INTUITIVE SURGICAL INC (ISRG) Institutional Buying Activity
Institutional investors tracked by InsiderSet increased exposure to INTUITIVE SURGICAL INC (ISRG) during the quarter ended June 30, 2026 through a combination of new purchases and expanded existing positions disclosed in SEC Form 13F filings.
The largest institutional buyer of ISRG during the latest reporting period was Polen Capital Management, which increased its reported ISRG position by approximately $475.02M based on quarter-end filing values. Several additional hedge funds and long-term asset managers also reported meaningful increases in ISRG exposure during the quarter.
Institutional buying activity can provide insight into investor conviction, sector allocation trends, and smart money positioning toward INTUITIVE SURGICAL INC (ISRG). InsiderSet tracks quarterly accumulation trends, new institutional positions, ownership increases, and estimated performance of newly disclosed holdings using SEC filing data and recent market prices.
The investors highlighted on this page collectively added approximately $880.79M in reported ISRG exposure during the latest filing period, reflecting continued institutional interest in INTUITIVE SURGICAL INC's growth initiatives and strategic positioning.
| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q2 2026 | Parnassus Endeavor Fund | Buy | 183 | 4,701 | $1,869,494 |
| Q1 2026 | Mairs & Power Growth Fund | Buy | 37,608 | 99,885 | $46,045,986 |
| Q1 2026 | ARK Invest | Buy | 19,893 | 68,991 | $31,804,161 |
| Q1 2026 | Parnassus Endeavor Fund | Buy | 1,431 | 4,518 | $2,082,752 |
| Q1 2026 | Sequoia Financial Advisors | Buy | 178 | 11,359 | $5,236,236 |
| Q4 2025 | Polen Capital Management | Buy | 838,721 | 842,618 | $477,224,970 |
| Q4 2025 | Mairs & Power Growth Fund | Buy | 62,277 | 62,277 | $35,271,202 |
| Q4 2025 | ARK Invest | Buy | 19,286 | 49,098 | $27,807,143 |
| Q4 2025 | Sequoia Financial Advisors | Buy | 2,083 | 11,181 | $6,332,530 |
| Q4 2025 | Disciplined Growth Investors | Buy | 946 | 110,426 | $62,540,869 |
| Q4 2025 | Parnassus Endeavor Fund | Buy | 298 | 3,087 | $1,748,353 |
| Q3 2025 | Renaissance Technologies LLC | Buy | 80,000 | 194,530 | $86,999,652 |
| Q3 2025 | ARK Invest | Buy | 9,470 | 29,812 | $13,332,821 |
| Q3 2025 | Parnassus Endeavor Fund | Buy | 77 | 2,789 | $1,247,325 |
| Q2 2025 | Sequoia Financial Advisors | Buy | 1,097 | 9,684 | $5,262,644 |
| Q2 2025 | ARK Invest | Buy | 507 | 20,342 | $11,054,046 |
| Q2 2025 | Parnassus Endeavor Fund | Buy | 403 | 2,712 | $1,473,728 |
| Q1 2025 | Renaissance Technologies LLC | Buy | 106,900 | 114,530 | $56,723,273 |
| Q1 2025 | ARK Invest | Buy | 385 | 19,835 | $9,823,680 |
| Q1 2025 | Sequoia Financial Advisors | Buy | 27 | 8,587 | $4,252,770 |
| Q4 2024 | Sequoia Financial Advisors | Buy | 942 | 8,560 | $4,467,858 |
| Q4 2024 | Parnassus Endeavor Fund | Buy | 185 | 2,318 | $1,209,904 |
| Q3 2024 | Disciplined Growth Investors | Buy | 861 | 248,208 | $121,937,144 |
| Q3 2024 | Parnassus Endeavor Fund | Buy | 574 | 2,133 | $1,047,879 |
| Q3 2024 | Sequoia Financial Advisors | Buy | 308 | 7,618 | $3,742,255 |
| Q2 2024 | Parnassus Endeavor Fund | Buy | 497 | 1,559 | $693,521 |
| Q2 2024 | Sequoia Financial Advisors | Buy | 417 | 7,310 | $3,251,636 |
| Q1 2024 | Parnassus Endeavor Fund | Buy | 1,062 | 1,062 | $423,834 |
| Q4 2023 | Viking Global Investors | Buy | 290,501 | 931,484 | $314,245,442 |
| Q4 2023 | ARK Invest | Buy | 4,672 | 41,789 | $14,097,937 |
Frequently asked questions about ISRG activity
Which institutional owners are buying ISRG?
Institutional owners buying ISRG include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in ISRG activity?
"Buy" means an investor increased their reported position in ISRG compared to the prior reporting period. This reflects growing exposure to INTUITIVE SURGICAL INC (ISRG) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in ISRG increasing?
Institutional interest in ISRG can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.