Who owns Northwestern Energy Group (NWE)
Which tracked institutional funds hold NWE, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See NWE company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
91 tracked funds added or opened NWE while 69 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
NWE’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes NWE more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in NWE divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 343 tracked filers holding NWE, 160 increased or opened the position and 182 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in NWE between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 10
- Schonfeld Strategic Advisors LLC$36M
- BW Gestao de Investimentos Ltda.$6M
- Jupiter Topco LLC$5M
- Trexquant Investment LP$4M
- RENAISSANCE TECHNOLOGIES LLC$1M
- DARK FOREST CAPITAL MANAGEMENT LP$958K
Full exits 30
- GW&K Investment Management, LLC$38M
- WESTWOOD HOLDINGS GROUP INC$23M
- JANE STREET GROUP, LLC$14M
- Thrivent Financial for Lutherans$8M
- First PREMIER Bank$7M
- ExodusPoint Capital Management, LP$6M
Largest adds
- BlackRock, Inc.$175M
- BALYASNY ASSET MANAGEMENT L.P.$32M
- CITIGROUP INC$25M
- VANGUARD PORTFOLIO MANAGEMENT LLC$24M
- Hudson Bay Capital Management LP$23M
- STATE STREET CORP$20M
Largest trims
- AQR CAPITAL MANAGEMENT LLC$26M
- VICTORY CAPITAL MANAGEMENT INC$26M
- Qube Research & Technologies Ltd$26M
- CAXTON ASSOCIATES LLP$21M
- DEUTSCHE BANK AG\$15M
- AMERICAN CENTURY COMPANIES INC$14M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 9,070,752 | $650M | 16.4% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 3,548,697 | $254M | 6.4% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 2,790,136 | $200M | 5.0% | 2026-Q2 |
| STATE STREET CORP added | 2,431,546 | $174M | 4.4% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,788,900 | $128M | 3.2% | 2026-Q2 |
| FRANKLIN RESOURCES INC trimmed | 1,581,525 | $113M | 2.9% | 2026-Q2 |
| NEUBERGER BERMAN GROUP LLC added | 1,357,486 | $97M | 2.5% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. added | 1,285,897 | $92M | 2.3% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC trimmed | 1,238,268 | $89M | 2.2% | 2026-Q2 |
| SYSTEMATIC FINANCIAL MANAGEMENT LP trimmed | 1,121,956 | $80M | 2.0% | 2026-Q2 |
| AQR Arbitrage LLC added | 1,094,832 | $78M | 2.0% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 1,064,119 | $76M | 1.9% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 1,061,407 | $70M | 1.8% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 1,051,382 | $75M | 1.9% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 1,035,633 | $74M | 1.9% | 2026-Q2 |
| CITIGROUP INC added | 1,023,760 | $73M | 1.9% | 2026-Q2 |
| Hudson Bay Capital Management LP added | 903,026 | $65M | 1.6% | 2026-Q2 |
| FMR LLC added | 861,126 | $62M | 1.6% | 2026-Q2 |
| NORTHERN TRUST CORP added | 824,542 | $59M | 1.5% | 2026-Q2 |
| MORGAN STANLEY added | 821,726 | $59M | 1.5% | 2026-Q2 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. trimmed | 806,508 | $58M | 1.5% | 2026-Q2 |
| River Road Asset Management, LLC trimmed | 796,943 | $57M | 1.4% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 786,289 | $56M | 1.4% | 2026-Q2 |
| NORGES BANK added | 780,561 | $56M | 1.4% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 758,501 | $54M | 1.4% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 743,940 | $53M | 1.3% | 2026-Q2 |
| UBS Group AG trimmed | 739,681 | $53M | 1.3% | 2026-Q2 |
| Grantham, Mayo, Van Otterloo & Co. LLC added | 623,112 | $45M | 1.1% | 2026-Q2 |
| FIRST TRUST ADVISORS LP trimmed | 562,654 | $40M | 1.0% | 2026-Q2 |
| GABELLI FUNDS LLC trimmed | 539,200 | $39M | 1.0% | 2026-Q2 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ trimmed | 513,743 | $37M | 0.9% | 2026-Q2 |
| Nuveen, LLC added | 506,874 | $36M | 0.9% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC added | 498,960 | $36M | 0.9% | 2026-Q2 |
| ProShare Advisors LLC added | 490,527 | $35M | 0.9% | 2026-Q2 |
| FULLER & THALER ASSET MANAGEMENT, INC. trimmed | 467,128 | $33M | 0.8% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 416,053 | $30M | 0.8% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 410,667 | $29M | 0.7% | 2026-Q2 |
| Qube Research & Technologies Ltd trimmed | 367,334 | $26M | 0.7% | 2026-Q2 |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC added | 358,197 | $26M | 0.7% | 2026-Q2 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC trimmed | 336,472 | $24M | 0.6% | 2026-Q2 |
