Biotech Sector Sustains After-Hours Trading Gains
Written by Emily J. Thompson, Senior Investment Analyst
Updated: Dec 18 2025
0mins
Should l Buy SLDB?
Source: NASDAQ.COM
Market Activity: Several small- and mid-cap stocks experienced notable gains in after-hours trading, driven by investor sentiment and sector momentum rather than new company news.
Top Gainers: Spyre Therapeutics, Inc. (SYRE) led the gains with a 4.99% increase, followed by The Oncology Institute, Inc. (TOI) with a 5.49% rise, both without any fresh updates.
Sector Trends: Aurora Cannabis Inc. (ACB) and Lexeo Therapeutics, Inc. (LXEO) also saw gains, benefiting from renewed momentum in the cannabis and biotech sectors, respectively, despite no new announcements.
Significant Developments: Solid Biosciences Inc. (SLDB) recently highlighted a key milestone regarding Duchenne muscular dystrophy, which has positively influenced its stock performance, even without new news on the trading day.
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Analyst Views on SLDB
Wall Street analysts forecast SLDB stock price to rise
10 Analyst Rating
10 Buy
0 Hold
0 Sell
Strong Buy
Current: 8.180
Low
9.00
Averages
14.88
High
20.00
Current: 8.180
Low
9.00
Averages
14.88
High
20.00
About SLDB
Solid Biosciences Inc. is a life sciences company developing precision genetic medicines for neuromuscular and cardiac diseases. The Company is focused on advancing a portfolio of gene therapy candidates including SGT-003 for the treatment of Duchenne muscular dystrophy, SGT-212 for the treatment of Friedreich's ataxia, SGT-501 for the treatment of catecholaminergic polymorphic ventricular tachycardia, SGT-601 for the treatment of TNNT2-mediated dilated cardiomyopathy and additional assets for the treatment of genetic cardiac and neuromuscular disease. It also has two cardiac pipeline gene transfer programs, SGT-401 for BAG3-mediated DCM, which is in early preclinical development, and SGT-701 for RBM20 DCM, which is in the discovery stage. In addition to its gene transfer candidates, the Company has development programs focusing on platform technologies, including capsid libraries and dual gene expression, a technology that allows it to package multiple transgenes into one capsid.
About the author
Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
Solid Biosciences Updates on SGT-003 Clinical Trial Data
- Clinical Trial Progress: Solid Biosciences has dosed 40 participants in its Phase 1/2 INSPIRE DUCHENNE trial with SGT-003, revealing robust microdystrophin expression and improvements in muscle integrity, indicating potential therapeutic effects for patients with Duchenne muscular dystrophy.
- Safety Analysis: The new data indicates that SGT-003 has shown good tolerability and safety among participants; however, the stock price fell by 9.72%, reflecting investor concerns about short-term volatility despite promising trial results.
- Regulatory Path Planning: The company plans to meet with the FDA in the first half of 2026 to discuss an accelerated approval pathway for SGT-003, a move that could significantly impact its market position, with further updates expected in mid-2026.
- Market Performance Analysis: Solid Biosciences shares are currently priced at $7.38, trading 18.9% above the 20-day simple moving average, but with an RSI of 70.01 indicating overbought conditions, suggesting potential short-term correction risks ahead.
See More
Solid Biosciences Shares Drop After Clinical Data Release
- Clinical Trial Data Released: Solid Biosciences announced interim data from its ongoing SGT-003 trial, indicating restoration of the dystrophin-associated protein complex as of February 23, suggesting potential efficacy in treating Duchenne muscular dystrophy.
- Good Tolerability: As of March 11, 40 patients had received the one-time intravenous therapy, with the company noting its good tolerability, which enhances confidence in SGT-003's potential to positively impact the disease course of Duchenne.
- Negative Market Reaction: Despite the promising clinical data, SLDB shares fell after the presentation at a medical event, reversing some recent gains attributed to the departure of FDAbiologics CEO Vinay Prasad, reflecting market concerns about the company's outlook.
- Funding Plan: Solid Biosciences announced a $240 million private placement to support further development and clinical trials of SGT-003, indicating the company's strategic intent to invest in its future despite stock volatility.
See More
FDA CBER Head Dr. Vinay Prasad to Depart, Impact on Moderna and Rare Disease Stocks
- Leadership Change: Dr. Vinay Prasad, head of the FDA's Center for Biologics Evaluation and Research, confirmed his departure in April, prompting market interest, particularly as Moderna's stock rises due to his controversial drug review decisions.
