NWN · Northwest Natural Holding Co · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Superinvestors Holding NWN
All superinvestors →Holder Concentration
Across 323 13F filersWho Holds NWN
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 321 filers, like-for-like change +3.5%; actively managed books +2.6%; index-like books +4.5%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 46.5% | 164 | +2.6% |
| Exempt adviser | 0.6% | 3 | +89.0% |
| Adviser | 4.0% | 7 | +11.0% |
| Bank | 9.8% | 21 | +3.7% |
| Insurer | 1.3% | 2 | -6.4% |
| Broker-dealer | 0.1% | 2 | -2.1% |
| Benefit plan | 0.3% | 5 | +2.3% |
| Non-US | 1.7% | 11 | +7.6% |
| Holding company | 24.6% | 10 | +4.8% |
| Unknown | 11.2% | 96 | -0.1% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 45.8% | 39 | +4.5% |
| Systematic-like | 3.3% | 15 | -1.3% |
| Concentrated | 0.7% | 56 | +21.7% |
| Diversified active | 50.2% | 211 | +2.6% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 62.0% | 200 | +4.4% |
| Medium turnover | 18.8% | 68 | +5.6% |
| High turnover | 3.7% | 27 | -15.2% |
| Unknown | 15.5% | 26 | +2.7% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 16.1% | 34 | +3.6% |
| Medium horizon | 23.1% | 46 | +3.4% |
| Long horizon | 53.6% | 229 | +2.3% |
| Unknown | 7.3% | 12 | +13.4% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 0.8% | 63 | -2.5% |
| $1B to $10B | 4.9% | 90 | +9.9% |
| $10B to $100B | 22.1% | 98 | +0.6% |
| $100B or more | 72.2% | 70 | +4.1% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 2.3% | 92 | +7.2% |
| Pooled investment vehicles | 2.5% | 14 | -11.5% |
| Registered funds and BDCs | 30.3% | 26 | +2.4% |
| Pension and profit sharing plans | 0.1% | 2 | -2.6% |
| Insurance companies | 1.4% | 4 | -0.1% |
| Charitable organizations | 0.0% | 1 | 0.0% |
| Governments and sovereign funds | 0.7% | 5 | +15.4% |
| Corporations | 0.0% | 1 | 0.0% |
| Other investment advisers | 0.1% | 5 | -4.0% |
| Other | 0.1% | 1 | -0.3% |
| Diversified | 9.0% | 12 | +6.7% |
| Unknown | 53.5% | 158 | +4.2% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 8.8% | 29 | +1.6% |
| Private equity funds | 2.2% | 9 | -13.3% |
| Venture capital funds | 0.0% | 1 | 0.0% |
| Real estate funds | 0.0% | 4 | +215.9% |
| Securitized asset funds | 0.5% | 1 | +12.5% |
| Other private funds | 10.6% | 20 | +3.8% |
| Mixed private funds | 0.3% | 2 | +20.2% |
| Private funds, type not stated | 0.1% | 1 | -54.8% |
| No private funds | 24.7% | 99 | +5.2% |
| Unknown | 52.9% | 155 | +3.7% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 92.6% | 270 | +1.8% |
| Outside the US | 7.4% | 51 | +31.5% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 3 holders with no observed 2026-03-31 13F and 5 holders with no observed 2026-06-30 13F. Compared across CIK changes: JANUS HENDERSON GROUP PLC continues as Jupiter Topco LLC.
