RadNet, Inc. — Director's Dealing 2011

May 20, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: RadNet, Inc. (RDNT)
CIK: 0000790526
Period of Report: 2011-05-19

Reporting Person: STOLPER MARK (Executive VP and CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-19	Common Stock	M	100000	$3.10	Acquired	177205	Direct
2011-05-19	Common Stock	F	63265	$4.90	Disposed	113940	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-05-19	Stock Option	$3.10	M	100000	Acquired	2011-07-11	Common Stock (100000)	Direct

Footnotes

F1: Issued in connection with employment.

F2: Shares were not sold in the open market. The shares were exchanged in connection with a cashless exercise of five (5) year warrants expiring 7/11/11. No proceeds were received by th Reporting Person.