WASHINGTON POST CO

CUSIP: 939640108 Class: CL B

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

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

Q3 2013
Shares 894 Value ($000) $547 Avg Close — Range —
Q2 2013
Shares 922 Value ($000) $446 Avg Close — Range —