NorthWestern Energy Group, Inc. (NWE)
Nasdaq: NWE · Electric & Other Services Combined · Sioux Falls, SD · filing with the SEC since 2023
Who owns NorthWestern Energy Group, Inc.
As filed with the SECHolders of 5% or more
3
Blackrock, Inc. holds 13% of Common Stock, as its SCHEDULE 13G/A filed Apr 3, 2025 says.
Directors and officers
18
report now, of 21 people on the record since 2024. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 3 named at left.
Holders of 5% or moreshare of the class, as filed
Blackrock, Inc.
SCHEDULE 13G/A · filed Apr 3, 2025 · Common Stock · 18.1% in Feb 5, 2025
Vanguard Portfolio Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Vanguard Capital Management
SCHEDULE 13G · filed Apr 30, 2026 · Common Stock
American Century Investment Management, Inc.
SCHEDULE 13G/A · filed Aug 14, 2025 · Common Stock · reported falling below 5%, from 5.9% in Feb 14, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 27, 2026 · Common Stock · reported falling below 5%
What NWE reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Energy West
An entity · legal entity · owns, named in the 10-K filed Feb 12, 2026
15 subsidiaries in 3 countries, from the list filed with the 10-K filed Feb 12, 2026.
Insider tradesForm 4
0sales
0purchases
0sales on a scheduled plan
0people selling
$0sold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Oct 5, 2025 to Oct 5, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2025 runs to Oct 5, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window
No one on the roster filed an open-market trade in the window.