Knife River Corporation
Knife River Corporation (KNF) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · KNF · as of Sep 30, 2025
Ownership Breakdown
400
Institutional Holders
▼ 18 vs Q2
$3.97B
Total Inst. Value
▼ $354.32M vs Q2
56.75M
Shares Outstanding
freeFloat 99.48%
51.62M
13F Shares Held
▼ 1.34M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
KNF largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. mining & quarrying of nonmetallic minerals (no fuels) | 6.92M | 12.23% | 12.23% | $532.09B | Nov 12, 2025 | ▼ 46.2K |
VANGUARD GROUP INC mining & quarrying of nonmetallic minerals (no fuels) | 5.75M | 10.17% | 10.17% | $442.34B | Nov 7, 2025 | ▼ 82.7K |
PRICE T ROWE ASSOCIATES INC /MD/ mining & quarrying of nonmetallic minerals (no fuels) | 3.79M | 6.70% | 6.70% | $291.46B | Nov 14, 2025 | ▲ 807.7K |
BAILLIE GIFFORD & CO mining & quarrying of nonmetallic minerals (no fuels) | 2.20M | 3.88% | 3.88% | $169.02B | Oct 31, 2025 | NEW |
STATE STREET CORP mining & quarrying of nonmetallic minerals (no fuels) | 2.04M | 3.60% | 3.60% | $156.79B | Nov 14, 2025 | ▼ 61.5K |
CAPITAL RESEARCH GLOBAL INVESTORS mining & quarrying of nonmetallic minerals (no fuels) | 1.86M | 3.29% | 3.29% | $143.19B | Nov 13, 2025 | ▼ 40.0K |
GEODE CAPITAL MANAGEMENT, LLC mining & quarrying of nonmetallic minerals (no fuels) | 1.41M | 2.49% | 2.49% | $108.27B | Nov 12, 2025 | ▲ 12.6K |
DIMENSIONAL FUND ADVISORS LP mining & quarrying of nonmetallic minerals (no fuels) | 1.25M | 2.20% | 2.20% | $95.88B | Nov 12, 2025 | ▲ 31.6K |
FMR LLC mining & quarrying of nonmetallic minerals (no fuels) | 1.21M | 2.14% | 2.14% | $93.15B | Nov 13, 2025 | ▲ 249.2K |
MORGAN STANLEY mining & quarrying of nonmetallic minerals (no fuels) | 1.21M | 2.14% | 2.14% | $93.00B | May 27, 2026 | ▲ 345.0K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
21
Increased
+2.68M shares3
New Positions
first time holders26
Decreased
−3.13M shares0
Sold Out
fully exitedNet shares change (top 50)
453.0K
+2.68M / −3.13M
Net new holders
-2
3 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
KNF insider trading · insider activity
Source: SEC Form 4
6
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
SANDBROOK WILLIAM J director | May 20, 2026 | Award | 2,040 | — | — | 7.7K | Form 4 ↗ |
MOSS PATRICIA L director | May 20, 2026 | Award | 2,040 | — | — | 31.9K | Form 4 ↗ |
Hill Thomas W. director | May 20, 2026 | Award | 2,040 | — | — | 5.5K | Form 4 ↗ |
Fagg Karen B director | May 20, 2026 | Award | 2,380 | — | — | 33.3K | Form 4 ↗ |
Chiodo Patricia director | May 20, 2026 | Award | 2,040 | — | — | 5.6K | Form 4 ↗ |
Carmona-Alvarez German director | May 20, 2026 | Award | 2,040 | — | — | 9.0K | Form 4 ↗ |
Fagg Karen B director | Mar 31, 2026 | Award | 221.676 | — | — | 1.1K | Form 4 ↗ |
Gray Brian R. President & CEO | Mar 6, 2026 | Award | 20,955 | — | — | 84.7K | Form 4 ↗ |
Kadrmas Marney L. VP & Chief Accounting Officer | Mar 4, 2026 | Award | 1,199 | — | — | 4.9K | Form 4 ↗ |
Pladsen Glenn R. VP & Chief Excellence Officer | Mar 4, 2026 | Award | 2,950 | — | — | 22.1K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Knife River Corporation (KNF) is primarily owned by institutional investors, who hold approximately 91.0% of total shares outstanding. Company insiders own approximately 0.52%, while retail and public investors account for the remaining 8.53%.
The largest institutional shareholder of Knife River Corporation is BLACKROCK, INC., holding approximately 6.92 million shares — equal to 12.23% of outstanding shares — as of September 30, 2025.
A total of 400 institutional investors currently hold KNF stock, with a combined institutional value of approximately $3.97 billion as of the most recent 13F filing period.
Frequently asked questions
KNF ownershipKnife River Corporation (KNF) is primarily owned by institutional investors, who hold approximately 91.0% of shares. The largest shareholder is BLACKROCK, INC. with a 12.23% stake. Company insiders hold 0.52%. Data sourced from SEC Form 13F as of September 30, 2025.