AMCOL INTL CORP

CUSIP: 02341W103 Class: COMMON STOCK

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q1 2014
Shares 779,319 Value ($000) $35,677 Avg Close — Range —
Q4 2013
Shares 773,909 Value ($000) $26,297 Avg Close — Range —
Q3 2013
Shares 732,385 Value ($000) $23,934 Avg Close — Range —
Q2 2013
Shares 717,600 Value ($000) $22,741 Avg Close — Range —