Position in RDNT
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$239,488,650
-$41,523,325 QoQ
Shares Held
4,285,000
+8.8% QoQ
Ownership
5.45%
of shares outstanding
% of Portfolio
2.38%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2023
10 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in RDNT Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026RTW INVESTMENTS, LP holds $723,822,310 across 7 Diagnostics & Research names. RDNT ranks #2 (33.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | NTRA |
Natera, Inc.
|
1,250,000 | $249,987,500 | |
| 2 | RDNT |
RadNet, Inc.
This page
|
4,285,000 | $239,488,650 | |
| 3 | GH |
Guardant Health, Inc.
|
1,481,033 | $136,803,018 | |
| 4 | CSTL |
Castle Biosciences Inc
|
2,758,335 | $67,717,124 | |
| 5 | FLGT |
Fulgent Genetics, Inc.
|
1,289,000 | $20,495,100 | |
| 6 | FRNM |
Freenome, Inc.
|
742,500 | $8,145,225 | |
| 7 | XGN |
Exagen Inc.
|
395,231 | $1,185,693 |
All Filings in RDNT
Export CSV
10 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $239,488,650 | 4,285,000 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $281,011,975 | 3,938,500 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $214,572,608 | 2,815,544 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $153,107,477 | 2,690,344 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $115,230,177 | 2,317,582 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $138,184,166 | 1,978,582 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $125,499,031 | 1,808,604 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $109,356,109 | 1,856,010 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $82,748,763 | 1,700,550 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $23,073,441 | 663,602 | Shares | Sole | 2024-02-14 | |
| No filing history on record for this holder in this stock. | ||||||