AMCOL INTL CORP

CUSIP: 02341W103 Class: COMMON STOCK

PDT Partners, LLC's Holding History (CIK: 0001564702)

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

Q4 2013
Shares 8,066 Value ($000) $274 Avg Close — Range —
Q3 2013
Shares 10,787 Value ($000) $353 Avg Close — Range —
Q2 2013
Shares 9,287 Value ($000) $294 Avg Close — Range —