Which funds own ISRG
Intuitive Surgical Inc in the Q2 2026 filings. At least 20 of the 91 current managers on file reported a position, worth $21.8bn between them. At least a fifth of the current managers on file hold it, which is a crowd without being the whole market. Buying and selling roughly cancelled this quarter, which is what a name looks like when the argument is still live.
- Managers holding
- 20
- at least, of 91 current
- Combined value
- $21.8bn
- as reported
- Opened
- 2
- new this quarter
- Added to
- 9
- already held
- Trimmed or sold out
- 13
- 4 sold out entirely
Only each manager’s largest 200 positions are listed here, so a smaller holder may be missing.
Managers reporting a position
Largest first. Weight is the share of that manager’s whole reported book, which is the number worth quoting: $400m is a rounding error in one book and a defining bet in another.
| Manager | Value | Weight | Shares | Change on the quarter | Action |
|---|---|---|---|---|---|
| Invesco Ltd Long-only · $1264bn book | $4.7bn | 0.4% | 11,843,563 | -$449m+653,078 | Added |
| T. Rowe Price Associates Inc Long-only · $999bn book | $4.5bn | 0.4% | 11,256,570 | -$1.3bn-1,263,437 | Trimmed |
| Capital World Investors Long-only · $846bn book | $3.1bn | 0.4% | 7,742,681 | -$631m-305,329 | Trimmed |
| AllianceBernstein LP Long-only · $302bn book | $1.7bn | 0.6% | 3,632,766 | -$485m-179,897 | Trimmed |
| Wellington Management Group LLP Long-only · $580bn book | $1.5bn | 0.3% | 3,802,003 | -$313m-157,287 | Trimmed |
| Arrowstreet Capital LP Quantitative · $225bn book | $1.5bn | 0.7% | 3,744,497 | +$519m+1,638,953 | Added |
| Baillie Gifford & Co Long-only · $110bn book | $1.0bn | 0.9% | 2,524,427 | -$180m-43,138 | Trimmed |
| Two Sigma Investments LP Quantitative · $138bn book | $787m | 0.6% | 1,979,128 | +$139m+573,794 | Added |
| Janus Henderson Group Ltd Long-only · $245bn book | $759m | 0.3% | 1,908,424 | +$1.4m+265,364 | Added |
| Capital Research Global Investors Long-only · $717bn book | $617m | 0.1% | 1,551,664 | +$172m+585,025 | Added |
| Coatue Management LLC Long/short equity · $48.6bn book | $316m | 0.6% | 793,704 | -$79m-61,521 | Trimmed |
| Holocene Advisors LP Long/short equity · $44.4bn book | $311m | 0.7% | 781,465 | -$169m-258,720 | Trimmed |
| Squarepoint Ops LLC Multi-strategy · $90.5bn book | $296m | 0.3% | 745,189 | +$187m+506,935 | Added |
| D1 Capital Partners LP Long/short equity · $34.8bn book | $228m | 0.7% | 574,200 | opened574,200 | New |
| Renaissance Technologies LLC Quantitative · $72.6bn book | $201m | 0.3% | 504,430 | +$136m+365,028 | Added |
| Polen Capital Management LLC Long-only · $11.6bn book | $178m | 1.5% | 447,944 | -$102m-158,882 | Trimmed |
| Hudson Bay Capital Management LP Multi-strategy · $36.8bn book | $130m | 0.4% | 327,000 | +$84m+227,000 | Added |
| ARK Investment Management LLC Long-only · $15.4bn book | $28m | 0.2% | 70,375 | -$3.8m+1,384 | Added |
| ExodusPoint Capital Management LP Multi-strategy · $15.5bn book | $23m | 0.1% | 58,017 | -$18m-31,023 | Trimmed |
| Quantbot Technologies LP Quantitative · $2.5bn book | $7.2m | 0.3% | 18,216 | opened18,216 | New |
Sold out of this quarter
Valued at what the position was worth in the previous filing, because by this one it is gone.
