Intuitive Surgical
ISRG
2,322 hedge funds and large institutions have $139B invested in Intuitive Surgical in 2026 Q1 according to their latest regulatory filings, with 179 funds opening new positions, 999 increasing their positions, 833 reducing their positions, and 246 closing their positions.
20% more repeat investments, than reductions
Existing positions increased: 999 | Existing positions reduced: 833
0.98% less ownership
Funds ownership: 85.52% → 84.54% (-0.98%)
4% less funds holding
Funds holding: 2,419 → 2,322 (-97)
11% less call options, than puts
Call options by funds: $1.49B | Put options by funds: $1.67B
20% less capital invested
Capital invested by funds: $173B → $139B (-$34.8B)
27% less first-time investments, than exits
New positions opened: 179 | Existing positions closed: 246
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 |
Fidelity Investments
Boston,
Massachusetts
|
-$557M |
| 2 |
Invesco
Atlanta,
Georgia
|
-$457M |
| 3 |
D.E. Shaw & Co
New York
|
-$369M |
| 4 |
Barclays
London,
United Kingdom
|
-$325M |
| 5 |
Millennium Management
New York
|
-$292M |
ISRG Hedge Fund Activity: Q1 2026 in Review
2,322 of the 8,207 institutional investors tracked by Wall St. Rank reported a position in Intuitive Surgical (ISRG) for Q1 2026, worth a combined $139B — down 20% from $173B a quarter earlier.
Sellers outnumbered buyers: 246 funds closed out of ISRG and 179 opened new positions — a net loss of 67 holders — while 833 trimmed existing stakes and 999 added.
The largest buyer was Arrowstreet Capital, adding an estimated $520M. The largest seller was Fidelity Investments, cutting an estimated $557M.
- 2,322 institutional investors held Intuitive Surgical (ISRG) as of Q1 2026, down from 2,419 in Q4 2025.
- Funds reported $139B of Intuitive Surgical stock for Q1 2026, down 20% quarter-over-quarter.
- 179 funds opened new Intuitive Surgical positions in Q1 2026 and 246 closed out, a net change of -67 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 Fidelity Investments, an estimated $557M sold.
Based on aggregated 13F filings for Q1 2026.