NorthWestern Energy annual meeting elects all directors, ratifies auditor, approves say-on-pay

2. Ratification of Independent Registered Public Accounting Firm. The votes cast with respect to the ratification of Deloitte & Touche LLP as our independent registered accounting firm for 2026 were as follows: For Against Abstain 54,542,567 1,405,988 23,559

1. Election of Directors. The Board of Directors of the Company nominated nine persons for election as directors of the Company, each to hold office for a one-year term expiring at the 2027 annual meeting of stockholders and until his or her successor is duly elected and qualified. Each nominee was an incumbent director, and no other person was nominated. The votes cast for or withheld with respect to each nominee were as follows: Name of Director For Withheld Broker Non-Votes Brian Bird 51,101,454 111,768 4,758,892 Sherina Maye Edwards 50,951,533 261,689 4,758,892 Dave Goodin 51,102,859 110,363 4,758,892 Jan Horsfall 50,509,775 703,447 4,758,892 Britt Ide 50,000,831 1,212,391 4,758,892 Kent Larson 51,104,441 108,781 4,758,892 Linda Sullivan 51,055,568 157,654 4,758,892 Mahvash Yazdi 50,573,556 639,666 4,758,892 Jeffrey Yingling 50,906,318 306,904 4,758,892

3. Advisory Vote on Executive Compensation. The votes cast with respect to the advisory vote to approve named executive officer compensation were as follows: For Against Abstain Broker Non-Votes 50,209,283 944,608 59,331 4,758,892