MINE SAFETY APPLIANCES CO

CUSIP: 602720104 Class: COMMON STOCK

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

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

Q4 2013
Shares 80,139 Value ($000) $4,104 Avg Close — Range —
Q3 2013
Shares 79,157 Value ($000) $4,085 Avg Close — Range —
Q2 2013
Shares 76,447 Value ($000) $3,558 Avg Close — Range —