PEPCO HOLDINGS INC

CUSIP: 713291102 Class: COM

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

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

Q4 2015
Shares 258,308 Value ($000) $6,719 Avg Close — Range —
Q3 2015
Shares 69,310 Value ($000) $1,679 Avg Close — Range —
Q2 2015
Shares 126,019 Value ($000) $3,395 Avg Close — Range —
Q2 2014
Shares 31,561 Value ($000) $867 Avg Close — Range —