RadNet RDNT Insider Ownership

NASDAQ RDNT

$69.27 +0.47 (+0.68%)

At close: Oct 19, 2026 · 4:00 PM EDT

Insider Holdings by Owner

3.08Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

4.58%

■0% pp QoQ

Shares Held by Insiders

3.60Mn

filed for Sep 2026

■0.00% QoQ

Shares Outstanding

78.65Mn

78,646,805 shares

Direct Holdings

3.52Mn

Indirect: 79.92K

Net Shares Traded (QoQ)

no net change in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 10, 2026

Over the past 12 months, RadNet insiders sold $12.28 million of stock on the open market (176.6K shares) and made no open-market purchases.

A count shows 5 insiders selling RDNT stock on the open market over the past 12 months and none buying.
Stephen M. Forthuber (President & CEO Eastern Operations) sold the most RadNet stock on the open market over the past 12 months, $6.09 million (89.16K shares), most recently on June 15, 2026.
The latest open-market trade on record is a sale of 2.7K shares for $145,449 by David L. Swartz (Director) on June 18, 2026.
Away from the open market, RDNT insiders received 253.75K shares in stock awards, acquired 297.14K shares through option exercises and conversions, gave up 5.92K shares to cover taxes or exercise prices and gave away 13.42K shares as gifts over the last 12 months.
According to Business Quant data, insiders at RadNet reported 3.6Mn shares in total in their latest Form 4 filings, or 4.58% of the 78.65Mn shares outstanding; that total is unchanged from 3.6Mn shares at the end of Q2 2026 and up 11.85% from 3.22Mn shares at the end of Q3 2025.
Direct holdings account for 3.52Mn shares (97.78%) of RDNT's insider total, and indirect holdings through trusts, partnerships and family members for 79.92K shares (2.22%).
The insider holdings in RadNet belong to 14 insiders who have reported on Form 4 within the past two years.
RadNet's three biggest insider holders are Alma Gregory Sorensen (Chief Strategy Officer, 1.2Mn shares), Howard G. Berger (President, CEO, 518.32K shares) and Stephen M. Forthuber (President & CEO Eastern Operations, 507.2K shares), based on their latest Form 4 filings.
Alma Gregory Sorensen holds 33.40% of the combined insider position in RadNet.
Over the past 12 months, 13 insiders reported transactions in RadNet stock in 30 Form 4 filings.
This summary of RadNet insider activity covers Form 4 filings through June 22, 2026.

Form 4 Holdings

Insiders Holding RDNT

Insiders 16

Shares held 3.08Mn

Of outstanding 3.92%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Alma Gregory Sorensen	Chief Strategy Officer	1,201,923	0	1,201,923	39.0%	23 Mar, 2026
2	Stephen M Forthuber	Pres Ceo Eastern Operations	507,199	0	507,199	16.4%	16 Jun, 2026
3	Norman R Hames	Pres And Coo West Operations	261,228	22,989	284,217	9.2%	05 Mar, 2026
4	Mital Patel	Evp Of Fin Planning, Cao	200,175	0	200,175	6.5%	05 Mar, 2026
5	David L Swartz	Director	177,013	0	177,013	5.7%	22 Jun, 2026
6	Lawrence L Levitt	Director	167,902	0	167,902	5.4%	03 Jun, 2026
7	Ranjan Jayanathan	Chief Information Officer	138,198	0	138,198	4.5%	21 Aug, 2025
8	Mark Stolper	Evp, Chief Financial Officer	121,943	0	121,943	4.0%	05 Mar, 2026
9	David Jeffrey Katz	Evp And Chief Legal Officer	90,866	0	90,866	2.9%	05 Mar, 2026
10	Cornelis Wesdorp	Pres Ceo, Digital Health	69,075	0	69,075	2.2%	18 Jun, 2026
11	Michael N Murdock	Evp, Mergers And Acquisitions	46,697	0	46,697	1.5%	05 Mar, 2026
12	Laura Pastre Jacobs	Director	29,953	0	29,953	1.0%	03 Jun, 2026
13	Howard G Berger	President, Ceo	0	19,910	19,910	0.6%	18 Jun, 2026
14	Christine Nayoma Gordon	Director	10,879	0	10,879	0.4%	11 Jun, 2024
15	Ruth Louisa Villigerwilson	Senior Vice President Of Hr	9,884	0	9,884	0.3%	06 Mar, 2023
16	Gregory E. Spurlock	Director	8,236	0	8,236	0.3%	03 Jun, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

974 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
18 Jun, 2026	David L Swartz	Director	Disposed S	2,699	$53.89	$145.45K	177,013	Direct
16 Jun, 2026	Cornelis Wesdorp	Pres Ceo, Digital Health	Disposed S	4,750	$58.11	$276.02K	69,075	Direct
16 Jun, 2026	Howard G Berger	President, Ceo	Disposed G	90	$0.00	$0	19,910	Indirect
15 Jun, 2026	Stephen M Forthuber	Pres Ceo Eastern Operations	Disposed S	24,214	$57.79	$1.40Mn	527,052	Direct
15 Jun, 2026	Stephen M Forthuber	Pres Ceo Eastern Operations	Disposed S	19,853	$58.61	$1.16Mn	507,199	Direct
02 Jun, 2026	David L Swartz	Director	Acquired A	2,946	$0.00	$0	179,712	Direct
02 Jun, 2026	Gregory E. Spurlock	Director	Acquired A	2,946	$0.00	$0	8,236	Direct
02 Jun, 2026	Laura Pastre Jacobs	Director	Acquired A	2,946	$0.00	$0	29,953	Direct
02 Jun, 2026	Lawrence L Levitt	Director	Acquired A	2,946	$0.00	$0	167,902	Direct
05 May, 2026	Howard G Berger	President, Ceo	Acquired M	25,992	$18.64	$484.49K	498,405	Direct
05 May, 2026	Howard G Berger	President, Ceo	Disposed M	25,992	$0.00	$0	25,992	Direct
19 Mar, 2026	Alma Gregory Sorensen	Chief Strategy Officer	Disposed S	9,554	$61.84	$590.82K	1,214,369	Direct
19 Mar, 2026	Alma Gregory Sorensen	Chief Strategy Officer	Disposed S	5,346	$62.82	$335.84K	1,209,023	Direct
19 Mar, 2026	Alma Gregory Sorensen	Chief Strategy Officer	Disposed S	100	$63.59	$6.36K	1,208,923	Direct
19 Mar, 2026	Alma Gregory Sorensen	Chief Strategy Officer	Disposed G	7,000	$0.00	$0	1,201,923	Direct
16 Mar, 2026	Alma Gregory Sorensen	Chief Strategy Officer	Disposed F	5,919	$61.72	$365.32K	1,238,923	Direct
18 Mar, 2026	Alma Gregory Sorensen	Chief Strategy Officer	Disposed S	14,200	$62.12	$882.10K	1,224,723	Direct
18 Mar, 2026	Alma Gregory Sorensen	Chief Strategy Officer	Disposed S	800	$62.72	$50.18K	1,223,923	Direct
10 Mar, 2026	Alma Gregory Sorensen	Chief Strategy Officer	Acquired M	3,742	$0.00	$0	1,185,620	Direct
10 Mar, 2026	Alma Gregory Sorensen	Chief Strategy Officer	Acquired M	4,987	$0.00	$0	1,190,607	Direct

Showing 1 to 20 of 974 transactions