Biotech and Medtech Stocks Surge in After-Hours Trading for Major Companies
Surge in Healthcare Stocks: On September 12, several healthcare and biotech stocks, including Penumbra, Check-Cap, Adaptimmune Therapeutics, and NewAmsterdam Pharma, saw significant after-hours trading gains, driven by strategic announcements and clinical milestones, despite some movements occurring without direct news.
Penumbra's Stock Performance: Penumbra Inc. experienced a rebound in after-hours trading, rising 6.28% to $289.86, following a decline during regular hours. The company raised its full-year revenue guidance and appointed a new president, indicating confidence in its growth trajectory.
Check-Cap's Merger Announcement: Check-Cap Ltd. saw its stock soar by 191.22% after announcing a merger with MBody AI, which aims to enhance its colorectal cancer screening technology with AI capabilities, potentially transforming its strategic direction.
NewAmsterdam Pharma's Regulatory Progress: NewAmsterdam Pharma's shares rose 8.23% after-hours, driven by positive investor sentiment regarding its lead candidate obicetrapib and recent regulatory milestones, including accepted Marketing Authorization Applications by the EMA and promising trial data related to Alzheimer's disease biomarkers.
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- Strong Performance: Boston Scientific reported a 16% increase in sales and a 14% rise in adjusted EPS for Q4, exceeding Wall Street expectations and showcasing robust performance in cardiovascular and med-surg technologies.
- Market Reaction: Despite impressive earnings, the company's slightly lower guidance for Q1 and 2026 led to a 16% drop in stock price, reflecting the market's high expectations for future growth.
- Core Business Growth: The cardiovascular segment saw an 18% sales increase, while the med-surg unit grew revenue by 12%, achieving over 12% sales growth in every geography covered, indicating strong performance across markets.
- Future Outlook: Projected sales growth of 11.25% in 2026 and a forecasted $4.2 billion in free cash flow highlight the company's ongoing innovation and investment potential, suggesting that despite short-term stock fluctuations, the long-term growth outlook remains positive.
- Significant Sales Growth: Boston Scientific achieved net sales of $5.286 billion in Q4 2025, representing a 15.9% increase, with an organic growth rate of 12.7%, indicating strong market demand and competitiveness in the medical technology sector.
- Improved Profitability: The company reported GAAP net income of $672 million in Q4, translating to an EPS of $0.45, a notable increase from $566 million and $0.38 a year ago, reflecting successful cost control and operational efficiency.
- Strong Annual Performance: For the full year 2025, net sales reached $20.074 billion, up 19.9% with an organic growth rate of 15.8%, demonstrating the company's ongoing expansion and innovation capabilities in the global market.
- Optimistic Future Outlook: The company projects net sales growth of 10.5% to 11.5% for 2026, with adjusted EPS expected to be between $3.43 and $3.49, showcasing management's confidence in future performance and market potential.
- Sales Growth: Boston Scientific achieved net sales of $5.286 billion in Q4 2025, representing a 15.9% increase, exceeding the company's guidance of 14.5% to 16.5%, indicating strong market demand and product innovation capabilities.
- Profit Improvement: The company reported GAAP net income of $672 million, or $0.45 per share, compared to $566 million and $0.38 a year ago, reflecting a significant enhancement in profitability that boosts investor confidence.
- Strong Annual Performance: For the full year 2025, net sales reached $20.074 billion, growing 19.9%, with adjusted EPS of $3.06, a 22% increase from the previous year, showcasing the company's sustained leadership in the medical technology sector.
- Optimistic Outlook: The company projects net sales growth of 10.5% to 11.5% for 2026, with adjusted EPS expected between $3.43 and $3.49, indicating management's confidence in future performance and market potential.
- Legal Investigation Initiated: Halper Sadeh LLC is investigating RAPT Therapeutics, Inc. (NASDAQ: RAPT) regarding its sale to GSK plc for $58.00 per share, potentially violating fiduciary duties to shareholders and impacting shareholder rights.
- Shareholder Rights Protection: The transaction between Penumbra, Inc. (NYSE: PEN) and Boston Scientific Corporation involves $374.00 in cash or 3.8721 shares of Boston Scientific common stock per share, with Halper Sadeh LLC potentially seeking increased consideration and additional disclosures for shareholders.
- Cash and Stock Transaction: Calavo Growers, Inc. (NASDAQ: CVGW) is selling to Mission Produce, Inc. for $14.85 in cash and 0.9790 shares of Mission stock per share, prompting Halper Sadeh LLC to assess the potential impact of this transaction on shareholders.
- Management Transaction Review: FONAR Corporation (NASDAQ: FONR) is involved in a transaction with its CEO and certain executives for $19.00 per share for Class B common stock and $6.34 per share for Class C common stock, with Halper Sadeh LLC possibly advocating for enhanced shareholder rights.
- RAPT Acquisition Investigation: RAPT Therapeutics is set to be acquired by GlaxoSmithKline for $58 per share, totaling an estimated equity value of $2.2 billion, with investigations focusing on whether the board failed to conduct a fair process, potentially impacting shareholder rights.
- Calavo Merger Details: Calavo Growers will be acquired by Mission Produce, with shareholders receiving $27 per share, including $14.85 in cash and 0.9790 shares of Mission, valuing the transaction at approximately $430 million, while investigations examine if the board breached fiduciary duties to shareholders.
- Penumbra Acquisition Status: Penumbra will be acquired by Boston Scientific in a deal valuing the company at $374 per share, reflecting an enterprise value of about $14.5 billion, with investigations looking into whether the board ensured a fair process, potentially affecting shareholder interests.
- FONAR Merger Investigation: FONAR Corporation is to be acquired by FONAR, LLC for $19 per share in an all-cash transaction, with investigations questioning whether the board failed to conduct a fair process, which could impact shareholder rights.
- Investigation Focus: Halper Sadeh LLC is investigating Nathan’s Famous, Inc. (NASDAQ: NATH) for potential violations related to its sale to Smithfield Foods, Inc. for $102.00 per share in cash, aiming to protect shareholder rights and seek increased compensation.
- Transaction Details: Penumbra, Inc. (NYSE: PEN) is being sold for $374.00 in cash or 3.8721 shares of Boston Scientific common stock, with Halper Sadeh LLC potentially advocating for more information and compensation to ensure transaction transparency for shareholders.
- Legal Rights: RAPT Therapeutics, Inc. (NASDAQ: RAPT) is selling to GSK plc for $58.00 per share, and Halper Sadeh LLC encourages shareholders to reach out to understand their legal rights and options, ensuring their interests are safeguarded in the transaction.
- Shareholder Support: Lisata Therapeutics, Inc. (NASDAQ: LSTA) is being sold for $4.00 per share in cash plus two non-tradeable rights, with Halper Sadeh LLC offering contingent fee legal services to help shareholders secure their rightful interests in the potential transaction.











