Parallax Volatility Advisers’s Intuitive Surgical ISRG Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $587K | Sell |
1,300
-12,400
| -91% | -$6.27M | ﹤0.01% | 1034 |
|
|
2025
Q4 | $7.76M | Buy |
+13,700
| New | +$7.29M | 0.02% | 534 |
|
|
2025
Q3 | – | Sell |
-56,100
| Closed | -$30.5M | – | 1719 |
|
|
2025
Q2 | $30.5M | Buy |
56,100
+44,500
| +384% | +$23.3M | 0.07% | 205 |
|
|
2025
Q1 | $5.75M | Buy |
11,600
+10,300
| +792% | +$5.7M | 0.02% | 586 |
|
|
2024
Q4 | $679K | Sell |
1,300
-4,400
| -77% | -$2.29M | ﹤0.01% | 1443 |
|
|
2024
Q3 | $2.8M | Buy |
5,700
+100
| +2% | +$46.6K | 0.01% | 1009 |
|
|
2024
Q2 | $2.49M | Buy |
+5,600
| New | +$2.23M | 0.01% | 968 |
|
|
2024
Q1 | – | Sell |
-65,000
| Closed | -$21.9M | – | 2078 |
|
|
2023
Q4 | $21.9M | Buy |
65,000
+63,100
| +3,321% | +$18.8M | 0.04% | 364 |
|
|
2023
Q3 | $555K | Sell |
1,900
-900
| -32% | -$281K | ﹤0.01% | 1559 |
|
|
2023
Q2 | $957K | Sell |
2,800
-20,300
| -88% | -$6.14M | ﹤0.01% | 1416 |
|
|
2023
Q1 | $5.9M | Sell |
23,100
-198,700
| -90% | -$49M | 0.01% | 787 |
|
|
2022
Q4 | $58.9M | Buy |
221,800
+110,500
| +99% | +$26.9M | 0.09% | 243 |
|
|
2022
Q3 | $20.9M | Buy |
111,300
+51,800
| +87% | +$11.1M | 0.03% | 512 |
|
|
2022
Q2 | $11.9M | Buy |
59,500
+35,600
| +149% | +$8.35M | 0.01% | 658 |
|
|
2022
Q1 | $7.21M | Sell |
23,900
-1,300
| -5% | -$380K | ﹤0.01% | 856 |
|
|
2021
Q4 | $9.05M | Sell |
25,200
-18,000
| -42% | -$6.19M | 0.01% | 627 |
|
|
2021
Q3 | $14.3M | Buy |
+43,200
| New | +$14.5M | 0.01% | 535 |
|
|
2021
Q1 | – | Sell |
-76,800
| Closed | -$20.9M | – | 1634 |
|
|
2020
Q4 | $20.9M | Sell |
76,800
-123,900
| -62% | -$30.8M | 0.02% | 519 |
|
|
2020
Q3 | $47.5M | Buy |
200,700
+70,500
| +54% | +$15.8M | 0.04% | 411 |
|
|
2020
Q2 | $24.7M | Sell |
130,200
-27,900
| -18% | -$5M | 0.03% | 452 |
|
|
2020
Q1 | $26.1M | Buy |
+158,100
| New | +$29M | 0.03% | 345 |
|
|
2019
Q1 | – | Sell |
-42,000
| Closed | -$6.71M | – | 3397 |
|
|
2018
Q4 | $6.71M | Buy |
42,000
+8,700
| +26% | +$1.47M | 0.01% | 638 |
|
|
2018
Q3 | $6.38M | Buy |
+33,300
| New | +$5.91M | 0.01% | 633 |
|
|
2016
Q3 | – | Sell |
-225,000
| Closed | -$16.5M | – | 3403 |
|
|
2016
Q2 | $16.5M | Hold |
225,000
| – | – | 0.03% | 326 |
|
|
2016
Q1 | $15M | Buy |
+225,000
| New | +$13.9M | 0.03% | 288 |
|
|
2015
Q2 | – | Sell |
-565,200
| Closed | -$31.7M | – | 4261 |
|
|
2015
Q1 | $31.7M | Buy |
565,200
+556,200
| +6,180% | +$31.5M | 0.08% | 207 |
|
|
2014
Q4 | $529K | Sell |
9,000
-45,000
| -83% | -$2.51M | ﹤0.01% | 2008 |
|
|
2014
Q3 | $2.77M | Sell |
54,000
-189,000
| -78% | -$9.38M | 0.01% | 977 |
|
|
2014
Q2 | $11.1M | Buy |
243,000
+144,000
| +145% | +$6.35M | 0.05% | 289 |
|
|
2014
Q1 | $4.82M | Sell |
99,000
-68,400
| -41% | -$3.22M | 0.03% | 399 |
|
|
2013
Q4 | $7.14M | Sell |
167,400
-36,000
| -18% | -$1.51M | 0.03% | 355 |
|
|
2013
Q3 | $8.5M | Sell |
203,400
-69,300
| -25% | -$3.06M | 0.04% | 283 |
|
|
2013
Q2 | $15.3M | Buy |
+272,700
| New | +$15M | 0.07% | 205 |
|
Other funds holding ISRG
VCM
VPM
Parallax Volatility Advisers's ISRG Position: Q1 2026 in Review
Parallax Volatility Advisers reduced its Intuitive Surgical (ISRG) stake by 86% in Q1 2026, selling an estimated $1.72M and leaving 543 shares worth $245K. The position accounts for ﹤0.01% of the portfolio, ranked #1151.
Parallax Volatility Advisers first reported a position in ISRG in Q3 2013 and has held it in 31 quarters since. The position peaked at $34.1M in Q1 2020. 2,303 funds tracked by Wall St. Rank hold ISRG as of Q1 2026.
- Parallax Volatility Advisers held 543 shares of Intuitive Surgical worth $245K as of Q1 2026.
- Parallax Volatility Advisers sold 3,409 Intuitive Surgical shares in Q1 2026, an estimated $1.72M.
- Intuitive Surgical made up ﹤0.01% of Parallax Volatility Advisers's portfolio in Q1 2026, its #1151 holding.
- Parallax Volatility Advisers first reported a position in Intuitive Surgical in Q3 2013 and has held it in 31 quarters since.
- Parallax Volatility Advisers's Intuitive Surgical position peaked at $34.1M in Q1 2020.
- 2,303 funds tracked by Wall St. Rank held Intuitive Surgical as of Q1 2026.
Based on Parallax Volatility Advisers's 13F filing for Q1 2026, filed 15 May 2026.