Position in ICLR
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$25,808,614
-$2,034,216 QoQ
Shares Held
148,573
-41.0% QoQ
Ownership
0.193%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#63
of 422 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in ICLR Over Time
Shares Held
Position Value (USD)
Derivatives in ICLR
reported options exposure · as of Jun 30, 2026CallValue
$14,400,559
CallShares
82,900
PutValue
$10,092,551
PutShares
58,100
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, 2026CITADEL ADVISORS LLC holds $1,783,709,630 across 35 Diagnostics & Research names. ICLR ranks #15 (1.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
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 ICLR
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $10,092,551 | 58,100 | Put | Defined | 2026-08-14 | |
| 2026-06-30 | $25,808,614 | 148,573 | Shares | Defined | 2026-08-14 | |
| 2026-06-30 | $14,400,559 | 82,900 | Call | Defined | 2026-08-14 | |
| 2026-03-31 | $27,842,830 | 251,607 | Shares | Defined | 2026-05-15 | |
| 2026-03-31 | $2,578,378 | 23,300 | Call | Defined | 2026-05-15 | |
| 2026-03-31 | $1,338,986 | 12,100 | Put | Defined | 2026-05-15 | |
| 2025-12-31 | $7,646,861 | 41,965 | Shares | Defined | 2026-02-17 | |
| 2025-12-31 | $4,446,168 | 24,400 | Call | Defined | 2026-02-17 | |
| 2025-12-31 | $2,077,308 | 11,400 | Put | Defined | 2026-02-17 | |
| 2025-09-30 | $47,246,325 | 269,979 | Shares | Defined | 2025-11-14 | |
| 2025-09-30 | $4,585,000 | 26,200 | Put | Defined | 2025-11-14 | |
| 2025-09-30 | $2,327,500 | 13,300 | Call | Defined | 2025-11-14 | |
| 2025-06-30 | $2,632,645 | 18,100 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $283,066,353 | 1,946,142 | Shares | Defined | 2025-08-14 | |
| 2025-06-30 | $8,276,105 | 56,900 | Call | Defined | 2025-08-14 | |
| 2025-03-31 | $8,364,522 | 47,800 | Put | Defined | 2025-05-15 | |
| 2025-03-31 | $8,574,510 | 49,000 | Call | Defined | 2025-05-15 | |
| 2025-03-31 | $123,423,946 | 705,320 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $46,597,562 | 222,200 | Put | Defined | 2025-02-14 | |
| 2024-12-31 | $119,871,283 | 571,605 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $4,592,649 | 21,900 | Call | Defined | 2025-02-14 | |
| 2024-09-30 | $2,011,170 | 7,000 | Put | Defined | 2024-11-14 | |
| 2024-09-30 | $166,653,877 | 580,049 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $3,562,644 | 12,400 | Call | Defined | 2024-11-14 | |
| 2024-06-30 | $10,469,898 | 33,400 | Call | Defined | 2024-08-14 | |
| 2024-06-30 | $2,256,984 | 7,200 | Put | Defined | 2024-08-14 | |
| 2024-06-30 | $426,384,087 | 1,360,207 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $2,150,080 | 6,400 | Put | Defined | 2024-05-15 | |
| 2024-03-31 | $3,863,425 | 11,500 | Call | Defined | 2024-05-15 | |
| 2024-03-31 | $297,721,241 | 886,207 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $2,377,788 | 8,400 | Put | Defined | 2024-02-14 | |
| 2023-12-31 | $243,915,473 | 861,679 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $2,462,709 | 8,700 | Call | Defined | 2024-02-14 | |
| 2023-09-30 | $3,816,875 | 15,500 | Put | Defined | 2023-11-14 | |
| 2023-09-30 | $366,312,881 | 1,487,565 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $8,914,250 | 36,200 | Call | Defined | 2023-11-14 | |
| 2023-06-30 | $27,683,629 | 110,646 | Shares | Defined | 2023-08-14 | |
| 2023-06-30 | $2,351,880 | 9,400 | Put | Defined | 2023-08-14 | |
| 2023-06-30 | $7,455,960 | 29,800 | Call | Defined | 2023-08-14 | |
| 2023-03-31 | $1,708,720 | 8,000 | Put | Defined | 2023-05-15 | |
| 2023-03-31 | $9,120,293 | 42,700 | Call | Defined | 2023-05-15 | |
| 2023-03-31 | $1,811,883 | 8,483 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $641,025 | 3,300 | Put | Defined | 2023-02-14 | |
| 2022-12-31 | $2,117,325 | 10,900 | Call | Defined | 2023-02-14 | |
| 2022-12-31 | $5,550,305 | 28,573 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $4,917,217 | 26,756 | Shares | Defined | 2022-11-14 | |
| 2022-09-30 | $1,654,020 | 9,000 | Put | Defined | 2022-11-14 | |
| 2022-09-30 | $3,087,504 | 16,800 | Call | Defined | 2022-11-14 | |
| 2022-06-30 | $3,900,600 | 18,000 | Put | Defined | 2022-08-15 | |
| 2022-06-30 | $4,485,690 | 20,700 | Call | Defined | 2022-08-15 | |
| No filing history on record for this holder in this stock. | ||||||