X0202 4 2006-02-24 0 0000319240 IRIS INTERNATIONAL INC IRI 0001343621 Yi John U 29365 QUEENS WAY AGOURA HILLS CA 91301 0 1 0 0 Vice President, Operations Restricted Stock Grant 2006-02-24 4 A 0 2268 0.01 A 79899 D Common Stock 2006-08-24 4 A 0 4015 7.4715 A 83914 D Stock Option (Right to Buy) 22.95 2006-02-24 4 A 0 20822 0.00 A 2007-02-24 2011-02-24 Common Stock 20822 20822 D Each Retricted Stock Grant represents a contingent right to receive one share of common stock. The Restricted Stock Grants vest with respect to 25% of the shares on the first anniversary of grant (February 24, 2007), and thereafter in 12 equal quarterly installments. Restricted Stock Grant shares are subject to repurchase by Iris International, Inc. to the extent not vested, at $.01 per share, upon termination of the reporting person's employment. Exercisable in four equal annual installments on each of February 24, 2007, 1008, 2009 and 2010. /s/ Donald C. Mueller as Attorney-in-Fact for John U. Yi 2006-08-25