ALTA MESA RES INC

CUSIP: 02133L109 Class: COMMON STOCK

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q2 2019
Shares 5,800 Value ($000) $1 Avg Close — Range —
Q1 2019
Shares 5,800 Value ($000) $2 Avg Close — Range —
Q4 2018
Shares 2,886 Value ($000) $3 Avg Close — Range —
Q3 2018
Shares 12,086 Value ($000) $51 Avg Close — Range —
Q2 2018
Shares 10,086 Value ($000) $69 Avg Close — Range —