WESTAR ENERGY INC

CUSIP: 95709T100 Class: COMMON STOCK

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

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

Q1 2018
Shares 51,850 Value ($000) $2,727 Avg Close — Range —
Q4 2017
Shares 51,050 Value ($000) $2,695 Avg Close — Range —
Q3 2017
Shares 53,450 Value ($000) $2,651 Avg Close — Range —
Q2 2017
Shares 58,550 Value ($000) $3,104 Avg Close — Range —
Q1 2017
Shares 57,750 Value ($000) $3,134 Avg Close — Range —
Q4 2016
Shares 57,150 Value ($000) $3,220 Avg Close — Range —
Q3 2016
Shares 57,050 Value ($000) $3,238 Avg Close — Range —
Q2 2016
Shares 56,850 Value ($000) $3,189 Avg Close — Range —
Q1 2016
Shares 56,550 Value ($000) $2,805 Avg Close — Range —
Q4 2015
Shares 55,850 Value ($000) $2,369 Avg Close — Range —
Q3 2015
Shares 60,250 Value ($000) $2,316 Avg Close — Range —
Q2 2015
Shares 60,250 Value ($000) $2,062 Avg Close — Range —
Q1 2015
Shares 59,850 Value ($000) $2,320 Avg Close — Range —
Q4 2014
Shares 62,250 Value ($000) $2,567 Avg Close — Range —
Q3 2014
Shares 61,550 Value ($000) $2,100 Avg Close — Range —
Q2 2014
Shares 60,750 Value ($000) $2,320 Avg Close — Range —
Q1 2014
Shares 60,650 Value ($000) $2,132 Avg Close — Range —
Q4 2013
Shares 59,550 Value ($000) $1,916 Avg Close — Range —
Q3 2013
Shares 59,150 Value ($000) $1,813 Avg Close — Range —
Q2 2013
Shares 58,350 Value ($000) $1,865 Avg Close — Range —