How many insider trades does FilingIQ track for KNF?

FilingIQ tracks 71 Form 4 insider transactions for KNF (Knife River Corp), covering filings from May 31, 2023 onwards. 8 of those were filed in the last 90 days.

Are KNF insiders net buyers or net sellers?

Across the full Form 4 history for KNF, 1 transactions (1%) were open-market purchases and 0 (0%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.

Where does KNF insider data come from?

Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

What sector is KNF in?

Knife River Corp (KNF) is classified in the Basic Materials sector, specifically Building Materials, with a current market capitalisation of $5.09B.

KNF insider trading

NYSE Basic Materials

Knife River Corp — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

Last 90 days

Buys / sells

1% / 0%

Market cap

$5.09B

About Knife River Corp

Knife River Corporation, together with its subsidiaries, provides aggregates-based construction materials and contracting services in the United States. The company operates through West, Mountain, Central, and Energy Services segments. It mines, processes, and sells construction aggregates, including crushed stone and sand, and gravel; and produces and sells asphalt and ready-mix concrete. The company also provides contracting services, such as heavy-civil construction, asphalt and concrete paving, and site development and grading. In addition, it sells cement, merchandise, and other building materials and related services; and produces and supplies liquid asphalt for use in asphalt road construction. The company sells its construction materials to public and private-sector customers comprising federal, state, and municipal governments; industrial, commercial, and residential developers, as well as other private parties; and provides its contracting services to public-sector customers for the development and servicing of highways, local roads, bridges, and other public-infrastructure projects. Knife River Corporation was founded in 1917 and is headquartered in Bismarck, North Dakota.

Company website: www.kniferiver.com

KNF insider activity at a glance

FilingIQ has scored 71 insider transactions for KNF since May 31, 2023. The most recent filing in our index is dated Mar 31, 2026.

Across the full history, 1 open-market purchases and 0 open-market sales were filed under transaction codes P and S respectively. Compensatory share awards (code A) and option exercises (code M) are tracked separately and not counted here.

The average FilingIQ composite score on KNF insider trades is 53.0/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live KNF trades on FilingIQ Raw filings on SEC EDGAR

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MATERION Corp

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LyondellBasell Industries N.V.

13F funds holding KNF

Voss Capital, LP

$33.82M · 1.7% of AUM

Frequently asked

How many insider trades does FilingIQ track for KNF?: FilingIQ tracks 71 Form 4 insider transactions for KNF (Knife River Corp), covering filings from May 31, 2023 onwards. 8 of those were filed in the last 90 days.
Are KNF insiders net buyers or net sellers?: Across the full Form 4 history for KNF, 1 transactions (1%) were open-market purchases and 0 (0%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does KNF insider data come from?: Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
What sector is KNF in?: Knife River Corp (KNF) is classified in the Basic Materials sector, specifically Building Materials, with a current market capitalisation of $5.09B.

Methodology & sources

Every KNF insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.