RDNT

RADNET INC
USCUSIP 750491102
Institutional Owners
138
+15 QoQ
13F Value Held
$1.6B
Insider Net · 180d
$0
0↑ 0↓
Recent Filings
4
Smart-money sentimentBullish
BearishBullish
13F funds (latest Q)65 adding · 24 trimming
Insider net (180d)+$0
Price history not yet available for RDNT.

Top institutional holders

138 13F filers
#FundPosition valueSharesLast moveAs of
1RTW INVESTMENTS, LP
$239.5M
4.29MAddedQ1 2026
2VANGUARD PORTFOLIO MANAGEMENT LLC
$217.9M
3.90MNewQ1 2026
3VANGUARD CAPITAL MANAGEMENT LLC
$173.9M
3.11MNewQ1 2026
4STATE STREET CORP
$148.2M
2.65MAddedQ1 2026
5Hood River Capital Management LLC
$78.9M
1.41MAddedQ1 2026
6Alyeska Investment Group, L.P.
$73.2M
1.31MAddedQ1 2026
7Point72 Asset Management, L.P.
$47.8M
855.4KAddedQ1 2026
8Allspring Global Investments Holdings, LLC
$46.7M
844.7KReducedQ1 2026
9FULLER & THALER ASSET MANAGEMENT, INC.
$45.1M
806.3KAddedQ1 2026
10Polar Capital Holdings Plc
$41.0M
734.3KAddedQ1 2026
11Rockefeller Capital Management L.P.
$37.0M
519.0KNewQ4 2025
12Global Alpha Capital Management Ltd.
$36.8M
658.2KAddedQ1 2026
13PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.
$33.3M
595.3KReducedQ1 2026
14WESTFIELD CAPITAL MANAGEMENT CO LP
$29.7M
531.9KAddedQ1 2026
15VANGUARD FIDUCIARY TRUST CO
$26.6M
476.5KNewQ1 2026
16Tidal Investments LLC
$24.7M
442.1KAddedQ1 2026
17SOROS FUND MANAGEMENT LLC
$24.5M
438.4KReducedQ1 2026
18EMERALD ADVISERS, LLC
$21.3M
381.8KReducedQ1 2026
19Freestone Grove Partners LP
$20.4M
365.4KAddedQ1 2026
20PICTON MAHONEY ASSET MANAGEMENT
$17.3M
309.1KAddedQ1 2026
21SEGALL BRYANT & HAMILL, LLC
$16.9M
301.8KNewQ1 2026
22PALISADE CAPITAL MANAGEMENT, LP
$16.3M
291.3KAddedQ1 2026
23EMERALD MUTUAL FUND ADVISERS TRUST
$14.0M
250.6KReducedQ1 2026
24PUBLIC SECTOR PENSION INVESTMENT BOARD
$13.9M
249.2KAddedQ1 2026
25MAIRS & POWER INC
$7.4M
133.1KAddedQ1 2026

Fund activity — latest quarter

Opened (NEW)
21
funds
Added
44
funds
Reduced
24
funds
Exited
0
funds

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$0
0 insiders
Net
$0
0 P/S txns
Signal
Mixed
open-market
DateInsiderRoleActionSharesValue
Jun 2, 2026SWARTZ DAVID LDirectoracquired (A)2.9K$0
Jun 2, 2026Levitt Lawrence LDirectoracquired (A)2.9K$0
Jun 2, 2026SPURLOCK GREGORY E.Directoracquired (A)2.9K$0
Jun 2, 2026Jacobs Laura PastreDirectoracquired (A)2.9K$0

Institutional ownership over time

131 funds+129 since Q2 2022
066131Q2 2022Q1 2023Q4 2023Q3 2024Q2 2025Q1 2026
funds holding aggregate valuelatest $1.3B

Funds that own RDNT also own

CompanyCo-held byCombined value
Microsoft Corp.MSFT125 funds$167.8B
Meta Platforms Inc.META123 funds$76.5B
Alphabet, Inc.GOOGL121 funds$99.8B
Broadcom LtdAVGO121 funds$87.0B
Lilly Eli & CoLLY121 funds$47.5B
Nvidia Corp. (US)NVDA120 funds$250.2B
Amazon.com IncAMZN119 funds$124.7B
Jpmorgan Chase & Co - USJPM118 funds$54.2B
Mastercard Inc.MA118 funds$27.3B
Alphabet, Inc. - C SharesGOOG117 funds$79.2B
Micron Technology Inc - USMU117 funds$26.3B
Unitedhealth Group Inc - USUNH117 funds$16.8B

Ranked by how many of RDNT's institutional holders also hold each name — a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

4 shown

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for RDNT. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.