POTASH CORP SASK INC

CUSIP: 73755L107 Class: COMMON STOCK-FO

BOKF, NA's Holding History (CIK: 0000009634)

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

Q4 2017
Shares 94,239 Value ($000) $1,946 Avg Close — Range —
Q3 2017
Shares 93,514 Value ($000) $1,799 Avg Close — Range —
Q2 2017
Shares 92,544 Value ($000) $1,508 Avg Close — Range —
Q1 2017
Shares 88,454 Value ($000) $1,511 Avg Close — Range —
Q4 2016
Shares 85,922 Value ($000) $1,554 Avg Close — Range —
Q3 2016
Shares 83,320 Value ($000) $1,360 Avg Close — Range —
Q2 2016
Shares 78,856 Value ($000) $1,280 Avg Close — Range —
Q1 2016
Shares 80,385 Value ($000) $1,369 Avg Close — Range —
Q4 2015
Shares 71,347 Value ($000) $1,221 Avg Close — Range —
Q3 2015
Shares 69,421 Value ($000) $1,427 Avg Close — Range —
Q2 2015
Shares 64,904 Value ($000) $2,010 Avg Close — Range —
Q1 2015
Shares 62,202 Value ($000) $2,006 Avg Close — Range —
Q4 2014
Shares 58,900 Value ($000) $2,080 Avg Close — Range —
Q3 2014
Shares 63,143 Value ($000) $2,182 Avg Close — Range —
Q2 2014
Shares 167,787 Value ($000) $6,370 Avg Close — Range —
Q1 2014
Shares 157,415 Value ($000) $5,701 Avg Close — Range —
Q4 2013
Shares 38,489 Value ($000) $1,269 Avg Close — Range —
Q3 2013
Shares 34,579 Value ($000) $1,082 Avg Close — Range —
Q2 2013
Shares 18,743 Value ($000) $715 Avg Close — Range —