OSI SYSTEMS INC

Ticker: OSIS CUSIP: 671044105 Class: EQTY

WHITEBOX ADVISORS LLC's Holding History (CIK: 0001257391)

Note: Option positions (PUT/CALL) are excluded.

Q4 2013
Shares 183,571 Value ($000) $9,749 Avg Close $68.42 Range $39.00 - $78.50