NWN Institutional Ownership & Shareholders
NORTHWEST NATURAL HOLDING CO (NWN) is currently held by 309 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $1.65B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of NWN tracked by InsiderSet, reporting ownership valued at approximately $329.21M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $340.42M, representing an estimated gain of +3.40% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 56% of the total disclosed NWN value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in NORTHWEST NATURAL HOLDING CO (NWN).
This page ranks the largest institutional NWN shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
309
Total Reported Value
$1.65B
Largest Holder
Blackrock, Inc.
Largest Position
$329.21M
Insider Transactions (90d)
9
Latest Filing Quarter
Q2 2026
New Institutional Positions
41
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 6,710,338 | $329,209,200 | $340,415,447 | +$11,206,247 | +3.40% | |
| Vanguard Portfolio Management Llc | 0.01% | 2,734,741 | $134,166,393 | $138,733,411 | +$4,567,018 | +3.40% | |
| Vanguard Capital Management Llc | 0.00% | 1,899,829 | $93,205,611 | $96,378,325 | +$3,172,714 | +3.40% | |
| State Street Corp | 0.00% | 1,730,864 | $84,916,188 | $87,806,731 | +$2,890,543 | +3.40% | |
| Vaughan Nelson Investment Management, L.P. | 0.63% | 1,459,852 | $71,620,339 | $74,058,292 | +$2,437,953 | +3.40% | |
| Geode Capital Management, Llc | 0.00% | 1,227,245 | $60,219,618 | $62,258,139 | +$2,038,521 | +3.39% | |
| Invesco Ltd. | 0.00% | 930,407 | $45,645,767 | $47,199,547 | +$1,553,780 | +3.40% | |
| Morgan Stanley | 0.00% | 814,327 | $39,950,941 | $41,310,809 | +$1,359,868 | +3.40% | |
| Dimensional Fund Advisors Lp | 0.01% | 762,218 | $37,396,465 | $38,667,319 | +$1,270,854 | +3.40% | |
| First Trust Advisors Lp | 0.02% | 746,103 | $36,603,793 | $37,849,805 | +$1,246,012 | +3.40% | |
| Duff & Phelps Investment Management Co | 0.28% | 613,090 | $30,078,195 | $31,102,056 | +$1,023,861 | +3.40% | |
| Goldman Sachs Group Inc | 0.00% | 579,687 | $28,439,425 | $29,407,522 | +$968,097 | +3.40% | |
| Charles Schwab Investment Management Inc | 0.00% | 569,197 | $27,924,805 | $28,875,364 | +$950,559 | +3.40% | |
| Gabelli Funds Llc | 0.16% | 520,000 | $25,511,200 | $26,379,600 | +$868,400 | +3.40% | |
| Bank Of New York Mellon Corp | 0.00% | 492,465 | $24,160,326 | $24,982,749 | +$822,423 | +3.40% | |
| Northern Trust Corp | 0.00% | 491,448 | $24,110,439 | $24,931,157 | +$820,718 | +3.40% | |
| William Blair Investment Management, Llc | 0.07% | 469,008 | $23,009,532 | $23,792,776 | +$783,244 | +3.40% | |
| Two Sigma Investments, Lp | 0.01% | 400,088 | $19,628,317 | $20,296,464 | +$668,147 | +3.40% | |
| Metlife Investment Management, Llc | 0.08% | 374,347 | $18,365,464 | $18,990,623 | +$625,159 | +3.40% | |
| Gamco Investors, Inc. Et Al | 0.16% | 363,700 | $17,843,122 | $18,450,501 | +$607,379 | +3.40% | |
| Allianz Asset Management Gmbh | 0.02% | 331,977 | $16,286,791 | $16,841,193 | +$554,402 | +3.40% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.02% | 321,797 | $15,787,361 | $16,324,762 | +$537,401 | +3.40% | |
| Nuveen, Llc | 0.00% | 295,471 | $14,495,807 | $14,989,244 | +$493,437 | +3.40% | |
| Victory Capital Management Inc | 0.01% | 293,829 | $14,415,251 | $14,905,945 | +$490,694 | +3.40% | |
| Vanguard Fiduciary Trust Co | 0.00% | 280,066 | $13,740,038 | $14,207,748 | +$467,710 | +3.40% | |
| Hotchkis & Wiley Capital Management Llc | 0.04% | 276,155 | $13,548,164 | $14,009,343 | +$461,179 | +3.40% | |
| Natixis Advisors, Llc | 0.01% | 262,525 | $12,879,000 | $13,317,893 | +$438,893 | +3.41% | |
| Glenmede Trust Co Na | 0.06% | 257,658 | $12,640,700 | $13,070,990 | +$430,290 | +3.40% | |
