Canonical: https://ownershiptrace.com/13f/companies/3217

# Who owns Knife River Corp (KNF)? Elite investor 13F holders

5 tracked elite investors reported holding Knife River Corp as of 2026-06-30, including Mairs & Power Funds, GAMCO, D.E. Shaw, Gotham Asset Management, Ancora Advisors / Ancora Holdings. Who bought, trimmed or exited each quarter, with links to the original SEC 13F filings.

5 tracked investors currently reported holding · Latest report period: 2026-06-30 · Materials · Materials

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…

## Reported holders and securities, including exits (up to 20)

| Investor | Security | Instrument | Report period | Filed | Value | Quantity | Units | Change | Source |
|  --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [Mairs & Power Funds](https://ownershiptrace.com/13f/investors/54) | KNIFE RIVER CORP | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 10738736.00 USD | 128377.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/1070134/0001172661-26-003496-index.html) |
| [GAMCO](https://ownershiptrace.com/13f/investors/137) | KNIFE RIVER CORP | SHARE | 2026-06-30 | 2026-08-12 00:00:00 | 7971678.00 USD | 95298.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/807249/0001140361-26-032508-index.html) |
| [D.E. Shaw](https://ownershiptrace.com/13f/investors/98) | KNIFE RIVER CORP | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 3203795.00 USD | 38300.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1009207/0001104659-26-097217-index.html) |
| [Gotham Asset Management](https://ownershiptrace.com/13f/investors/94672) | KNIFE RIVER CORP | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 1514902.00 USD | 18110.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/1510387/0001398344-26-014644-index.html) |
| [Renaissance Technologies LLC](https://ownershiptrace.com/13f/investors/63) | KNIFE RIVER CORP | SHARE | 2026-06-30 | 2026-08-13 00:00:00 | 0.00 USD | 0.000000 | Shares | exited | [Original filing](https://www.sec.gov/Archives/edgar/data/1037389/0001037389-26-000059-index.html) |
| [Ancora Advisors / Ancora Holdings](https://ownershiptrace.com/13f/investors/101) | KNIFE RIVER CORP | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 124137.00 USD | 1484.000000 | Shares | hold | [Original filing](https://www.sec.gov/Archives/edgar/data/1446114/0001446114-26-000012-index.html) |

Public disclosures can be delayed, incomplete, or amended. Report period describes a position date; transaction date describes a reported transaction; filed describes submission. A recent filing or page update does not establish a current holding. A dash means unavailable or not comparable, not zero.

This public summary shows the default reporting scope. Enable JavaScript for interactive filters, charts, and additional rows.

[How to read the data](https://ownershiptrace.com/docs#reading-the-data) · [Disclaimer](https://ownershiptrace.com/disclaimer)