Conviction and Crowding
321 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 25.3% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies NWN's active holders also own, quarter ended Jun 30, 2026Shareholder Targets
13F filers that own its peers but not NWN, quarter ended Jun 30, 2026Found through its holder-overlap peers: SR, OGS, ABCB, CMS, XEL, YUMC, LNT, DVN, AEE, DTE, PEG, PPG, KEY, ED, ATI, WEC, FE, NI, IRM, WSO. 3,314 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | Capital World Investors Adviser, Diversified active | $6,989,106,006 7 held | FE, DTE, ATI |
| 2 | Capital Research Global Investors Adviser, Diversified active | $6,923,663,663 5 held | XEL, DTE, ATI |
| 3 | WELLINGTON MANAGEMENT GROUP LLP Holding company, Diversified active | $5,538,225,262 15 held | DVN, PPG, CMS |
| 4 | BANK OF NOVA SCOTIA Bank, Diversified active | $3,952,122,912 16 held | KEY, ATI, DTE |
| 5 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ Registered adviser, Diversified active | $3,504,472,328 13 held | XEL, CMS, LNT |
| 6 | T. Rowe Price Investment Management, Inc. Adviser, Diversified active | $3,028,082,736 7 held | NI, AEE, OGS |
| 7 | COHEN & STEERS, INC. Adviser, Diversified active | $2,634,214,145 10 held | IRM, NI, LNT |
| 8 | Capital International Investors Adviser, Diversified active | $2,591,286,433 3 held | WSO, ATI, CMS |
| 9 | GQG Partners LLC Registered adviser, Diversified active | $1,657,631,714 3 held | XEL, DVN, CMS |
| 10 | Boston Partners Registered adviser, Diversified active | $1,522,041,479 6 held | FE, DTE, XEL |
Fund Ownership of NWN by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 34.44% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 4.92% | 2,069,283 |
| Index ETFs | 29.52% | 12,427,019 |
| Active ETFs | 1.03% | 433,324 |
| Active funds | 11.42% | 4,809,156 |
| Unclassified | 0.69% | 289,319 |
| All registered funds | 47.58% | 20,028,101 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega BlackRock, Inc. Holding company | $329,209,175 | 19.57% | 6,710,338 | Shares | 2026-08-07 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $134,166,393 | 7.97% | 2,734,741 | Shares | 2026-08-13 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $93,205,610 | 5.54% | 1,899,829 | Shares | 2026-08-13 | |
| Mega STATE STREET CORP Bank | $84,916,187 | 5.05% | 1,730,864 | Shares | 2026-09-22 | |
| Large VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. Registered adviser | $71,620,338 | 4.26% | 1,459,852 | Shares | 2026-07-16 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $60,208,639 | 3.58% | 1,227,245 | Shares | 2026-08-12 | |
| Mega Invesco Ltd. Adviser | $45,645,765 | 2.71% | 930,407 | Shares | 2026-08-14 | |
| Mega MORGAN STANLEY Holding company | $39,950,878 | 2.37% | 814,327 | Shares | 2026-08-13 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $37,394,413 | 2.22% | 762,218 | Shares | 2026-08-11 | |
| Mega FIRST TRUST ADVISORS LP Registered adviser | $36,603,813 | 2.18% | 746,103 | Shares | 2026-08-11 | |
| Large DUFF & PHELPS INVESTMENT MANAGEMENT CO Registered adviser | $30,078,195 | 1.79% | 613,090 | Shares | 2026-08-13 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $28,439,443 | 1.69% | 579,687 | Shares | 2026-08-14 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $27,924,804 | 1.66% | 569,197 | Shares | 2026-08-14 | |
| Large GABELLI FUNDS LLC Registered adviser | $25,511,200 | 1.52% | 520,000 | Shares | 2026-08-12 | |
| Mega Bank of New York Mellon Corp Bank | $24,160,329 | 1.44% | 492,465 | Shares | 2026-08-06 | |
| Mega NORTHERN TRUST CORP Bank | $24,110,437 | 1.43% | 491,448 | Shares | 2026-08-13 | |
| Large WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC Registered adviser | $23,009,532 | 1.37% | 469,008 | Shares | 2026-08-12 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $19,628,317 | 1.17% | 400,088 | Shares | 2026-08-14 | |
| Large MetLife Investment Management, LLC Registered adviser | $18,365,463 | 1.09% | 374,347 | Shares | 2026-08-14 | |
| Large GAMCO INVESTORS, INC. ET AL Registered adviser | $17,843,122 | 1.06% | 363,700 | Shares | 2026-08-12 | |
