PORTLAND, OR
NORTHWEST NATURAL HOLDING CONWN— Latest position per institution from SEC 13F filings
15
Institutional holders
33.60M
Total shares held
1.64B
Estimated value
1.68M
Avg. position size
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
6.50M
Value
234.84M
Filed
Jun 30, 2024
BLACKROCK, INC.
CIK 2012383
Shares
6.38M
Value
339.71M
Filed
Mar 31, 2026
VANGUARD GROUP INC
CIK 102909
Shares
4.71M
Value
219.96M
Filed
Dec 31, 2025
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
2.63M
Value
139.86M
Filed
Mar 31, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
1.83M
Value
97.53M
Filed
Mar 31, 2026
STATE STREET CORP
CIK 93751
Shares
1.61M
Value
85.43M
Filed
Mar 31, 2026
VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.
CIK 1021642
Shares
1.19M
Value
63.29M
Filed
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
1.03M
Value
54.95M
Filed
Mar 31, 2026
MORGAN STANLEY
CIK 895421
Shares
831.36K
Value
44.24M
Filed
Mar 31, 2026
INVESCO LTD.
CIK 914208
Shares
799.98K
Value
42.57M
Filed
Mar 31, 2026
FIRST TRUST ADVISORS LP
CIK 1125816
Shares
755.91K
Value
40.23M
Filed
Mar 31, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
743.51K
Value
39.57M
Filed
Mar 31, 2026
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
656.17K
Value
34.92M
Filed
Mar 31, 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
32.63M
Filed
Mar 31, 2026
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
CIK 1644956
Shares
594.20K
Value
31.62M
Filed
Mar 31, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 884546
Shares
583.01K
Value
31.03M
Filed
Mar 31, 2026
GABELLI FUNDS LLC
CIK 1081407
Shares
520K
Value
27.67M
Filed
Mar 31, 2026
NUVEEN, LLC
CIK 1871926
Shares
502.52K
Value
26.74M
Filed
Mar 31, 2026
BANK OF NEW YORK MELLON CORP
CIK 1390777
Shares
476.48K
Value
25.36M
Filed
Mar 31, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK FINANCE, INC. | 1364742 | 6.50M | 234.84M | Jun 30, 2024 |
| 2 | BLACKROCK, INC. | 2012383 | 6.38M | 339.71M | Mar 31, 2026 |
| 3 | VANGUARD GROUP INC | 102909 | 4.71M | 219.96M | Dec 31, 2025 |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 2.63M | 139.86M | Mar 31, 2026 |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 1.83M | 97.53M | Mar 31, 2026 |
| 6 | STATE STREET CORP | 93751 | 1.61M | 85.43M | Mar 31, 2026 |
| 7 | VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | 1021642 | 1.19M | 63.29M | Mar 31, 2026 |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 1.03M | 54.95M | Mar 31, 2026 |
| 9 | MORGAN STANLEY | 895421 | 831.36K | 44.24M | Mar 31, 2026 |
| 10 | INVESCO LTD. | 914208 | 799.98K | 42.57M | Mar 31, 2026 |
| 11 | FIRST TRUST ADVISORS LP | 1125816 | 755.91K | 40.23M | Mar 31, 2026 |
| 12 | DIMENSIONAL FUND ADVISORS LP | 354204 | 743.51K | 39.57M | Mar 31, 2026 |
| 13 | GOLDMAN SACHS GROUP INC | 886982 | 656.17K | 34.92M | Mar 31, 2026 |
| 14 | DEPRINCE RACE & ZOLLO INC | 1008894 | 639.15K | 24.89M | Dec 31, 2023 |
| 15 | DUFF & PHELPS INVESTMENT MANAGEMENT CO | 765443 | 613.09K | 32.63M | Mar 31, 2026 |
| 16 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1644956 | 594.20K | 31.62M | Mar 31, 2026 |
| 17 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 884546 | 583.01K | 31.03M | Mar 31, 2026 |
| 18 | GABELLI FUNDS LLC | 1081407 | 520K | 27.67M | Mar 31, 2026 |
| 19 | NUVEEN, LLC | 1871926 | 502.52K | 26.74M | Mar 31, 2026 |
| 20 | BANK OF NEW YORK MELLON CORP | 1390777 | 476.48K | 25.36M | Mar 31, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.