Based on data from the past 90 days ending February 19, 2026, NorthWestern Energy's three largest insider shareholders are President And Ceo Brian B Bird (201.94K shares), Director Dana J Dykhouse (42.75K shares), Vp Energy Supply & Mt Gov John D Hines (38.60K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Brian B Bird | President And Ceo | 201,935 | 23 Jan, 2026 |
| Dana J Dykhouse | 42,749 | 02 Apr, 2024 | |
| John D Hines | Vp Energy Supply & Mt Gov | 38,599 | 20 Jan, 2026 |
| Bobbi L Schroeppel | Vp Hr And Cust Care And Corp Comm | 35,336 | 23 Jan, 2026 |
| Linda G Sullivan | 32,632 | 06 Jan, 2026 | |
| Crystal Dawn Lail | Vp And Cfo | 29,170 | 23 Jan, 2026 |
| Michael R Cashell | Vp Transmission | 24,354 | 23 Jan, 2026 |
| Jeffrey W. Yingling | 22,821 | 04 Feb, 2026 | |
| Mahvash Yazdi | 21,592 | 06 Jan, 2026 | |
| Anthony Thomas Clark | 16,816 | 13 Dec, 2024 | |
| Britt E Ide | 14,180 | 06 Jan, 2026 | |
| Jeanne Vold | Vp Technology | 13,020 | 23 Jan, 2026 |
| Kent T Larson | 10,948 | 06 Jan, 2026 | |
| Jan Robert Horsfall | 10,505 | 04 Feb, 2026 | |
| Sherina M. Edwards | 8,885 | 06 Jan, 2026 | |
| Shannon Heim | Vp And General Counsel | 7,195 | 20 Jan, 2026 |
| Jason Merkel | Vp Distribution | 4,746 | 23 Jan, 2026 |
| David L Goodin | 4,531 | 06 Jan, 2026 | |
| Jeffrey B. Berzina | Controller | 3,999 | 26 Jan, 2026 |
| Bleau Lafave | Vp Bus Dvlpmt & Asset Mgmt | 2,722 | 23 Jan, 2026 |
| Cynthia Fang | Vp Regulatory | 1,412 | 14 Mar, 2024 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 03 Feb, 2026 | Jan Robert Horsfall | Common Stock | A | 581 | $64.54 | 10,505 | D | A |
| 03 Feb, 2026 | Jeffrey W. Yingling | Common Stock | A | 581 | $64.54 | 22,821 | D | A |
| 22 Jan, 2026 | Brian B Bird | Common Stock | D | 2,397 | $64.54 | 201,935 | D | F |
| 22 Jan, 2026 | Bobbi L Schroeppel | Common Stock | D | 327 | $64.54 | 35,336 | D | F |
| 22 Jan, 2026 | Jeffrey B. Berzina | Common Stock | D | 124 | $64.54 | 3,999 | D | F |
| 22 Jan, 2026 | Michael R Cashell | Common Stock | D | 381 | $64.54 | 24,354 | D | F |
| 22 Jan, 2026 | Crystal Dawn Lail | Common Stock | D | 808 | $64.54 | 29,170 | D | F |
| 22 Jan, 2026 | Jeanne Vold | Common Stock | D | 223 | $64.54 | 13,020 | D | F |
| 22 Jan, 2026 | Jason Merkel | Common Stock | D | 206 | $64.54 | 4,746 | D | F |
| 22 Jan, 2026 | Bleau Lafave | Common Stock | D | 89 | $64.54 | 2,722 | D | F |
| 15 Jan, 2026 | John D Hines | Common Stock | D | 84 | $64.54 | 38,599 | D | F |
| 15 Jan, 2026 | Shannon Heim | Common Stock | D | 442 | $64.54 | 7,195 | D | F |
| 02 Jan, 2026 | Mahvash Yazdi | Common Stock | A | 581 | $64.54 | 21,592 | D | A |
| 02 Jan, 2026 | Linda G Sullivan | Common Stock | A | 852 | $64.54 | 32,632 | D | A |
| 02 Jan, 2026 | David L Goodin | Common Stock | A | 581 | $64.54 | 4,531 | D | A |
| 02 Jan, 2026 | Kent T Larson | Common Stock | A | 581 | $64.54 | 10,948 | D | A |
| 02 Jan, 2026 | Britt E Ide | Common Stock | A | 581 | $64.54 | 14,180 | D | A |
| 02 Jan, 2026 | Sherina M. Edwards | Common Stock | A | 581 | $64.54 | 8,885 | D | A |
| 19 Dec, 2025 | Brian B Bird | Common Stock | D | 3,129 | $67.84 | 202,884 | D | F |
| 04 Nov, 2025 | Jan Robert Horsfall | Common Stock | A | 640 | $58.61 | 9,896 | D | A |