Position in TMO
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$288,277,988
-$136,644,289 QoQ
Shares Held
574,992
-33.5% QoQ
Ownership
0.156%
of shares outstanding
% of Portfolio
0.19%
of 13F equity value
Holder Rank
#94
of 2,606 holders
Holding Since
Mar 2020
25 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 Jun 30, 2026CallValue
$127,094,760
CallShares
253,500
PutValue
$150,006,912
PutShares
299,200
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, 2026CITADEL ADVISORS LLC holds $1,783,709,630 across 35 Diagnostics & Research names. TMO ranks #1 (16.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
This page
|
574,992 | $288,277,988 | |
| 2 | CRL |
Charles River Laboratories International, Inc.
|
1,193,601 | $270,696,770 | |
| 3 | GH |
Guardant Health, Inc.
|
1,449,534 | $217,473,585 | |
| 4 | DHR |
Danaher Corp /De/
|
943,694 | $179,754,833 | |
| 5 | RVTY |
Revvity, Inc.
|
1,457,335 | $162,143,091 | |
| 6 | A |
Agilent Technologies, Inc.
|
1,101,501 | $146,312,377 | |
| 7 | TWST |
Twist Bioscience Corp
|
862,042 | $88,686,880 | |
| 8 | NTRA |
Natera, Inc.
|
265,607 | $72,099,020 |
All Filings in TMO
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $288,277,988 | 574,992 | Shares | Defined | 2026-08-14 | |
| 2026-06-30 | $127,094,760 | 253,500 | Call | Defined | 2026-08-14 | |
| 2026-06-30 | $150,006,912 | 299,200 | Put | Defined | 2026-08-14 | |
| 2026-03-31 | $97,126,328 | 197,600 | Put | Defined | 2026-05-15 | |
| 2026-03-31 | $144,313,208 | 293,600 | Call | Defined | 2026-05-15 | |
| 2026-03-31 | $424,922,277 | 864,489 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $400,055,176 | 690,405 | Shares | Defined | 2026-02-17 | |
| 2025-12-31 | $166,533,930 | 287,400 | Call | Defined | 2026-02-17 | |
| 2025-12-31 | $203,792,565 | 351,700 | Put | Defined | 2026-02-17 | |
| 2025-09-30 | $141,916,852 | 292,600 | Put | Defined | 2025-11-14 | |
| 2025-09-30 | $167,137,892 | 344,600 | Call | Defined | 2025-11-14 | |
| 2025-09-30 | $169,611,978 | 349,701 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $145,803,416 | 359,600 | Call | Defined | 2025-08-14 | |
| 2025-06-30 | $444,717,853 | 1,096,823 | Shares | Defined | 2025-08-14 | |
| 2025-06-30 | $121,475,816 | 299,600 | Put | Defined | 2025-08-14 | |
| 2025-03-31 | $59,997,124 | 120,573 | Shares | Defined | 2025-05-15 | |
| 2025-03-31 | $67,623,840 | 135,900 | Put | Defined | 2025-05-15 | |
| 2025-03-31 | $141,616,960 | 284,600 | Call | Defined | 2025-05-15 | |
| 2024-12-31 | $137,340,720 | 264,000 | Call | Defined | 2025-02-14 | |
| 2024-12-31 | $176,846,985 | 339,940 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $125,843,637 | 241,900 | Put | Defined | 2025-02-14 | |
| 2024-09-30 | $192,560,841 | 311,300 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $160,890,057 | 260,100 | Put | Defined | 2024-11-14 | |
| 2024-09-30 | $102,797,673 | 166,186 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $543,429,782 | 982,694 | Shares | Defined | 2024-08-14 | |
| 2024-06-30 | $130,286,800 | 235,600 | Put | Defined | 2024-08-14 | |
| 2024-06-30 | $141,789,200 | 256,400 | Call | Defined | 2024-08-14 | |
| 2024-03-31 | $200,401,208 | 344,800 | Put | Defined | 2024-05-15 | |
| 2024-03-31 | $138,386,101 | 238,100 | Call | Defined | 2024-05-15 | |
| 2024-03-31 | $58,510,410 | 100,670 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $148,992,753 | 280,700 | Put | Defined | 2024-02-14 | |
| 2023-12-31 | $280,721,561 | 528,875 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $232,963,731 | 438,900 | Call | Defined | 2024-02-14 | |
| 2023-09-30 | $171,591,630 | 339,000 | Put | Defined | 2023-11-14 | |
| 2023-09-30 | $125,003,742 | 246,960 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $238,051,751 | 470,300 | Call | Defined | 2023-11-14 | |
| 2023-06-30 | $65,635,106 | 125,798 | Shares | Defined | 2023-08-14 | |
| 2023-06-30 | $292,910,450 | 561,400 | Call | Defined | 2023-08-14 | |
| 2023-06-30 | $218,352,375 | 418,500 | Put | Defined | 2023-08-14 | |
| 2023-03-31 | $244,265,606 | 423,800 | Call | Defined | 2023-05-15 | |
| 2023-03-31 | $204,899,535 | 355,500 | Put | Defined | 2023-05-15 | |
| 2023-03-31 | $137,011,794 | 237,715 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $83,514,891 | 151,655 | Shares | Defined | 2023-02-14 | |
| 2022-12-31 | $229,747,868 | 417,200 | Put | Defined | 2023-02-14 | |
| 2022-12-31 | $232,281,042 | 421,800 | Call | Defined | 2023-02-14 | |
| 2022-09-30 | $419,953,320 | 828,000 | Call | Defined | 2022-11-14 | |
| 2022-09-30 | $15,561,603 | 30,682 | Shares | Defined | 2022-11-14 | |
| 2022-09-30 | $228,184,781 | 449,900 | Put | Defined | 2022-11-14 | |
| 2022-06-30 | $148,143,763 | 272,684 | Shares | Defined | 2022-08-15 | |
| 2022-06-30 | $189,007,112 | 347,900 | Call | Defined | 2022-08-15 | |
| No filing history on record for this holder in this stock. | ||||||