Rock Springs Capital ISRG Position
Active8-Fund ConvergenceRock Springs Capital held their position in Intuitive Surgical Inc. (ISRG) in Q4 2025, holding $46.4M worth of shares across 82,000 shares.
The position was first reported in Q1 2023 and has been tracked across 12 quarterly 13F filings.
ISRG is a convergence signal: 8 specialist biotech funds hold this stock, suggesting high institutional conviction.
There is an upcoming Phase 3 readout for filricianine in 379 days (Apr 30, 2027), making the timing of Rock Springs's position particularly relevant.
About Intuitive Surgical Inc.
Intuitive Surgical, Inc. develops, manufactures, and markets products that enable physicians and healthcare providers to enhance the quality of and access to minimally invasive care in the United States and internationally. The company offers the da Vinci Surgical System to enable complex surgery using a minimally invasive approach; and Ion endoluminal system, which extends its commercial offerings beyond surgery into diagnostic procedures enabling minimally invasive biopsies in the lung. It also provides a suite of stapling, energy, and core instrumentation for its surgical systems; progressive learning pathways to support the use of its technology; a complement of services to its customers, including support, installation, repair, and maintenance; and integrated digital capabilities providing unified and connected offerings, streamlining performance for hospitals with program-enhancing insights. The company was incorporated in 1995 and is headquartered in Sunnyvale, California.
Full company profile →Short Interest
1.8%
3.9 days to cover
Rock Springs Capital ISRG Position History
| Quarter | Action | Shares | Change | Value |
|---|---|---|---|---|
| Q4 2025 | Held | 82,000 | — | $46.4M |
| Q3 2025 | Held | 82,000 | — | $36.7M |
| Q2 2025 | Decreased | 82,000 | -20,000 | $44.6M |
| Q1 2025 | Decreased | 102,000 | -114,000 | $50.5M |
| Q4 2024 | Decreased | 216,000 | -54,000 | $112.7M |
| Q3 2024 | Decreased | 270,000 | -28,500 | $132.6M |
| Q2 2024 | Held | 298,500 | — | $132.8M |
| Q1 2024 | Held | 298,500 | — | $119.1M |
| Q4 2023 | Held | 298,500 | — | $100.7M |
| Q3 2023 | Held | 298,500 | — | $87.2M |
| Q2 2023 | Held | 298,500 | — | $102.1M |
| Q1 2023 | New | 298,500 | +298,500 | $76.3M |
Frequently Asked Questions
Does Rock Springs Capital own ISRG?
Yes. As of Q4 2025, Rock Springs Capital holds 82,000 shares of Intuitive Surgical Inc. (ISRG) valued at $46.4M. This data comes from their SEC 13F filing.
How many hedge funds own ISRG?
8 specialist biotech hedge funds currently hold ISRG, including OrbiMed Advisors, RTW Investments, Perceptive Advisors and 4 more. When 3 or more specialist funds hold the same stock, BiotechEdge flags it as a convergence signal.
When did Rock Springs Capital first buy ISRG?
Rock Springs Capital's position in ISRG 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 Rock Springs Capital's ISRG position increasing or decreasing?
Rock Springs Capital held their ISRG position unchanged in the most recent quarter.
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