Intuitive Surgical
ISRG
2,303 hedge funds and large institutions have $139B invested in Intuitive Surgical in 2026 Q1 according to their latest regulatory filings, with 174 funds opening new positions, 991 increasing their positions, 831 reducing their positions, and 245 closing their positions.
19% more repeat investments, than reductions
Existing positions increased: 991 | Existing positions reduced: 831
10% less call options, than puts
Call options by funds: $1.49B | Put options by funds: $1.65B
1.74% less ownership
Funds ownership: 86.26% → 84.51% (-1.7%)
4% less funds holding
Funds holding: 2,411 → 2,303 (-108)
21% less capital invested
Capital invested by funds: $176B → $139B (-$37.1B)
29% less first-time investments, than exits
New positions opened: 174 | Existing positions closed: 245
30% less funds holding in top 10
Funds holding in top 10: 69 → 48 (-21)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$520M |
| 2 |
Two Sigma Investments
New York
|
+$478M |
| 3 |
Holocene Advisors
New York
|
+$446M |
| 4 |
Wellington Management Group
Boston,
Massachusetts
|
+$260M |
| 5 |
JP Morgan Chase
New York
|
+$260M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
JSC
J. Stern & Co
London,
United Kingdom
|
-$1.07B |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
-$557M |
| 3 |
Invesco
Atlanta,
Georgia
|
-$457M |
| 4 |
D.E. Shaw & Co
New York
|
-$369M |
| 5 |
Barclays
London,
United Kingdom
|
-$325M |
ISRG Hedge Fund Activity: Q1 2026 in Review
2,303 of the 8,130 institutional investors tracked by Wall St. Rank reported a position in Intuitive Surgical (ISRG) for Q1 2026, worth a combined $139B — down 21% from $176B a quarter earlier.
Sellers outnumbered buyers: 245 funds closed out of ISRG and 174 opened new positions — a net loss of 71 holders — while 831 trimmed existing stakes and 991 added.
The largest buyer was Arrowstreet Capital, adding an estimated $520M. The largest seller was J. Stern & Co, cutting an estimated $1.07B.
- 2,303 institutional investors held Intuitive Surgical (ISRG) as of Q1 2026, down from 2,411 in Q4 2025.
- Funds reported $139B of Intuitive Surgical stock for Q1 2026, down 21% quarter-over-quarter.
- 174 funds opened new Intuitive Surgical positions in Q1 2026 and 245 closed out, a net change of -71 holders.
- The largest Intuitive Surgical buyer in Q1 2026 was Arrowstreet Capital, an estimated $520M added.
- The largest Intuitive Surgical seller in Q1 2026 was J. Stern & Co, an estimated $1.07B sold.
Based on aggregated 13F filings for Q1 2026.