RadNet, Inc. (RDNT) Insider Ownership

Historic Ownership Trends

Through the 90-day period concluding December 12, 2025, RadNet's top three insider stakeholders include Pres & COO Eastern Operations Stephen M Forthuber (529.22K shares), President And CEO Howard G Berger (348.41K shares), Pres And COO West Operations Norman R Hames (259.07K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Alma Gregory Sorensen EVP And Chief Science Officer 1,165,345 18 Jun, 2025
Stephen M Forthuber Pres & COO Eastern Operations 529,221 09 Dec, 2025
John V Crues Medical Director 435,262 16 Mar, 2021
Howard G Berger President And CEO 348,412 21 Nov, 2025
Norman R Hames Pres And COO West Operations 259,072 12 Sep, 2025
David L Swartz 181,285 11 Jun, 2025
Mital Patel EVP Of Fin Planning And Cao 179,508 05 Dec, 2025
Lawrence L Levitt 164,956 28 Nov, 2025
Ranjan Jayanathan Chief Information Officer 138,198 21 Aug, 2025
Mark Stolper EVP And Chief Financial Officer 103,715 12 Dec, 2025
David Jeffrey Katz EVP And Chief Legal Officer 71,577 12 Dec, 2025
Cornelis Wesdorp Pres & CEO And Digital Health 53,495 12 Sep, 2025
Michael N Murdock EVP And Mergers And Acquisitions 40,084 17 Nov, 2025
Laura Pastre Jacobs 27,007 11 Jun, 2025
Christine Nayoma Gordon 10,879 11 Jun, 2024
Ruth Louisa Villigerwilson 9,884 06 Mar, 2023
Gregory E. Spurlock 5,290 11 Jun, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
10 Dec, 2025 Mark Stolper Common Stock A 35,703 $6.07 103,715 D M
10 Dec, 2025 David Jeffrey Katz Common Stock A 3,396 $29.44 71,577 D M
05 Dec, 2025 Stephen M Forthuber Common Stock D 31,790 $77.99 542,519 D S
05 Dec, 2025 Stephen M Forthuber Common Stock D 11,598 $79.06 530,921 D S
05 Dec, 2025 Stephen M Forthuber Common Stock D 1,700 $79.77 529,221 D S
03 Dec, 2025 Stephen M Forthuber Common Stock A 39,127 $6.07 574,309 D M
03 Dec, 2025 Mital Patel Common Stock D 630 $0.00 179,508 D G
25 Nov, 2025 Lawrence L Levitt Common Stock D 2,700 $0.00 164,956 D G
19 Nov, 2025 Howard G Berger Common Stock A 103,969 $18.64 322,420 D M
19 Nov, 2025 Howard G Berger Common Stock A 25,992 $18.64 348,412 D M
17 Nov, 2025 Mital Patel Common Stock D 25,000 $76.06 205,138 D S
18 Nov, 2025 Mital Patel Common Stock D 9,920 $80.00 195,218 D S
19 Nov, 2025 Mital Patel Common Stock D 15,080 $80.05 180,138 D S
13 Nov, 2025 Michael N Murdock Common Stock D 3,000 $0.00 40,084 D G
16 Sep, 2025 David Jeffrey Katz Common Stock D 14,000 $74.44 68,181 D S
16 Sep, 2025 Mark Stolper Common Stock D 35,000 $73.89 68,012 D S
11 Sep, 2025 David Jeffrey Katz Common Stock D 4,593 $0.00 82,181 D G
11 Sep, 2025 Cornelis Wesdorp Common Stock D 500 $72.13 53,495 D S
10 Sep, 2025 Norman R Hames Common Stock D 10,000 $72.74 239,183 D S
10 Sep, 2025 Norman R Hames - - 239,183 D