its 200-day average ($7.62).
- 52-week range $3.79–$11.45; today's close sits at 27% of that range, 49.2% below the 52-week high.
Oct 12, 2026 — SLDB dips 2.3% to $6.71, a 3-month low
- Closed at $6.71, -2.33% vs the prior close of $6.87. Day range $6.69–$6.93, opened at $6.85.
- Volume was 601.30K shares, 0.6x its 50-day average of 1.09M — lighter than usual.
- Price is -22.1% vs its 50-day average ($8.61) and -12.0% vs its 200-day average ($7.63).
- 52-week range $3.79–$11.45; today's close sits at 38% of that range, 41.4% below the 52-week high.
Oct 9, 2026 — SLDB rises 0.7% to $6.87
- Closed at $6.87, +0.73% vs the prior close of $6.82. Day range $6.76–$7.05, opened at $6.81.
- Volume was 726.80K shares, 0.7x its 50-day average of 1.09M.
- Price is -20.5% vs its 50-day average ($8.64) and -9.9% vs its 200-day average ($7.62).
- 52-week range $3.79–$11.45; today's close sits at 40% of that range, 40.0% below the 52-week high.
Oct 8, 2026 — SLDB dips 0.4% to $6.82, a 3-month low, 3 down days in a row
- Closed at $6.82, -0.44% vs the prior close of $6.85. Day range $6.64–$6.88, opened at $6.75.
- Volume was 1.31M shares, 1.2x its 50-day average of 1.09M.
- Price is -21.3% vs its 50-day average ($8.67) and -10.5% vs its 200-day average ($7.62).
- 52-week range $3.79–$11.45; today's close sits at 40% of that range, 40.4% below the 52-week high.
- That makes 3 straight losses.
Oct 7, 2026 — SLDB dips 1.0% to $6.85
- Closed at $6.85, -1.01% vs the prior close of $6.92. Day range $6.69–$6.97, opened at $6.76.
- Volume was 744.60K shares, 0.7x its 50-day average of 1.10M.
- Price is -21.2% vs its 50-day average ($8.69) and -10.0% vs its 200-day average ($7.61).
- 52-week range $3.79–$11.45; today's close sits at 40% of that range, 40.2% below the 52-week high.
Oct 6, 2026 — SLDB dips 2.0% to $6.92
- Closed at $6.92, -1.98% vs the prior close of $7.06. Day range $6.65–$7.11, opened at $7.11.
- Volume was 1.19M shares, 1.1x its 50-day average of 1.10M.
- Price is -20.6% vs its 50-day average ($8.72) and -9.0% vs its 200-day average ($7.60).
- 52-week range $3.79–$11.45; today's close sits at 41% of that range, 39.6% below the 52-week high.
Oct 5, 2026 — SLDB jumps 3.1% to $7.06
- Closed at $7.06, +3.07% vs the prior close of $6.85. Day range $6.77–$7.20, opened at $6.88.
- Volume was 1.37M shares, 1.3x its 50-day average of 1.09M.
- Price is -19.2% vs its 50-day average ($8.73) and -7.1% vs its 200-day average ($7.60).
- 52-week range $3.79–$11.45; today's close sits at 43% of that range, 38.3% below the 52-week high.
Oct 2, 2026 — SLDB dips 1.9% to $6.85, a 3-month low
- Closed at $6.85, -1.86% vs the prior close of $6.98. Day range $6.78–$7.26, opened at $7.14.
- Volume was 1.20M shares, 1.1x its 50-day average of 1.09M.
- Price is -21.7% vs its 50-day average ($8.75) and -9.8% vs its 200-day average ($7.59).
- 52-week range $3.79–$11.45; today's close sits at 40% of that range, 40.2% below the 52-week high.
SLDB bull case vs bear case (from the data)
- No clear positive signal in the price trend, filings or insider data right now.
- Price is -30.2% vs its 50-day average — short-term trend is down.
- Price is -23.7% vs its 200-day average — below the long-term trend line.
- Annual revenue fell 40.6% in the latest fiscal year (SEC XBRL).
- Latest fiscal-year net income: loss of $117.22M.
- Insider selling outweighs buying: 25 sales vs 0 open-market buys among the 25 most recent reported insider trades (Form 4, last 12 months).
- Share count up 37.7% in a year (dilution).
- High volatility: average daily move of 3.7% over 20 sessions.
SLDB latest news & SEC filings
Every SEC filing by or about SLDB in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.
Oct 6, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Smith Ian F converted options/RSUs into 3,440 shares on Oct 2, 2026; now holds 141,585
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Aug 14, 2026 · Form SCHEDULE 13D/A — Update to a 13D 5%+ stake disclosure
Update to a 13D 5%+ stake disclosure
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Aug 14, 2026 · Form SCHEDULE 13G/A — Update to a passive 5%+ stake (13G)
Update to a passive 5%+ stake (13G)
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Aug 6, 2026 · Form 8-K — Major event / current report
Current report — a filing companies must make within 4 business days of a major event
- Item 8.01 — Reported other events the company considers important.
