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Jeffrey W. Yingling

Director, NorthWestern Energy Group, Inc., as of Oct 2026

From SEC EDGAR, not claimed yetUpdated Oct 15, 2026

Jeffrey W. Yingling is Director at NorthWestern Energy Group, Inc.

Director of NorthWestern Energy Group, Inc.

Works at

NNorthWestern Energy Group, Inc.Directorfrom SEC EDGAR

as of Oct 2026, from an SEC filing