Skip to main content
Equibles

Parallax Volatility Advisers, L.P.

Position in TMO — Thermo Fisher Scientific Inc.

CIK 1521001 San Francisco, CA
Back to TMO Full portfolio

Position in TMO

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$813,707
+$167,041 QoQ
Shares Held
1,623
+45.4% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
#1,534
of 2,617 holders
Holding Since
Mar 2020
24 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in TMO Over Time

Shares Held

Position Value (USD)

Derivatives in TMO

reported options exposure · as of Dec 31, 2025
CallValue
$0
CallShares
0
PutValue
$20,918,145
PutShares
36,100

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 Diagnostics & Research

Healthcare · as of Jun 30, 2026

Parallax Volatility Advisers, L.P. holds $814,087 across 2 Diagnostics & Research names. TMO ranks #1 (100.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 TMO
Thermo Fisher Scientific Inc.
This page 		1,623 $813,707
2 DHR
Danaher Corp /De/
 2 $380

All Filings in TMO

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $813,707 1,623
2025-12-31 $646,666 1,116
2025-12-31 $20,918,145 36,100
2025-06-30 $162,184 400
2025-06-30 $40,546 100
2025-03-31 $2,887,572 5,803
2025-03-31 $5,821,920 11,700
2025-03-31 $2,537,760 5,100
2024-12-31 $2,379,011 4,573
2024-12-31 $26,947,914 51,800
2024-12-31 $7,907,496 15,200
2024-09-30 $15,464,250 25,000
2024-09-30 $25,918,083 41,900
2024-06-30 $663,600 1,200
2024-06-30 $5,806,500 10,500
2024-03-31 $58,121 100
2024-03-31 $35,918,778 61,800
2023-12-31 $141,614,772 266,800
2023-12-31 $43,896,333 82,700
2023-09-30 $98,348,831 194,300
2023-09-30 $61,094,719 120,700
2023-06-30 $28,487,550 54,600
2023-06-30 $71,166,700 136,400
2023-03-31 $105,763,895 183,500
2023-03-31 $24,149,903 41,900
2022-12-31 $330,469,069 600,100
2022-12-31 $23,679,670 43,000
2022-09-30 $24,497,277 48,300
2022-09-30 $206,882,801 407,900
2022-06-30 $261,372,008 481,100
2022-06-30 $40,039,736 73,700
2022-03-31 $71,173,325 120,500
2022-03-31 $45,420,985 76,900
2021-12-31 $91,411,880 137,000
2021-12-31 $104,756,680 157,000
2021-09-30 $34,923,117 61,126
2021-09-30 $111,523,616 195,200
2021-09-30 $127,406,590 223,000
2021-06-30 $67,195,404 133,200
2021-06-30 $24,810,339 49,181
2021-06-30 $64,219,031 127,300
2021-03-31 $64,167,028 140,600
2021-03-31 $6,223,654 13,637
2021-03-31 $63,710,648 139,600
2020-12-31 $9,942,074 21,345
2020-12-31 $36,889,776 79,200
2020-12-31 $97,627,488 209,600
2020-09-30 $82,785,000 187,500
2020-09-30 $10,327,594 23,391
2020-09-30 $123,316,536 279,300

Report a Problem

Category
Description
Email (optional, for follow-up)