18 insiders reported 115 Form 4 transactions for NorthWestern Energy Group, Inc. (NWE) over the past 18 months (most recent 2026-08-06). Recent activity: HORSFALL JAN ROBERT (Director) Buy 524 shares, Yingling Jeffrey W. (Director) Buy 524 shares, YAZDI MAHVASH (Director) Buy 524 shares, YAZDI MAHVASH (Director) Buy 524 shares, Sullivan Linda G (Director) Buy 768 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-06 | HORSFALL JAN ROBERT | Director | Buy | 524 | $37,529 |
| 2026-08-05 | Yingling Jeffrey W. | Director | Buy | 524 | $37,529 |
| 2026-07-13 | YAZDI MAHVASH | Director | Buy | 524 | $37,529 |
| 2026-07-13 | YAZDI MAHVASH | Director | Buy | 524 | $37,529 |
| 2026-07-13 | Sullivan Linda G | Director | Buy | 768 | $55,004 |
| 2026-07-13 | Goodin David L | Director | Buy | 524 | $37,529 |
| 2026-07-13 | Larson Kent T | Director | Buy | 524 | $37,529 |
| 2026-07-13 | Ide Britt E | Director | Buy | 524 | $37,529 |
| 2026-07-13 | Edwards Sherina M. | Director | Buy | 524 | $37,529 |
| 2026-05-12 | HORSFALL JAN ROBERT | Director | Buy | 569 | $37,520 |
| 2026-05-12 | Yingling Jeffrey W. | Director | Buy | 569 | $37,520 |
| 2026-04-07 | YAZDI MAHVASH | Director | Buy | 569 | $37,520 |
| 2026-04-07 | Sullivan Linda G | Director | Buy | 834 | $54,994 |
| 2026-04-07 | Goodin David L | Director | Buy | 569 | $37,520 |
| 2026-04-07 | Larson Kent T | Director | Buy | 569 | $37,520 |
| 2026-04-07 | Ide Britt E | Director | Buy | 569 | $37,520 |
| 2026-04-07 | Edwards Sherina M. | Director | Buy | 569 | $37,520 |
| 2026-03-03 | Hines John D | VP - Energy Supply & MT Gov | Buy | 1,354 | $92,681 |
| 2026-03-03 | Hines John D | VP - Energy Supply & MT Gov | Sell | 398 | $0 |
| 2026-03-02 | Lail Crystal Dawn | VP and CFO | Buy | 6,186 | $423,432 |
| 2026-03-02 | Lail Crystal Dawn | VP and CFO | Sell | 1,506 | $0 |
| 2026-03-02 | LaFave Bleau | VP - Bus Dvlpmt & Asset Mgmt | Buy | 671 | $45,930 |
| 2026-03-02 | LaFave Bleau | VP - Bus Dvlpmt & Asset Mgmt | Sell | 198 | $0 |
| 2026-03-02 | Merkel Jason | VP - Distribution | Buy | 1,331 | $91,107 |
| 2026-03-02 | Merkel Jason | VP - Distribution | Sell | 461 | $0 |
Source: SEC Form 4 filings · as of 2026-08-06