Boston Scientific announces agreement to acquire Penumbra, Inc.
Rhea-AI Summary
Boston Scientific (NYSE: BSX) agreed to acquire Penumbra (NYSE: PEN) in a cash-and-stock deal valuing Penumbra at $374 per share, implying an enterprise value of about $14.5 billion. Consideration is ~73% cash and ~27% stock, with a 3.8721 BSX share election per PEN share. Penumbra expects 2025 reported revenue of ~$1.4 billion (growth ~17.3%–17.5%) and Q4 growth ~21.4%–22.0%. Boston Scientific plans to finance roughly $11 billion of the cash portion with cash on hand and new debt. The deal is expected to close in 2026, subject to approvals, and to be mildly dilutive to adjusted EPS by $0.06–0.08 in year one, turning neutral/acc-retive thereafter.
Positive
- Acquisition values Penumbra at $374 per share
- Transaction enterprise value approximately $14.5 billion
- Penumbra 2025 reported revenue projected at $1.4 billion
- Deal structure ~73% cash and ~27% stock
- Strategic entry into mechanical thrombectomy and neurovascular
Negative
- Boston Scientific to finance ~$11 billion cash portion
- Expected $0.06–0.08 dilution to adjusted EPS in year one
- GAAP EPS expected to be dilutive first year due to amortization
News Market Reaction
On the day this news was published, BSX declined 3.96%, reflecting a moderate negative market reaction. Argus tracked a trough of -2.9% from its starting point during tracking. Our momentum scanner triggered 12 alerts that day, indicating notable trading interest and price volatility. This price movement removed approximately $5.73B from the company's valuation, bringing the market cap to $138.96B at that time.
Data tracked by StockTitan Argus on the day of publication.
Key Figures
Market Reality Check
Peers on Argus
Ahead of this acquisition news, BSX was down 0.42% while key peers like SYK, MDT, ABT and PHG were up between 0.84% and 2.5%, and EW was roughly flat, pointing to a stock-specific setup rather than a sector-wide move.
Historical Context
| Date | Event | Sentiment | Move | Catalyst |
|---|---|---|---|---|
| Jan 12 | Acquisition agreement | Positive | -2.0% | Valencia Technologies deal to expand urology and pelvic health portfolio. |
| Jan 02 | Conference schedule | Neutral | -0.7% | JP Morgan conference appearance and Q4/FY 2025 call timing details. |
| Dec 10 | Management/governance | Neutral | +0.2% | Chairman appointment and ECGenius System Version 3.5 release at affiliate. |
| Nov 03 | Investor conferences | Neutral | -2.1% | Participation in late-2025 healthcare investor conferences with webcast access. |
| Oct 22 | Earnings report | Positive | +4.0% | Strong Q3 2025 sales growth and EPS beats across core segments. |
Recent history shows positive reactions to earnings but mixed to negative reactions around acquisition announcements, with the latest deal for Valencia Technologies seeing a -1.97% move despite strategic rationale.
Over the past few months, Boston Scientific has combined strong fundamentals with active M&A. In Q3 2025 it delivered net sales of $5.065B and beat EPS guidance, prompting a 3.95% gain. Since then, the company announced multiple portfolio-expanding acquisitions, including SoniVie, Nalu Medical and Valencia Technologies, often with slight EPS dilution initially. Today’s Penumbra deal continues this acquisitive strategy, further scaling cardiovascular and neurovascular exposure on top of earlier bolt-on transactions.
Market Pulse Summary
This announcement outlines a sizable cash-and-stock acquisition that would add Penumbra’s fast-growing thrombectomy and neurovascular franchise to Boston Scientific. The deal values Penumbra at $374 per share and implies a $14.5B enterprise value, with about $11B paid in cash and initial $0.06–$0.08 adjusted EPS dilution. Investors may track regulatory approvals, closing timing, integration milestones and whether Penumbra’s projected $1.4B revenue base maintains double‑digit growth post-close.
Key Terms
mechanical thrombectomy medical
neurovascular medical
pulmonary embolism medical
aneurysms medical
enterprise value financial
volume weighted average price financial
AI-generated analysis. Not financial advice.
Acquisition to expand Boston Scientific's cardiovascular portfolio and further address increasing prevalence of vascular diseases
Provides scaled entry into mechanical thrombectomy and neurovascular, key strategic adjacencies
Conference call at 8:00 a.m. ET to discuss details of the transaction
"Penumbra is a well-established company with an experienced, high-performing team and this acquisition offers Boston Scientific an opportunity to enter new, fast-growing segments within the vascular space," said Mike Mahoney, chairman and chief executive officer, Boston Scientific. "I'm thrilled to combine the talents and shared values of our teams – including welcoming Penumbra's chairman and chief executive officer, Adam Elsesser, to our board of directors upon close. The addition of Penumbra can expand access for these novel technologies to more patients and customers around the world, further enhancing our revenue and margins over time with proven offerings that have a history of growth and innovation."
