Position in RDNT
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$298,911,899
+$59,423,249 QoQ
Shares Held
4,846,958
+13.1% QoQ
Ownership
6.16%
of shares outstanding
% of Portfolio
2.55%
of 13F equity value
Holder Rank
#2
of 328 holders
Holding Since
Dec 2023
11 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 Jun 30, 2026RTW INVESTMENTS, LP holds $911,620,118 across 7 Diagnostics & Research names. RDNT ranks #1 (32.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | RDNT |
RadNet, Inc.
This page
|
4,846,958 | $298,911,899 | |
| 2 | NTRA |
Natera, Inc.
|
1,000,000 | $271,450,000 | |
| 3 | GH |
Guardant Health, Inc.
|
1,481,033 | $222,199,380 | |
| 4 | CSTL |
Castle Biosciences Inc
|
2,778,335 | $66,263,289 | |
| 5 | DHR |
Danaher Corp /De/
|
230,000 | $43,810,400 | |
| 6 | FRNM |
Freenome, Inc.
|
742,500 | $8,078,400 | |
| 7 | XGN |
Exagen Inc.
|
195,000 | $906,750 |
All Filings in RDNT
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11 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $298,911,899 | 4,846,958 | Shares | Sole | 2026-08-14 | |
| 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. | ||||||