ALPHA NATURAL RESOURCES INC

CUSIP: 02076X102 Class: COM

Aperio Group, LLC's Holding History (CIK: 0001364615)

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

Q1 2015
Shares 23,542 Value ($000) $24 Avg Close — Range —
Q4 2014
Shares 91,975 Value ($000) $154 Avg Close — Range —
Q3 2014
Shares 81,804 Value ($000) $203 Avg Close — Range —
Q2 2014
Shares 67,067 Value ($000) $249 Avg Close — Range —
Q1 2014
Shares 22,354 Value ($000) $95 Avg Close — Range —
Q4 2013
Shares 54,361 Value ($000) $388 Avg Close — Range —
Q3 2013
Shares 23,688 Value ($000) $141 Avg Close — Range —
Q2 2013
Shares 21,251 Value ($000) $111 Avg Close — Range —