- Freestone Grove Partners LP · Multi-strategy$109m held before
- Artisan Partners LP · Long-only$37m held before
- Davidson Kempner Capital Management LP · Long/short equity$3.6m held before
- Dodge & Cox · Value$200k held before
Ownership through time
At least 35 of the 95 managers whose filings are on file listed ISRG in Q2 2026, against 15 in Q2 2013. 5 managers fewer than in Q1 2026: 2 started positions; 2 listed it again; 4 sold out, by their own filings; 5 no longer listed it among the positions read, which can mean a holding below the listed range, a filing that reported no holdings, or a filing not yet made.
Each manager’s largest 500 positions a quarter are read, so a small holding in a very large book can be missing, and a manager is counted as leaving only where its own filing shows it.
- Q2 2013: 15
- Q3 2013: 16
- Q4 2013: 15
- Q1 2014: 15
- Q2 2014: 13
- Q3 2014: 16
- Q4 2014: 14
- Q1 2015: 14
- Q2 2015: 15
- Q3 2015: 21
- Q4 2015: 18
- Q1 2016: 19
- Q2 2016: 18
- Q3 2016: 21
- Q4 2016: 22
- Q1 2017: 20
- Q2 2017: 19
- Q3 2017: 23
- Q4 2017: 22
- Q1 2018: 27
- Q2 2018: 28
- Q3 2018: 23
- Q4 2018: 25
- Q1 2019: 21
- Q2 2019: 14
- Q3 2019: 17
- Q4 2019: 22
- Q1 2020: 18
- Q2 2020: 16
- Q3 2020: 20
- Q4 2020: 19
- Q1 2021: 26
- Q2 2021: 33
- Q3 2021: 31
- Q4 2021: 34
- Q1 2022: 27
- Q2 2022: 35
- Q3 2022: 32
- Q4 2022: 26
- Q1 2023: 32
- Q2 2023: 33
- Q3 2023: 40
- Q4 2023: 38
- Q1 2024: 32
- Q2 2024: 29
- Q3 2024: 31
- Q4 2024: 34
- Q1 2025: 42
- Q2 2025: 39
- Q3 2025: 41
- Q4 2025: 41
- Q1 2026: 40
- Q2 2026: 35
- Q2 2013: $6.0bn
- Q3 2013: $3.3bn
- Q4 2013: $3.4bn
- Q1 2014: $4.2bn
- Q2 2014: $3.8bn
- Q3 2014: $4.8bn
- Q4 2014: $5.6bn
- Q1 2015: $5.4bn
- Q2 2015: $5.7bn
- Q3 2015: $5.5bn
- Q4 2015: $7.0bn
- Q1 2016: $7.8bn
- Q2 2016: $8.1bn
- Q3 2016: $8.8bn
- Q4 2016: $7.3bn
- Q1 2017: $9.2bn
- Q2 2017: $11.5bn
- Q3 2017: $12.8bn
- Q4 2017: $11.6bn
- Q1 2018: $12.7bn
- Q2 2018: $14.8bn
- Q3 2018: $16.7bn
- Q4 2018: $13.7bn
- Q1 2019: $16.7bn
- Q2 2019: $15.3bn
- Q3 2019: $15.7bn
- Q4 2019: $16.9bn
- Q1 2020: $14.6bn
- Q2 2020: $16.5bn
- Q3 2020: $19.6bn
- Q4 2020: $21.4bn
- Q1 2021: $18.3bn
- Q2 2021: $23.2bn
- Q3 2021: $23.9bn
- Q4 2021: $26.0bn
- Q1 2022: $21.0bn
- Q2 2022: $13.0bn
- Q3 2022: $11.1bn
- Q4 2022: $15.6bn
- Q1 2023: $14.4bn
- Q2 2023: $20.2bn
- Q3 2023: $17.0bn
- Q4 2023: $20.0bn
- Q1 2024: $23.6bn
- Q2 2024: $27.0bn
- Q3 2024: $28.4bn
- Q4 2024: $30.3bn
- Q1 2025: $28.7bn
- Q2 2025: $30.6bn
- Q3 2025: $23.6bn
- Q4 2025: $35.8bn
- Q1 2026: $29.0bn
- Q2 2026: $24.5bn
Between the quarter ends of Q1 2026 and Q2 2026. Each change in shares is valued at the Q2 2026 price, so the price’s own move is left out; a 13F shows the two quarter ends, not when in between anything was bought or sold.
