Position in TMO
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$1,184,095
-$813,269 QoQ
Shares Held
2,409
-30.1% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2021
19 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in TMO Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026GROUP ONE TRADING LLC holds $8,605,509 across 14 Diagnostics & Research names. TMO ranks #4 (13.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | QGEN |
Qiagen N.V.
|
71,010 | $2,843,240 | |
| 2 | ILMN |
Illumina, Inc.
|
15,677 | $1,932,347 | |
| 3 | NTRA |
Natera, Inc.
|
7,791 | $1,558,122 | |
| 4 | TMO |
Thermo Fisher Scientific Inc.
This page
|
2,409 | $1,184,095 | |
| 5 | DHR |
Danaher Corp /De/
|
2,960 | $561,216 | |
| 6 | DGX |
Quest Diagnostics Inc
|
961 | $188,336 | |
| 7 | ICLR |
Icon PLC
|
1,555 | $172,076 | |
| 8 | TWST |
Twist Bioscience Corp
|
1,522 | $72,325 |
All Filings in TMO
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19 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,184,095 | 2,409 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $1,997,364 | 3,447 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $1,466,700 | 3,024 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $773,617 | 1,908 | Shares | Sole | 2025-08-14 | |
| 2024-12-31 | $2,864,386 | 5,506 | Shares | Sole | 2025-05-14 | |
| 2024-09-30 | $2,343,143 | 3,788 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $2,315,964 | 4,188 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $2,305,078 | 3,966 | Shares | Sole | 2024-05-10 | |
| 2023-12-31 | $1,510,628 | 2,846 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $1,001,710 | 1,979 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $2,052,042 | 3,933 | Shares | Sole | 2023-08-09 | |
| 2023-03-31 | $5,372,344 | 9,321 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $5,791,056 | 10,516 | Shares | Sole | 2023-02-09 | |
| 2022-09-30 | $3,088,279 | 6,089 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $10,252,236 | 18,871 | Shares | Sole | 2022-08-11 | |
| 2021-12-31 | $7,925,476 | 11,878 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $8,102,030 | 14,181 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $7,630,613 | 15,126 | Shares | Sole | 2021-08-10 | |
| 2021-03-31 | $2,097,978 | 4,597 | Shares | Sole | 2021-05-12 | |
| No filing history on record for this holder in this stock. | ||||||