How many subsidiaries does Knife River Corp file with the SEC?

41, listed in its most recent exhibit 21. They are incorporated across 12 jurisdictions, led by Alaska, Delaware, South Dakota. That exhibit is filed with the company's annual report and is the company's own list, not an estimate.

Is Knife River Corp financially healthy?

Knife River Corp scores 3 out of 9 on the Piotroski F-score. Its Altman Z-score puts it in the grey zone. Every test and the numbers behind it are shown above, so the arithmetic is checkable rather than something you have to take on trust.

Who are the largest institutional holders of Knife River Corp?

Among the managers tracked here, the biggest positions as of the 2026-Q2 13F filings are BlackRock, Inc. (adding), PRICE T ROWE ASSOCIATES INC /MD/ (adding), Capital World Investors (adding). Direction is the change in share count against that manager's own previous filing; managers with no prior filing are left out rather than counted as new buyers.

Knife River Corp (KNF)

NYSE · Mining & Quarrying of Nonmetallic Minerals (No Fuels)

One email a week from me: what it filed, which 13F holders added or cut, where its scores stand. Free.

construction materials company

Corporate structure

41 entities across 12 jurisdictions. Read directly from the company’s own 10-K EX-21 filed 2026-02-20 — see the exhibit.

Which other public companies file entities in the same places:

Delaware13 California5 Oregon5 South Dakota4 Alaska3 Minnesota3 Hawaii2 North Dakota2 Montana1 Wyoming1 Texas1 Utah1

Subsidiaries of Knife River Corp as disclosed in its SEC filing
Entity	Jurisdiction	Note
Alaska Basic Industries, Inc.	Alaska
Albina Asphalt, LLC	Delaware
Anchorage Sand and Gravel Company, Inc.	Alaska
ARC Fabricators, L.L.C.	South Dakota
Baldwin Contracting Company, Inc.	California
Bearcat Transportation, LLC	Delaware
Central Oregon Redi-Mix, LLC	Oregon
Concrete, Inc.	California
Connolly-Pacific Co.	California
D S S Company	California
Ellis & Eastern Company

Financial health

Two standard screens, computed from the XBRL in FY2025 against FY2024. Every test shows the numbers behind it — a score with its inputs hidden is a number you cannot check.

Piotroski F-score

3 / 9

PASSReturn on assets positiveROA 4.3%
PASSOperating cash flow positiveOCF 278M
FAILReturn on assets improving7.1% → 4.3%
PASSCash flow exceeds earningsOCF 278M vs NI 157M
FAILLong-term debt ratio falling23.4% → 31.6% of assets
FAILCurrent ratio improving2.67 → 2.54
FAILNo share dilution57M → 57M shares
FAILGross margin improving19.7% → 18.4%
FAILAsset turnover improving1.02× → 0.86×

Altman Z-score

2.55grey

Bankruptcy-risk screen combining working capital, retained earnings, operating income, market value against liabilities, and asset turnover. Above 2.99 is the safe zone; below 1.81 is distress.

Six-year record

Year	Revenue	Net income	Free cash flow	Gross margin	Shares
FY2021	$2.2B	$129.8M	$7.0M	15.6%	56,566,000
FY2022	$2.5B	$116.2M	$29.3M	14.2%	56,566,000
FY2023	$2.8B	$182.9M	$211.4M	19.0%	56,668,000
FY2024	$2.9B	$201.7M	$149.9M	19.7%	56,844,000
FY2025	$3.1B	$157.1M	−$69.6M	18.4%	56,895,000

Ownership flow

13 institutions tracked — 9 added, 3 reduced, 1 opened a new position, 1 sold out.

Institutional holders of Knife River Corp and their share-count change
Manager	Kind	Shares	Change	Value
PRICE T ROWE ASSOCIATES INC /MD/	Active fund	5,116,421	+619,137	$428.0M
Capital World Investors	Active fund	3,244,201	+600,717	$271.4M
MORGAN STANLEY	Active fund	1,069,907	−320,120	$89.5M
BlackRock, Inc.	Index	7,290,232	+318,399

Identity

CIK: 0001955520
SIC: 1400 · Mining & Quarrying of Nonmetallic Minerals (No Fuels)
Incorporated: DE
Headquarters: BISMARCK, ND
Founded: 1917-00-00

Ownership

Institutional: 103.6%
Institutions: 526
Insiders: 0.4%

Ownership percentages are a vendor aggregate, not a filing — unlike everything else on this page.

Other mining & quarrying of nonmetallic minerals (no fuels) companies

Knife River Corp files under SIC 1400 — all 6 mining & quarrying of nonmetallic minerals (no fuels) companies compared on assets and F-score.

MARTIN MARIETTA MATERIALS INCMLM Vulcan Materials COVMC MDU RESOURCES GROUP INCMDU COMPASS MINERALS INTERNATIONAL INCCMP Smart Sand, Inc.SND

Questions about Knife River Corp

How many subsidiaries does Knife River Corp file with the SEC?: 41, listed in its most recent exhibit 21. They are incorporated across 12 jurisdictions, led by Alaska, Delaware, South Dakota. That exhibit is filed with the company's annual report and is the company's own list, not an estimate.
Is Knife River Corp financially healthy?: Knife River Corp scores 3 out of 9 on the Piotroski F-score. Its Altman Z-score puts it in the grey zone. Every test and the numbers behind it are shown above, so the arithmetic is checkable rather than something you have to take on trust.
Who are the largest institutional holders of Knife River Corp?: Among the managers tracked here, the biggest positions as of the 2026-Q2 13F filings are BlackRock, Inc. (adding), PRICE T ROWE ASSOCIATES INC /MD/ (adding), Capital World Investors (adding). Direction is the change in share count against that manager's own previous filing; managers with no prior filing are left out rather than counted as new buyers.

This page is one panel of the terminal

The structure map above is the Corporate Blueprint, and in the desktop it is interactive — click any entity to re-centre the map on it and walk the ownership chain. It sits alongside the screener, the scorecard and the filings lab on one desk, on your machine.

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Sourced from SEC EDGAR primary filings. Figures are as reported by the company and are not investment advice. Scores are standard published screens computed from those filings; every input is shown above so you can check the arithmetic.