GREAT PLAINS ENERGY INC

CUSIP: 391164100 Class: COM

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q1 2018
Shares 995,432 Value ($000) $31,645 Avg Close — Range —
Q4 2017
Shares 667,046 Value ($000) $21,506 Avg Close — Range —
Q3 2017
Shares 663,035 Value ($000) $20,090 Avg Close — Range —
Q2 2017
Shares 667,230 Value ($000) $19,536 Avg Close — Range —
Q1 2017
Shares 664,720 Value ($000) $19,422 Avg Close — Range —
Q4 2016
Shares 653,471 Value ($000) $17,874 Avg Close — Range —
Q3 2016
Shares 693,289 Value ($000) $18,922 Avg Close — Range —
Q2 2016
Shares 669,465 Value ($000) $20,349 Avg Close — Range —
Q1 2016
Shares 655,802 Value ($000) $21,150 Avg Close — Range —
Q4 2015
Shares 653,941 Value ($000) $17,862 Avg Close — Range —
Q3 2015
Shares 616,554 Value ($000) $16,657 Avg Close — Range —
Q2 2015
Shares 614,025 Value ($000) $14,837 Avg Close — Range —
Q1 2015
Shares 559,781 Value ($000) $14,933 Avg Close — Range —
Q4 2014
Shares 534,721 Value ($000) $15,194 Avg Close — Range —
Q3 2014
Shares 407,731 Value ($000) $9,856 Avg Close — Range —
Q2 2014
Shares 421,144 Value ($000) $11,316 Avg Close — Range —
Q1 2014
Shares 383,669 Value ($000) $10,372 Avg Close — Range —
Q4 2013
Shares 379,917 Value ($000) $9,209 Avg Close — Range —
Q3 2013
Shares 337,938 Value ($000) $7,502 Avg Close — Range —
Q2 2013
Shares 315,169 Value ($000) $7,104 Avg Close — Range —