Started in Q2 2026
Largest increases, by shares
- Arrowstreet Capital LP2,105,544 to 3,744,497 shares+$652m
- Invesco Ltd11,190,485 to 11,843,563 shares+$260m
- Capital Research Global Investors966,639 to 1,551,664 shares+$233m
- D1 Capital Partners LPnew: 574,200 shares+$228m
- Two Sigma Investments LP1,405,334 to 1,979,128 shares+$228m
Largest decreases, by shares
- T. Rowe Price Associates Inc12,520,007 to 11,256,570 shares-$502m
- Fidelity (FMR LLC)5,477,234 to 4,251,130 shares-$488m
- Millennium Management LLC910,292 to 413,337 shares-$198m
- Point72 Asset Management LP635,309 to 167,663 shares-$186m
- Capital World Investors8,048,010 to 7,742,681 shares-$121m
Left it
- Freestone Grove Partners LPwas $109m
- Artisan Partners LPwas $37m
- Davidson Kempner Capital Management LPwas $3.6m
- Dodge & Coxwas $230k
| Manager | Value over time | First listed | Largest | Q2 2026 |
|---|---|---|---|---|
| Invesco Ltd | Q2 2013 | $6.8bn | $4.7bn | |
| T. Rowe Price Associates Inc | Q4 2013 | $8.9bn | $4.5bn | |
| Capital World Investors | Q2 2013 | $4.4bn | $3.1bn | |
| Fidelity (FMR LLC) | Q3 2013 | $5.6bn | $1.7bn | |
| AllianceBernstein LP | Q2 2013 | $3.0bn | $1.7bn | |
| Wellington Management Group LLP | Q2 2014 | $2.0bn | $1.5bn | |
| Arrowstreet Capital LP | Q1 2017 | $1.5bn | $1.5bn | |
| Baillie Gifford & Co | Q2 2013 | $2.0bn | $1.0bn | |
| Two Sigma Investments LP | Q2 2013 | $787m | $787m | |
| Janus Henderson Group Ltd | Q2 2013 | $1.0bn | $759m | |
| Capital Research Global Investors | Q3 2013 | $1.8bn | $617m | |
| Coatue Management LLC | Q2 2013 | $538m | $316m | |
| Holocene Advisors LP | Q2 2020 | $480m | $311m | |
| Squarepoint Ops LLC | Q2 2015 | $296m | $296m | |
| Jane Street Group LLC | Q2 2017 | $305m | $246m | |
| Viking Global Investors LP | Q2 2013 | $865m | last listed Q2 2024 | |
| Citadel Advisors LLC | Q4 2015 | $664m | last listed Q1 2026 | |
| MFS Investment Management | Q2 2013 | $623m | last listed Q2 2025 | |
| Two Sigma Advisers LP | Q3 2013 | $604m | last listed Q4 2025 | |
| Lone Pine Capital LLC | Q2 2013 | $588m | last listed Q2 2013 | |
| AQR Capital Management LLC | Q4 2015 | $295m | last listed Q1 2026 | |
| Balyasny Asset Management LLC | Q1 2014 | $269m | last listed Q1 2026 | |
| Walleye Capital LLC | Q2 2022 | $127m | last listed Q4 2025 | |
| Artisan Partners LP | Q1 2016 | $119m | last listed Q1 2026 | |
| Freestone Grove Partners LP | Q2 2025 | $109m | last listed Q1 2026 |
Reported as options rather than shares
A put or a call on a name is not a position in it, and the filing states the notional rather than what the option cost. These lines are listed apart for that reason and are not counted in anything above.
- Hudson Bay Capital Management LP · puts$99m notional
What ISRG is worth
Knowing who owns it is half the question. The other half is what it is worth against the companies it trades beside, which is the one an interviewer will follow up with.
Build the comp set around ISRG →How much of the picture this is
A Form 13F reports US-listed long equity and nothing else: no shorts, no bonds, no cash and no non-US listings. It arrives forty-five days after the quarter ends, so a manager who sold in July still shows the position in a filing published in August. This page reads the managers on file here rather than every filer in the market, and each manager’s largest positions rather than the whole table, so a small position in a very large book may not appear. Say “their last filing showed” rather than “they own”, and the distinction will do you credit.
What to do with a name the funds are buying
Knowing who owns something is the start of a pitch, not the pitch. The next questions are what it is worth and why they were buying.
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The holdings, every quarter, and the week between
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