Position in RDNT
as of Mar 31, 2026
· filed May 11, 2026
Position Value
$481,157
+$481,157 QoQ
Shares Held
8,609
Ownership
0.011%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2021
8 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in RDNT Over Time
Shares Held
Position Value (USD)
Derivatives in RDNT
reported options exposure · as of Dec 31, 2025CallValue
$784,850
CallShares
11,000
PutValue
$57,080
PutShares
800
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. RDNT ranks #5 (5.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CRL |
Charles River Laboratories International, Inc.
|
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.
This page
|
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 RDNT
Export CSV
19 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $481,157 | 8,609 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $57,080 | 800 | Put | Sole | 2026-02-13 | |
| 2025-12-31 | $784,850 | 11,000 | Call | Sole | 2026-02-13 | |
| 2025-06-30 | $113,820 | 2,000 | Put | Sole | 2025-08-13 | |
| 2025-06-30 | $5,918 | 104 | Shares | Sole | 2025-08-13 | |
| 2025-06-30 | $102,438 | 1,800 | Call | Sole | 2025-08-13 | |
| 2025-03-31 | $144,188 | 2,900 | Call | Sole | 2025-05-14 | |
| 2025-03-31 | $278,432 | 5,600 | Put | Sole | 2025-05-14 | |
| 2024-12-31 | $153,648 | 2,200 | Call | Sole | 2025-02-13 | |
| 2024-12-31 | $1,252,370 | 17,932 | Shares | Sole | 2025-02-13 | |
| 2024-12-31 | $2,123,136 | 30,400 | Put | Sole | 2025-02-13 | |
| 2023-09-30 | $188,873 | 6,700 | Put | Sole | 2023-11-21 | |
| 2023-09-30 | $36,731 | 1,303 | Shares | Sole | 2023-11-21 | |
| 2023-09-30 | $307,271 | 10,900 | Call | Sole | 2023-11-21 | |
| 2023-06-30 | $430,584 | 13,200 | Put | Sole | 2023-08-14 | |
| 2023-06-30 | $140,266 | 4,300 | Call | Sole | 2023-08-14 | |
| 2023-06-30 | $67,229 | 2,061 | Shares | Sole | 2023-08-14 | |
| 2021-06-30 | $993,855 | 29,500 | Call | Sole | 2021-08-16 | |
| 2021-06-30 | $232,461 | 6,900 | Put | Sole | 2021-08-16 | |
| No filing history on record for this holder in this stock. | ||||||