undamentalytics Newsletter

Radnet, Inc. insider trading

Every open-market purchase and sale by Radnet, Inc.'s officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

No insider has bought shares on the open market in five years.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
Radnet, Inc. insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following Radnet, Inc.’s insiders pay?

From May 13, 2010 to June 22, 2026, 21 insiders reported 3 open-market purchases and 206 sales not made under a pre-set plan in Radnet, Inc. Twelve months after each purchase was reported, the shares were +3.8% against the S&P 500 on average (median −25.0%), over 3 purchases with a full year of prices; 33% beat the index. After sales, the shares moved +10.4% against the index over 12 months (a negative figure means selling was the right call). That rests on fewer than 20 purchases, too few to read much into. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on March 25, 2020 into $24,416 by November 2, 2026, +14.5% a year. It held shares 34% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $20,639 (+11.6% a year), and held throughout $33,515 (+20.1%).

$0$10.0k$20.0k$30.0k 2020202120222023202420252026 $33.5k$24.4k$20.6k
Copying Radnet, Inc.'s insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Radnet, Inc.'s insiders from March 25, 2020, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 34% of the time.
Radnet, Inc.: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Hames Norman R Pres and COO-West Operations 0 — — 93 +18.7% (87) September 12, 2025
Crues John V Medical Director 0 — — 17 −0.9% (16) March 16, 2021
Murdock Michael N EVP, Mergers and Acquisitions 0 — — 15 +14.8% (15) June 6, 2025
Forthuber Stephen M Pres & CEO-Eastern Operations 0 — — 13 +2.1% (10) June 16, 2026
Stolper Mark EVP, Chief Financial Officer 0 — — 12 −0.7% (11) September 18, 2025
Linden Jeffrey L Executive Vice President 0 — — 10 +15.6% (10) September 17, 2018
Levitt Lawrence L Director 1 −25.0% (1) 0% 6 −6.7% (6) May 20, 2025
Swartz David L Director 1 −28.5% (1) 0% 5 −3.4% (4) June 22, 2026
Gordon Christine Nayoma Director 0 — — 5 +55.8% (5) June 11, 2024
Sherman Michael L Md Director 0 — — 5 −7.5% (5) August 21, 2019
Wesdorp Cornelis Pres & CEO, Digital Health 0 — — 5 −8.0% (4) June 18, 2026
Katz David Jeffrey EVP and Chief Legal Officer 0 — — 4 −17.0% (4) September 17, 2025
Sorensen Alma Gregory Chief Strategy Officer 0 — — 4 −21.8% (2) March 23, 2026
Villigerwilson Ruth Louisa Senior Vice President of HR 0 — — 4 −3.5% (4) March 6, 2023
Jayanathan Ranjan Chief Information Officer 0 — — 2 −12.5% (2) August 21, 2025
Patel Mital EVP of Fin Planning, CAO 0 — — 2 −17.4% (1) November 19, 2025
Cadwell Marvin S Director 0 — — 1 +10.4% (1) March 14, 2018
Kaminsky Sandy Nyholm 10% owner 0 — — 1 +10.4% (1) October 3, 2017
Karen B. Kaplan Survivor's Trust Other 1 +64.8% (1) 100% 0 — March 24, 2020
Skulte Todd W EVP, Hospital Based Operations 0 — — 1 −27.8% (1) June 16, 2015
Spurlock Gregory E. Director 0 — — 1 −15.3% (1) June 18, 2024

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded Radnet, Inc.

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Radnet, Inc. in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After 13 selling crowds, +2.7%. One company's history is too short to judge by; the test across every company is the better guide.

MonthCrowd3 months on, vs S&P 5006 months12 months
June 30, 20263 selling+12.0%not yetnot yet
March 31, 20253 selling+1.1%+33.5%−7.2%
June 28, 202411 selling+12.3%+10.9%−21.0%
May 31, 20233 selling+5.7%+4.1%+74.6%
March 31, 20213 selling+46.5%+25.7%−14.3%
March 29, 20193 selling+7.1%+9.3%−6.5%
September 28, 20183 selling−18.9%−14.8%−10.5%
March 29, 20185 selling+1.8%−8.0%−24.5%
May 31, 20174 selling+38.4%+26.2%+62.0%
September 30, 20163 selling−16.8%−34.2%+39.8%
December 31, 20153 selling−22.9%−16.8%−7.6%
June 30, 20155 selling−10.5%−7.7%−22.7%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Latest 12 of 14. Total returns from the month end; past patterns are not a forecast.

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