- Positive Market Reaction: Analyst from William Blair noted that investors are optimistic about Prasad's exit, believing it will benefit regulatory approvals for rare disease drugs, especially those utilizing single-arm studies and external controls.
- Potential Gains for Moderna: With Prasad's departure, Moderna's mRNA-1010 vaccine could qualify for full approval in adults aged 65 and older, potentially sparing the company from conducting an additional costly vaccine efficacy study.
- Stock Price Increases: Following the news of Prasad's resignation, stocks of Solid Biosciences and Capricor Therapeutics rose by 12.15% and 9.07%, respectively, indicating increased market confidence in rare disease treatments.
See More
Relmada Therapeutics Shares Surge 40.8% on Promising Trial Data
- Market Decline: U.S. stocks fell broadly on Monday, with the Dow Jones index dropping around 650 points, indicating investor concerns about economic outlook which may impact consumer spending and overall market confidence.
- Relmada Stock Surge: Shares of Relmada Therapeutics Inc. soared 40.8% to $6.27 during Monday's session, driven by the release of promising interim data from its Phase 2 trial of NDV-01 for treating non-muscle invasive bladder cancer.
- Clinical Trial Results: The 12-month interim data revealed a complete response rate of 76%, with an impressive 80% in the BCG-unresponsive patient population, providing strong support for Relmada's treatment approach and potentially enhancing market acceptance.
- Positive Market Reaction: The favorable feedback from clinical data has led to optimistic investor sentiment regarding Relmada's future prospects, not only boosting the company's stock price but also likely attracting more investor interest in its ongoing research and development efforts.
See More
Marvell Technology Surges After Strong Q4 Earnings Report
- Strong Earnings Report: Marvell Technology reported fourth-quarter revenue of $2.22 billion, slightly exceeding the market consensus of $2.21 billion, indicating robust performance in the semiconductor sector and reinforcing its market position.
- Earnings Beat Expectations: Adjusted earnings came in at $0.80 per share, surpassing the expected $0.79, demonstrating significant progress in cost control and operational efficiency, which enhances investor confidence.
- Significant Stock Surge: Following the positive earnings report, Marvell's stock price jumped 18.4% to $89.56 during Friday's trading session, reflecting optimistic market expectations regarding the company's future growth potential.
- Positive Market Reaction: Despite a broader market decline with the Dow Jones index falling around 500 points, Marvell's strong earnings attracted investor attention, showcasing its resilience in an uncertain market environment.
See More
Solid Biosciences Secures $240 Million Private Placement
- Financing Size: Solid Biosciences has entered into a securities purchase agreement for approximately $240 million in a private placement, selling 14.97 million shares at $5.61 each, indicating strong market confidence in its future prospects.
- Pre-Funded Warrant Option: Investors have the option to purchase up to 27.80 million shares through pre-funded warrants priced at $5.609 each, with an exercise price of just $0.001, providing flexible investment choices that may attract more participants.
- Use of Proceeds: The net proceeds from this financing will be allocated to ongoing pipeline development programs, business development activities, and general corporate purposes, highlighting the company's strategic focus on expanding its R&D and market initiatives.
- Market Reaction: Following the private placement announcement, Solid Biosciences' stock rose 10.87% in pre-market trading to $6.22, reflecting positive investor sentiment regarding the company's growth potential.
See More
Solid Biosciences Updates on SGT-003 Clinical Trial Data
- Clinical Trial Progress: Solid Biosciences has dosed 40 participants in its Phase 1/2 INSPIRE DUCHENNE trial with SGT-003, revealing robust microdystrophin expression and improvements in muscle integrity, indicating potential therapeutic effects for patients with Duchenne muscular dystrophy.
- Safety Analysis: The new data indicates that SGT-003 has shown good tolerability and safety among participants; however, the stock price fell by 9.72%, reflecting investor concerns about short-term volatility despite promising trial results.
- Regulatory Path Planning: The company plans to meet with the FDA in the first half of 2026 to discuss an accelerated approval pathway for SGT-003, a move that could significantly impact its market position, with further updates expected in mid-2026.
- Market Performance Analysis: Solid Biosciences shares are currently priced at $7.38, trading 18.9% above the 20-day simple moving average, but with an RSI of 70.01 indicating overbought conditions, suggesting potential short-term correction risks ahead.
