ALTA MESA RES INC

CUSIP: 02133L109 Class: COMMON STOCK

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

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

Q3 2018

Shares 215,366 Value ($000) $900 Avg Close — Range —

Q2 2018

Shares 215,366 Value ($000) $1,467 Avg Close — Range —

Q1 2018

Shares 215,366 Value ($000) $1,723 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	215,366	$900	—	—
Q2 2018	215,366	$1,467	—	—
Q1 2018	215,366	$1,723	—	—