ALTA MESA RES INC

CUSIP: 02133L109 Class: COMMON STOCK

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2018
Shares 2,058,295 Value ($000) $2,058 Avg Close — Range —
Q3 2018
Shares 1,833,038 Value ($000) $7,662 Avg Close — Range —
Q2 2018
Shares 1,833,038 Value ($000) $12,483 Avg Close — Range —
Q1 2018
Shares 2,028,120 Value ($000) $16,225 Avg Close — Range —
Q4 2017
Shares 498,220 Value ($000) $4,937 Avg Close — Range —