AMCOL INTL CORP

CUSIP: 02341W103 Class: COMMON STOCK

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

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

Q1 2014
Shares 10,436 Value ($000) $478 Avg Close — Range —
Q4 2013
Shares 7,934 Value ($000) $270 Avg Close — Range —