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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, 2026
CallValue
$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, 2026

Parallax Volatility Advisers, L.P. holds $6,001,954 across 3 Medical Devices names. BSX ranks #1 (96.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 BSX
Boston Scientific Corp
This page
135,199 $5,770,293

All Filings in BSX

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $6,402,000 150,000
2026-06-30 $5,770,293 135,199
2026-06-30 $20,102,280 471,000
2026-03-31 $12,650,400 201,600
2026-03-31 $87,159 1,389
2025-12-31 $24,934,025 261,500
2025-12-31 $7,831,286 82,132
2025-12-31 $6,674,500 70,000
2025-09-30 $5,385,758 55,165
2025-09-30 $2,440,750 25,000
2025-06-30 $7,486,047 69,696
2025-06-30 $2,685,250 25,000
2025-03-31 $18,728,573 185,652
2025-03-31 $3,480,360 34,500
2024-12-31 $4,707,164 52,700
2024-12-31 $16,239,447 181,812
2024-12-31 $7,056,280 79,000
2024-09-30 $4,416,260 52,700
2024-09-30 $13,294,702 158,648
2024-09-30 $7,474,960 89,200
2024-06-30 $12,352,404 160,400
2024-06-30 $762,399 9,900
2024-06-30 $8,799,624 114,266
2024-03-31 $12,136,359 177,199
2024-03-31 $602,712 8,800
2024-03-31 $11,061,135 161,500
2023-12-31 $3,023,463 52,300
2023-12-31 $16,383,354 283,400
2023-12-31 $13,768,838 238,174
2023-09-30 $6,763,680 128,100
2023-09-30 $11,232,038 212,728
2023-09-30 $11,806,080 223,600
2023-06-30 $616,626 11,400
2023-06-30 $10,997,795 203,324
2023-06-30 $10,509,687 194,300
2023-03-31 $10,116,066 202,200
2023-03-31 $5,130,976 102,558
2023-03-31 $7,654,590 153,000
2022-12-31 $12,261,550 265,000
2022-12-31 $780,343 16,865
2022-12-31 $9,277,135 200,500
2022-09-30 $9,275,835 239,500
2022-09-30 $1,062,131 27,424
2022-09-30 $5,983,785 154,500
2022-06-30 $2,974,146 79,800
2022-06-30 $29,711,644 797,200
2022-03-31 $5,062,347 114,300
2022-03-31 $2,148,065 48,500
2021-12-31 $10,611,504 249,800
2021-12-31 $8,194,392 192,900