<SEC-DOCUMENT>0001593968-25-000975-index.html : 20250821 <SEC-HEADER>0001593968-25-000975.hdr.sgml : 20250821 <ACCEPTANCE-DATETIME>20250821122902 ACCESSION NUMBER: 0001593968-25-000975 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20250801 FILED AS OF DATE: 20250821 DATE AS OF CHANGE: 20250821 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Redden Donald Lee JR CENTRAL INDEX KEY: 0002082700 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-31303 FILM NUMBER: 251239474 MAIL ADDRESS: STREET 1: 7001 MT. RUSHMORE RD CITY: RAPID CITY STATE: SD ZIP: 57702 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: BLACK HILLS CORP /SD/ CENTRAL INDEX KEY: 0001130464 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC SERVICES [4911] ORGANIZATION NAME: 01 Energy & Transportation EIN: 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 </SEC-HEADER> <DOCUMENT> <TYPE>4 <SEQUENCE>1 <FILENAME>primary_01.xml <DESCRIPTION>PRIMARY DOCUMENT <TEXT> Document 1 - file: primary_01.html
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