| Mega Allianz Asset Management GmbH | $16,286,791 | 0.97% | 331,977 | Shares | 2026-09-02 | |
| Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $15,787,360 | 0.94% | 321,797 | Shares | 2026-08-14 | |
| Mega Nuveen, LLC | $14,495,806 | 0.86% | 295,471 | Shares | 2026-08-11 | |
| Mega VICTORY CAPITAL MANAGEMENT INC Registered adviser | $14,415,250 | 0.86% | 293,829 | Shares | 2026-08-07 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $13,740,037 | 0.82% | 280,066 | Shares | 2026-08-13 | |
| Large HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC Registered adviser | $13,548,164 | 0.81% | 276,155 | Shares | 2026-08-14 | |
| Large NATIXIS ADVISORS, LLC Registered adviser | $12,879,476 | 0.77% | 262,525 | Shares | 2026-08-14 | |
| Large GLENMEDE TRUST CO NA | $12,640,700 | 0.75% | 257,658 | Shares | 2026-08-10 | |
| Mega Legal & General Group Plc | $12,104,376 | 0.72% | 246,726 | Shares | 2026-08-14 | |
| Mega AQR CAPITAL MANAGEMENT LLC Registered adviser | $12,046,877 | 0.72% | 245,554 | Shares | 2026-08-14 | |
| Mega PRINCIPAL FINANCIAL GROUP INC Insurer | $11,950,525 | 0.71% | 243,590 | Shares | 2026-08-04 | |
| Mid Edgestream Partners, L.P. | $11,501,577 | 0.68% | 234,439 | Shares | 2026-08-11 | |
| Mega AMERICAN CENTURY COMPANIES INC | $10,597,499 | 0.63% | 216,011 | Shares | 2026-08-12 | |
| Large JUPITER ASSET MANAGEMENT LTD Registered adviser | $10,545,447 | 0.63% | 214,950 | Shares | 2026-08-10 | |
| Mid THOMPSON SIEGEL & WALMSLEY LLC Registered adviser | $10,123,825 | 0.60% | 206,356 | Shares | 2026-08-11 | |
| Large PRUDENTIAL FINANCIAL INC Insurer | $10,102,533 | 0.60% | 205,922 | Shares | 2026-08-12 | |
| Large Baird Financial Group, Inc. | $9,556,642 | 0.57% | 194,795 | Shares | 2026-08-12 | |
| Mega SG Americas Securities, LLC Non-US | $8,880,448 | 0.53% | 181,012 | Shares | 2026-08-07 | |
| Mega FRANKLIN RESOURCES INC Adviser | $8,800,234 | 0.52% | 179,377 | Shares | 2026-08-13 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $8,069,093 | 0.48% | 164,474 | Shares | 2026-08-14 | |
| Mid Dana Investment Advisors, Inc. Registered adviser | $8,044,221 | 0.48% | 163,967 | Shares | 2026-08-13 | |
| Mega Amundi Holding company | $7,972,641 | 0.47% | 162,508 | Shares | 2026-08-11 | |
| Mega Qube Research & Technologies Ltd Exempt adviser | $7,971,563 | 0.47% | 162,486 | Shares | 2026-08-14 | |
| Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Registered adviser | $7,844,885 | 0.47% | 159,904 | Shares | 2026-08-13 | |
| Mega AMERIPRISE FINANCIAL INC Adviser | $7,659,147 | 0.46% | 156,118 | Shares | 2026-08-14 | |
| Large ProShare Advisors LLC Registered adviser | $7,196,807 | 0.43% | 146,694 | Shares | 2026-08-11 | |
| Large Public Sector Pension Investment Board Non-US | $7,093,928 | 0.42% | 144,597 | Shares | 2026-08-13 | |
| Mid CSM Advisors, LLC | $6,449,672 | 0.38% | 131,465 | Shares | 2026-08-14 | |
| Large EXCHANGE TRADED CONCEPTS, LLC Registered adviser | $6,021,329 | 0.36% | 122,734 | Shares | 2026-08-11 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $5,499,282 | 0.33% | 112,093 | Shares | 2026-08-12 | |
| Mega JPMORGAN CHASE & CO Bank | $4,934,746 | 0.29% | 100,586 | Shares | 2026-08-12 | |
| Mega VOYA INVESTMENT MANAGEMENT LLC Registered adviser | $4,533,928 | 0.27% | 92,416 | Shares | 2026-08-12 | |
| Large TCW GROUP INC Holding company | $4,401,663 | 0.26% | 89,720 | Shares | 2026-08-03 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $4,346,125 | 0.26% | 88,588 | Shares | 2026-08-14 | |
| Small GRACE & WHITE INC /NY Registered adviser | $4,203,286 | 0.25% | 90,064 | Shares | 2026-10-23 | |
| Mega Swiss National Bank | $4,003,296 | 0.24% | 81,600 | Shares | 2026-08-11 | |
| Mega UBS Group AG Bank | $3,716,048 | 0.22% | 75,745 | Shares | 2026-08-13 | |
| Mega CITIGROUP INC Bank | $3,713,890 | 0.22% | 75,701 | Shares | 2026-08-03 | |
| Mid WEDGE CAPITAL MANAGEMENT L L P/NC | $3,658,507 | 0.22% | 78,391 | Shares | 2026-10-13 | |
| Mega DEUTSCHE BANK AG\ Non-US | $3,647,266 | 0.22% | 74,343 | Shares | 2026-08-07 | |
| Mid XTX Topco Ltd | $3,471,681 | 0.21% | 70,764 | Shares | 2026-08-14 | |
