Northwest Natural Holding Company
DE ˙ DB ˙ US66765N1054
43,34 € ↑1,64 (3,93%)
2026-06-05
DEL PRIS
SecurityDE:NWK / Northwest Natural Holding Company
InstitutionRhumbline Advisers
Latest Disclosed Ownership122,388 shares
Latest Disclosed Value $ 6,513,469
Rhumbline Advisers reports 1.55% increase in ownership of NWK / Northwest Natural Holding Company

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 122,388 shares of Northwest Natural Holding Company (DE:NWK) valued at $5,610,266 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 120,525 shares of Northwest Natural Holding Company. This represents a change in shares of 1.55% during the quarter. The current value of the position is $5,304,296 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F NORTHWEST NATURAL HOLDING COM 66765N105 122,388 1,863 1.55 6,513 15.62 0.0056
2026-02-13 2025-12-31 13F NORTHWEST NATURAL HOLDING COM 66765N105 120,525 -12,349 -9.29 5,633 -5.64 0.0046
2025-11-06 2025-09-30 13F NORTHWEST NATURAL HOLDING COM 66765N105 132,874 400 0.30 5,970 13.48 0.0048
2025-08-12 2025-06-30 13F NORTHWEST NATURAL HOLDING COM 66765N105 132,474 7,573 6.06 5,262 -1.39 0.0045
2025-05-29 2025-03-31 13F/A-1 NORTHWEST NATURAL HOLDING COM 66765N105 124,901 -4,067 -3.15 5,336 4.59 0.0050
2025-04-08 2025-03-31 13F NORTHWEST NATURAL HOLDING COM 66765N105 124,901 -4,067 5,336 0.0050
2025-05-29 2024-12-31 13F/A-1 NORTHWEST NATURAL HOLDING COM 66765N105 128,968 2,602 2.06 5,102 -1.11 0.0046
2025-01-30 2024-12-31 13F NORTHWEST NATURAL HOLDING COM 66765N105 128,968 2,602 5,102 0.0046
2024-11-12 2024-09-30 13F NORTHWEST NATURAL HOLDING COM 66765N105 126,366 -5,277 -4.01 5,158 8.52 0.0047
2024-08-01 2024-06-30 13F NORTHWEST NATURAL HOLDING COM 66765N105 131,643 5,068 4.00 4,754 0.89 0.0045
2024-05-09 2024-03-31 13F NORTHWEST NATURAL HOLDING COM 66765N105 126,575 3,739 3.04 4,711 -1.51 0.0045
2024-02-08 2023-12-31 13F NORTHWEST NATURAL HOLDING COM 66765N105 122,836 4,051 3.41 4,783 5.54 0.0050
2023-11-09 2023-09-30 13F NORTHWEST NATURAL HOLDING COM 66765N105 118,785 -602 -0.50 4,533 -11.81 0.0053
2023-08-08 2023-06-30 13F NORTHWEST NATURAL HOLDING COM 66765N105 119,387 5,813 5.12 5,140 102,680.00 0.0058
2023-05-11 2023-03-31 13F NORTHWEST NATURAL HOLDING COM 66765N105 113,574 8,155 7.74 5 -99.90 0.0067
2023-02-14 2022-12-31 13F NORTHWEST NATURAL HOLDING COM 66765N105 105,419 -1,188 -1.11 5,017 8.48 0.0067
2022-11-10 2022-09-30 13F NORTHWEST NATURAL HOLDING COM 66765N105 106,607 4,320 4.22 4,625 -14.84 0.0069
2022-08-11 2022-06-30 13F NORTHWEST NATURAL HOLDING COM 66765N105 102,287 16,581 19.35 5,431 22.51 0.0079
2022-05-12 2022-03-31 13F NORTHWEST NATURAL HOLDING COM 66765N105 85,706 11 0.01 4,433 6.05 0.0057
2022-02-10 2021-12-31 13F NORTHWEST NATURAL HOLDING COM 66765N105 85,695 -239 -0.28 4,180 5.77 0.0051
2021-11-12 2021-09-30 13F NORTHWEST NATURAL HOLDING COM 66765N105 85,934 -11,438 -11.75 3,952 -22.72 0.0053
2021-08-05 2021-06-30 13F NORTHWEST NATURAL HOLDING COM 66765N105 97,372 -328,339 -77.13 5,114 -74.14 0.0067
2021-05-06 2021-03-31 13F TCF FINANCIAL COM 872307103 425,711 -2,530 -0.59 19,779 24.77 0.0269
2021-05-06 2021-03-31 13F NORTHWEST NATURAL HOLDING COM 66765N105 100,377 -768 5,415 0.0074
2021-02-10 2020-12-31 13F TCF FINANCIAL COM 872307103 428,241 24,851 6.16 15,853 68.24 0.0219
2021-02-10 2020-12-31 13F NORTHWEST NATURAL HOLDING COM 66765N105 101,145 5,368 4,652 0.0064
2020-11-12 2020-09-30 13F TCF FINANCIAL COM 872307103 403,390 -11,068 -2.67 9,423 -22.72 0.0148
2020-11-12 2020-09-30 13F NORTHWEST NATURAL HOLDING COM 66765N105 95,777 -6,892 4,347 0.0068
2020-08-13 2020-06-30 13F TCF FINANCIAL COM 872307103 414,458 7,008 1.72 12,193 32.06 0.0204
2020-08-13 2020-06-30 13F NORTHWEST NATURAL HOLDING COM 66765N105 102,669 -8,499 5,728 0.0096
2020-05-06 2020-03-31 13F TCF FINANCIAL COM 872307103 407,450 29,989 7.94 9,233 -47.73 0.0193
2020-05-06 2020-03-31 13F NORTHWEST NATURAL HOLDING COM 66765N105 111,168 5,798 6,865 0.0144
2020-02-05 2019-12-31 13F TCF FINANCIAL COM 872307103 377,461 1,868 0.50 17,665 23.54 0.0295
2020-02-05 2019-12-31 13F NORTHWEST NATURAL HOLDING COM 66765N105 105,370 6,233 7,769 0.0130
2019-10-23 2019-09-30 13F TCF FINANCIAL COM 872307103 375,593 -84,761 -18.41 14,299 49.40 0.0261
2019-10-23 2019-09-30 13F NORTHWEST NATURAL HOLDING COM 66765N105 99,137 -361,217 7,072 0.0129
2019-08-14 2019-06-30 13F TCF FINANCIAL COM 872307103 460,354 370,804 414.07 9,571 62.86 0.0180
2019-08-14 2019-06-30 13F NORTHWEST NATURAL HOLDING COM 66765N105 93,796 4,246 6,519 0.0122
2019-05-01 2019-03-31 13F NORTHWEST NATURAL HOLDING COM 66765N105 89,550 574 0.65 5,877 9.26 0.0114
2019-01-31 2018-12-31 13F NORTHWEST NATURAL HOLDING COM 66765N105 88,976 15,110 20.46 5,379 8.84 0.0117
2018-11-07 2018-09-30 13F NORTHWEST NATURAL HOLDING COM 66765N105 73,866 73,866 4,942 0.0095
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.