Cardiovascular diseases are the leading cause of death globallyii and include disorders of the heart and blood vessels that can restrict blood flow and increase the risk of clots throughout the body. To address the escalating prevalence of these complex diseases, Penumbra has developed a comprehensive portfolio that includes differentiated devices to treat conditions such as pulmonary embolism, stroke, deep vein thrombosis, acute limb ischemia, heart attack and aneurysms.
Penumbra offers innovative mechanical thrombectomy products for use in peripheral vascular procedures to remove blood clots causing blockages in arterial, venous and pulmonary vessels, including the Lightning Bolt® and Lightning Flash® computer assisted vacuum thrombectomy (CAVT™) systems. The company's vascular portfolio also includes a minimally invasive peripheral embolization system, which is designed to stop blood flow to control hemorrhaging and bleeding or to close blood vessels.
Neurovascular offerings from Penumbra currently include differentiated solutions for access, stroke revascularization and neuro embolization. The company is continuing to innovate in these areas and add meaningful clinical evidence to support expanded access for more patients worldwide.
"Our decades-long development of therapies for challenging medical conditions has focused on deep innovation for complex diseases so that we can offer physicians novel solutions to transform patient care," said Adam Elsesser. "I am grateful for the amazing people who have contributed to this work and look forward to uniting our efforts and shared values as we come together with Boston Scientific."
Penumbra expects to deliver fourth quarter reported revenue growth in the range of approximately
Under the terms of the agreement, which has been approved by the board of directors of each company, the transaction values each Penumbra share at
Boston Scientific expects to finance the approximately
The transaction is expected to be completed in 2026, subject to receipt of Penumbra's stockholder approval and the satisfaction of other customary closing conditions.
Boston Scientific will be discussing this announcement on a conference call today at 8:00 a.m. ET, which can be accessed on the Events and Presentations section of the Boston Scientific investor relations website along with additional information about this transaction.
Allen Overy Shearman & Sterling LLP and Arnold & Porter Kaye Scholer LLP are serving as legal advisors to Boston Scientific.
Perella Weinberg Partners is serving as exclusive financial advisor to Penumbra and Davis Polk & Wardwell LLP is serving as legal advisor.
About Boston Scientific
Boston Scientific transforms lives through innovative medical technologies that improve the health of patients around the world. As a global medical technology leader for more than 45 years, we advance science for life by providing a broad range of high-performance solutions that address unmet patient needs and reduce the cost of healthcare. Our portfolio of devices and therapies helps physicians diagnose and treat complex cardiovascular, respiratory, digestive, oncological, neurological and urological diseases and conditions. Learn more at www.bostonscientific.com and follow us on LinkedIn.
About Penumbra
Penumbra, Inc., the world's leading thrombectomy company, is focused on developing the most innovative technologies for challenging medical conditions such as ischemic stroke, venous thromboembolism such as pulmonary embolism, and acute limb ischemia. Our broad portfolio, which includes computer assisted vacuum thrombectomy (CAVT), centers on removing blood clots from head-to-toe with speed, safety and simplicity. By pioneering these innovations, we support healthcare providers, hospitals and clinics in more than 100 countries, working to improve patient outcomes and quality of life. For more information, visit www.penumbrainc.com and connect on Instagram, LinkedIn, and X.
Cautionary Statement Regarding Forward-Looking Statements
This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Forward-looking statements may be identified by words like "anticipate," "expect," "project," "believe," "plan," "estimate," "intend" and similar words. These forward-looking statements are based on our beliefs, assumptions and estimates using information available to us at the time and are not intended to be guarantees of future events or performance. These forward-looking statements include, among other things, statements regarding the financial and business impact of the transaction and anticipated benefits of the transaction, the closing of the transaction and the timing thereof, business plans and strategy, product launches and product performance and impact, clinical programs, and expected financial results. If our underlying assumptions turn out to be incorrect, or if certain risks or uncertainties materialize, actual results could vary materially from the expectations and projections expressed or implied by our forward-looking statements. These factors, in some cases, have affected and in the future (together with other factors) could affect our ability to implement our business strategy and may cause actual results to differ materially from those contemplated by the statements expressed in this press release. As a result, readers are cautioned not to place undue reliance on any of our forward-looking statements.
Factors that may cause such differences include, among other things: economic conditions, including the impact of foreign currency fluctuations; future
Important Information and Where to Find It
In connection with the proposed transaction, Boston Scientific will file with the Securities and Exchange Commission (the "SEC") a registration statement on Form S-4 that will include a proxy statement/prospectus (the "Proxy Statement/Prospectus") for the stockholders of Penumbra, and Penumbra will mail the Proxy Statement/Prospectus to its stockholders and file other documents regarding the proposed transaction with the SEC. This communication is not a substitute for any proxy statement, registration statement, proxy statement/prospectus or other documents Boston Scientific and/or Penumbra may file with the SEC in connection with the proposed transaction. INVESTORS AND SECURITY HOLDERS ARE URGED TO READ CAREFULLY AND IN THEIR ENTIRETY THE PROXY STATEMENT/PROSPECTUS WHEN IT BECOMES AVAILABLE, ANY AMENDMENTS OR SUPPLEMENTS TO THE PROXY STATEMENT/PROSPECTUS, AND OTHER DOCUMENTS FILED BY
No Offer or Solicitation
This communication is for informational purposes only and not intended to and does not constitute an offer to subscribe for, buy or sell, the solicitation of an offer to subscribe for, buy or sell or an invitation to subscribe for, buy or sell any securities or the solicitation of any vote or approval in any jurisdiction pursuant to or in connection with the proposed transaction or otherwise, nor shall there be any sale, issuance or transfer of securities in any jurisdiction in contravention of applicable law. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended, and otherwise in accordance with applicable law.
