ALPHA NATURAL RESOURCES INC

CUSIP: 02076X102 Class: COM

PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO's Holding History (CIK: 0000315297)

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

Q1 2015
Shares 67,798 Value ($000) $68 Avg Close — Range —
Q4 2014
Shares 67,798 Value ($000) $113 Avg Close — Range —
Q3 2014
Shares 67,798 Value ($000) $168 Avg Close — Range —
Q2 2014
Shares 67,798 Value ($000) $252 Avg Close — Range —
Q1 2014
Shares 67,798 Value ($000) $288 Avg Close — Range —
Q4 2013
Shares 67,798 Value ($000) $484 Avg Close — Range —
Q3 2013
Shares 67,798 Value ($000) $404 Avg Close — Range —
Q2 2013
Shares 75,110 Value ($000) $394 Avg Close — Range —