AMCOL INTL CORP

CUSIP: 02341W103 Class: COMMON STOCK

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q1 2014
Shares 376,103 Value ($000) $17,218 Avg Close — Range —
Q4 2013
Shares 412,365 Value ($000) $14,011 Avg Close — Range —
Q3 2013
Shares 413,232 Value ($000) $13,505 Avg Close — Range —
Q2 2013
Shares 403,485 Value ($000) $12,787 Avg Close — Range —