| UNITED STATES | ||
| SECURITIES AND EXCHANGE COMMISSION | ||
| Washington, D.C. 20549 | ||
| SCHEDULE 14A | ||
| Proxy Statement Pursuant to Section 14(a) of | ||
| the Securities Exchange Act of 1934 (Amendment No. ) | ||
| Filed by the Registrant x | |||||
| Filed by a Party other than the Registrant o | |||||
| Check the appropriate box: | |||||
| o | Preliminary Proxy Statement | ||||
| o | Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) | ||||
| o | Definitive Proxy Statement | ||||
| x | Definitive Additional Materials | ||||
| o | Soliciting Material Pursuant to §240.14a-12 | ||||
| NorthWestern Energy Group, Inc. | ||
| (Name of Registrant as Specified In Its Charter) | ||
| (Name of Person(s) Filing Proxy Statement, if other than the Registrant) | ||
| Payment of Filing Fee (Check the appropriate box): | |||||
| x | No fee required. | ||||
| o | Fee paid previously with preliminary materials. | ||||
| o | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a6(i)(1) and 0-11 | ||||
