Redmile Group BSX Position
Exited6-Fund ConvergenceRedmile Group exited their position in BOSTON SCIENTIFIC CORP (BSX) in Q3 2025, after holding the stock for 11 quarters.
The position was first reported in Q1 2023 and has been tracked across 11 quarterly 13F filings.
BSX is a convergence signal: 6 specialist biotech funds hold this stock, suggesting high institutional conviction.
There is an upcoming Phase 2 readout in 46 days (Jun 1, 2026), making the timing of Redmile's position particularly relevant.
About BOSTON SCIENTIFIC CORP
Boston Scientific Corporation develops, manufactures, and markets medical devices for use in various interventional medical specialties worldwide. It operates through three segments: MedSurg, Rhythm and Neuro, and Cardiovascular. The company offers devices to diagnose and treat gastrointestinal and pulmonary conditions; devices to treat various urological and pelvic conditions; implantable cardioverter and implantable cardiac resynchronization therapy defibrillators; pacemakers and implantable cardiac resynchronization therapy pacemakers; and remote patient management systems. It also provides medical technologies to diagnose and treat rate and rhythm disorders of the heart comprising 3-D cardiac mapping and navigation solutions, ablation catheters, diagnostic catheters, mapping catheters, intracardiac ultrasound catheters, delivery sheaths, and other accessories; spinal cord stimulator systems for the management of chronic pain; indirect decompression systems; and deep brain stimulation systems. In addition, the company offers interventional cardiology products, including drug-eluting coronary stent systems used in the treatment of coronary artery disease; percutaneous coronary interventions products to treat atherosclerosis; intravascular catheter-directed ultrasound imaging catheters, fractional flow reserve devices, and systems for use in coronary arteries and heart chambers, as well as various peripheral vessels; and structural heart therapies. Further, it provides stents, balloon catheters, wires, and atherectomy systems to treat arterial diseases; thrombectomy and acoustic pulse thrombolysis systems, wires, and stents to treat venous diseases; and peripheral embolization devices, radioactive microspheres, ablation systems, cryotherapy ablation systems, and micro and drainage catheters to treat cancer. The company was incorporated in 1979 and is headquartered in Marlborough, Massachusetts.
Full company profile →Short Interest
1.6%
1.6 days to cover
Redmile Group BSX Position History
| Quarter | Action | Shares | Change | Value |
|---|---|---|---|---|
| Q3 2025 | Exited | 0 | -85,301 | $0 |
| Q2 2025 | Decreased | 85,301 | -107,982 | $9.2M |
| Q1 2025 | Decreased | 193,283 | -119,400 | $19.5M |
| Q4 2024 | Decreased | 312,683 | -18,190 | $27.9M |
| Q3 2024 | Decreased | 330,873 | -59,380 | $27.7M |
| Q2 2024 | Decreased | 390,253 | -170,673 | $30.1M |
| Q1 2024 | Decreased | 560,926 | -132,274 | $38.4M |
| Q4 2023 | Decreased | 693,200 | -81,000 | $40.1M |
| Q3 2023 | Increased | 774,200 | +383,022 | $40.9M |
| Q2 2023 | Increased | 391,178 | +219,398 | $21.2M |
| Q1 2023 | New | 171,780 | +171,780 | $8.6M |
Frequently Asked Questions
Does Redmile Group own BSX?
No. Redmile Group exited their position in BOSTON SCIENTIFIC CORP (BSX) in Q3 2025. They previously held the stock for 11 quarters.
How many hedge funds own BSX?
6 specialist biotech hedge funds currently hold BSX, including OrbiMed Advisors, Perceptive Advisors, Rock Springs Capital and 3 more. When 3 or more specialist funds hold the same stock, BiotechEdge flags it as a convergence signal.
When did Redmile Group first buy BSX?
Redmile Group's position in BSX was first reported in Q1 2023. 13F filings are reported with a 45-day delay, so the actual purchase may have occurred earlier in the quarter.
Is Redmile Group's BSX position increasing or decreasing?
Redmile Group completely exited their BSX position in the most recent quarter.
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