InsiderSource
RDNT

RadNet, Inc.

SEC CIK 790526
$56.71 −16.2% · 90 days
90-day buys
$0
0 open-market
90-day sells
$1.87M
5 open-market
Net insider flow
−$1.87M
Net selling
Filings shown
35
Most recent
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At a glance

Over the last 90 days, insiders at RDNT have sold a net $1.87M of stock (0 open-market buys vs 5 sells).

Largest recent trade: Forthuber Stephen M sold $2.48M of RDNT, trimming their stake 6%.

Most active filer: Sorensen Alma Gregory, with 9 transactions among the recent filings shown.

Insider transaction history

Form 4 filings for RDNT, newest first
View on SEC EDGAR ↗
RDNT
RadNet, Inc.
Option exercise Berger Howard G · Director, President, CEO · Option exercise · filed May 6, 2026 ΔOwn +5.5%
+$484.5K
25,992 sh @ $19
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RDNT
RadNet, Inc.
Sell Sorensen Alma Gregory · Director, Chief Strategy Officer · Open-market sale · filed Mar 23, 2026 ΔOwn −0.8%

Sorensen Alma Gregory sold $590.8K of RDNT, trimming their stake 1%.

−$590.8K
9,554 sh @ $62
RDNT
RadNet, Inc.
Sell Sorensen Alma Gregory · Director, Chief Strategy Officer · Open-market sale · filed Mar 23, 2026 ΔOwn −0.4%

Sorensen Alma Gregory sold $335.8K of RDNT.

−$335.8K
5,346 sh @ $63
RDNT
RadNet, Inc.
Sell Sorensen Alma Gregory · Director, Chief Strategy Officer · Open-market sale · filed Mar 23, 2026

Sorensen Alma Gregory sold $6.4K of RDNT.

−$6.4K
100 sh @ $64
RDNT
RadNet, Inc.
Sell Sorensen Alma Gregory · Director, Chief Strategy Officer · Open-market sale · filed Mar 18, 2026 ΔOwn −1.1%

Sorensen Alma Gregory sold $882.1K of RDNT, trimming their stake 1%.

−$882.1K
14,200 sh @ $62
RDNT
RadNet, Inc.
Sell Sorensen Alma Gregory · Director, Chief Strategy Officer · Open-market sale · filed Mar 18, 2026 ΔOwn −0.1%

Sorensen Alma Gregory sold $50.2K of RDNT.

−$50.2K
800 sh @ $63
RDNT
RadNet, Inc.
Tax withholding Sorensen Alma Gregory · Director, Chief Strategy Officer · Tax withholding · filed Mar 18, 2026 ΔOwn −0.5%
−$365.3K
5,919 sh @ $62
RDNT
RadNet, Inc.
Grant/award Patel Mital · EVP of Fin Planning, CAO · Grant/award · filed Mar 5, 2026 ΔOwn +12%
+$0
20,667 sh
RDNT
RadNet, Inc.
Grant/award STOLPER MARK · EVP, Chief Financial Officer · Grant/award · filed Mar 5, 2026 ΔOwn +18%
+$0
18,228 sh
RDNT
RadNet, Inc.
Grant/award HAMES NORMAN R · Pres and COO-West Operations · Grant/award · filed Mar 5, 2026 ΔOwn +16%
+$0
3,100 sh
RDNT
RadNet, Inc.
Grant/award Berger Howard G · Director, President, CEO · Grant/award · filed Mar 5, 2026 ΔOwn +36%
+$0
124,001 sh
RDNT
RadNet, Inc.
Option exercise STOLPER MARK · EVP, Chief Financial Officer · Option exercise · filed Dec 12, 2025 ΔOwn +52%
+$216.7K
35,703 sh @ $6
RDNT
RadNet, Inc.
Option exercise Katz David Jeffrey · EVP and Chief Legal Officer · Option exercise · filed Dec 12, 2025 ΔOwn +5.0%
+$100K
3,396 sh @ $29
RDNT
RadNet, Inc.
Sell Forthuber Stephen M · Pres & COO-Eastern Operations · Open-market sale · filed Dec 9, 2025 ΔOwn −5.5%

Forthuber Stephen M sold $2.48M of RDNT, trimming their stake 6%.

−$2.48M
31,790 sh @ $78
RDNT
RadNet, Inc.
Sell Forthuber Stephen M · Pres & COO-Eastern Operations · Open-market sale · filed Dec 9, 2025 ΔOwn −2.1%

Forthuber Stephen M sold $916.9K of RDNT, trimming their stake 2%.

−$916.9K
11,598 sh @ $79
RDNT
RadNet, Inc.
Sell Forthuber Stephen M · Pres & COO-Eastern Operations · Open-market sale · filed Dec 9, 2025 ΔOwn −0.3%

Forthuber Stephen M sold $135.6K of RDNT.

−$135.6K
1,700 sh @ $80
RDNT
RadNet, Inc.
Gift Patel Mital · EVP of Fin Planning, CAO · Gift · filed Dec 5, 2025 ΔOwn −0.3%
−$0
630 sh
RDNT
RadNet, Inc.
Option exercise Forthuber Stephen M · Pres & COO-Eastern Operations · Option exercise · filed Dec 3, 2025 ΔOwn +7.3%
+$237.5K
39,127 sh @ $6
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About RDNT insider activity

This page tracks every recent Form 4 filed for RadNet, Inc. with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.

The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.

Frequently asked questions

How often is RDNT insider data updated?

Continuously. We read from SEC EDGAR, so new Form 4 filings for RadNet, Inc. usually appear here within minutes of being accepted by the SEC.

What does "net insider flow" mean?

It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.

Why do some rows show grants or option exercises instead of buys?

Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.

Is this investment advice?

No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.