AMCOL INTL CORP

CUSIP: 02341W103 Class: COMMON STOCK

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q1 2014
Shares 50,617 Value ($000) $2,317 Avg Close — Range —
Q4 2013
Shares 50,417 Value ($000) $1,713 Avg Close — Range —
Q3 2013
Shares 50,117 Value ($000) $1,638 Avg Close — Range —
Q2 2013
Shares 48,517 Value ($000) $1,538 Avg Close — Range —
Q1 2013
Shares 43,887 Value ($000) $1,325 Avg Close — Range —