Walleye Trading LLC
Position in CRL — Charles River Laboratories International, Inc.
CIK 1388391
NEW YORK, NY
Position in CRL
as of Mar 31, 2026
· filed May 11, 2026
Position Value
$5,461,522
+$5,275,009 QoQ
Shares Held
31,661
+3286.2% QoQ
Ownership
0.066%
of shares outstanding
% of Portfolio
0.12%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in CRL Over Time
Shares Held
Position Value (USD)
Derivatives in CRL
reported options exposure · as of Mar 31, 2026CallValue
$1,466,250
CallShares
8,500
PutValue
$10,419,000
PutShares
60,400
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, 2026Walleye Trading LLC holds $9,391,151 across 9 Diagnostics & Research names. CRL ranks #1 (58.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CRL |
Charles River Laboratories International, Inc.
This page
|
31,661 | $5,461,522 | |
| 2 | A |
Agilent Technologies, Inc.
|
11,098 | $1,264,950 | |
| 3 | QGEN |
Qiagen N.V.
|
29,434 | $1,178,537 | |
| 4 | IQV |
Iqvia Holdings Inc.
|
3,564 | $607,804 | |
| 5 | RDNT |
RadNet, Inc.
|
8,609 | $481,157 | |
| 6 | WAT |
Waters Corp /De/
|
693 | $206,375 | |
| 7 | DGX |
Quest Diagnostics Inc
|
549 | $107,593 | |
| 8 | NTRA |
Natera, Inc.
|
260 | $51,997 |
All Filings in CRL
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,466,250 | 8,500 | Call | Sole | 2026-05-11 | |
| 2026-03-31 | $10,419,000 | 60,400 | Put | Sole | 2026-05-11 | |
| 2026-03-31 | $5,461,522 | 31,661 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $139,636 | 700 | Put | Sole | 2026-02-13 | |
| 2025-12-31 | $186,513 | 935 | Shares | Sole | 2026-02-13 | |
| 2025-12-31 | $518,648 | 2,600 | Call | Sole | 2026-02-13 | |
| 2025-09-30 | $688,424 | 4,400 | Call | Sole | 2025-11-14 | |
| 2025-09-30 | $985,698 | 6,300 | Put | Sole | 2025-11-14 | |
| 2025-06-30 | $330,316 | 2,177 | Shares | Sole | 2025-08-13 | |
| 2025-06-30 | $151,730 | 1,000 | Put | Sole | 2025-08-13 | |
| 2025-06-30 | $197,249 | 1,300 | Call | Sole | 2025-08-13 | |
| 2025-03-31 | $299,233 | 1,988 | Shares | Sole | 2025-05-14 | |
| 2025-03-31 | $421,456 | 2,800 | Put | Sole | 2025-05-14 | |
| 2025-03-31 | $1,159,004 | 7,700 | Call | Sole | 2025-05-14 | |
| 2024-12-31 | $246,441 | 1,335 | Shares | Sole | 2025-02-13 | |
| 2024-12-31 | $590,720 | 3,200 | Put | Sole | 2025-02-13 | |
| 2024-12-31 | $1,144,520 | 6,200 | Call | Sole | 2025-02-13 | |
| 2024-09-30 | $1,369,729 | 6,954 | Shares | Sole | 2024-11-14 | |
| 2024-09-30 | $433,334 | 2,200 | Put | Sole | 2024-11-14 | |
| 2024-09-30 | $610,607 | 3,100 | Call | Sole | 2024-11-14 | |
| 2024-06-30 | $309,870 | 1,500 | Call | Sole | 2024-08-14 | |
| 2024-06-30 | $578,424 | 2,800 | Put | Sole | 2024-08-14 | |
| 2024-03-31 | $8,914,255 | 32,900 | Put | Sole | 2024-05-15 | |
| 2024-03-31 | $948,325 | 3,500 | Call | Sole | 2024-05-15 | |
| 2023-12-31 | $2,529,480 | 10,700 | Call | Sole | 2024-02-14 | |
| 2023-12-31 | $7,612,080 | 32,200 | Put | Sole | 2024-02-14 | |
| 2023-09-30 | $2,177,729 | 11,112 | Shares | Sole | 2023-11-21 | |
| 2023-09-30 | $2,684,926 | 13,700 | Call | Sole | 2023-11-21 | |
| 2023-09-30 | $7,819,602 | 39,900 | Put | Sole | 2023-11-21 | |
| 2023-06-30 | $3,258,875 | 15,500 | Call | Sole | 2023-08-14 | |
| 2023-06-30 | $3,931,675 | 18,700 | Put | Sole | 2023-08-14 | |
| 2023-03-31 | $1,755,834 | 8,700 | Put | Sole | 2023-05-15 | |
| 2023-03-31 | $2,098,928 | 10,400 | Call | Sole | 2023-05-15 | |
| 2022-12-31 | $1,067,710 | 4,900 | Call | Sole | 2023-02-14 | |
| 2022-12-31 | $740,860 | 3,400 | Put | Sole | 2023-02-14 | |
| 2022-09-30 | $393,600 | 2,000 | Call | Sole | 2022-11-14 | |
| 2022-09-30 | $78,720 | 400 | Put | Sole | 2022-11-14 | |
| 2022-06-30 | $3,102,565 | 14,500 | Call | Sole | 2022-08-08 | |
| 2022-03-31 | $349,567 | 1,231 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $263,746 | 700 | Put | Sole | 2022-02-14 | |
| 2021-12-31 | $981,888 | 2,606 | Shares | Sole | 2022-02-14 | |
| 2021-12-31 | $301,424 | 800 | Call | Sole | 2022-02-14 | |
| 2021-09-30 | $247,602 | 600 | Call | Sole | 2021-11-15 | |
| 2021-09-30 | $1,275,975 | 3,092 | Shares | Sole | 2021-11-15 | |
| 2021-09-30 | $288,869 | 700 | Put | Sole | 2021-11-15 | |
| 2021-06-30 | $888,177 | 2,401 | Shares | Sole | 2021-08-16 | |
| 2021-06-30 | $1,072,768 | 2,900 | Put | Sole | 2021-08-16 | |
| 2021-03-31 | $724,575 | 2,500 | Put | Sole | 2021-05-17 | |
| 2021-03-31 | $1,478,133 | 5,100 | Call | Sole | 2021-05-17 | |
| 2020-12-31 | $699,608 | 2,800 | Put | Sole | 2021-02-16 | |
| No filing history on record for this holder in this stock. | ||||||