POTASH CORP SASK INC

CUSIP: 73755L107 Class: COMMON STOCK-FO

ESSEX INVESTMENT MANAGEMENT CO LLC's Holding History (CIK: 0000201772)

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

Q4 2017
Shares 37,643 Value ($000) $777 Avg Close — Range —
Q3 2017
Shares 42,551 Value ($000) $819 Avg Close — Range —
Q2 2017
Shares 44,270 Value ($000) $722 Avg Close — Range —
Q1 2017
Shares 45,344 Value ($000) $774 Avg Close — Range —
Q4 2016
Shares 46,239 Value ($000) $836 Avg Close — Range —
Q3 2016
Shares 49,950 Value ($000) $815 Avg Close — Range —
Q2 2016
Shares 244,624 Value ($000) $3,973 Avg Close — Range —