MDU Resources Group, Inc.
MX ˙ BMV ˙ US5526901096
SecurityMX:MDU / MDU Resources Group, Inc.
InstitutionLegal & General Group Plc
Latest Disclosed Ownership815,281 shares
Latest Disclosed Value $ 16,892,622
Legal & General Group Plc reports 6.78% decrease in ownership of MDU / MDU Resources Group, Inc.

On May 8, 2026 - Legal & General Group Plc filed a 13F-HR form disclosing ownership of 815,281 shares of MDU Resources Group, Inc. (MX:MDU) valued at $16,892,622 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 874,579 shares of MDU Resources Group, Inc.. This represents a change in shares of -6.78% during the quarter.

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)
2026-05-08 2026-03-31 13F MDU RES GROUP COM 552690109 815,281 -59,298 -6.78 16,893 -1.05 0.0039
2026-02-09 2025-12-31 13F MDU RES GROUP COM 552690109 874,579 -96,633 -9.95 17,072 -1.31 0.0038
2025-11-13 2025-09-30 13F MDU RES GROUP COM 552690109 971,212 282,913 41.10 17,297 50.76 0.0039
2025-08-12 2025-06-30 13F MDU RES GROUP COM 552690109 688,299 -2,373 -0.34 11,474 -1.76 0.0028
2025-05-15 2025-03-31 13F MDU RES GROUP COM 552690109 690,672 -2,107 -0.30 11,679 -6.44 0.0032
2025-02-13 2024-12-31 13F MDU RES GROUP COM 552690109 692,779 265,024 61.96 12,484 6.47 0.0033
2025-02-28 2024-09-30 13F/A-2 MDU RES GROUP COM 552690109 427,755 7,461 1.78 11,725 11.14 0.0031
2024-11-14 2024-09-30 13F/A-1 MDU RES GROUP COM 552690109 449,572 11,280 12,323 0.0026
2024-11-14 2024-09-30 13F MDU RES GROUP COM 552690109 449,572 11,280 12,323 0.0013
2025-05-29 2024-06-30 13F/A-1 MDU RES GROUP COM 552690109 420,294 -61,535 -12.77 10,549 -13.12 0.0030
2024-08-14 2024-06-30 13F MDU RES GROUP COM 552690109 438,292 -43,537 11,001 0.0025
2025-05-29 2024-03-31 13F/A-2 MDU RES GROUP COM 552690109 481,829 -14,236 -2.87 12,142 23.62 0.0035
2024-07-01 2024-03-31 13F/A-1 MDU RES GROUP COM 552690109 481,829 -14,236 12,142 0.0028
2024-05-14 2024-03-31 13F MDU RES GROUP COM 552690109 481,000 -15,065 12,121 0.0015
2025-05-29 2023-12-31 13F/A-1 MDU RES GROUP COM 552690109 496,065 -7,378 -1.47 9,822 -0.36 0.0031
2024-02-15 2023-12-31 13F MDU RES GROUP COM 552690109 496,065 -7,378 9,822 0.0025
2023-11-14 2023-09-30 13F MDU RES GROUP COM 552690109 503,443 -6,142 -1.21 9,857 -7.62 0.0034
2023-08-14 2023-06-30 13F MDU RES GROUP COM 552690109 509,585 32,576 6.83 10,671 -26.61 0.0035
2023-05-15 2023-03-31 13F MDU RES GROUP COM 552690109 477,009 3,880 0.82 14,539 1.29 0.0052
2023-02-14 2022-12-31 13F MDU RES GROUP COM 552690109 473,129 35,014 7.99 14,355 19.79 0.0055
2022-11-14 2022-09-30 13F MDU RES GROUP COM 552690109 438,115 -1,512 -0.34 11,983 0.99 0.0047
2022-08-22 2022-06-30 13F MDU RES GROUP COM 552690109 439,627 6,998 1.62 11,866 2.92 0.0042
2022-05-16 2022-03-31 13F MDU RES GROUP COM 552690109 432,629 7,982 1.88 11,529 -11.97 0.0035
2022-02-14 2021-12-31 13F MDU RES GROUP COM 552690109 424,647 2,222 0.53 13,096 4.49 0.0040
2021-11-15 2021-09-30 13F MDU RES GROUP COM 552690109 422,425 -6,419 -1.50 12,533 -6.75 0.0041
2021-08-12 2021-06-30 13F MDU RES GROUP COM 552690109 428,844 -57,271 -11.78 13,440 -12.53 0.0045
