Northwest Natural Holding Company (NWN)
NYSE: NWN · Natural Gas Distribution · Portland, OR · filing with the SEC since 2018
Grade4.8
◀ Past 6.5● Present 3.8▶ Future 4.9
Who owns Northwest Natural Holding Company
As filed with the SECHolders of 5% or more
3
Blackrock, Inc. holds 15% of Common Stock, as its SCHEDULE 13G/A filed Apr 24, 2026 says.
Directors and officers
18
report now, of 35 people on the record since 2018. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 3 named at left.
Holders of 5% or moreshare of the class, as filed
Blackrock, Inc.
SCHEDULE 13G/A · filed Apr 24, 2026 · Common Stock · 16.5% in Apr 30, 2025
Vanguard Portfolio Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Vanguard Capital Management
SCHEDULE 13G · filed Apr 30, 2026 · Common Stock
State Street Corporation
SCHEDULE 13G · filed May 12, 2026 · COMMON STOCK · reported falling below 5%, from 5.2% in Aug 11, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 27, 2026 · Common Stock · reported falling below 5%
What NWN reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Northwest Holdings
An entity · legal entity · owns, named in the 10-K filed Feb 27, 2026
Northwest Natural Gas Company
An entity · consolidated entity, legal entity, subsidiary · owns, named in the 10-K filed Feb 27, 2026
NWN Water
An entity · legal entity · owns, named in the 10-K filed Feb 27, 2026
Other Northwest Holdings
An entity · co registrant · owns, named in the 10-K filed Feb 27, 2026
Si Energy
An entity · co registrant · owns, named in the 10-K filed Feb 27, 2026
Pines
A company bought · acquisition · May 2025 · owns, named in the 10-K filed Feb 27, 2026
ICH Puttman
A company bought · acquisition · owns, named in the 10-K filed Feb 27, 2026
Si Energy
A company bought · acquisition, legal entity · owns, named in the 10-K filed Feb 27, 2026
60 subsidiaries in 1 country, from the list filed with the 10-K filed Feb 27, 2026.
Insider tradesForm 4
17sales
2purchases
6sales on a scheduled plan
7people selling
$800,000sold, in dollars
$100,000bought, in dollars
Open-market trades on Form 4 from Nov 9, 2025 to Nov 9, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 9, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window9 of 35 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Anderson David Hugo | CEO | 6 | $700,000 | 6 | 0 | $0 |
| Weber David A. | VP, Gas Supply | 2 | $100,000 | 0 | 0 | $0 |
| Palfreyman Justin | President & CEO | 0 | $0 | 0 | 1 | $100,000 |
| Bragdon Peter J | director | 0 | $0 | 0 | 1 | $0 |
| Heiting Kimberly A. | President | 2 | $0 | 0 | 0 | $0 |
| Rogers Melinda B. | VP, Chief HR and | 1 | $0 | 0 | 0 | $0 |
| Saathoff Mardilyn | Chief Legal Officer & SVP, Reg | 2 | $0 | 0 | 0 | $0 |
| Karney Joseph S | VP, Eng. & Utility Operations | 2 | $0 | 0 | 0 | $0 |
| Kravitz Zachary D | VP, Regulatory Affairs and | 2 | $0 | 0 | 0 | $0 |