MGE ENERGY INC

Ticker: MGEE CUSIP: 55277P104 Class: EQTY

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

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

Q4 2013
Shares 3,900 Value ($000) $226 Avg Close $28.24 Range $26.59 - $29.81
Q3 2013
Shares 3,900 Value ($000) $213 Avg Close $28.25 Range $25.38 - $30.52
Q2 2013
Shares 6,093 Value ($000) $334 Avg Close $27.48 Range $26.21 - $28.93