2021-05-17 2021-03-31 13F MDU RES GROUP COM 552690109 486,115 15,469 3.29 15,366 23.95 0.0057
2021-02-12 2020-12-31 13F MDU RES GROUP COM 552690109 470,646 -30,041 -6.00 12,397 10.05 0.0049
2020-11-13 2020-09-30 13F MDU RES GROUP COM 552690109 500,687 -532,724 -51.55 11,265 -50.85 0.0050
2020-08-14 2020-06-30 13F MDU RES GROUP COM 552690109 1,033,411 -34,526 -3.23 22,921 -0.17 0.0111
2020-05-14 2020-03-31 13F MDU RES GROUP COM 552690109 1,067,937 -9,106 -0.85 22,960 -28.25 0.0134
2020-02-13 2019-12-31 13F MDU RES GROUP COM 552690109 1,077,043 -17,397 -1.59 31,999 13.33 0.0152
2019-08-14 2019-06-30 13F MDU RES GROUP COM 552690109 1,094,440 180,781 19.79 28,236 19.64 0.0152
2019-05-15 2019-03-31 13F MDU RES GROUP COM 552690109 913,659 -95,176 -9.43 23,600 -1.88 0.0135
2019-02-15 2018-12-31 13F MDU RES GROUP COM 552690109 1,008,835 38,576 3.98 24,051 -3.51 0.0186
2018-11-20 2018-09-30 13F MDU RES GROUP COM 552690109 970,259 25,978 2.75 24,926 -7.96 0.0178
2018-08-10 2018-06-30 13F MDU RES GROUP COM 552690109 944,281 772 0.08 27,082 1.93 0.0209
2018-05-17 2018-03-31 13F MDU RES GROUP COM 552690109 943,509 22,283 2.42 26,569 7.30 0.0203
2018-02-13 2017-12-31 13F MDU RES GROUP COM 552690109 921,226 18,970 2.10 24,761 5.75 0.0179
2017-11-09 2017-09-30 13F MDU RES GROUP COM 552690109 902,256 15,495 1.75 23,415 0.77 0.0176
2017-08-03 2017-06-30 13F MDU RES GROUP COM 552690109 886,761 12,037 1.38 23,236 -2.94 0.0188
2017-05-12 2017-03-31 13F MDU RES GROUP COM 552690109 874,724 48,185 5.83 23,941 0.66 0.0203
2017-02-13 2016-12-31 13F MDU RES GROUP COM 552690109 826,539 11,888 1.46 23,783 14.76 0.0222
2016-10-12 2016-09-30 13F MDU RES GROUP COM 552690109 814,651 11,067 1.38 20,725 7.51 0.0210
2016-08-16 2016-06-30 13F MDU RES GROUP COM 552690109 803,584 4,694 0.59 19,278 24.01 0.0203
2016-05-16 2016-03-31 13F MDU RES GROUP COM 552690109 798,890 6,863 0.87 15,546 7.13 0.0172
2016-02-16 2015-12-31 13F MDU RES GROUP COM 552690109 792,027 -68,258 -7.93 14,512 -1.91 0.0164
2015-11-13 2015-09-30 13F MDU RES GROUP COM 552690109 860,285 9,123 1.07 14,794 -11.00 0.0180
2015-07-31 2015-06-30 13F MDU RES GROUP COM 552690109 851,162 27,873 3.39 16,623 -5.40 0.0195
2015-05-14 2015-03-31 13F MDU RES GROUP COM 552690109 823,289 13,554 1.67 17,571 -7.68 0.0210
2015-02-20 2014-12-31 13F/A-1 MDU RES GROUP COM 552690109 809,735 -18,620 -2.25 19,033 -17.38 0.0224
2015-02-17 2014-12-31 13F MDU RES GROUP COM 552690109 809,735 -18,620 19,033 0.0234
2014-11-14 2014-09-30 13F MDU RES GROUP COM 552690109 828,355 11,953 1.46 23,037 -19.61 0.0276
2014-08-13 2014-06-30 13F MDU RES GROUP COM 552690109 816,402 21,493 2.70 28,656 5.07 0.0334
2014-05-14 2014-03-31 13F MDU RES GROUP COM 552690109 794,909 5,531 0.70 27,273 13.10 0.0331
2014-02-07 2013-12-31 13F MDU RES GROUP COM 552690109 789,378 15,647 2.02 24,115 11.43 0.0292
2013-11-12 2013-09-30 13F MDU RES GROUP COM 552690109 773,731 20,116 2.67 21,641 10.83 0.0285
2013-08-01 2013-06-30 13F MDU RES GROUP COM 552690109 753,615 753,615 19,526 0.0270
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.