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Knife River Corp

For the period ended Jun 30, 2026. Filed Aug 4, 2026.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Jun 30, 2026 · Filed Aug 4, 2026

KNF$58.94+4.5%Stored close · as of Nov 9, 2026

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

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Contents

11. Goodwill and Other Intangible Assets

Note 11 -Goodwill and Other Intangible Assets

The changes in the carrying amount of goodwill were as follows:

Balance at January 1, 2026Goodwill Acquired During the YearMeasurement Period AdjustmentsBalance at June 30, 2026
(In thousands)
West$137,575$—$306$137,881
Mountain26,81654,20510,90391,924
Central323,903—(1,086)322,817
Energy Services31,374——31,374
Total$519,668$54,205$10,123$583,996
Balance at January 1, 2025Goodwill Acquired During the YearMeasurement Period AdjustmentsBalance at June 30, 2025
(In thousands)
West$123,674$—$—$123,674
Mountain26,816——26,816
Central115,322172,491(5,544)282,269
Energy Services31,413—(39)31,374
Total$297,225$172,491$(5,583)$464,133
Balance at January 1, 2025Goodwill Acquired During the YearMeasurement Period AdjustmentsBalance at December 31, 2025
(In thousands)
West$123,674$11,904$1,997$137,575
Mountain26,816——26,816
Central115,322212,962(4,381)323,903
Energy Services31,413—(39)31,374
Total$297,225$224,866$(2,423)$519,668

Index

Other amortizable intangible assets were as follows:

June 30, 2026June 30, 2025December 31, 2025
(In thousands)
Customer relationships$36,030$32,503$34,699
Less accumulated amortization17,55813,31615,789
18,47219,18718,910
Noncompete agreements2,6553,1073,107
Less accumulated amortization2,5372,7972,904
118310203
Tradename7,4707,4707,470
Less accumulated amortization1,245498871
6,2256,9726,599
Backlog3,3909,29010,395
Less accumulated amortization3243,2909,052
3,0666,0001,343
Other6,2005,9685,968
Less accumulated amortization410290343
5,7905,6785,625
Total$33,671$38,147$32,680

The previous tables include goodwill and intangible assets associated with the business combinations completed in 2026 and 2025. For more information related to these business combinations, see Note 10.

Amortization expense for amortizable intangible assets for the three and six months ended June 30, 2026, was $3.3 million and $6.4 million, respectively. Amortization expense for amortizable intangible assets for the three and six months ended June 30, 2025, was $5.0 million and $6.1 million, respectively. Estimated amortization expense for identifiable intangible assets as of June 30, 2026, was:

Remainder of 20262027202820292030Thereafter
(In thousands)
Amortization expense$5,379$4,828$4,340$3,736$2,916$12,472
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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.