X0306 4 2020-07-08 0 0001039065 OSI SYSTEMS INC OSIS 0001804609 Grindstaff Glenn 12525 CHADRON AVENUE HAWTHORNE CA 90250 0 1 0 0 Chief Human Resources Officer Common Stock 2020-07-08 4 A 0 1792 0 A 2482 D Shares are restricted stock units issued to the Reporting Person pursuant to the OSI Systems, Inc. Amended and Restated 2012 Incentive Award Plan. Vesting and amount of shared is subject to achievement of performance targets. /s/ Glenn Grindstaff 2020-07-10