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RadNet
RDNT

328 hedge funds and large institutions have $5.65B invested in RadNet in 2025 Q3 according to their latest regulatory filings, with 43 funds opening new positions, 144 increasing their positions, 96 reducing their positions, and 40 closing their positions.

New
Increased
Maintained
Reduced
Closed

50% more repeat investments, than reductions

Existing positions increased: 144 | Existing positions reduced: 96

40% more capital invested

Capital invested by funds: $4.03B → $5.65B (+$1.62B)

20% more funds holding in top 10

Funds holding in top 10: 5 → 6 (+1)

1.91% more ownership

Funds ownership: 94.45% → 96.36% (+1.9%)

8% more first-time investments, than exits

New positions opened: 43 | Existing positions closed: 40

6% more call options, than puts

Call options by funds: $6.12M | Put options by funds: $5.8M

0% more funds holding

Funds holding: 328 → 328 (0)

Holders
328
Holders Change
–
Holders Change %
0%
% of All Funds
4.31%
Holding in Top 10
6
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+20%
% of All Funds
0.08%
New
43
Increased
144
Reduced
96
Closed
40
Calls
$6.12M
Puts
$5.8M
Net Calls
+$324K
Net Calls Change
-$729K

Top Buyers

1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$125M
2
PCH
Polar Capital Holdings
United Kingdom
+$54M
3
VBA
Van Berkom & Associates
Quebec, Canada
+$53.1M
4
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management
California
+$45.8M
5
Westfield Capital Management
Westfield Capital Management
Massachusetts
+$34.1M

Top Sellers

1
Invesco
Invesco
Georgia
-$23.8M
2
Point72 Asset Management
Point72 Asset Management
Connecticut
-$21.4M
3
Millennium Management
Millennium Management
New York
-$20.2M
4
HCA
Harbor Capital Advisors
Illinois
-$19.7M
5
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
-$17.4M
Name Holding Trade Value Shares
Change 		Change in
Stake
BlackRock
1
BlackRock
New York
$720M +$10.2M +157,388 +2%
Vanguard Group
2
Vanguard Group
Pennsylvania
$570M +$6.17M +95,015 +1%
BMO
3
Beck Mack & Oliver
New York
$250M +$885K +13,633 +0.4%
RI
4
RTW Investments
New York
$215M +$8.13M +125,200 +5%
State Street
5
State Street
Massachusetts
$193M +$3.6M +55,476 +2%
T. Rowe Price Associates
6
T. Rowe Price Associates
Maryland
$158M +$125M +1,924,549 +1,313%
Allspring Global Investments
7
Allspring Global Investments
North Carolina
$136M -$3.8M -58,459 -3%
Geode Capital Management
8
Geode Capital Management
Massachusetts
$127M +$1.6M +24,700 +2%
JCP
9
JB Capital Partners
New York
$109M -$3.25M -50,000 -3%
Ameriprise
10
Ameriprise
Minnesota
$108M +$1.25M +19,182 +1%
Dimensional Fund Advisors
11
Dimensional Fund Advisors
Texas
$105M -$1.95M -30,018 -2%
HRCM
12
Hood River Capital Management
Florida
$105M -$380K -5,848 -0.4%
American Century Companies
13
American Century Companies
Missouri
$96.3M -$3.94M -60,652 -5%
Invesco
14
Invesco
Georgia
$96.2M -$23.8M -366,824 -23%
ClearBridge Investments
15
ClearBridge Investments
New York
$90.4M -$1.38M -21,292 -2%
Alyeska Investment Group
16
Alyeska Investment Group
Illinois
$87.8M +$19.2M +296,392 +35%
Principal Financial Group
17
Principal Financial Group
Iowa
$87M -$5.18M -79,700 -7%
T. Rowe Price Investment Management
18
T. Rowe Price Investment Management
Maryland
$81.7M -$17.4M -267,890 -20%
Goldman Sachs
19
Goldman Sachs
New York
$79.7M +$14M +215,400 +26%
Rockefeller Capital Management
20
Rockefeller Capital Management
New York
$66.8M -$13.8M -213,223 -20%
PCH
21
Polar Capital Holdings
United Kingdom
$63.4M +$54M +832,214 New
VBA
22
Van Berkom & Associates
Quebec, Canada
$62.8M +$53.1M +817,808 +14,164%
BAMCO Inc
23
BAMCO Inc
New York
$61.7M +$4.29K +66 +0%
Loomis, Sayles & Company
24
Loomis, Sayles & Company
Massachusetts
$59.3M -$1.3M -20,090 -3%
Northern Trust
25
Northern Trust
Illinois
$57.6M +$1.26M +19,474 +3%
1
2 3 4 5

RDNT Hedge Fund Activity: Q3 2025 in Review

328 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in RadNet (RDNT) for Q3 2025, worth a combined $5.65B — up 40% from $4.03B a quarter earlier.

Buyers outnumbered sellers: 43 funds opened new RDNT positions and 40 closed out — a net gain of 3 holders — while 144 added to existing stakes and 96 trimmed.

The largest buyer was T. Rowe Price Associates, adding an estimated $125M. The largest seller was Invesco, cutting an estimated $23.8M.

  • 328 institutional investors held RadNet (RDNT) as of Q3 2025, unchanged from Q2 2025.
  • Funds reported $5.65B of RadNet stock for Q3 2025, up 40% quarter-over-quarter.
  • 43 funds opened new RadNet positions in Q3 2025 and 40 closed out, a net change of +3 holders.
  • The largest RadNet buyer in Q3 2025 was T. Rowe Price Associates, an estimated $125M added.
  • The largest RadNet seller in Q3 2025 was Invesco, an estimated $23.8M sold.

Based on aggregated 13F filings for Q3 2025.