WESTAR ENERGY INC

CUSIP: 95709T100 Class: COMMON STOCK

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

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

Q1 2018
Shares 484,619 Value ($000) $25,486 Avg Close — Range —
Q4 2017
Shares 484,442 Value ($000) $25,579 Avg Close — Range —
Q3 2017
Shares 481,547 Value ($000) $23,886 Avg Close — Range —
Q2 2017
Shares 479,709 Value ($000) $25,435 Avg Close — Range —
Q1 2017
Shares 476,635 Value ($000) $25,867 Avg Close — Range —
Q4 2016
Shares 475,454 Value ($000) $26,792 Avg Close — Range —
Q3 2016
Shares 493,441 Value ($000) $28,003 Avg Close — Range —
Q2 2016
Shares 483,390 Value ($000) $27,110 Avg Close — Range —
Q1 2016
Shares 483,540 Value ($000) $23,989 Avg Close — Range —
Q4 2015
Shares 488,070 Value ($000) $20,702 Avg Close — Range —
Q3 2015
Shares 512,485 Value ($000) $19,698 Avg Close — Range —
Q2 2015
Shares 484,524 Value ($000) $16,581 Avg Close — Range —
Q1 2015
Shares 436,073 Value ($000) $16,901 Avg Close — Range —
Q4 2014
Shares 419,723 Value ($000) $17,312 Avg Close — Range —
Q3 2014
Shares 334,677 Value ($000) $11,419 Avg Close — Range —
Q2 2014
Shares 330,174 Value ($000) $12,608 Avg Close — Range —
Q1 2014
Shares 306,974 Value ($000) $10,792 Avg Close — Range —
Q4 2013
Shares 300,668 Value ($000) $9,672 Avg Close — Range —
Q3 2013
Shares 288,479 Value ($000) $8,841 Avg Close — Range —
Q2 2013
Shares 261,156 Value ($000) $8,346 Avg Close — Range —