Position in TMO
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$92,355,046
+$86,966,161 QoQ
Shares Held
187,893
+1920.4% QoQ
Ownership
0.051%
of shares outstanding
% of Portfolio
0.08%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
23 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)
Derivatives in TMO
reported options exposure · as of Dec 31, 2025CallValue
$753,285
CallShares
1,300
PutValue
$1,158,900
PutShares
2,000
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 Diagnostics & Research
Healthcare · as of Mar 31, 2026TWO SIGMA INVESTMENTS, LP holds $1,108,346,968 across 33 Diagnostics & Research names. TMO ranks #3 (8.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | GH |
Guardant Health, Inc.
|
4,229,531 | $390,681,778 | |
| 2 | DHR |
Danaher Corp /De/
|
1,858,782 | $352,425,067 | |
| 3 | TMO |
Thermo Fisher Scientific Inc.
This page
|
187,893 | $92,355,046 | |
| 4 | MEDP |
Medpace Holdings, Inc.
|
176,557 | $84,780,905 | |
| 5 | A |
Agilent Technologies, Inc.
|
677,347 | $77,204,011 | |
| 6 | IQV |
Iqvia Holdings Inc.
|
219,984 | $37,516,071 | |
| 7 | ILMN |
Illumina, Inc.
|
73,717 | $9,086,357 | |
| 8 | NTRA |
Natera, Inc.
|
40,200 | $8,039,598 |
All Filings in TMO
Export CSV
34 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $92,355,046 | 187,893 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $1,158,900 | 2,000 | Put | Sole | 2026-02-17 | |
| 2025-12-31 | $753,285 | 1,300 | Call | Sole | 2026-02-17 | |
| 2025-12-31 | $5,388,885 | 9,300 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $4,621,270 | 9,528 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $258,325,458 | 637,117 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $164,835,473 | 331,261 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $235,056,041 | 451,831 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $245,711,468 | 397,225 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $236,581,695 | 427,815 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $88,876,889 | 152,917 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $58,585,946 | 110,375 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $110,119,308 | 217,554 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $219,048,389 | 419,834 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $139,686,151 | 242,355 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $660,828 | 1,200 | Shares | Sole | 2023-02-14 | |
| 2022-06-30 | $45,271,522 | 83,330 | Shares | Sole | 2022-08-15 | |
| 2021-12-31 | $10,008,600 | 15,000 | Put | Sole | 2022-02-14 | |
| 2021-12-31 | $226,251,075 | 339,085 | Shares | Sole | 2022-02-14 | |
| 2021-12-31 | $7,539,812 | 11,300 | Call | Sole | 2022-02-14 | |
| 2021-09-30 | $6,513,162 | 11,400 | Put | Sole | 2021-11-15 | |
| 2021-09-30 | $7,598,689 | 13,300 | Call | Sole | 2021-11-15 | |
| 2021-06-30 | $17,174,681 | 34,045 | Shares | Sole | 2021-08-16 | |
| 2021-06-30 | $1,967,433 | 3,900 | Call | Sole | 2021-08-16 | |
| 2021-06-30 | $2,673,691 | 5,300 | Put | Sole | 2021-08-16 | |
| 2021-03-31 | $730,208 | 1,600 | Put | Sole | 2021-05-17 | |
| 2021-03-31 | $502,018 | 1,100 | Call | Sole | 2021-05-17 | |
| 2020-12-31 | $2,328,900 | 5,000 | Call | Sole | 2021-02-16 | |
| 2020-12-31 | $3,726,240 | 8,000 | Put | Sole | 2021-02-16 | |
| 2020-09-30 | $353,216 | 800 | Call | Sole | 2020-11-16 | |
| 2020-06-30 | $724,680 | 2,000 | Call | Sole | 2020-08-14 | |
| 2020-06-30 | $362,340 | 1,000 | Put | Sole | 2020-08-14 | |
| 2020-03-31 | $283,600 | 1,000 | Call | Sole | 2020-05-15 | |
| 2020-03-31 | $283,600 | 1,000 | Put | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||