Perspective Therapeutics, Inc. — Director's Dealing 2007

Sep 13, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IsoRay, Inc. (ISR)
CIK: 0000728387
Period of Report: 2006-08-15

Reporting Person: Swanberg David (Director, EVP Operations & Secretary)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2006-08-15	stock options (right to buy)	$3.11	A	20000	Acquired	2016-08-15	common stock (20000)	Indirect

Footnotes

F1: 6,666 stock options vest 8/15/2006, 6,667 stock options vest 8/15/2007, 6,667 stock options vest 8/15/2008.

F2: 20,000 stock options are held indirectly through Mr. Swanberg's spouse. The remaining 300,000 stock options are held directly.