0001593968-21-002064.txt : 20210902 0001593968-21-002064.hdr.sgml : 20210902 20210902160359 ACCESSION NUMBER: 0001593968-21-002064 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210831 FILED AS OF DATE: 20210902 DATE AS OF CHANGE: 20210902 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Otto Robert P CENTRAL INDEX KEY: 0001693863 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-31303 FILM NUMBER: 211233245 MAIL ADDRESS: STREET 1: PO BOX 1400 CITY: RAPID CITY STATE: SD ZIP: 57709 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 2021-08-31 0001130464 BLACK HILLS CORP /SD/ BKH 0001693863 Otto Robert P PO BOX 1400 RAPID CITY SD 57709 true false false false Common Stock 2021-09-01 4 I false 22.9260 71.2556 A 2914.2871 D Phantom Stock Unit 2021-08-31 4 A false 373.2404 70.33 A Common Stock 373.2404 7661.1656 I By Trust Phantom Stock Unit 2021-09-01 4 A false 60.7469 71.2556 A Common Stock 60.7469 7721.9125 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 2021-09-02