WESTAR ENERGY INC

CUSIP: 95709T100 Class: COMMON STOCK

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q1 2018
Shares 128,280 Value ($000) $6,746 Avg Close — Range —
Q4 2017
Shares 133,240 Value ($000) $7,036 Avg Close — Range —
Q3 2017
Shares 126,106 Value ($000) $6,255 Avg Close — Range —
Q2 2017
Shares 178,560 Value ($000) $9,468 Avg Close — Range —
Q1 2017
Shares 220,512 Value ($000) $11,967 Avg Close — Range —
Q4 2016
Shares 195,179 Value ($000) $10,999 Avg Close — Range —
Q3 2016
Shares 256,822 Value ($000) $14,574 Avg Close — Range —
Q2 2016
Shares 720,614 Value ($000) $40,420 Avg Close — Range —
Q1 2016
Shares 1,338,545 Value ($000) $66,405 Avg Close — Range —
Q4 2015
Shares 921,027 Value ($000) $39,060 Avg Close — Range —
Q3 2015
Shares 1,009,324 Value ($000) $38,799 Avg Close — Range —
Q2 2015
Shares 1,228,194 Value ($000) $42,029 Avg Close — Range —
Q1 2015
Shares 1,347,473 Value ($000) $52,228 Avg Close — Range —
Q4 2014
Shares 1,372,550 Value ($000) $56,604 Avg Close — Range —
Q3 2014
Shares 1,435,695 Value ($000) $48,986 Avg Close — Range —
Q2 2014
Shares 1,479,450 Value ($000) $56,500 Avg Close — Range —
Q1 2014
Shares 1,553,390 Value ($000) $54,616 Avg Close — Range —
Q4 2013
Shares 1,796,430 Value ($000) $57,791 Avg Close — Range —
Q3 2013
Shares 1,734,596 Value ($000) $53,165 Avg Close — Range —
Q2 2013
Shares 1,674,993 Value ($000) $53,533 Avg Close — Range —