MINE SAFETY APPLIANCES CO

CUSIP: 602720104 Class: COMMON STOCK

CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM's Holding History (CIK: 0000919079)

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

Q4 2013
Shares 72,588 Value ($000) $3,721 Avg Close — Range —
Q3 2013
Shares 64,259 Value ($000) $3,316 Avg Close — Range —
Q2 2013
Shares 57,859 Value ($000) $2,693 Avg Close — Range —