Form4insider filings, from the source

Insider holders · CIK 0001993004

NorthWestern Energy Group, Inc. · NWE

Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity

InsiderDirect sharesIndirect sharesTotal reportedLast report (ET)From
Linda G SullivanDirector34,586—34,586Jul 13, 2026 · 11:22 am EDTForm 4
Jeffrey W. YinglingDirector24,349—24,349Aug 5, 2026 · 9:26 am EDTForm 4
Mahvash YazdiDirector22,932—22,932Jul 13, 2026 · 11:54 am EDTForm 4/A
Britt E IdeDirector15,558—15,558Jul 13, 2026 · 11:30 am EDTForm 4
Kent T LarsonDirector12,041—12,041Jul 13, 2026 · 11:24 am EDTForm 4
Jan Robert HorsfallDirector11,670—11,670Aug 6, 2026 · 2:21 pm EDTForm 4
Sherina M. EdwardsDirector9,978—9,978Jul 13, 2026 · 11:27 am EDTForm 4
David L GoodinDirector5,624—5,624Jul 13, 2026 · 11:28 am EDTForm 4

Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.