GREAT PLAINS ENERGY INC

CUSIP: 391164100 Class: COM

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

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

Q2 2017
Shares 76,983 Value ($000) $2,233 Avg Close — Range —
Q4 2016
Shares 2,731,528 Value ($000) $74,707 Avg Close — Range —
Q3 2016
Shares 2,505,991 Value ($000) $68,388 Avg Close — Range —
Q2 2016
Shares 40,974 Value ($000) $1,246 Avg Close — Range —