RadNet, Inc. (RDNT) Insider Trading
Over the last 3 months, RDNT insiders made 0 open-market buys and 4 sales, a net sale of -$3.0M (SEC Form 4). Over the last 6 months, 270 institutions increased and 231 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
4
Net (3m)
-$3.0M
Insider trades by month Buys Sells
Aug
Sep
Nov
Dec
Mar
Jun
Context3-month price +10.3%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 22, 2026 | SWARTZ DAVID Ldirector | Sell | 2,699 | $53.89 |
| Jun 18, 2026 | Wesdorp Cornelisofficer: Pres & CEO, Digital Health | Sell | 4,750 | $58.11 |
| Jun 16, 2026 | Forthuber Stephen Mofficer: Pres & CEO-Eastern Operations | Sell | 24,214 | $57.79 |
| Jun 16, 2026 | Forthuber Stephen Mofficer: Pres & CEO-Eastern Operations | Sell | 19,853 | $58.61 |
| Jun 3, 2026 | Jacobs Laura Pastredirector | Grant | 2,946 | — |
| Jun 3, 2026 | SWARTZ DAVID Ldirector | Grant | 2,946 | — |
| Jun 3, 2026 | SPURLOCK GREGORY E.director | Grant | 2,946 | — |
| Jun 3, 2026 | Levitt Lawrence Ldirector | Grant | 2,946 | — |
| May 6, 2026 | Berger Howard Gdirector, officer: President, CEO | Option | 25,992 | $18.64 |
| Mar 23, 2026 | Sorensen Alma Gregorydirector, officer: Chief Strategy Officer | Sell | 100 | $63.59 |
| Mar 23, 2026 | Sorensen Alma Gregorydirector, officer: Chief Strategy Officer | Sell | 9,554 | $61.84 |
| Mar 23, 2026 | Sorensen Alma Gregorydirector, officer: Chief Strategy Officer | Sell | 5,346 | $62.82 |
| Mar 18, 2026 | Sorensen Alma Gregorydirector, officer: Chief Strategy Officer | Tax | 5,919 | $61.72 |
| Mar 18, 2026 | Sorensen Alma Gregorydirector, officer: Chief Strategy Officer | Sell | 14,200 | $62.12 |
| Mar 18, 2026 | Sorensen Alma Gregorydirector, officer: Chief Strategy Officer | Sell | 800 | $62.72 |
| Mar 12, 2026 | Sorensen Alma Gregorydirector, officer: Chief Strategy Officer | Option | 3,742 | — |
| Mar 12, 2026 | Sorensen Alma Gregorydirector, officer: Chief Strategy Officer | Option | 4,987 | — |
| Mar 12, 2026 | Sorensen Alma Gregorydirector, officer: Chief Strategy Officer | Option | 2,493 | — |
| Mar 12, 2026 | Sorensen Alma Gregorydirector, officer: Chief Strategy Officer | Option | 16,831 | — |
| Mar 12, 2026 | Sorensen Alma Gregorydirector, officer: Chief Strategy Officer | Option | 6,237 | — |
| Mar 12, 2026 | Sorensen Alma Gregorydirector, officer: Chief Strategy Officer | Option | 8,727 | — |
| Mar 12, 2026 | Sorensen Alma Gregorydirector, officer: Chief Strategy Officer | Option | 7,481 | — |
| Mar 12, 2026 | Sorensen Alma Gregorydirector, officer: Chief Strategy Officer | Option | 12,466 | — |
| Mar 5, 2026 | Murdock Michael Nofficer: EVP, Mergers and Acquisitions | Grant | 6,613 | — |
| Mar 5, 2026 | HAMES NORMAN Rofficer: Pres and COO-West Operations | Grant | 3,100 | — |
| Mar 5, 2026 | Sorensen Alma Gregorydirector, officer: EVP, Chief Science Officer | Grant | 16,533 | — |
| Mar 5, 2026 | HAMES NORMAN Rofficer: Pres and COO-West Operations | Grant | 22,045 | — |
| Mar 5, 2026 | Forthuber Stephen Mofficer: Pres & COO-Eastern Operations | Grant | 22,045 | — |
| Mar 5, 2026 | Berger Howard Gdirector, officer: President, CEO | Grant | 124,001 | — |
| Mar 5, 2026 | STOLPER MARKofficer: EVP, Chief Financial Officer | Grant | 18,228 | — |
Source: RDNT SEC Form 4 filings, latest Jun 22, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their RDNT positions over the last 6 months (SEC Form 13F).
Increased
270
New positions
98
Reduced
231
Sold out
80
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 10.0M | May 13, 2026 |
| BLACKROCK, INC. | Increased | 10.0M | Feb 12, 2026 |
| VANGUARD GROUP INC | Reduced | 7.5M | Jan 29, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 6.2M | May 15, 2026 |
| RTW INVESTMENTS, LP | Increased | 4.3M | May 15, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 4.2M | May 15, 2026 |
| RTW INVESTMENTS, LP | Increased | 3.9M | Feb 17, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 3.9M | May 8, 2026 |
| BECK MACK & OLIVER LLC | Reduced | 3.2M | Feb 12, 2026 |
| BECK MACK & OLIVER LLC | Reduced | 3.2M | May 12, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 2.7M | Feb 17, 2026 |
| STATE STREET CORP | Increased | 2.7M | May 15, 2026 |
| STATE STREET CORP | Increased | 2.6M | Feb 13, 2026 |
| VAN BERKOM & ASSOCIATES INC. | Increased | 2.1M | May 14, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.7M | May 15, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.