X0202 4 2006-08-15 0 0000728387 IsoRay, Inc. ISR 0001333199 Swanberg David 350 HILLS STREET SUITE 106 RICHLAND WA 99354 1 1 0 0 EVP Operations & Secretary stock options (right to buy) 3.11 2006-08-15 4 A 0 20000 0 A 2016-08-15 common stock 20000 320000 I see footnote 2 6,666 stock options vest 8/15/2006, 6,667 stock options vest 8/15/2007, 6,667 stock options vest 8/15/2008. 20,000 stock options are held indirectly through Mr. Swanberg's spouse. The remaining 300,000 stock options are held directly. /s/David Swanberg 2007-09-13