OSI SYSTEMS INC

Ticker: OSIS CUSIP: 671044105 Class: EQTY

PEREGRINE CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000764529)

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

Q4 2017

Shares 274,725 Value ($000) $17,687 Avg Close $84.03 Range $53.80 - $96.64

Q3 2017

Shares 272,997 Value ($000) $24,944 Avg Close $81.30 Range $74.96 - $92.34

Q2 2017

Shares 310,250 Value ($000) $23,315 Avg Close $75.70 Range $69.08 - $82.26

Q1 2017

Shares 311,268 Value ($000) $22,673 Avg Close $74.27 Range $69.45 - $81.55

Q4 2016

Shares 289,790 Value ($000) $22,059 Avg Close $72.10 Range $65.00 - $78.86

Q3 2016

Shares 316,287 Value ($000) $20,679 Avg Close $63.03 Range $55.76 - $69.49

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	274,725	$17,687	$84.03	$53.80 - $96.64
Q3 2017	272,997	$24,944	$81.30	$74.96 - $92.34
Q2 2017	310,250	$23,315	$75.70	$69.08 - $82.26
Q1 2017	311,268	$22,673	$74.27	$69.45 - $81.55
Q4 2016	289,790	$22,059	$72.10	$65.00 - $78.86
Q3 2016	316,287	$20,679	$63.03	$55.76 - $69.49