| Legal & General Group Plc | 0.00% | 246,726 | $12,104,376 | $12,516,410 | +$412,034 | +3.40% | |
| Aqr Capital Management Llc | 0.00% | 245,554 | $12,046,864 | $12,456,954 | +$410,090 | +3.40% | |
| Principal Financial Group Inc | 0.01% | 243,590 | $11,950,524 | $12,357,321 | +$406,797 | +3.40% | |
| Edgestream Partners, L.P. | 0.34% | 234,439 | $11,501,577 | $11,893,090 | +$391,513 | +3.40% | |
| American Century Companies Inc | 0.00% | 216,011 | $10,597,500 | $10,958,238 | +$360,738 | +3.40% | |
| Jupiter Asset Management Ltd | 0.05% | 214,950 | $10,545,447 | $10,904,414 | +$358,967 | +3.40% | |
| Thompson Siegel & Walmsley Llc | 0.18% | 206,356 | $10,124,000 | $10,468,440 | +$344,440 | +3.40% | |
| Prudential Financial Inc | 0.01% | 205,922 | $10,102,533 | $10,446,423 | +$343,890 | +3.40% | |
| Baird Financial Group, Inc. | 0.01% | 194,795 | $9,556,643 | $9,881,950 | +$325,307 | +3.40% | |
| Proshare Advisors Llc | 0.01% | 201,546 | $9,406,151 | $10,224,429 | +$818,278 | +8.70% | |
| Sg Americas Securities, Llc | 0.01% | 181,012 | $8,880,000 | $9,182,739 | +$302,739 | +3.41% | |
| Bank Of America Corp | 0.00% | 164,474 | $8,069,092 | $8,343,766 | +$274,674 | +3.40% | |
| Dana Investment Advisors, Inc. | 0.21% | 163,967 | $8,044,221 | $8,318,046 | +$273,825 | +3.40% | |
| Qube Research & Technologies Ltd | 0.01% | 162,486 | $7,971,563 | $8,242,915 | +$271,352 | +3.40% | |
| Ameriprise Financial Inc | 0.00% | 156,118 | $7,659,127 | $7,919,866 | +$260,739 | +3.40% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 142,193 | $7,567,513 | $7,213,451 | -$354,062 | -4.68% | |
| Public Sector Pension Investment Board | 0.02% | 144,597 | $7,093,929 | $7,335,406 | +$241,477 | +3.40% | |
| Csm Advisors, Llc | 0.14% | 131,465 | $6,450,000 | $6,669,219 | +$219,219 | +3.40% | |
| Exchange Traded Concepts, Llc | 0.03% | 126,090 | $5,884,620 | $6,396,546 | +$511,926 | +8.70% | |
| Rhumbline Advisers | 0.00% | 112,093 | $5,499,263 | $5,686,478 | +$187,215 | +3.40% | |
| Jpmorgan Chase & Co | 0.00% | 100,586 | $5,125,150 | $5,102,728 | -$22,422 | -0.44% | |
| Voya Investment Management Llc | 0.00% | 92,416 | $4,533,929 | $4,688,264 | +$154,335 | +3.40% |
Frequently asked questions about NWN
Who are the largest institutional holders of NWN?
The largest institutional holders of NWN reported in the latest SEC Form 13F filings include Blackrock, Inc., Vanguard Portfolio Management Llc, Vanguard Capital Management Llc, State Street Corp, and Vaughan Nelson Investment Management, L.P.. InsiderSet ranks institutional holders by their latest reported NWN position.
What is NWN institutional ownership?
This page tracks NWN positions reported by institutional investment managers through SEC Form 13F. NORTHWEST NATURAL HOLDING CO (NWN) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own NWN?
InsiderSet currently tracks 309 institutional managers reporting NWN holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of NWN shareholders.
How much NWN stock do institutions own?
Institutional investment managers disclosed approximately $1.65B in NWN holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was NWN institutional ownership last updated?
The latest NWN institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional NWN holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its NWN position after the reporting date.
Are institutions buying or selling NWN?
Institutional buying and selling can be analyzed by comparing NWN positions across consecutive 13F reporting periods. InsiderSet's NWN Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View NWN ownership changes.
How has NWN institutional ownership changed over time?
InsiderSet tracks NWN institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.