WASHINGTON POST CO

CUSIP: 939640108 Class: CL B

Robeco Institutional Asset Management B.V.'s Holding History (CIK: 0001418773)

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

Q3 2013
Shares 7,922 Value ($000) $4,843 Avg Close — Range —
Q2 2013
Shares 7,922 Value ($000) $3,832 Avg Close — Range —