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BLACK HILLS CORP /SD/

For the period ended Dec 31, 2025. Filed Feb 11, 2026.

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A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 11, 2026

BKH$84.87+0.3%Stored close · as of Nov 6, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Contents

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

BLACK HILLS CORPORATION
By:/S/ LINDEN R. EVANS
Linden R. Evans, President and Chief Executive Officer
Dated:February 11, 2026

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

/S/ STEVEN R. MILLSDirector andFebruary 11, 2026
Steven R. MillsChairman
/S/ LINDEN R. EVANSDirector andFebruary 11, 2026
Linden R. Evans, PresidentPrincipal Executive Officer
and Chief Executive Officer
/S/ KIMBERLY F. NOONEYPrincipal Financial andFebruary 11, 2026
Kimberly F. Nooney, Senior Vice PresidentAccounting Officer
and Chief Financial Officer
/S/ ROBERT F. BEARDDirectorFebruary 11, 2026
Robert Beard
/S/ BARRY M. GRANGERDirectorFebruary 11, 2026
Barry M. Granger
/S/ TONY A. JENSENDirectorFebruary 11, 2026
Tony A. Jensen
/S/ KATHLEEN S. MCALLISTERDirectorFebruary 11, 2026
Kathleen S. McAllister
/S/ ROBERT P. OTTODirectorFebruary 11, 2026
Robert P. Otto
/S/ SCOTT M. PROCHAZKADirectorFebruary 11, 2026
Scott M. Prochazka
/S/ TERESA A. TAYLORDirectorFebruary 11, 2026
Teresa A. Taylor
/S/ ANNE G. WALESKIDirectorFebruary 11, 2026
Anne Waleski
ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.