CLOUD PEAK ENERGY INC

CUSIP: 18911Q102 Class: COM

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

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

Q4 2015
Shares 1,821,654 Value ($000) $3,789 Avg Close — Range —
Q3 2015
Shares 1,724,450 Value ($000) $4,535 Avg Close — Range —
Q2 2015
Shares 1,788,445 Value ($000) $8,334 Avg Close — Range —
Q1 2015
Shares 1,622,735 Value ($000) $9,444 Avg Close — Range —
Q4 2014
Shares 997,102 Value ($000) $9,153 Avg Close — Range —