Security key
668074305
NorthWestern Energy Group, Inc. - Common Stock (NWE)
CUSIP: 668074305
Q4 2025 13F Holders as of 31 Dec 2025
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 59,783,493
- Total 13F value
- $3,858,307,956
- Share change
- +1,181,772
- SEC-reported price per share
- $64.54
- Number of holders
- 357
- Value change
- +$81,389,576
- Number of buys
- 183
- Number of sells
- 143
- Shares outstanding
- 61,540,789
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2025
Institutions
357
Top holders
10
NWE full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
NorthWestern Energy Group, Inc. SEC filings
NorthWestern Energy Group, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 668074305
Recent filing periods:
Ownership snapshot
Top reported holders of NWE - NorthWestern Energy Group, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
30 Sep 2025
13F
13D/G
Lead comparable stake: 13%
13D/G row: BlackRock, Inc.
Showing 1-6 of 15 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 13%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
13%
AMERICAN CENTURY INVESTMENT MANAG...
4.8%
VANGUARD GROUP INC
11%
AMERICAN CENTURY COMPANIES INC
4.8%
STATE STREET CORP
4.3%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
13%
from 13D/G
|
$493,920,773
8,427,244 shares
|
— | 30 Sep 2025 |
| AMERICAN CENTURY INVESTMENT MANAGEMENT INC |
13D/G
|
4.8%
|
$151,448,578
2,952,214 shares
|
-$33,749,295 | 30 Jun 2025 |
| VANGUARD GROUP INC |
13F
Company
|
11%
|
$392,432,867
6,695,664 shares
|
— | 30 Sep 2025 |
| AMERICAN CENTURY COMPANIES INC |
13F
Company
|
4.8%
|
$174,002,435
2,968,816 shares
|
— | 30 Sep 2025 |
| STATE STREET CORP |
13F
Company
|
4.3%
|
$153,732,096
2,622,967 shares
|
— | 30 Sep 2025 |
| River Road Asset Management, LLC |
13F
Company
|
3.7%
|
$134,304,229
2,291,490 shares
|
— | 30 Sep 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
357
Shares
59,783,493
Rows available
357
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
324
Q4 2025 holders
357
Holder diff
33
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend