MDU Resources Group, Inc.
MX ˙ BMV ˙ US5526901096
SecurityMX:MDU / MDU Resources Group, Inc.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership99,393 shares
Latest Disclosed Value $ 2,059,423
Trexquant Investment LP ownership in MDU / MDU Resources Group, Inc.

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 99,393 shares of MDU Resources Group, Inc. (MX:MDU) valued at $2,059,423 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 12, 2025 disclosing 0 shares of MDU Resources Group, Inc..

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 MDU RES GROUP COM 552690109 99,393 99,393 2,059 0.0148
2025-08-12 2025-06-30 13F MDU RES GROUP COM 552690109 0 -290,455 -100.00 0 -100.00
2025-05-14 2025-03-31 13F MDU RES GROUP COM 552690109 290,455 46,612 19.12 4,912 11.77 0.0571
2025-02-12 2024-12-31 13F MDU RES GROUP COM 552690109 243,843 217,026 809.29 4,394 497.82 0.0512
2024-11-12 2024-09-30 13F MDU RES GROUP COM 552690109 26,817 26,817 735 0.0093
2024-08-13 2024-06-30 13F MDU RES GROUP COM 552690109 0 -183,198 -100.00 0 -100.00
2024-05-14 2024-03-31 13F MDU RES GROUP COM 552690109 183,198 183,198 4,617 0.0920
2023-11-13 2023-09-30 13F MDU RES GROUP COM 552690109 0 -40,366 -100.00 0 -100.00
2023-08-11 2023-06-30 13F MDU RES GROUP COM 552690109 40,366 -59,349 -59.52 845 -72.19 0.0222
2023-05-15 2023-03-31 13F MDU RES GROUP COM 552690109 99,715 16,927 20.45 3,039 21.03 0.0835
2023-02-13 2022-12-31 13F MDU RES GROUP COM 552690109 82,788 82,788 2,512 0.0712
2022-11-14 2022-09-30 13F MDU RES GROUP COM 552690109 0 -20,856 -100.00 0 -100.00
2022-08-11 2022-06-30 13F MDU RES GROUP COM 552690109 20,856 -40,359 -65.93 563 -65.48 0.0252
2022-05-13 2022-03-31 13F MDU RES GROUP COM 552690109 61,215 61,215 1,631 0.0766
2021-11-12 2021-09-30 13F MDU RES GROUP COM 552690109 0 -23,215 -100.00 0 -100.00
2021-08-12 2021-06-30 13F MDU RES GROUP COM 552690109 23,215 -4,655 -16.70 728 -17.37 0.0614
2021-05-13 2021-03-31 13F MDU RES GROUP COM 552690109 27,870 7,556 37.20 881 64.67 0.0808
2021-02-11 2020-12-31 13F MDU RES GROUP COM 552690109 20,314 -61,735 -75.24 535 -71.02 0.0567
2020-11-06 2020-09-30 13F MDU RES GROUP COM 552690109 82,049 27,683 50.92 1,846 53.07 0.1188
2020-08-07 2020-06-30 13F MDU RES GROUP COM 552690109 54,366 26,414 94.50 1,206 100.67 0.0837
2020-05-08 2020-03-31 13F MDU RES GROUP COM 552690109 27,952 20,415 270.86 601 168.30 0.0436
2020-02-12 2019-12-31 13F MDU RES GROUP COM 552690109 7,537 7,537 224 0.0133
2020-02-14 2019-09-30 13F/A-1 MDU RES GROUP COM 552690109 0 -19,825 -100.00 0 -100.00
2019-08-09 2019-06-30 13F MDU RES GROUP COM 552690109 19,825 19,825 511 0.0460
2019-05-13 2019-03-31 13F MDU RES GROUP COM 552690109 0 -61,854 -100.00 0 -100.00
2019-02-13 2018-12-31 13F MDU RES GROUP COM 552690109 61,854 27,037 77.65 1,475 64.99 0.0922
2018-11-09 2018-09-30 13F MDU RES GROUP COM 552690109 34,817 34,817 894 0.0672
2018-05-03 2018-03-31 13F MDU RES GROUP COM 552690109 0 -41,791 -100.00 0 -100.00
2018-02-08 2017-12-31 13F MDU RES GROUP COM 552690109 41,791 41,791 1,123 0.1233
2017-11-09 2017-09-30 13F MDU RES GROUP COM 552690109 0 -8,000 -100.00 0 -100.00
2017-08-01 2017-06-30 13F MDU RES GROUP COM 552690109 8,000 8,000 210 0.0575
2017-05-08 2017-03-31 13F MDU RES GROUP COM 552690109 0 -27,106 -100.00 0 -100.00
2017-02-10 2016-12-31 13F MDU RES GROUP COM 552690109 27,106 27,106 780 0.1234
2016-11-10 2016-09-30 13F MDU RES GROUP COM 552690109 0 -42,825 -100.00 0 -100.00
2016-08-10 2016-06-30 13F MDU RES GROUP COM 552690109 42,825 -11,475 -21.13 1,028 -2.74 0.1351
2016-05-11 2016-03-31 13F MDU RES GROUP COM 552690109 54,300 54,300 1,057 0.1238
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.