MDU Resources Group, Inc.
MX ˙ BMV ˙ US5526901096
SecurityMX:MDU / MDU Resources Group, Inc.
InstitutionGoldman Sachs Group Inc
Latest Disclosed Ownership1,103,332 shares
Latest Disclosed Value $ 22,861,045
Goldman Sachs Group Inc reports 85.92% increase in ownership of MDU / MDU Resources Group, Inc.

On May 15, 2026 - Goldman Sachs Group Inc filed a 13F-HR form disclosing ownership of 1,103,332 shares of MDU Resources Group, Inc. (MX:MDU) valued at $22,861,045 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 593,453 shares of MDU Resources Group, Inc.. This represents a change in shares of 85.92% 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)
2026-05-15 2026-03-31 13F MDU RES GROUP CMN 552690109 1,103,332 509,879 85.92 22,861 97.35 0.0006
2026-02-10 2025-12-31 13F MDU RES GROUP CMN 552690109 593,453 -671,810 -53.10 11,584 -48.59 0.0014
2025-11-14 2025-09-30 13F MDU RES GROUP CMN 552690109 1,265,263 770,395 155.68 22,534 173.17 0.0028
2025-08-14 2025-06-30 13F MDU RES GROUP CMN 552690109 494,868 -7,931 -1.58 8,249 -2.98 0.0011
2025-06-27 2025-03-31 13F/A-2 MDU RES GROUP CMN 552690109 502,799 -455,541 -47.53 8,502 -50.77 0.0014
2025-05-16 2025-03-31 13F/A-1 MDU RES GROUP CMN 552690109 502,799 -455,541 8,502 0.0004
2025-05-09 2025-03-31 13F MDU RES GROUP CMN 552690109 502,799 -455,541 8,502 0.0003
2025-02-11 2024-12-31 13F MDU RES GROUP CMN 552690109 958,340 602,527 169.34 17,269 77.08 0.0027
2024-11-14 2024-09-30 13F MDU RES GROUP CMN 552690109 355,813 -30,936 -8.00 9,753 0.46 0.0016
2024-08-13 2024-06-30 13F MDU RES GROUP CMN 552690109 386,749 143,399 58.93 9,707 58.30 0.0016
2024-05-15 2024-03-31 13F MDU RES GROUP CMN 552690109 243,350 -81,766 -25.15 6,132 -4.74 0.0011
2024-05-14 2023-12-31 13F/A-2 MDU RES GROUP CMN 552690109 325,116 -122,496 -27.37 6,437 -26.55 0.0012
2024-03-01 2023-12-31 13F/A-1 MDU RES GROUP CMN 552690109 325,116 6,437
2024-02-13 2023-12-31 13F MDU RES GROUP CMN 552690109 325,116 -122,496 6,437 0.0002
2024-05-15 2023-09-30 13F/A-1 MDU RES GROUP CMN 552690109 447,612 -173,481 -27.93 8,764 -32.61 0.0019
2023-11-14 2023-09-30 13F MDU RES GROUP CMN 552690109 447,612 -173,481 8,764 0.0018
2024-05-14 2023-06-30 13F/A-1 MDU RES GROUP CMN 552690109 621,093 346,905 126.52 13,006 55.62 0.0028
2023-08-15 2023-06-30 13F MDU RES GROUP CMN 552690109 621,093 346,905 13,006 0.0026
2024-05-14 2023-03-31 13F/A-1 MDU RES GROUP CMN 552690109 274,188 -1,330,930 -82.92 8,357 -82.84 0.0019
2023-05-11 2023-03-31 13F MDU RES GROUP CMN 552690109 274,188 -1,330,930 8,357 0.0018
2024-05-14 2022-12-31 13F/A-1 MDU RES GROUP CMN 552690109 1,605,118 -53,643 -3.23 48,699 108,120.00 0.0119
2023-02-13 2022-12-31 13F MDU RES GROUP CMN 552690109 1,605,118 -53,643 48,699 0.0109
2024-05-14 2022-09-30 13F/A-1 MDU RES GROUP CMN 552690109 1,658,761 815,633 96.74 45 104.55 0.0115
2022-11-14 2022-09-30 13F MDU RES GROUP CMN 552690109 1,658,761 815,633 45,367 0.0105
2024-05-14 2022-06-30 13F/A-2 MDU RES GROUP CMN 552690109 843,128 271,614 47.53 23 -99.86 0.0057
2022-08-18 2022-06-30 13F/A-1 MDU RES GROUP CMN 552690109 843,128 271,614 22,756 0.0051
2022-08-15 2022-06-30 13F MDU RES GROUP CMN 552690109 843,128 271,614 22,756 0.0051
2022-05-16 2022-03-31 13F MDU RES GROUP CMN 552690109 571,514 -471,020 -45.18 15,231 -52.63 0.0032
2022-02-17 2021-12-31 13F/A-1 MDU RES GROUP CMN 552690109 1,042,534 95,834 10.12 32,152 14.46 0.0064
2022-02-14 2021-12-31 13F MDU RES GROUP CMN 552690109 1,042,534 95,834 32,152 0.0018
2022-01-20 2021-09-30 13F/A-1 MDU RES GROUP CMN 552690109 946,700 -1,683,034 -64.00 28,089 -65.92 0.0060
2021-11-10 2021-09-30 13F MDU RES GROUP CMN 552690109 946,700 -1,683,034 28,089 0.0059
