RadNet
RDNT
307 hedge funds and large institutions have $3.43B invested in RadNet in 2025 Q1 according to their latest regulatory filings, with 44 funds opening new positions, 122 increasing their positions, 106 reducing their positions, and 65 closing their positions.
803% more call options, than puts
Call options by funds: $72.4M | Put options by funds: $8.01M
15% more repeat investments, than reductions
Existing positions increased: 122 | Existing positions reduced: 106
6.14% more ownership
Funds ownership: 86.88% → 93.02% (+6.1%)
7% less funds holding
Funds holding: 330 → 307 (-23)
24% less capital invested
Capital invested by funds: $4.49B → $3.43B (-$1.07B)
32% less first-time investments, than exits
New positions opened: 44 | Existing positions closed: 65
44% less funds holding in top 10
Funds holding in top 10: 9 → 5 (-4)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
American Century Companies
Kansas City,
Missouri
|
+$62.9M |
| 2 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
+$44M |
| 3 |
Alyeska Investment Group
Chicago,
Illinois
|
+$42.1M |
| 4 |
BAMCO Inc
New York
|
+$39.9M |
| 5 |
Millennium Management
New York
|
+$39.1M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Marshall Wace
London,
United Kingdom
|
-$62.2M |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
-$40.6M |
| 3 |
MP
Munro Partners
Melbourne,
Australia
|
-$31.1M |
| 4 |
Goldman Sachs
New York
|
-$25.7M |
| 5 |
CI Investments Inc
Toronto,
Ontario, Canada
|
-$19.5M |
RDNT Hedge Fund Activity: Q1 2025 in Review
307 of the 7,471 institutional investors tracked by Wall St. Rank reported a position in RadNet (RDNT) for Q1 2025, worth a combined $3.43B — down 24% from $4.49B a quarter earlier.
Sellers outnumbered buyers: 65 funds closed out of RDNT and 44 opened new positions — a net loss of 21 holders — while 106 trimmed existing stakes and 122 added.
The largest buyer was American Century Companies, adding an estimated $62.9M. The largest seller was Marshall Wace, cutting an estimated $62.2M.
- 307 institutional investors held RadNet (RDNT) as of Q1 2025, down from 330 in Q4 2024.
- Funds reported $3.43B of RadNet stock for Q1 2025, down 24% quarter-over-quarter.
- 44 funds opened new RadNet positions in Q1 2025 and 65 closed out, a net change of -21 holders.
- The largest RadNet buyer in Q1 2025 was American Century Companies, an estimated $62.9M added.
- The largest RadNet seller in Q1 2025 was Marshall Wace, an estimated $62.2M sold.
Based on aggregated 13F filings for Q1 2025.