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Parallax Volatility Advisers, L.P.

Position in DXCM — Dexcom Inc

CIK 1521001 San Francisco, CA

Position in DXCM

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$231,347
-$321,418 QoQ
Shares Held
3,435
-61.0% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#701
of 971 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in DXCM Over Time

Shares Held

Position Value (USD)

Derivatives in DXCM

reported options exposure · as of Mar 31, 2026
CallValue
$0
CallShares
0
PutValue
$942,000
PutShares
15,000

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. DXCM ranks #2 (3.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 DXCM
Dexcom Inc
This page
3,435 $231,347

All Filings in DXCM

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $231,347 3,435
2026-03-31 $942,000 15,000
2026-03-31 $552,765 8,802
2025-12-31 $2,820,725 42,500
2025-12-31 $1,380,496 20,800
2025-12-31 $127,032 1,914
2025-09-30 $2,691,600 40,000
2025-09-30 $1,996,965 29,677
2025-06-30 $1,309,350 15,000
2025-03-31 $409 6
2025-03-31 $1,024,350 15,000
2024-12-31 $5,381,684 69,200
2024-12-31 $637,714 8,200
2024-12-31 $466 6
2024-09-30 $6,704 100
2024-09-30 $6,717,408 100,200
2024-06-30 $568,373 5,013
2024-06-30 $9,353,850 82,500
2024-03-31 $6,088,930 43,900
2024-03-31 $841,215 6,065
2024-03-31 $208,050 1,500
2023-12-31 $24,222,368 195,200
2023-12-31 $4,355,559 35,100
2023-09-30 $2,584,876 27,705
2023-09-30 $1,754,040 18,800
2023-09-30 $18,669,330 200,100
2023-06-30 $15,228,435 118,500
2023-06-30 $6,386,947 49,700
2023-06-30 $7,710 60
2023-03-31 $51,734,954 445,300
2023-03-31 $6,970 60
2023-03-31 $11,002,246 94,700
2022-12-31 $23,474,652 207,300
2022-12-31 $14,098,380 124,500
2022-12-31 $6,794 60
2022-09-30 $6,620,388 82,200
2022-09-30 $2,070,280 25,705
2022-09-30 $11,106,466 137,900
2022-06-30 $7,892,727 105,900
2022-06-30 $20,391,408 273,600
2022-06-30 $679,490 9,117
2022-03-31 $6,548,480 12,800
2022-03-31 $1,932,313 3,777
2022-03-31 $17,650,200 34,500
2021-12-31 $10,094,660 18,800
2021-12-31 $4,124,849 7,682
2021-12-31 $45,801,835 85,300
2021-09-30 $10,882,514 19,900
2021-09-30 $58,732,764 107,400
2021-09-30 $22,240,249 40,669