AMCOL INTL CORP

CUSIP: 02341W103 Class: COMMON STOCK

CHARLES SCHWAB INVESTMENT MANAGEMENT INC's Holding History (CIK: 0000884546)

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

Q1 2014
Shares 94,241 Value ($000) $4,315 Avg Close — Range —
Q4 2013
Shares 108,219 Value ($000) $3,678 Avg Close — Range —
Q3 2013
Shares 130,244 Value ($000) $4,248 Avg Close — Range —
Q2 2013
Shares 123,607 Value ($000) $4,014 Avg Close — Range —