144 0001634403 XXXXXXXX LIVE 0001993004 NorthWestern Energy Group, Inc. 000-56598 3010 WEST 69TH STREET SIOUX FALLS SD 57108 605-978-2900 Ide Britt E Director Common Stock Georgeson Securities Corp

144 Fernwood Ave EDISON NJ 08837

700 37471.00 61314217 12/09/2024 NASDAQ Common Stock 12/09/2024 Restricted Stock Vesting Northwestern Energy Group Inc, N 700 12/09/2024 Services Rendered Y Securities sold and date of payment are various 12/09/2024 Conformed Signature on File