| 07 May 2026 | OTHER | Northwest Natural Holding Co | 1,014.422 | 50.19 USD | |
| 02 Mar 2026 | OTHER | Northwest Natural Holding Co | 971.65 | 52.59 USD | |
| 06 Nov 2025 | OTHER | Northwest Natural Holding Co | 1,095.69 | 46.59 USD | |
| 06 Aug 2025 | OTHER | Northwest Natural Holding Co | 1,282.03 | 39.72 USD | |
| 07 May 2025 | OTHER | Northwest Natural Holding Co | 1,158.5 | 43.95 USD | |
| 03 Mar 2025 | OTHER | Northwest Natural Holding Co | 1,206 | 42.37 USD | |
| 20 Nov 2024 | OTHER | Northwest Natural Holding Co | 1,156.91 | 42.12 USD | |
| 05 Aug 2024 | OTHER | Northwest Natural Holding Co | 1,276.93 | 38.09 USD | |
| 07 May 2024 | OTHER | Northwest Natural Holding Co | 1,267.62 | 38.37 USD | |
| 26 Feb 2024 | OTHER | Northwest Natural Holding Co | 1,333.62 | 36.60 USD | |
| 06 Nov 2023 | OTHER | Northwest Natural Holding Co | 1,168.49 | 37.75 USD | |
| 04 Aug 2023 | OTHER | Northwest Natural Holding Co | 1,099.3 | 41.33 USD | |
| 05 May 2023 | OTHER | Northwest Natural Holding Co | 948.83 | 47.05 USD | |
| 27 Feb 2023 | OTHER | Northwest Natural Holding Co | 938.49 | 47.75 USD | |
| 09 Nov 2022 | OTHER | Northwest Natural Holding Co | 819.92 | 45.40 USD | |
| 05 Aug 2022 | OTHER | Northwest Natural Holding Co | 707.67 | 52.56 USD | |
| 05 May 2022 | OTHER | Northwest Natural Holding Co | 758.02 | 49.02 USD | |
| 28 Feb 2022 | OTHER | Northwest Natural Holding Co | 737.22 | 52.01 USD | |
| 08 Nov 2021 | OTHER | Northwest Natural Holding Co | 504.5 | 45.73 USD | |
| 06 Aug 2021 | OTHER | Northwest Natural Holding Co | 1,262.71 | 53.43 USD | |