MEADWESTVACO CORP

CUSIP: 583334107 Class: COM

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q2 2015
Shares 46,000 Value ($000) $2,171 Avg Close — Range —
Q1 2015
Shares 61,393 Value ($000) $3,062 Avg Close — Range —
Q4 2014
Shares 12,954 Value ($000) $575 Avg Close — Range —
Q2 2014
Shares 19,532 Value ($000) $864 Avg Close — Range —
Q1 2014
Shares 139,808 Value ($000) $5,262 Avg Close — Range —