OSI SYSTEMS INC

Ticker: OSIS CUSIP: 671044105 Class: EQTY

Washington Trust Bank's Holding History (CIK: 0000861787)

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

Q2 2016

Shares 1,500 Value ($000) $87 Avg Close $55.08 Range $48.76 - $66.43

Q1 2016

Shares 1,500 Value ($000) $98 Avg Close $66.19 Range $48.19 - $88.33

Q4 2015

Shares 1,500 Value ($000) $133 Avg Close $87.50 Range $75.60 - $96.75

Q3 2015

Shares 1,500 Value ($000) $115 Avg Close $72.21 Range $66.94 - $79.28

Q2 2015

Shares 1,500 Value ($000) $106 Avg Close $72.33 Range $66.03 - $76.70

Q1 2015

Shares 1,500 Value ($000) $111 Avg Close $71.68 Range $66.90 - $75.00

Q4 2014

Shares 1,500 Value ($000) $106 Avg Close $68.20 Range $58.54 - $74.79

Q3 2014

Shares 1,500 Value ($000) $95 Avg Close $66.39 Range $62.10 - $70.27

Q2 2014

Shares 1,500 Value ($000) $100 Avg Close $59.67 Range $52.68 - $67.44

Q1 2014

Shares 1,500 Value ($000) $90 Avg Close $59.85 Range $51.85 - $66.78

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2016	1,500	$87	$55.08	$48.76 - $66.43
Q1 2016	1,500	$98	$66.19	$48.19 - $88.33
Q4 2015	1,500	$133	$87.50	$75.60 - $96.75
Q3 2015	1,500	$115	$72.21	$66.94 - $79.28
Q2 2015	1,500	$106	$72.33	$66.03 - $76.70
Q1 2015	1,500	$111	$71.68	$66.90 - $75.00
Q4 2014	1,500	$106	$68.20	$58.54 - $74.79
Q3 2014	1,500	$95	$66.39	$62.10 - $70.27
Q2 2014	1,500	$100	$59.67	$52.68 - $67.44
Q1 2014	1,500	$90	$59.85	$51.85 - $66.78