ICON PLC

Ticker: ICLR CUSIP: G4705A100 Class: SHS

ArrowMark Colorado Holdings LLC's Holding History (CIK: 0001483859)

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

Q2 2015

Shares 102,500 Value ($000) $6,898 Avg Close $67.47 Range $62.36 - $71.80

Q1 2015

Shares 132,500 Value ($000) $9,345 Avg Close $61.98 Range $50.91 - $72.40

Q4 2014

Shares 137,500 Value ($000) $7,011 Avg Close $53.92 Range $49.75 - $59.81

Q3 2014

Shares 182,500 Value ($000) $10,444 Avg Close $51.48 Range $45.50 - $57.98

Q2 2014

Shares 221,500 Value ($000) $10,435 Avg Close $43.18 Range $35.33 - $49.39

Q1 2014

Shares 244,000 Value ($000) $11,602 Avg Close $44.59 Range $38.91 - $50.00

Q4 2013

Shares 308,000 Value ($000) $12,448 Avg Close $39.76 Range $36.42 - $44.23

Q3 2013

Shares 308,000 Value ($000) $12,606 Avg Close $38.50 Range $35.50 - $41.29

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2015	102,500	$6,898	$67.47	$62.36 - $71.80
Q1 2015	132,500	$9,345	$61.98	$50.91 - $72.40
Q4 2014	137,500	$7,011	$53.92	$49.75 - $59.81
Q3 2014	182,500	$10,444	$51.48	$45.50 - $57.98
Q2 2014	221,500	$10,435	$43.18	$35.33 - $49.39
Q1 2014	244,000	$11,602	$44.59	$38.91 - $50.00
Q4 2013	308,000	$12,448	$39.76	$36.42 - $44.23
Q3 2013	308,000	$12,606	$38.50	$35.50 - $41.29