MDU Resources Group, Inc.
MX ˙ BMV ˙ US5526901096
SecurityMX:MDU / MDU Resources Group, Inc.
InstitutionGeode Capital Management, Llc
Latest Disclosed Ownership3,491,440 shares
Latest Disclosed Value $ 72,369,288
Geode Capital Management, Llc reports 2.23% increase in ownership of MDU / MDU Resources Group, Inc.

On May 15, 2026 - Geode Capital Management, Llc filed a 13F-HR form disclosing ownership of 3,491,440 shares of MDU Resources Group, Inc. (MX:MDU) valued at $72,369,288 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 3,415,233 shares of MDU Resources Group, Inc.. This represents a change in shares of 2.23% 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 RESOURCES GROUP COM 552690109 3,491,440 76,207 2.23 72,369 8.52 0.0024
2026-02-09 2025-12-31 13F MDU RESOURCES GROUP COM 552690109 3,415,233 21,460 0.63 66,687 10.30 0.0041
2025-11-12 2025-09-30 13F MDU RESOURCES GROUP COM 552690109 3,393,773 -33,256 -0.97 60,461 5.80 0.0039
2025-08-08 2025-06-30 13F MDU RESOURCES GROUP COM 552690109 3,427,029 8,754 0.26 57,144 -1.17 0.0040
2025-05-13 2025-03-31 13F MDU RESOURCES GROUP COM 552690109 3,418,275 -95,519 -2.72 57,822 -8.71 0.0045
2025-02-12 2024-12-31 13F MDU RESOURCES GROUP COM 552690109 3,513,794 -205,749 -5.53 63,338 -37.89 0.0049
2024-11-12 2024-09-30 13F MDU RESOURCES GROUP COM 552690109 3,719,543 65,433 1.79 101,978 11.16 0.0083
2024-08-09 2024-06-30 13F MDU RESOURCES GROUP COM 552690109 3,654,110 108,876 3.07 91,741 2.67 0.0081
2024-05-13 2024-03-31 13F MDU RESOURCES GROUP COM 552690109 3,545,234 178,727 5.31 89,356 34.04 0.0083
2024-02-13 2023-12-31 13F MDU RESOURCES GROUP COM 552690109 3,366,507 90,145 2.75 66,667 3.90 0.0070
2023-11-13 2023-09-30 13F MDU RESOURCES GROUP COM 552690109 3,276,362 84,945 2.66 64,162 -3.99 0.0076
2023-08-11 2023-06-30 13F MDU RESOURCES GROUP COM 552690109 3,191,417 142,844 4.69 66,828 -28.08 0.0079
2023-05-15 2023-03-31 13F MDU RESOURCES GROUP COM 552690109 3,048,573 78,311 2.64 92,921 103,144.44 0.0121
2023-02-13 2022-12-31 13F MDU RESOURCES GROUP COM 552690109 2,970,262 132,212 4.66 90 -99.88 0.0126
2022-11-14 2022-09-30 13F MDU RESOURCES GROUP COM 552690109 2,838,050 3,070 0.11 77,620 1.44 0.0118
2022-08-12 2022-06-30 13F MDU RESOURCES GROUP COM 552690109 2,834,980 203,196 7.72 76,516 9.10 0.0112
2022-05-13 2022-03-31 13F MDU RESOURCES GROUP COM 552690109 2,631,784 -762,388 -22.46 70,137 -33.00 0.0088
2022-02-11 2021-12-31 13F MDU RESOURCES GROUP COM 552690109 3,394,172 113,197 3.45 104,676 7.53 0.0126
2021-11-12 2021-09-30 13F MDU RESOURCES GROUP COM 552690109 3,280,975 -72,741 -2.17 97,346 -7.38 0.0131
2021-08-13 2021-06-30 13F MDU RESOURCES GROUP COM 552690109 3,353,716 195,154 6.18 105,105 5.27 0.0145
