ARCH COAL INC

CUSIP: 039380100 Class: COM

PRINCIPAL FINANCIAL GROUP INC's Holding History (CIK: 0001126328)

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

Q1 2015
Shares 1,315,306 Value ($000) $1,315 Avg Close — Range —
Q4 2014
Shares 1,285,814 Value ($000) $2,289 Avg Close — Range —
Q3 2014
Shares 1,318,731 Value ($000) $2,796 Avg Close — Range —
Q2 2014
Shares 1,333,856 Value ($000) $4,869 Avg Close — Range —
Q1 2014
Shares 1,337,161 Value ($000) $6,445 Avg Close — Range —
Q4 2013
Shares 1,290,158 Value ($000) $5,741 Avg Close — Range —
Q3 2013
Shares 523,445 Value ($000) $2,152 Avg Close — Range —
Q2 2013
Shares 517,076 Value ($000) $1,955 Avg Close — Range —