Who owns NorthWestern Energy Group, Inc. (NWE)? Elite investor 13F holders

7 tracked elite investors reported holding NorthWestern Energy Group, Inc as of 2026-06-30, including GMO, GAMCO, D.E. Shaw, Ancora Advisors / Ancora Holdings, Mairs & Power Funds. Who bought, trimmed or exited each quarter, with links to the original SEC 13F filings.

7 tracked investors currently reported holding · Latest report period: 2026-06-30 · Utilities · Utilities

NorthWestern Energy Group, Inc., doing business as NorthWestern Energy, provides electricity and natural gas to residential, commercial, and diversified industrial customers. It generates, purchases, transmits, and distributes electricity; and produces, purchases, stores, transmits, and distributes natural gas, as well as owns municipal franchises to provide natural gas service in the…

Reported holders and securities, including exits (up to 20)

Reported holders and securities, including exits (up to 20)
InvestorSecurityInstrumentReport periodFiledValueQuantityUnitsChangeSource
GMONORTHWESTERN ENERGY GROUP INSHARE2026-06-302026-08-13 00:00:0044627281.00 USD623112.000000SharesaddOriginal filing
GAMCONORTHWESTERN ENERGY GROUP INSHARE2026-06-302026-08-12 00:00:0019147607.00 USD267350.000000SharesreduceOriginal filing
D.E. ShawNORTHWESTERN ENERGY GROUP INSHARE2026-06-302026-08-14 00:00:0010437111.00 USD145729.000000SharesreduceOriginal filing
Ancora Advisors / Ancora HoldingsNORTHWESTERN ENERGY GROUP INSHARE2026-06-302026-08-14 00:00:007003362.00 USD97785.000000SharesreduceOriginal filing
Mairs & Power FundsNORTHWESTERN ENERGY GROUP INSHARE2026-06-302026-08-14 00:00:003666299.00 USD51191.000000SharesreduceOriginal filing
Tudor InvestmentNORTHWESTERN ENERGY GROUP INSHARE2026-06-302026-08-14 00:00:000.00 USD0.000000SharesexitedOriginal filing
Bridgewater AssociatesNORTHWESTERN ENERGY GROUP INSHARE2026-06-302026-08-14 00:00:003574912.00 USD49915.000000SharesaddOriginal filing
Renaissance Technologies LLCNORTHWESTERN ENERGY GROUP INSHARE2026-06-302026-08-13 00:00:001097648.00 USD15326.000000SharesbuyOriginal filing

Public disclosures can be delayed, incomplete, or amended. Report period describes a position date; transaction date describes a reported transaction; filed describes submission. A recent filing or page update does not establish a current holding. A dash means unavailable or not comparable, not zero.

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