2021-08-13 2021-06-30 13F MDU RES GROUP CMN 552690109 2,629,734 257,164 10.84 82,416 9.89 0.0185
2021-05-17 2021-03-31 13F MDU RES GROUP CMN 552690109 2,372,570 872,538 58.17 74,997 89.81 0.0189
2021-02-12 2020-12-31 13F MDU RES GROUP CMN 552690109 1,500,032 -230,930 -13.34 39,511 1.45 0.0102
2020-11-13 2020-09-30 13F MDU RES GROUP CMN 552690109 1,730,962 1,062,178 158.82 38,946 162.55 0.0111
2020-08-12 2020-06-30 13F MDU RES GROUP CMN 552690109 668,784 317,914 90.61 14,834 96.63 0.0045
2020-05-15 2020-03-31 13F MDU RES GROUP CMN 552690109 350,870 -34,792 -9.02 7,544 -34.17 0.0027
2020-02-14 2019-12-31 13F MDU RES GROUP CMN 552690109 385,662 20,615 5.65 11,459 11.36 0.0029
2019-11-14 2019-09-30 13F MDU RES GROUP CMN 552690109 365,047 -714,887 -66.20 10,290 -63.07 0.0030
2019-08-14 2019-06-30 13F MDU RES GROUP CMN 552690109 1,079,934 213,188 24.60 27,862 24.45 0.0080
2019-05-15 2019-03-31 13F MDU RES GROUP CMN 552690109 866,746 11,853 1.39 22,388 9.85 0.0068
2019-02-14 2018-12-31 13F MDU RES GROUP CMN 552690109 854,893 -349,448 -29.02 20,381 -34.13 0.0065
2018-11-14 2018-09-30 13F MDU RES GROUP CMN 552690109 1,204,341 -68,399 -5.37 30,940 -15.24 0.0080
2018-08-14 2018-06-30 13F MDU RES GROUP CMN 552690109 1,272,740 -495,505 -28.02 36,502 -26.69 0.0099
2018-05-15 2018-03-31 13F MDU RES GROUP CMN 552690109 1,768,245 223,017 14.43 49,794 19.88 0.0127
2018-02-14 2017-12-31 13F MDU RES GROUP CMN 552690109 1,545,228 531,704 52.46 41,536 57.93 0.0099
2017-11-14 2017-09-30 13F MDU RES GROUP CMN 552690109 1,013,524 426,617 72.69 26,300 71.03 0.0064
2017-08-14 2017-06-30 13F MDU RES GROUP CMN 552690109 586,907 -395,222 -40.24 15,377 -42.80 0.0040
2017-05-18 2017-03-31 13F/A-1 MDU RES GROUP CMN 552690109 982,129 -860,244 -46.69 26,881 -49.29 0.0073
2017-05-15 2017-03-31 13F MDU RES GROUP CMN 552690109 982,129 26,881
2017-02-14 2016-12-31 13F MDU RES GROUP CMN 552690109 1,842,373 -143,750 -7.24 53,005 4.90 0.0150
2016-11-14 2016-09-30 13F MDU RES GROUP CMN 552690109 1,986,123 350,991 21.47 50,527 28.75 0.0153
2016-08-15 2016-06-30 13F MDU RES GROUP CMN 552690109 1,635,132 -101,910 -5.87 39,243 16.09 0.0128
2016-05-13 2016-03-31 13F MDU RES GROUP CMN 552690109 1,737,042 410,251 30.92 33,803 39.07 0.0111
2016-02-16 2015-12-31 13F MDU RES GROUP CMN 552690109 1,326,791 1,119,042 538.65 24,306 580.27 0.0076
2015-11-13 2015-09-30 13F MDU RES GROUP CMN 552690109 207,749 -127,133 -37.96 3,573 -45.37 0.0012
2015-08-14 2015-06-30 13F MDU RES GROUP CMN 552690109 334,882 -20,764 -5.84 6,540 -13.82 0.0020
2015-05-15 2015-03-31 13F MDU RES GROUP CMN 552690109 355,646 -50,560 -12.45 7,589 -20.49 0.0024
2015-02-13 2014-12-31 13F MDU RES GROUP CMN 552690109 406,206 -269,732 -39.90 9,545 -49.22 0.0030
2014-11-14 2014-09-30 13F MDU RES GROUP CMN 552690109 675,938 61,039 9.93 18,797 -12.91 0.0060
2014-08-14 2014-06-30 13F MDU RES GROUP CMN 552690109 614,899 194,472 46.26 21,583 49.62 0.0068
2014-05-15 2014-03-31 13F MDU RES GROUP CMN 552690109 420,427 23,503 5.92 14,425 18.96 0.0047
2014-02-14 2013-12-31 13F MDU RES GROUP CMN 552690109 396,924 37,958 10.57 12,126 20.78 0.0040
2013-11-14 2013-09-30 13F MDU RES GROUP CMN 552690109 358,966 116,934 48.31 10,040 60.10 0.0037
2013-08-14 2013-06-30 13F MDU RES GROUP CMN 552690109 242,032 3,030 1.27 6,271 23.54 0.0024
2013-06-14 2012-12-31 13F/A-1 MDU RES GROUP CMN 552690109 239,002 -29,568 -11.01 5,076 -14.26 0.0021
2013-06-14 2012-09-30 13F/A-2 MDU RES GROUP CMN 552690109 268,570 -138,467 -34.02 5,920 -32.70 0.0024
2013-06-14 2012-06-30 13F/A-2 MDU RES GROUP CMN 552690109 407,037 78,347 23.84 8,796 19.51 0.0039
2013-06-14 2012-03-31 13F/A-1 MDU RES GROUP CMN 552690109 328,690 328,690 7,360 0.0034
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.