| Invesco Ltd. added | 323,844 | $23M | 0.6% | 2026-Q2 |
| Fort Baker Capital Management LP added | 318,094 | $23M | 0.6% | 2026-Q2 |
| CAXTON ASSOCIATES LLP trimmed | 312,172 | $22M | 0.6% | 2026-Q2 |
| MetLife Investment Management, LLC added | 309,145 | $22M | 0.6% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 305,076 | $22M | 0.6% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 286,606 | $21M | 0.5% | 2026-Q2 |
| Verition Fund Management LLC added | 280,664 | $20M | 0.5% | 2026-Q2 |
| Squarepoint Ops LLC added | 277,545 | $20M | 0.5% | 2026-Q2 |
| GAMCO INVESTORS, INC. ET AL trimmed | 267,350 | $19M | 0.5% | 2026-Q2 |
| Legal & General Group Plc trimmed | 248,405 | $18M | 0.4% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 237,671 | $17M | 0.4% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 232,486 | $17M | 0.4% | 2026-Q2 |
| Man Group plc trimmed | 211,085 | $15M | 0.4% | 2026-Q2 |
| Magnetar Financial LLC added | 206,856 | $15M | 0.4% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 204,481 | $15M | 0.4% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD trimmed | 190,509 | $14M | 0.3% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 183,299 | $13M | 0.3% | 2026-Q2 |
| D. E. Shaw & Co., Inc. trimmed | 145,729 | $10M | 0.3% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 138,393 | $10M | 0.3% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 130,410 | $9M | 0.2% | 2026-Q2 |
| New York Life Investment Management LLC trimmed | 128,309 | $9M | 0.2% | 2026-Q2 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. trimmed | 126,975 | $9M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 123,383 | $9M | 0.2% | 2026-Q2 |
| Polar Asset Management Partners Inc. added | 122,834 | $9M | 0.2% | 2026-Q2 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS trimmed | 116,415 | $8M | 0.2% | 2026-Q2 |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC trimmed | 113,419 | $8M | 0.2% | 2026-Q2 |
| Yaupon Capital Management LP added | 110,131 | $8M | 0.2% | 2026-Q2 |
| LMR Partners LLP added | 103,552 | $7M | 0.2% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 99,835 | $7M | 0.2% | 2026-Q2 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC added | 98,142 | $7M | 0.2% | 2026-Q2 |
| Ancora Advisors LLC trimmed | 97,785 | $7M | 0.2% | 2026-Q2 |
| Kintayl Capital LP trimmed | 89,342 | $6M | 0.2% | 2026-Q2 |
| Weiss Asset Management LP added | 87,518 | $6M | 0.2% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 84,449 | $6M | 0.2% | 2026-Q2 |
| BW Gestao de Investimentos Ltda. new | 83,862 | $6M | 0.2% | 2026-Q2 |
| Cerity Partners LLC trimmed | 80,264 | $6M | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ trimmed | 78,467 | $6M | 0.1% | 2026-Q2 |
| CONNING INC. | 77,076 | $6M | 0.1% | 2026-Q2 |
| FIRST MANHATTAN CO. LLC. trimmed | 76,982 | $6M | 0.1% | 2026-Q2 |
| Jupiter Topco LLC new | 76,104 | $5M | 0.1% | 2026-Q2 |
| COMMONWEALTH EQUITY SERVICES, LLC added | 71,705 | $5M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 70,339 | $5M | 0.1% | 2026-Q2 |
| Public Sector Pension Investment Board | 70,176 | $5M | 0.1% | 2026-Q2 |
| Magellan Asset Management Ltd added | 67,305 | $5M | 0.1% | 2026-Q2 |
| WEDGE CAPITAL MANAGEMENT L L P/NC trimmed | 66,778 | $5M | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 65,518 | $5M | 0.1% | 2026-Q2 |
| Retirement Systems of Alabama trimmed | 63,617 | $5M | 0.1% | 2026-Q2 |
| FIFTH THIRD BANCORP trimmed | 59,485 | $4M | 0.1% | 2026-Q2 |
| Maryland State Retirement & Pension System added | 58,045 | $4M | 0.1% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC added | 57,806 | $4M | 0.1% | 2026-Q2 |
| Oliver Luxxe Assets LLC trimmed | 53,748 | $4M | 0.1% | 2026-Q2 |
| HEARTLAND ADVISORS INC | 53,687 | $4M | 0.1% | 2026-Q2 |
| INTECH INVESTMENT MANAGEMENT LLC added | 51,861 | $4M | 0.1% | 2026-Q2 |
| MAIRS & POWER INC trimmed | 51,191 | $4M | 0.1% | 2026-Q2 |
| Trexquant Investment LP added | 51,015 | $4M | 0.1% | 2026-Q2 |
| North Star Investment Management Corp. trimmed | 50,695 | $4M | 0.1% | 2026-Q2 |
| Bridgewater Associates, LP added | 49,915 | $4M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 49,809 | $4M | 0.1% | 2026-Q2 |
| Quantinno Capital Management LP added | 48,441 | $3M | 0.1% | 2026-Q2 |
| Vanguard Investments Australia, Ltd. added | 47,667 | $3M | 0.1% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.