POTASH CORP SASK INC

CUSIP: 73755L107 Class: COMMON STOCK-FO

GATEWAY INVESTMENT ADVISERS LLC's Holding History (CIK: 0001114618)

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

Q4 2015
Shares 83,746 Value ($000) $1,434 Avg Close — Range —
Q3 2015
Shares 134,716 Value ($000) $2,768 Avg Close — Range —
Q2 2015
Shares 134,948 Value ($000) $4,179 Avg Close — Range —
Q1 2015
Shares 135,117 Value ($000) $4,358 Avg Close — Range —
Q4 2014
Shares 135,117 Value ($000) $4,772 Avg Close — Range —
Q3 2014
Shares 86,141 Value ($000) $2,977 Avg Close — Range —
Q2 2014
Shares 86,141 Value ($000) $3,270 Avg Close — Range —
Q1 2014
Shares 86,561 Value ($000) $3,135 Avg Close — Range —
Q4 2013
Shares 110,115 Value ($000) $3,629 Avg Close — Range —
Q3 2013
Shares 110,115 Value ($000) $3,444 Avg Close — Range —
Q2 2013
Shares 110,165 Value ($000) $4,201 Avg Close — Range —