Aug 6, 2026 · Form 424B5 — Prospectus supplement
Prospectus supplement — the company is selling securities off a shelf registration
An offering document: new shares or debt may be sold, which can increase the share count (dilution) or debt load. Size and terms are in the prospectus.
Aug 6, 2026 · Form S-3ASR — S-3ASR filing
S-3ASR filing
An offering document: new shares or debt may be sold, which can increase the share count (dilution) or debt load. Size and terms are in the prospectus.
Aug 6, 2026 · Form 10-Q — Quarterly report
Quarterly report (unaudited financial statements for the quarter)
:
- Diluted EPS: -$0.38 (prior year -$0.42) (loss narrowed vs Jun 30, 2025)
Aug 6, 2026 · Form SCHEDULE 13G — Passive stake (13G)
Passive stake (13G) — an investor reported owning more than 5%
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Jul 30, 2026 · Form SCHEDULE 13G — Passive stake (13G)
Passive stake (13G) — an investor reported owning more than 5%
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Jul 7, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Jun 24, 2026 · Form 3 — New insider holdings
Initial insider ownership statement (Form 3) — a new director, officer or 10% owner disclosed their holdings
Jun 24, 2026 · Form SCHEDULE 13D/A — Update to a 13D 5%+ stake disclosure
Update to a 13D 5%+ stake disclosure
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Things to know before you trade SLDB
- Last results release: Mar 6, 2026 (8-K Item 2.02). Previous ones: Nov 3, 2025, Feb 18, 2025, Jan 8, 2024. Based on that rhythm, the next report is likely around Jun 5, 2026 — an estimate, not a confirmed date.
- How much it moves: over the last 20 sessions the average daily move was 3.73% (largest 13.3%). That is a volatile stock.
- Liquidity: about 1.38M shares (≈$8.01M) trade per day on average.
- 52-week position: $5.82 vs a range of $3.79–$11.45 (26% of the range).
- Dividends: no cash dividends in the last 2 years.
- Splits: none in the last 2 years.
- Insider trades (Form 4, last 12 months, recent 25 shown): 0 open-market buys, 25 sales; latest: Kevin Tan sold 5,404 shares on Feb 18, 2026.
- Latest filings: 8-K Aug 6, 2026; 10-Q Aug 6, 2026; 8-K Jun 10, 2026.
- Share count: 107.23M shares outstanding (Aug 4, 2026), +37.7% vs a year earlier — notable dilution.
- Listing: Nasdaq · industry: Biological Products, (No Diagnostic Substances).
SLDB market data (last 20 sessions)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 19, 2026 | 5.62 | 5.86 | 5.56 | 5.82 | 478.22K |
| Oct 16, 2026 | 5.73 | 5.82 | 5.48 | 5.53 | 1.40M |
| Oct 15, 2026 | 5.55 | 5.84 | 5.39 | 5.74 | 2.03M |
| Oct 14, 2026 | 5.66 | 5.71 | 5.40 | 5.47 | 2.38M |
| Oct 13, 2026 | 6.65 | 6.65 | 5.70 | 5.82 | 2.87M |
| Oct 12, 2026 | 6.85 | 6.93 | 6.69 | 6.71 | 601.30K |
| Oct 9, 2026 | 6.81 | 7.05 | 6.76 | 6.87 | 726.80K |
| Oct 8, 2026 | 6.75 | 6.88 | 6.64 | 6.82 | 1.31M |
| Oct 7, 2026 | 6.76 | 6.97 | 6.69 | 6.85 | 744.60K |
| Oct 6, 2026 | 7.11 | 7.11 | 6.65 | 6.92 | 1.19M |
| Oct 5, 2026 | 6.88 | 7.20 | 6.77 | 7.06 | 1.37M |
| Oct 2, 2026 | 7.14 | 7.26 | 6.78 | 6.85 | 1.20M |
| Oct 1, 2026 | 7.14 | 7.24 | 6.91 | 6.98 | 1.58M |
| Sep 30, 2026 | 7.24 | 7.54 | 7.16 | 7.23 | 1.71M |
| Sep 29, 2026 | 7.26 | 7.32 | 6.90 | 7.16 | 1.39M |
| Sep 28, 2026 | 7.14 | 7.34 | 7.09 | 7.28 | 1.41M |
| Sep 25, 2026 | 7.53 | 7.54 | 7.15 | 7.29 | 1.42M |
| Sep 24, 2026 | 7.95 | 8.00 | 7.35 | 7.48 | 1.35M |
| Sep 23, 2026 | 8.89 | 8.91 | 8.00 | 8.02 | 1.09M |
| Sep 22, 2026 | 8.67 | 8.95 | 8.56 | 8.92 | 1.31M |
About Solid Biosciences
Solid Biosciences (SLDB) is listed on the Nasdaq and classified by the SEC under “Biological Products, (No Diagnostic Substances)”. Its business address is in CHARLESTOWN, MA. State of incorporation: DE. Fiscal year ends December 31. SEC CIK 1707502.
