IDEXX LABS INC

Ticker: IDXX CUSIP: 45168D104 Class: COM

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

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

Q1 2014

Shares 133,913 Value ($000) $16,257 Avg Close $59.57 Range $52.32 - $64.64

Q4 2013

Shares 209,751 Value ($000) $22,311 Avg Close $52.63 Range $49.56 - $56.55

Q3 2013

Shares 240,000 Value ($000) $23,916 Avg Close $48.06 Range $43.99 - $50.19

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2014	133,913	$16,257	$59.57	$52.32 - $64.64
Q4 2013	209,751	$22,311	$52.63	$49.56 - $56.55
Q3 2013	240,000	$23,916	$48.06	$43.99 - $50.19