ATHLON ENERGY INC

CUSIP: 047477104 Class: COM

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q3 2014
Shares 6,795,629 Value ($000) $395,710 Avg Close — Range —
Q2 2014
Shares 9,111,013 Value ($000) $434,595 Avg Close — Range —
Q1 2014
Shares 7,031,669 Value ($000) $249,273 Avg Close — Range —
Q4 2013
Shares 1,722,498 Value ($000) $52,106 Avg Close — Range —
Q3 2013
Shares 1,062,344 Value ($000) $34,739 Avg Close — Range —