MINE SAFETY APPLIANCES CO

CUSIP: 602720104 Class: COMMON STOCK

Aperio Group, LLC's Holding History (CIK: 0001364615)

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

Q4 2013
Shares 4,734 Value ($000) $242 Avg Close — Range —
Q3 2013
Shares 4,896 Value ($000) $253 Avg Close — Range —
Q2 2013
Shares 4,775 Value ($000) $222 Avg Close — Range —