WASHINGTON POST CO

CUSIP: 939640108 Class: CL B

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

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

Q1 2012
Shares 5,400 Value ($000) $2,017 Avg Close — Range —
Q4 2011
Shares 4,830 Value ($000) $1,820 Avg Close — Range —
Q3 2011
Shares 4,830 Value ($000) $1,579 Avg Close — Range —
Q2 2011
Shares 8,610 Value ($000) $3,607 Avg Close — Range —
Q1 2011
Shares 8,160 Value ($000) $3,570 Avg Close — Range —
Q4 2010
Shares 8,260 Value ($000) $3,630 Avg Close — Range —
Q3 2010
Shares 7,180 Value ($000) $2,868 Avg Close — Range —
Q2 2010
Shares 3,800 Value ($000) $1,560 Avg Close — Range —