Knife River Corporation
US ˙ NYSE ˙ US4988941047

SecurityKNF / Knife River Corporation
InstitutionQuantinno Capital Management LP
Latest Disclosed Ownership15,337 shares
Latest Disclosed Value $ 1,252,266
Quantinno Capital Management LP reports 10.68% increase in ownership of KNF / Knife River Corporation

On May 15, 2026 - Quantinno Capital Management LP filed a 13F-HR form disclosing ownership of 15,337 shares of Knife River Corporation (US:KNF) valued at $1,252,266 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 13,857 shares of Knife River Corporation. This represents a change in shares of 10.68% during the quarter. The current value of the position is $1,175,274 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F KNIFE RIVER COMMON STOCK 498894104 15,337 1,480 10.68 1,252 28.54 0.0021
2026-02-17 2025-12-31 13F KNIFE RIVER COMMON STOCK 498894104 13,857 4,747 52.11 975 39.14 0.0020
2025-11-14 2025-09-30 13F KNIFE RIVER COMMON STOCK 498894104 9,110 1,756 23.88 700 16.67 0.0019
2025-08-14 2025-06-30 13F KNIFE RIVER COMMON STOCK 498894104 7,354 -614 -7.71 600 -16.43 0.0026
2025-05-12 2025-03-31 13F KNIFE RIVER COMMON STOCK 498894104 7,968 1,900 31.31 719 16.56 0.0047
2025-02-14 2024-12-31 13F KNIFE RIVER COMMON STOCK 498894104 6,068 391 6.89 617 21.50 0.0061
2024-11-14 2024-09-30 13F KNIFE RIVER COMMON STOCK 498894104 5,677 475 9.13 507 39.29 0.0066
2024-08-14 2024-06-30 13F KNIFE RIVER COMMON STOCK 498894104 5,202 -66 -1.25 365 -14.75 0.0066
2024-05-14 2024-03-31 13F KNIFE RIVER COMMON STOCK 498894104 5,268 196 3.86 427 27.08 0.0093
2024-02-14 2023-12-31 13F KNIFE RIVER COMMON STOCK 498894104 5,072 77 1.54 336 37.70 0.0118
2023-11-14 2023-09-30 13F KNIFE RIVER COMMON STOCK 498894104 4,995 69 1.40 244 14.02 0.0111
2023-08-04 2023-06-30 13F KNIFE RIVER COMMON STOCK 498894104 4,926 4,926 214 0.0122
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.