KNF

Knife River Corp

Mining & Quarrying of Nonmetallic Minerals (No Fuels)NYSELarge accelerated filer

Total Trades

1

Buys

1

Sells

0

Largest Trade

<$1K

Insiders

1

Institutional Funds

328

Inst. Value

$1M+

Activist Filings

6

Insider Trades

InsiderTitleTypeValueSharesPriceDate
Gray Brian R.President & CEOBUY<$1K1$73.65Mar 4, 2024
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Activist & 5%+ Owners

SC 13D/13G filings — investors holding 5%+ of outstanding shares

T. Rowe Price Associates, Inc.

SC 13G/A · Nov 14, 2025

6.7%

3.8M shares

T. Rowe Price Associates, Inc.

SC 13G · Aug 14, 2025

5.3%

3.0M shares

The Vanguard Group - 23-1945930

SC 13G/A · Feb 13, 2024

10.7%

6.0M shares

BlackRock, Inc.

SC 13G/A · Jan 23, 2024

11.9%

6.7M shares

The Vanguard Group - 23-1945930

SC 13G · Dec 8, 2023

10.8%

6.1M shares

BlackRock, Inc.

SC 13G · Jul 7, 2023

10.4%

5.9M shares

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