| Large CANADA LIFE ASSURANCE Co | $3,452,401 | 0.21% | 70,371 | Shares | 2026-08-13 | |
| Large BESSEMER GROUP INC | $3,334,165 | 0.20% | 67,961 | Shares | 2026-08-12 | |
| Large COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | $3,307,036 | 0.20% | 67,408 | Shares | 2026-07-17 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $3,303,504 | 0.20% | 67,336 | Shares | 2026-08-14 | |
| Large LSV ASSET MANAGEMENT Registered adviser | $3,296,832 | 0.20% | 67,200 | Shares | 2026-08-06 | |
| Mega NORDEA INVESTMENT MANAGEMENT AB Non-US | $3,295,507 | 0.20% | 67,173 | Shares | 2026-08-05 | |
| Mega Cetera Investment Advisers Registered adviser | $3,280,102 | 0.19% | 66,859 | Shares | 2026-08-12 | |
| Mid MARTINGALE ASSET MANAGEMENT L P Registered adviser | $3,171,581 | 0.19% | 64,647 | Shares | 2026-08-13 | |
| Large Point72 Asset Management, L.P. Registered adviser | $2,976,273 | 0.18% | 60,666 | Shares | 2026-08-14 | |
| Large Cambridge Investment Research Advisors, Inc. | $2,870,893 | 0.17% | 58,518 | Shares | 2026-07-30 | |
| Large NEW YORK STATE TEACHERS RETIREMENT SYSTEM | $2,840,616 | 0.17% | 60,866 | Shares | 2026-10-22 | |
| Large PANAGORA ASSET MANAGEMENT INC Registered adviser | $2,732,642 | 0.16% | 55,700 | Shares | 2026-08-06 | |
| Large Quantinno Capital Management LP Registered adviser | $2,584,873 | 0.15% | 52,688 | Shares | 2026-08-13 | |
| Mega ALLIANCEBERNSTEIN L.P. Registered adviser | $2,376,809 | 0.14% | 48,447 | Shares | 2026-08-14 | |
| Mid HENNESSY ADVISORS INC Registered adviser | $2,340,309 | 0.14% | 47,703 | Shares | 2026-07-16 | |
| Mega CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Benefit plan | $2,270,055 | 0.13% | 46,271 | Shares | 2026-08-24 | |
| Mid Maryland State Retirement & Pension System | $2,265,492 | 0.13% | 46,178 | Shares | 2026-07-30 | |
| Mid Magellan Asset Management Ltd Registered adviser | $2,264,953 | 0.13% | 46,167 | Shares | 2026-08-13 | |
| Mid North Star Investment Management Corp. Adviser | $2,240,160 | 0.13% | 48,000 | Shares | 2026-10-27 | |
| Mid Penn Capital Management Company, LLC Registered adviser | $2,128,566 | 0.13% | 43,387 | Shares | 2026-07-30 | |
| Large Janney Montgomery Scott LLC Adviser | $2,068,909 | 0.12% | 42,171 | Shares | 2026-08-05 | |
| Large MACQUARIE GROUP LTD | $1,861,091 | 0.11% | 37,935 | Shares | 2026-08-14 | |
| Large State of New Jersey Common Pension Fund D | $1,773,322 | 0.11% | 36,146 | Shares | 2026-08-04 | |
| Mega NORGES BANK Non-US | $1,766,160 | 0.10% | 36,000 | Shares | 2026-08-12 | |
| Small Panoramic Capital Partners, LLC | $1,702,283 | 0.10% | 34,698 | Shares | 2026-08-07 | |
| Mid Ilex Capital Partners (UK) LLP Exempt adviser | $1,646,649 | 0.10% | 33,564 | Shares | 2026-08-14 | |
| Mid SEGALL BRYANT & HAMILL, LLC Registered adviser | $1,629,920 | 0.10% | 33,223 | Shares | 2026-08-12 | |
| Large Vanguard Investments Australia, Ltd. | $1,589,494 | 0.09% | 32,399 | Shares | 2026-08-13 | |
| Mega VANGUARD ASSET MANAGEMENT, Ltd | $1,554,269 | 0.09% | 31,681 | Shares | 2026-08-13 | |
| Mega FMR LLC Holding company | $1,542,053 | 0.09% | 31,432 | Shares | 2026-08-13 | |
| Large FIFTH THIRD BANCORP Bank | $1,513,844 | 0.09% | 30,857 | Shares | 2026-08-05 | |
| Large IEQ CAPITAL, LLC Registered adviser | $1,474,596 | 0.09% | 30,057 | Shares | 2026-08-11 | |
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC Registered adviser | $1,471,800 | 0.09% | 30,000 | Shares | 2026-08-14 | |
| Large Trexquant Investment LP Registered adviser | $1,439,714 | 0.09% | 29,346 | Shares | 2026-08-14 | |
| Mega JENNISON ASSOCIATES LLC Registered adviser | $1,432,355 | 0.09% | 29,196 | Shares | 2026-08-03 | |
| Mega SEI INVESTMENTS CO Holding company | $1,410,867 | 0.08% | 28,758 | Shares | 2026-08-14 | |
| Mega LPL Financial LLC Broker-dealer | $1,384,718 | 0.08% | 28,225 | Shares | 2026-08-07 | |
| Mega BNP PARIBAS ARBITRAGE, SA Non-US | $1,383,442 | 0.08% | 28,199 | Shares | 2026-08-13 | |
| Mega RAYMOND JAMES FINANCIAL INC | $1,376,770 | 0.08% | 28,063 | Shares | 2026-08-14 |
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