Mge Energy, Inc.
A holding company whose main arm, Madison Gas and Electric, supplies electricity and natural gas to homes and businesses across south-central Wisconsin. It was born from an 1896 merger of Madison's early gas-light provider, founded in 1855, with the city's upstart electric-power company. The heritage powerhouse building that once generated the city's electricity is listed on the National Register of Historic Places.
Estimated from filings — the split-adjusted price range over the quarters each manager built the position. A range, not a fill price; 13F reports a quarter-end snapshot, not a trade date.