OSI SYSTEMS INC — Director's Dealing 2010

Nov 3, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OSI SYSTEMS INC (OSIS)
CIK: 0001039065
Period of Report: 2010-11-01

Reporting Person: LUSKIN MEYER/ (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-11-01	Common Stock	M	20000	$18.53	Acquired	27593	Indirect
2010-11-01	Common Stock	M	5000	$17.90	Acquired	32593	Indirect
2010-11-01	Common Stock	M	20000	$18.16	Acquired	52593	Indirect
2010-11-01	Common Stock	M	10000	$20.02	Acquired	62593	Indirect
2010-11-01	Common Stock	M	3507	$26.81	Acquired	66100	Indirect
2010-11-01	Common Stock	M	3477	$3290	Acquired	69577	Indirect
2010-11-01	Common Stock	M	10000	$22.36	Acquired	79577	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-11-01	Option to Purchase Common Stock	$18.53	M	20000	Disposed	2010-11-10	Common Stock (20000)	Direct
2010-11-01	Option to Purchase Common Stock	$17.90	M	5000	Disposed	2011-06-23	Common Stock (5000)	Direct
2010-11-01	Option to Purchase Common Stock	$18.16	M	20000	Disposed	2011-07-06	Common Stock (20000)	Direct
2010-11-01	Option to Purchase Common Stock	$20.02	M	10000	Disposed	2017-09-16	Common Stock (10000)	Direct
2010-11-01	Option to Purchase Common Stock	$26.81	M	3507	Disposed	2011-11-21	Common Stock (3507)	Direct
2010-11-01	Option to Purchase Common Stock	$32.90	M	3477	Disposed	2010-12-15	Common Stock (3477)	Direct
2010-11-01	Option to Purchase Common Stock	$22.36	M	10000	Disposed	2018-08-03	Common Stock (10000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	13563	Direct

Footnotes

F1: Consists of shares of common stock held by Meyer and Doreen Luskin Family Trust. The reporting person is a director of the issuer. The reporting person disclaims beneficial ownership of their securities and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.