PORTLAND, OR
NORTHWEST NATURAL HOLDING CONWN— Latest position per institution from SEC 13F filings
15
Institutional holders
36.48M
Total shares held
1.58B
Estimated value
1.82M
Avg. position size
BLACKROCK, INC.
CIK 2012383
Shares
6.71M
Value
329.21M
Filed
Jun 30, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
6.50M
Value
234.84M
Filed
Jun 30, 2024
VANGUARD GROUP INC
CIK 102909
Shares
4.71M
Value
219.96M
Filed
Dec 31, 2025
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
2.73M
Value
134.17M
Filed
Jun 30, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
CIK 1081019
Shares
2.27M
Value
46.27K
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
1.90M
Value
93.21M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
1.73M
Value
84.92M
Filed
Jun 30, 2026
VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.
CIK 1021642
Shares
1.46M
Value
71.62M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
1.23M
Value
60.22M
Filed
Jun 30, 2026
INVESCO LTD.
CIK 914208
Shares
930.41K
Value
45.65M
Filed
Jun 30, 2026
MORGAN STANLEY
CIK 895421
Shares
814.33K
Value
39.95M
Filed
Jun 30, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
762.22K
Value
37.40M
Filed
Jun 30, 2026
FIRST TRUST ADVISORS LP
CIK 1125816
Shares
746.10K
Value
36.60M
Filed
Jun 30, 2026
DEPRINCE RACE & ZOLLO INC
CIK 1008894
Shares
639.15K
Value
24.89M
Filed
Dec 31, 2023
DUFF & PHELPS INVESTMENT MANAGEMENT CO
CIK 765443
Shares
613.09K
Value
30.08M
Filed
Jun 30, 2026
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
579.69K
Value
28.44M
Filed
Jun 30, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 884546
Shares
569.20K
Value
27.92M
Filed
Jun 30, 2026
SIXTH STREET PARTNERS MANAGEMENT COMPANY, L.P.
CIK 1812095
Shares
569.20K
Value
27.92M
Filed
Jun 30, 2026
GABELLI FUNDS LLC
CIK 1081407
Shares
520K
Value
25.51M
Filed
Jun 30, 2026
BANK OF NEW YORK MELLON CORP
CIK 1390777
Shares
492.46K
Value
24.16M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK, INC. | 2012383 | 6.71M | 329.21M | Jun 30, 2026 |
| 2 | BLACKROCK FINANCE, INC. | 1364742 | 6.50M | 234.84M | Jun 30, 2024 |
| 3 | VANGUARD GROUP INC | 102909 | 4.71M | 219.96M | Dec 31, 2025 |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 2.73M | 134.17M | Jun 30, 2026 |
| 5 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 1081019 | 2.27M | 46.27K | Jun 30, 2026 |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 1.90M | 93.21M | Jun 30, 2026 |
| 7 | STATE STREET CORP | 93751 | 1.73M | 84.92M | Jun 30, 2026 |
| 8 | VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | 1021642 | 1.46M | 71.62M | Jun 30, 2026 |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 1.23M | 60.22M | Jun 30, 2026 |
| 10 | INVESCO LTD. | 914208 | 930.41K | 45.65M | Jun 30, 2026 |
| 11 | MORGAN STANLEY | 895421 | 814.33K | 39.95M | Jun 30, 2026 |
| 12 | DIMENSIONAL FUND ADVISORS LP | 354204 | 762.22K | 37.40M | Jun 30, 2026 |
| 13 | FIRST TRUST ADVISORS LP | 1125816 | 746.10K | 36.60M | Jun 30, 2026 |
| 14 | DEPRINCE RACE & ZOLLO INC | 1008894 | 639.15K | 24.89M | Dec 31, 2023 |
| 15 | DUFF & PHELPS INVESTMENT MANAGEMENT CO | 765443 | 613.09K | 30.08M | Jun 30, 2026 |
| 16 | GOLDMAN SACHS GROUP INC | 886982 | 579.69K | 28.44M | Jun 30, 2026 |
| 17 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 884546 | 569.20K | 27.92M | Jun 30, 2026 |
| 18 | SIXTH STREET PARTNERS MANAGEMENT COMPANY, L.P. | 1812095 | 569.20K | 27.92M | Jun 30, 2026 |
| 19 | GABELLI FUNDS LLC | 1081407 | 520K | 25.51M | Jun 30, 2026 |
| 20 | BANK OF NEW YORK MELLON CORP | 1390777 | 492.46K | 24.16M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.