Parallax Volatility Advisers’s Boston Scientific BSX Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $12M | Buy |
201,600
+131,600
| +188% | +$10.5M | 0.03% | 362 |
|
|
2025
Q4 | $6.67M | Buy |
70,000
+45,000
| +180% | +$4.41M | 0.01% | 589 |
|
|
2025
Q3 | $2.44M | Hold |
25,000
| – | – | ﹤0.01% | 863 |
|
|
2025
Q2 | $2.69M | Sell |
25,000
-9,500
| -28% | -$961K | 0.01% | 804 |
|
|
2025
Q1 | $3.48M | Sell |
34,500
-44,500
| -56% | -$4.48M | 0.01% | 712 |
|
|
2024
Q4 | $7.06M | Sell |
79,000
-10,200
| -11% | -$898K | 0.01% | 694 |
|
|
2024
Q3 | $7.47M | Sell |
89,200
-71,200
| -44% | -$5.61M | 0.01% | 652 |
|
|
2024
Q2 | $12.4M | Sell |
160,400
-1,100
| -0.7% | -$80.5K | 0.03% | 411 |
|
|
2024
Q1 | $11.1M | Buy |
161,500
+109,200
| +209% | +$7.02M | 0.02% | 490 |
|
|
2023
Q4 | $3.02M | Sell |
52,300
-75,800
| -59% | -$4.05M | 0.01% | 1022 |
|
|
2023
Q3 | $6.76M | Buy |
128,100
+116,700
| +1,024% | +$6.12M | 0.02% | 657 |
|
|
2023
Q2 | $617K | Sell |
11,400
-141,600
| -93% | -$7.4M | ﹤0.01% | 1579 |
|
|
2023
Q1 | $7.65M | Sell |
153,000
-47,500
| -24% | -$2.24M | 0.02% | 673 |
|
|
2022
Q4 | $9.28M | Sell |
200,500
-39,000
| -16% | -$1.69M | 0.01% | 798 |
|
|
2022
Q3 | $9.28M | Sell |
239,500
-557,700
| -70% | -$22.4M | 0.01% | 789 |
|
|
2022
Q2 | $29.7M | Buy |
797,200
+748,700
| +1,544% | +$30.5M | 0.03% | 382 |
|
|
2022
Q1 | $2.15M | Buy |
+48,500
| New | +$2.1M | ﹤0.01% | 1341 |
|
|
2020
Q4 | – | Sell |
-447,400
| Closed | -$17.1M | – | 2489 |
|
|
2020
Q3 | $17.1M | Buy |
447,400
+71,600
| +19% | +$2.76M | 0.01% | 777 |
|
|
2020
Q2 | $13.2M | Buy |
375,800
+315,800
| +526% | +$11.4M | 0.02% | 661 |
|
|
2020
Q1 | $1.96M | Sell |
60,000
-309,700
| -84% | -$12.1M | ﹤0.01% | 1245 |
|
|
2019
Q4 | $16.7M | Sell |
369,700
-144,700
| -28% | -$6.05M | 0.02% | 473 |
|
|
2019
Q3 | $20.9M | Buy |
514,400
+376,200
| +272% | +$15.9M | 0.02% | 384 |
|
|
2019
Q2 | $5.94M | Sell |
138,200
-90,300
| -40% | -$3.47M | 0.01% | 664 |
|
|
2019
Q1 | $8.77M | Buy |
228,500
+170,200
| +292% | +$6.5M | 0.01% | 513 |
|
|
2018
Q4 | $2.06M | Sell |
58,300
-44,800
| -43% | -$1.62M | ﹤0.01% | 1047 |
|
|
2018
Q3 | $3.97M | Buy |
+103,100
| New | +$3.6M | ﹤0.01% | 793 |
|
|
2017
Q1 | – | Sell |
-71,500
| Closed | -$1.55M | – | 3578 |
|
|
2016
Q4 | $1.55M | Buy |
+71,500
| New | +$1.56M | ﹤0.01% | 1065 |
|
|
2016
Q2 | – | Sell |
-95,000
| Closed | -$1.79M | – | 2538 |
|
|
2016
Q1 | $1.79M | Buy |
+95,000
| New | +$1.67M | ﹤0.01% | 946 |
|
|
2014
Q3 | – | Sell |
-178,300
| Closed | -$2.28M | – | 4143 |
|
|
2014
Q2 | $2.28M | Buy |
178,300
+28,300
| +19% | +$368K | 0.01% | 729 |
|
|
2014
Q1 | $2.03M | Buy |
+150,000
| New | +$1.97M | 0.01% | 582 |
|
Other funds holding BSX
VCM
VPM
Parallax Volatility Advisers's BSX Position: Q1 2026 in Review
Parallax Volatility Advisers reduced its Boston Scientific (BSX) stake by 98% in Q1 2026, selling an estimated $6.46M and leaving 1,389 shares worth $82.7K. The position accounts for ﹤0.01% of the portfolio, ranked #1249.
Parallax Volatility Advisers first reported a position in BSX in Q4 2014 and has held it in 27 quarters since. The position peaked at $19.2M in Q1 2020. 1,666 funds tracked by Wall St. Rank hold BSX as of Q1 2026.
- Parallax Volatility Advisers held 1,389 shares of Boston Scientific worth $82.7K as of Q1 2026.
- Parallax Volatility Advisers sold 80,743 Boston Scientific shares in Q1 2026, an estimated $6.46M.
- Boston Scientific made up ﹤0.01% of Parallax Volatility Advisers's portfolio in Q1 2026, its #1249 holding.
- Parallax Volatility Advisers first reported a position in Boston Scientific in Q4 2014 and has held it in 27 quarters since.
- Parallax Volatility Advisers's Boston Scientific position peaked at $19.2M in Q1 2020.
- 1,666 funds tracked by Wall St. Rank held Boston Scientific as of Q1 2026.
Based on Parallax Volatility Advisers's 13F filing for Q1 2026, filed 15 May 2026.