SLDB board of directors & executives
From SEC Form 3/4/5 insider filings made in the last 12 months (date = latest filing).
Directors
| Name | Role | Latest filing |
|---|---|---|
| Alexander Cumbo | President and CEO | Apr 21, 2026 |
| Joseph Edelman | Director | Jun 11, 2026 |
| Martin I Freed | Director | Jun 11, 2026 |
| Ilan Ganot | Director | Jun 11, 2026 |
| Clare Kahn | Director | Jun 11, 2026 |
| Georgia Keresty | Director | Jun 11, 2026 |
| Sukumar Nagendran | Director | Jun 11, 2026 |
| Advisors Llc Perceptive | Director | Jun 11, 2026 |
| Life Sciences Master Fund Ltd Perceptive | Director | Jun 11, 2026 |
| Ian F Smith | Director | Jul 7, 2026 |
| Adam Leo Stone | Director | Jun 11, 2026 |
| Lynne Marie Sullivan | Director | Jun 11, 2026 |
Executive officers
| Name | Title | Latest filing |
|---|---|---|
| Gabriel Brooks | Chief Medical Officer | Apr 21, 2026 |
| Alexander Cumbo | President and CEO | Apr 21, 2026 |
| Jessie Hanrahan | Chief Regulatory Officer | Apr 21, 2026 |
| Paul Herzich | Chief Technology Officer | Apr 21, 2026 |
| David T Howton | Chief Operating Officer | Apr 21, 2026 |
| Kevin Tan | CFO & Treasurer | Apr 21, 2026 |
Recent insider buys & sales
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Feb 18, 2026 | Kevin Tan | Sale | 5,404 | $5.82 |
| Feb 18, 2026 | Kevin Tan | Sale | 5,404 | $5.82 |
| Feb 18, 2026 | Kevin Tan | Sale | 5,404 | $5.82 |
| Feb 18, 2026 | Kevin Tan | Sale | 5,404 | $5.82 |
| Feb 18, 2026 | Gabriel Brooks | Sale | 0 | $5.82 |
| Feb 18, 2026 | Gabriel Brooks | Sale | 0 | $5.82 |
| Feb 18, 2026 | Gabriel Brooks | Sale | 0 | $5.82 |
| Feb 18, 2026 | Gabriel Brooks | Sale | 0 | $5.82 |
| Feb 18, 2026 | Jessie Hanrahan | Sale | 4,134 | $5.82 |
| Feb 18, 2026 | Jessie Hanrahan | Sale | 4,134 | $5.82 |
| Feb 18, 2026 | Jessie Hanrahan | Sale | 4,134 | $5.82 |
| Feb 18, 2026 | Jessie Hanrahan | Sale | 4,134 | $5.82 |
| Feb 18, 2026 | David T Howton | Sale | 7,469 | $5.82 |
| Feb 18, 2026 | David T Howton | Sale | 7,469 | $5.82 |
| Feb 18, 2026 | David T Howton | Sale | 7,469 | $5.82 |
SLDB financials (annual, from XBRL filings)
| Fiscal year end | Revenue | Net income | Diluted EPS | Operating cash flow |
|---|---|---|---|---|
| Dec 31, 2022 | $8.09M | — | -10.10 | $-97.98M |
| Dec 31, 2021 | $13.62M | — | -10.14 | $-77.76M |
| Dec 31, 2020 | $0 | — | — | — |
| Dec 31, 2019 | $0 | $-117.22M | — | — |
| Dec 31, 2018 | $0 | $-74.80M | — | — |
Latest balance sheet: total assets $420.58M, total liabilities $46.51M, cash $159.39M (as of Jun 30, 2026).
SLDB earnings / results-day log
| Date | Filing | Close that day |
|---|---|---|
| Mar 6, 2026 | 8-K Item 2.02 (results) | $6.75 |
| Nov 3, 2025 | 8-K Item 2.02 (results) | $5.20 |
| Feb 18, 2025 | 8-K Item 2.02 (results) | $5.30 |
| Jan 8, 2024 | 8-K Item 2.02 (results) | — |
| Jan 9, 2023 | 8-K Item 2.02 (results) | — |
| Aug 11, 2022 | 8-K Item 2.02 (results) | — |
| Apr 27, 2022 | 8-K Item 2.02 (results) | — |
| Jan 10, 2022 | 8-K Item 2.02 (results) | — |
| Aug 16, 2021 | 8-K Item 2.02 (results) | — |
| May 14, 2021 | 8-K Item 2.02 (results) | — |
| Mar 15, 2021 | 8-K Item 2.02 (results) | — |
| Nov 5, 2020 | 8-K Item 2.02 (results) | — |
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Information only, not investment advice. BuyMeWhiskey is not a registered investment adviser or broker-dealer; nothing here is a recommendation to buy, sell or hold any security, and there are no price targets. Data comes from SEC EDGAR filings and public end-of-day market data and may be delayed or contain errors. Verify with the company's filings before making decisions. Prices: intraday data as of Oct 19, 2026, 12:05 PM ET. Filings: SEC EDGAR. Refreshed every 2 hours during US market hours.