MGE ENERGY INC

Ticker: MGEE CUSIP: 55277P104 Class: EQTY

Robeco Institutional Asset Management B.V.'s Holding History (CIK: 0001418773)

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

Q4 2016

Shares 3,602 Value ($000) $235 Avg Close $49.32 Range $44.04 - $55.33

Q3 2016

Shares 3,602 Value ($000) $204 Avg Close $46.22 Range $44.29 - $48.99

Q2 2016

Shares 3,602 Value ($000) $204 Avg Close $42.25 Range $39.00 - $46.30

Q1 2016

Shares 3,602 Value ($000) $188 Avg Close $39.96 Range $36.30 - $43.30

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2016	3,602	$235	$49.32	$44.04 - $55.33
Q3 2016	3,602	$204	$46.22	$44.29 - $48.99
Q2 2016	3,602	$204	$42.25	$39.00 - $46.30
Q1 2016	3,602	$188	$39.96	$36.30 - $43.30