Updated Jul 16, 2026 · Last SEC filing 2026-07-13
NorthWestern Energy Group, Inc. (NWE) has filed 8 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-13. 6 Form 8-K material event filings were reported by NWE in the last 90 days. InsiderAlpha tracks every NWE SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Electric & Other Services Combined (SIC 4931) |
|---|---|
| SEC CIK | 0001993004 |
| Form 4 filings (90d) | 8 |
|---|---|
| Form 8-K filings (90d) | 6 |
| Latest Form 4 filing | 2026-07-13 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Larson Kent T | Director | A — Grant or award | 524 | $71.62 | $38K | SEC | |
| Edwards Sherina M. | Director | A — Grant or award | 524 | $71.62 | $38K | SEC | |
| Ide Britt E | Director | A — Grant or award | 524 | $71.62 | $38K | SEC | |
| Sullivan Linda G | Director | A — Grant or award | 768 | $71.62 | $55K | SEC | |
| Goodin David L | Director | A — Grant or award | 524 | $71.62 | $38K | SEC | |
| YAZDI MAHVASH | Director | A — Grant or award | 524 | $71.62 | $38K | SEC | |
| HORSFALL JAN ROBERT | Director | A — Grant or award | 569 | $65.94 | $38K | SEC | |
| Yingling Jeffrey W. | Director | A — Grant or award | 569 | $65.94 | $38K | SEC | |
| YAZDI MAHVASH | Director | A — Grant or award | 569 | $65.94 | $38K | SEC | |
| Ide Britt E | Director | A — Grant or award | 569 | $65.94 | $38K | SEC | |
| Goodin David L | Director | A — Grant or award | 569 | $65.94 | $38K | SEC | |
| Larson Kent T | Director | A — Grant or award | 569 | $65.94 | $38K | SEC | |
| Sullivan Linda G | Director | A — Grant or award | 834 | $65.94 | $55K | SEC | |
| Edwards Sherina M. | Director | A — Grant or award | 569 | $65.94 | $38K | SEC | |
| Hines John D | VP - Energy Supply & MT Gov | F — Tax withholding / forfeiture | 398 | $0.00 | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for NorthWestern Energy Group, Inc. (NWE). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| YAZDI MAHVASH | 1 | $38K |
| Sullivan Linda G | 1 | $55K |
| Goodin David L | 1 | $38K |
| Larson Kent T | 1 | $38K |
| Ide Britt E | 1 | $38K |
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in NWE insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
Open the live NWE dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.