Parallax Volatility Advisers, L.P.
Position in BSX — Boston Scientific Corp
CIK 1521001
San Francisco, CA
Position in BSX
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$5,770,293
+$5,683,134 QoQ
Shares Held
135,199
+9633.5% QoQ
Ownership
0.009%
of shares outstanding
% of Portfolio
0.28%
of 13F equity value
Holder Rank
#399
of 1,474 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in BSX Over Time
Shares Held
Position Value (USD)
Derivatives in BSX
reported options exposure · as of Jun 30, 2026CallValue
$6,402,000
CallShares
150,000
PutValue
$20,102,280
PutShares
471,000
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Medical Devices
Healthcare · as of Jun 30, 2026Parallax Volatility Advisers, L.P. holds $6,001,954 across 3 Medical Devices names. BSX ranks #1 (96.1% of the industry book) .
All Filings in BSX
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $6,402,000 | 150,000 | Call | Sole | 2026-08-14 | |
| 2026-06-30 | $5,770,293 | 135,199 | Shares | Sole | 2026-08-14 | |
| 2026-06-30 | $20,102,280 | 471,000 | Put | Sole | 2026-08-14 | |
| 2026-03-31 | $12,650,400 | 201,600 | Call | Sole | 2026-05-15 | |
| 2026-03-31 | $87,159 | 1,389 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $24,934,025 | 261,500 | Put | Sole | 2026-02-17 | |
| 2025-12-31 | $7,831,286 | 82,132 | Shares | Sole | 2026-02-17 | |
| 2025-12-31 | $6,674,500 | 70,000 | Call | Sole | 2026-02-17 | |
| 2025-09-30 | $5,385,758 | 55,165 | Shares | Sole | 2025-11-14 | |
| 2025-09-30 | $2,440,750 | 25,000 | Call | Sole | 2025-11-14 | |
| 2025-06-30 | $7,486,047 | 69,696 | Shares | Sole | 2025-08-14 | |
| 2025-06-30 | $2,685,250 | 25,000 | Call | Sole | 2025-08-14 | |
| 2025-03-31 | $18,728,573 | 185,652 | Shares | Sole | 2025-05-15 | |
| 2025-03-31 | $3,480,360 | 34,500 | Call | Sole | 2025-05-15 | |
| 2024-12-31 | $4,707,164 | 52,700 | Put | Sole | 2025-02-14 | |
| 2024-12-31 | $16,239,447 | 181,812 | Shares | Sole | 2025-02-14 | |
| 2024-12-31 | $7,056,280 | 79,000 | Call | Sole | 2025-02-14 | |
| 2024-09-30 | $4,416,260 | 52,700 | Put | Sole | 2024-11-14 | |
| 2024-09-30 | $13,294,702 | 158,648 | Shares | Sole | 2024-11-14 | |
| 2024-09-30 | $7,474,960 | 89,200 | Call | Sole | 2024-11-14 | |
| 2024-06-30 | $12,352,404 | 160,400 | Call | Sole | 2024-08-14 | |
| 2024-06-30 | $762,399 | 9,900 | Put | Sole | 2024-08-14 | |
| 2024-06-30 | $8,799,624 | 114,266 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $12,136,359 | 177,199 | Shares | Sole | 2024-05-15 | |
| 2024-03-31 | $602,712 | 8,800 | Put | Sole | 2024-05-15 | |
| 2024-03-31 | $11,061,135 | 161,500 | Call | Sole | 2024-05-15 | |
| 2023-12-31 | $3,023,463 | 52,300 | Call | Sole | 2024-02-14 | |
| 2023-12-31 | $16,383,354 | 283,400 | Put | Sole | 2024-02-14 | |
| 2023-12-31 | $13,768,838 | 238,174 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $6,763,680 | 128,100 | Call | Sole | 2023-11-14 | |
| 2023-09-30 | $11,232,038 | 212,728 | Shares | Sole | 2023-11-14 | |
| 2023-09-30 | $11,806,080 | 223,600 | Put | Sole | 2023-11-14 | |
| 2023-06-30 | $616,626 | 11,400 | Call | Sole | 2023-08-14 | |
| 2023-06-30 | $10,997,795 | 203,324 | Shares | Sole | 2023-08-14 | |
| 2023-06-30 | $10,509,687 | 194,300 | Put | Sole | 2023-08-14 | |
| 2023-03-31 | $10,116,066 | 202,200 | Put | Sole | 2023-05-15 | |
| 2023-03-31 | $5,130,976 | 102,558 | Shares | Sole | 2023-05-15 | |
| 2023-03-31 | $7,654,590 | 153,000 | Call | Sole | 2023-05-15 | |
| 2022-12-31 | $12,261,550 | 265,000 | Put | Sole | 2023-02-27 | |
| 2022-12-31 | $780,343 | 16,865 | Shares | Sole | 2023-02-27 | |
| 2022-12-31 | $9,277,135 | 200,500 | Call | Sole | 2023-02-27 | |
| 2022-09-30 | $9,275,835 | 239,500 | Call | Sole | 2022-11-21 | |
| 2022-09-30 | $1,062,131 | 27,424 | Shares | Sole | 2022-11-21 | |
| 2022-09-30 | $5,983,785 | 154,500 | Put | Sole | 2022-11-21 | |
| 2022-06-30 | $2,974,146 | 79,800 | Put | Sole | 2022-08-17 | |
| 2022-06-30 | $29,711,644 | 797,200 | Call | Sole | 2022-08-17 | |
| 2022-03-31 | $5,062,347 | 114,300 | Put | Sole | 2022-05-16 | |
| 2022-03-31 | $2,148,065 | 48,500 | Call | Sole | 2022-05-16 | |
| 2021-12-31 | $10,611,504 | 249,800 | Put | Sole | 2022-02-14 | |
| 2021-12-31 | $8,194,392 | 192,900 | Call | Sole | 2022-02-14 | |
| No filing history on record for this holder in this stock. | ||||||