GREAT PLAINS ENERGY INC

CUSIP: 391164100 Class: COM

GATEWAY INVESTMENT ADVISERS LLC's Holding History (CIK: 0001114618)

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

Q1 2018
Shares 95,576 Value ($000) $3,038 Avg Close — Range —
Q4 2017
Shares 94,478 Value ($000) $3,046 Avg Close — Range —
Q3 2017
Shares 105,387 Value ($000) $3,193 Avg Close — Range —
Q2 2017
Shares 105,563 Value ($000) $3,091 Avg Close — Range —
Q1 2017
Shares 105,243 Value ($000) $3,075 Avg Close — Range —
Q4 2016
Shares 105,243 Value ($000) $2,878 Avg Close — Range —
Q3 2016
Shares 106,738 Value ($000) $2,913 Avg Close — Range —
Q2 2016
Shares 106,925 Value ($000) $3,251 Avg Close — Range —
Q1 2016
Shares 106,558 Value ($000) $3,436 Avg Close — Range —
Q4 2015
Shares 105,650 Value ($000) $2,885 Avg Close — Range —
Q3 2015
Shares 105,511 Value ($000) $2,851 Avg Close — Range —
Q2 2015
Shares 105,511 Value ($000) $2,549 Avg Close — Range —
Q1 2015
Shares 103,945 Value ($000) $2,773 Avg Close — Range —
Q4 2014
Shares 103,945 Value ($000) $2,953 Avg Close — Range —
Q3 2014
Shares 153,179 Value ($000) $3,702 Avg Close — Range —
Q2 2014
Shares 153,179 Value ($000) $4,116 Avg Close — Range —
Q1 2014
Shares 153,505 Value ($000) $4,151 Avg Close — Range —
Q4 2013
Shares 153,505 Value ($000) $3,721 Avg Close — Range —
Q3 2013
Shares 153,578 Value ($000) $3,409 Avg Close — Range —
Q2 2013
Shares 195,178 Value ($000) $4,399 Avg Close — Range —