0001593968-21-002496.txt : 20211202 0001593968-21-002496.hdr.sgml : 20211202 20211202144001 ACCESSION NUMBER: 0001593968-21-002496 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20211130 FILED AS OF DATE: 20211202 DATE AS OF CHANGE: 20211202 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Taylor Teresa CENTRAL INDEX KEY: 0001443289 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-31303 FILM NUMBER: 211466101 MAIL ADDRESS: STREET 1: FIRST INTERSTATE BANCSYSTEM, INC STREET 2: PO BOX 30918 CITY: BILLINGS STATE: MT ZIP: 59116-0918 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: BLACK HILLS CORP /SD/ CENTRAL INDEX KEY: 0001130464 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC SERVICES [4911] IRS NUMBER: 460458824 STATE OF INCORPORATION: SD FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 7001 MT RUSHMORE RD STREET 2: PO BOX 1400 CITY: RAPID CITY STATE: SD ZIP: 57709 BUSINESS PHONE: 6057212343 MAIL ADDRESS: STREET 1: 7001 MT RUSHMORE RD STREET 2: PO BOX 1400 CITY: RAPID STATE: SD ZIP: 57709 FORMER COMPANY: FORMER CONFORMED NAME: BLACK HILLS HOLDING CORP DATE OF NAME CHANGE: 20001222 4 1 primary_01.xml PRIMARY DOCUMENT X0306 4 2021-11-30 0001130464 BLACK HILLS CORP /SD/ BKH 0001443289 Taylor Teresa PO BOX 1400 RAPID CITY SD 57709 true false false false Common Stock 2021-12-01 4 I false 0.0080 65.0068 A 2337.8363 D Phantom Stock Unit 2021-11-30 4 A false 409.3886 64.12 A Common Stock 409.3886 8648.1339 I By Trust Phantom Stock Unit 2021-12-01 4 A false 79.1554 65.0068 A Common Stock 79.1554 8727.2893 I By Trust 1 for 1 conversion ratio Derivative security is exercisable upon retirement under terms of the agreement. Derivative security expires upon retirement under terms of the agreement. /s/Lorna J. Gunderman 2021-12-02