KNF Knife River Corp
company
SEC Filings & Insider Trading Activity 2026

CIK: 1955520
Materials
Mining & Quarrying of Nonmetallic Minerals (No Fuels) 19 filings
Russell 2000

Latest Knife River Corp (KNF) SEC EDGAR filings in 2026, including the most recent 10-K annual report filed on February 20, 2026, a 10-Q quarterly report filed on May 5, 2026, an 8-K current report filed on August 4, 2026. SignalX aggregates every new 10-K annual report, 10-Q quarterly report, 8-K current report, and Form 4 insider transaction for Knife River Corp (KNF) (SEC CIK 1955520), with AI-powered section-by-section summaries updated daily.

10-Q: 10
8-K: 4
10-K: 3
SC 13G: 2

Latest 2026 SEC Filing Dates

10-K Annual Report
Feb 20, 2026
10-Q Quarterly Report
May 5, 2026
8-K Current Report
Aug 4, 2026

AI 10-K Annual Report Analysis
Latest 10-K (2025-12-31)

Business Overview

  • Vertically integrated aggregates-based construction materials and contracting services provider across 14 states with 208 aggregate sites
  • Completion of tax-free spin-off from MDU Resources on May 31, 2023, becoming independent public company (NYSE: KNF)
  • Acquisition of Strata Corporation on March 7, 2025, adding 30 years of aggregate reserves, 24 ready-mix plants, and 3 asphalt plants for $454 million
  • Expanded Central segment with Strata acquisition, including rail and trucking assets enhancing logistics capabilities

Risk Factors

  • Regulatory risk: IIJA federal highway funding, 46% of $1.2T authorization undisbursed in 14-state market as of Nov 2025
  • Macroeconomic risk: $745M-$810M North Dakota DOT 2026 bid lettings, up from $345M in 2025, affecting backlog and workload
  • Operational risk: Integration of five acquisitions in 2025 for $611.7M adding 29 ready-mix and 5 asphalt plants depends on synergy realization
  • Competitive risk: Higher-margin bidding initiatives target organic and acquisition growth in mid-size, high-growth markets against market peers
  • Financial risk: $611.7M acquisition spend in 2025 raises capital allocation focus amid margin improvement and cost control efforts

Management Discussion & Analysis

  • Revenue $3,146M in 2025 (excluding $631M internal sales); Aggregates $617.1M (16.3%), Ready-mix concrete $779.4M (20.6%), Contracting services $1,383.9M (36.6%)
  • Gross profit $577.3M, margin 18.4% overall; Aggregates margin 18.5%, Ready-mix concrete margin 17.1%, Contracting services margin 11.2%
  • Best performing segment: Contracting services with $1,383.9M revenue and 11.2% margin; worst: Contracting services margin lowest but highest revenue
  • Sold 32.5 million tons aggregates in 2025, 35% used internally supporting vertical integration
  • Industry risks: high fragmentation, transportation cost limits, seasonality, cyclicality tied to economy, reliance on public spending and regulatory approvals

Go deeper on Knife River Corp

Ask AI about KNF filings. Chat with the 10-K, 10-Q, and 8-K for instant answers on financials, risks, and guidance.

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Annual Reports Archive
10-K

AI-powered analysis of Knife River Corp (KNF) 10-K annual reports filed with SEC EDGAR.

Quarterly Reports Archive
10-Q

AI-powered analysis of Knife River Corp (KNF) 10-Q quarterly reports filed with SEC EDGAR.

Financial Summary
XBRL

FY2023FY2024FY2025
Profitability
Revenue-$2.9B$3.1B
Gross Profit$538.9M$569.8M$577.3M
Operating Income-$316.2M$285.9M
Net Income$182.9M$201.7M$157.1M
Gross Margin-19.7%18.4%
Op. Margin-10.9%9.1%
Net Margin-7.0%5.0%
Balance Sheet
Total Assets-$2.9B$3.7B
Equity$1.3B$1.5B$1.6B
ROE14.4%13.7%9.6%
Per Share
EPS$3.23$3.55$2.76
Cash Flow
Operating CF-$322.3M$278.5M

Source: XBRL financial data from Knife River Corp (KNF) 10-K filings on SEC EDGAR. All figures in USD. Key metrics include revenue, net income, gross profit, gross profit margin, operating income, EPS (diluted), total assets, stockholders' equity, return on equity (ROE), operating cash flow, and capital expenditure.

Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4

FormFiling DatePeriodAnalysisSEC
8-K
Aug 4, 2026---
8-K
May 18, 2026--
10-Q
May 5, 2026Mar 31, 2026-
8-K
May 5, 2026---
10-K
Feb 20, 2026Dec 31, 2025Analysis
8-K
Feb 17, 2026--
10-Q
Nov 5, 2025Sep 30, 2025Analysis
10-Q
Aug 5, 2025Jun 30, 2025-
10-Q
May 6, 2025Mar 31, 2025-
10-K
Feb 21, 2025Dec 31, 2024-
10-Q
Nov 4, 2024Sep 30, 2024-
10-Q
Aug 6, 2024Jun 30, 2024-
10-Q
May 7, 2024Mar 31, 2024-
10-K
Feb 27, 2024Dec 31, 2023-
SC 13G
Dec 8, 2023--
10-Q
Nov 6, 2023Sep 30, 2023-
10-Q
Aug 8, 2023Jun 30, 2023-
SC 13G
Jul 7, 2023--
10-Q
May 16, 2023Mar 31, 2023-

13F Fund Holdings: Quarterly Trend

Latest: Q1 2026

Aggregate KNF share value held by 13F filers tracked by SignalX, by quarter.

Position changes: Q4 2025Q1 2026
Top Buyers
Top Sellers
New Positions
Closed Positions

Source: 13F-HR filings on SEC EDGAR (aggregated from 221 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe.

Frequently Asked Questions

What are the latest KNF SEC filings in 2026?

Knife River Corp (KNF) has filed a 10-K annual report on February 20, 2026, a 10-Q quarterly report on May 5, 2026, an 8-K current report on August 4, 2026 with the SEC. SignalX tracks every new SEC EDGAR filing daily, including 10-K, 10-Q, 8-K, and Form 4 insider transactions, with AI-powered summaries of key sections.

When did KNF file its most recent 10-K annual report?

Knife River Corp (KNF) filed its most recent 10-K annual report on February 20, 2026. The 10-K includes audited financial statements, business overview, risk factors, and management discussion, all available on SignalX with AI-generated summaries and XBRL financial data.

How do I view KNF 10-Q quarterly reports?

Knife River Corp (KNF)'s most recent 10-Q quarterly report was filed on May 5, 2026. SignalX displays every KNF 10-Q with AI-generated summaries of the MD&A (Management Discussion & Analysis) and Risk Factors sections, plus links to the original SEC EDGAR document.

What 8-K current reports has KNF filed recently?

Knife River Corp (KNF)'s most recent 8-K was filed on August 4, 2026. 8-K filings disclose material corporate events such as earnings releases, executive changes, mergers, and other significant developments. SignalX surfaces each 8-K with item-level summaries so you can quickly see what happened.

Where can I find KNF insider trading activity (Form 4)?

SignalX aggregates every KNF Form 4 insider transaction from SEC EDGAR. Form 4 reports show when officers, directors, and 10% shareholders buy or sell company stock, with transaction code, share count, and price per share.

How often does KNF file with the SEC?

Knife River Corp (KNF) files a 10-K annual report once per year (typically within 60 days of fiscal year-end) and 10-Q quarterly reports three times per year. 8-K current reports are filed as needed when material events occur, and Form 4 insider transaction reports are due within two business days of a trade. SignalX monitors SEC EDGAR daily to surface every new KNF filing with AI-powered analysis.

What is the difference between 10-K, 10-Q, and 8-K SEC filings?

A 10-K is a comprehensive annual report with audited financials, business overview, and risk factors. A 10-Q is a shorter quarterly report with unaudited financials and management discussion. An 8-K is a current report filed when a material event occurs, such as earnings releases, executive changes, acquisitions, or other significant developments. SignalX provides AI-generated summaries for all three filing types for Knife River Corp (KNF).

What is KNF's SEC CIK number?

Knife River Corp (KNF)'s SEC CIK (Central Index Key) number is 1955520. The CIK is a unique identifier assigned by the SEC to every filing entity. You can use CIK 1955520 to look up all KNF filings on SEC EDGAR, or browse them here on SignalX with AI-powered analysis.

Where can I find KNF return on equity (ROE) and financial data?

SignalX extracts XBRL financial data from Knife River Corp (KNF) 10-K annual filings, including revenue, net income, gross profit, operating income, EPS, total assets, stockholders' equity, and operating cash flow. Return on equity (ROE) can be derived from net income divided by stockholders' equity. Multi-year financial trends are displayed in the Financial Summary table above.

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