PROGRESSIVE WASTE SOLUTIONS

CUSIP: 74339G101 Class: COM

Northwest & Ethical Investments L.P.'s Holding History (CIK: 0002033536)

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

Q1 2012
Shares 92,300 Value ($000) $2,002 Avg Close — Range —
Q4 2011
Shares 197,700 Value ($000) $3,874 Avg Close — Range —
Q3 2011
Shares 217,200 Value ($000) $4,470 Avg Close — Range —
Q2 2011
Shares 217,200 Value ($000) $5,408 Avg Close — Range —