Participants in the Solicitation
Boston Scientific, Penumbra and certain of their respective directors and executive officers may be deemed to be participants in the solicitation of proxies from Penumbra's stockholders in connection with the proposed transaction. Information regarding Boston Scientific's directors and executive officers, including a description of their respective direct or indirect interests, by security holdings or otherwise, will be set forth in the Joint Proxy Statement/Prospectus and other relevant materials when they are filed with the SEC. These documents (when available) may be obtained free of charge from the SEC's website at www.sec.gov or by accessing the Investor Relations section of the Boston Scientific website at investors.bostonscientific.com. Information regarding the Boston Scientific's directors and executive officers is contained in the sections entitled "Election of Directors" and "Securities Ownership of Director and Executive Officers" included in Boston Scientific's proxy statement for its 2025 annual meeting of stockholders, which was filed with the SEC on March 19, 2025 (and which is available at https://www.sec.gov/ix?doc=/Archives/edgar/data/885725/000088572525000017/bsx-20250319.htm), in the section entitled "Directors, Executive Officers and Corporate Governance" included in Boston Scientific's Annual Report on Form 10-K for the year ended December 31, 2024, which was filed with the SEC on February 18, 2025 (and which is available at https://www.sec.gov/ix?doc=/Archives/edgar/data/885725/000088572525000011/bsx-20241231.htm), in Boston Scientific's Form 8-K filed on April 23, 2025 (and which is available at https://www.sec.gov/ix?doc=/Archives/edgar/data/885725/000088572525000024/bsx-20250418.htm), in Boston Scientific's Form 8-K filed on September 4, 2025 (and which is available at https://www.sec.gov/ix?doc=/Archives/edgar/data/885725/000088572525000043/bsx-20250829.htm), and in the Boston Scientific's Form 8-K filed on October 23, 2025 (and which is available at https://www.sec.gov/ix?doc=/Archives/edgar/data/885725/000088572525000048/bsx-20251022.htm). To the extent holdings of Boston Scientific securities by the directors and executive officers of Boston Scientific have changed from the amounts of securities of Boston Scientific held by such persons as reflected therein, such changes have been or will be reflected on Statements of Change in Ownership on Form 4 filed with the SEC. Information regarding Penumbra's directors and executive officers is contained in the sections entitled ""Proposal No. 1: Election of Directors", "Information Regarding the Board of Directors and Corporate Governance", and "Other Information Related to Penumbra, Its Directors and Executive Officers" included in Penumbra's proxy statement for its 2025 annual meeting of stockholders, filed with the SEC on April 16, 2025 (and which is available at https://www.sec.gov/ix?doc=/Archives/edgar/data/1321732/000132173225000074/pen-20250416.htm), in the section entitled "Directors, Executive Officers and Corporate Governance" included in Penumbra's Annual Report on Form 10-K for the year ended December 31, 2024, which was filed with the SEC on February 18, 2025 (and which is available at https://www.sec.gov/ix?doc=/Archives/edgar/data/1321732/000132173225000012/pen-20241231.htm), and in Penumbra's Form 8-K filed on August 27, 2025 (and which is available at https://www.sec.gov/ix?doc=/Archives/edgar/data/1321732/000132173225000101/pen-20250822.htm). To the extent holdings of Penumbra securities by the directors and executive officers of Penumbra have changed from the amounts of securities of Penumbra held by such persons as reflected therein, such changes have been or will be reflected on Statements of Change in Ownership on Form 4 filed with the SEC.
CONTACTS
Boston Scientific:
Laura Aumann
Media Relations
+1 (651) 582-4251
laura.aumann@bsci.com
Lauren Tengler
Investor Relations
+1 (508) 683-4479
BSXInvestorRelations@bsci.com
Penumbra:
Jennifer Heth
Media Relations
+1 (510) 995-9791
jheth@penumbrainc.com
Jason Mills
Investor Relations
+1 (925) 826-7933
jmills1@penumbrainc.com
i Enterprise value based on 39.2 million common shares outstanding and vesting of shares under Penumbra's equity incentive plans for a total fully diluted share count of approximately 40.0 million shares, implying
ii Cardiovascular diseases (CVDs) (who.int)
iii Penumbra, Inc. (2025). Penumbra, Inc. Provides Preliminary Update on Fourth Quarter and Full Year 2025 Financial Results. https://www.penumbrainc.com/investors/press-releases/.
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SOURCE Boston Scientific Corporation