See More
Solid Biosciences Shares Drop After Clinical Data Release
- Clinical Trial Data Released: Solid Biosciences announced interim data from its ongoing SGT-003 trial, indicating restoration of the dystrophin-associated protein complex as of February 23, suggesting potential efficacy in treating Duchenne muscular dystrophy.
- Good Tolerability: As of March 11, 40 patients had received the one-time intravenous therapy, with the company noting its good tolerability, which enhances confidence in SGT-003's potential to positively impact the disease course of Duchenne.
- Negative Market Reaction: Despite the promising clinical data, SLDB shares fell after the presentation at a medical event, reversing some recent gains attributed to the departure of FDAbiologics CEO Vinay Prasad, reflecting market concerns about the company's outlook.
- Funding Plan: Solid Biosciences announced a $240 million private placement to support further development and clinical trials of SGT-003, indicating the company's strategic intent to invest in its future despite stock volatility.
See More
FDA CBER Head Dr. Vinay Prasad to Depart, Impact on Moderna and Rare Disease Stocks
- Leadership Change: Dr. Vinay Prasad, head of the FDA's Center for Biologics Evaluation and Research, confirmed his departure in April, prompting market interest, particularly as Moderna's stock rises due to his controversial drug review decisions.
- Positive Market Reaction: Analyst from William Blair noted that investors are optimistic about Prasad's exit, believing it will benefit regulatory approvals for rare disease drugs, especially those utilizing single-arm studies and external controls.
- Potential Gains for Moderna: With Prasad's departure, Moderna's mRNA-1010 vaccine could qualify for full approval in adults aged 65 and older, potentially sparing the company from conducting an additional costly vaccine efficacy study.
- Stock Price Increases: Following the news of Prasad's resignation, stocks of Solid Biosciences and Capricor Therapeutics rose by 12.15% and 9.07%, respectively, indicating increased market confidence in rare disease treatments.
See More
Relmada Therapeutics Shares Surge 40.8% on Promising Trial Data
- Market Decline: U.S. stocks fell broadly on Monday, with the Dow Jones index dropping around 650 points, indicating investor concerns about economic outlook which may impact consumer spending and overall market confidence.
- Relmada Stock Surge: Shares of Relmada Therapeutics Inc. soared 40.8% to $6.27 during Monday's session, driven by the release of promising interim data from its Phase 2 trial of NDV-01 for treating non-muscle invasive bladder cancer.
- Clinical Trial Results: The 12-month interim data revealed a complete response rate of 76%, with an impressive 80% in the BCG-unresponsive patient population, providing strong support for Relmada's treatment approach and potentially enhancing market acceptance.
- Positive Market Reaction: The favorable feedback from clinical data has led to optimistic investor sentiment regarding Relmada's future prospects, not only boosting the company's stock price but also likely attracting more investor interest in its ongoing research and development efforts.
See More
Marvell Technology Surges After Strong Q4 Earnings Report
- Strong Earnings Report: Marvell Technology reported fourth-quarter revenue of $2.22 billion, slightly exceeding the market consensus of $2.21 billion, indicating robust performance in the semiconductor sector and reinforcing its market position.
- Earnings Beat Expectations: Adjusted earnings came in at $0.80 per share, surpassing the expected $0.79, demonstrating significant progress in cost control and operational efficiency, which enhances investor confidence.
- Significant Stock Surge: Following the positive earnings report, Marvell's stock price jumped 18.4% to $89.56 during Friday's trading session, reflecting optimistic market expectations regarding the company's future growth potential.
- Positive Market Reaction: Despite a broader market decline with the Dow Jones index falling around 500 points, Marvell's strong earnings attracted investor attention, showcasing its resilience in an uncertain market environment.
See More
Solid Biosciences Secures $240 Million Private Placement
- Financing Size: Solid Biosciences has entered into a securities purchase agreement for approximately $240 million in a private placement, selling 14.97 million shares at $5.61 each, indicating strong market confidence in its future prospects.
- Pre-Funded Warrant Option: Investors have the option to purchase up to 27.80 million shares through pre-funded warrants priced at $5.609 each, with an exercise price of just $0.001, providing flexible investment choices that may attract more participants.
- Use of Proceeds: The net proceeds from this financing will be allocated to ongoing pipeline development programs, business development activities, and general corporate purposes, highlighting the company's strategic focus on expanding its R&D and market initiatives.
- Market Reaction: Following the private placement announcement, Solid Biosciences' stock rose 10.87% in pre-market trading to $6.22, reflecting positive investor sentiment regarding the company's growth potential.
See More