2021-05-12 2021-03-31 13F MDU RESOURCES GROUP COM 552690109 3,158,562 112,516 3.69 99,842 24.44 0.0153
2021-02-12 2020-12-31 13F MDU RESOURCES GROUP COM 552690109 3,046,046 214,780 7.59 80,232 25.95 0.0135
2020-11-13 2020-09-30 13F MDU RESOURCES GROUP COM 552690109 2,831,266 -91,525 -3.13 63,703 -1.73 0.0125
2020-08-13 2020-06-30 13F MDU RESOURCES GROUP COM 552690109 2,922,791 7,026 0.24 64,827 3.41 0.0139
2020-05-14 2020-03-31 13F MDU RESOURCES GROUP COM 552690109 2,915,765 137,137 4.94 62,688 -24.06 0.0163
2020-02-20 2019-12-31 13F/A-1 MDU RESOURCES GROUP COM 552690109 2,778,628 -134,152 -4.61 82,553 0.54 0.0173
2020-02-13 2019-12-31 13F MDU RESOURCES GROUP COM 552690109 2,778,628 -134,152 82,553 10,520.6560
2019-11-12 2019-09-30 13F MDU RESOURCES GROUP COM 552690109 2,912,780 -116,613 -3.85 82,111 5.06 0.0192
2019-08-14 2019-06-30 13F MDU RESOURCES GROUP COM 552690109 3,029,393 -23,111 -0.76 78,158 -0.87 0.0189
2019-05-14 2019-03-31 13F MDU RESOURCES GROUP COM 552690109 3,052,504 94,834 3.21 78,846 11.82 0.0204
2019-03-06 2018-12-31 13F/A-1 MDU RESOURCES GROUP COM 552690109 2,957,670 393,966 15.37 70,510 7.06 0.0218
2019-02-13 2018-12-31 13F MDU RESOURCES GROUP COM 552690109 2,957,670 393,966 70,510
2018-11-13 2018-09-30 13F MDU RESOURCES GROUP COM 552690109 2,563,704 490,914 23.68 65,861 10.79 0.0186
2018-08-14 2018-06-30 13F MDU RESOURCES GROUP COM 552690109 2,072,790 71,148 3.55 59,447 5.47 0.0183
2018-05-15 2018-03-31 13F MDU RESOURCES GROUP COM 552690109 2,001,642 72,439 3.75 56,366 8.70 0.0184
2018-02-13 2017-12-31 13F MDU RESOURCES GROUP COM 552690109 1,929,203 37,690 1.99 51,856 5.65 0.0176
2017-11-14 2017-09-30 13F MDU RESOURCES GROUP COM 552690109 1,891,513 67,418 3.70 49,084 2.71 0.0181
2017-08-14 2017-06-30 13F MDU RESOURCES GROUP COM 552690109 1,824,095 76,523 4.38 47,791 -0.08 0.0188
2017-06-21 2017-03-31 13F/A-1 MDU RES GROUP INC COM COM 552690109 1,747,572 198,452 12.81 47,830 7.32 0.0196
2017-05-12 2017-03-31 13F MDU RES GROUP INC COM COM 552690109 1,747,572 47,830
2017-02-14 2016-12-31 13F MDU RES GROUP INC COM COM 552690109 1,549,120 154,793 11.10 44,568 25.65 0.0207
2016-11-10 2016-09-30 13F MDU RES GROUP INC COM COM 552690109 1,394,327 27,099 1.98 35,471 8.10 0.0179
2016-08-12 2016-06-30 13F MDU RES GROUP INC COM COM 552690109 1,367,228 166,622 13.88 32,813 40.45 0.0178
2016-05-13 2016-03-31 13F MDU RES GROUP INC COM COM 552690109 1,200,606 16,922 1.43 23,363 7.74 0.0124
2016-02-12 2015-12-31 13F MDU RES GROUP INC COM COM 552690109 1,183,684 24,840 2.14 21,685 8.87 0.0124
2015-11-13 2015-09-30 13F MDU RES GROUP INC COM COM 552690109 1,158,844 27,693 2.45 19,918 -9.79 0.0121
2015-08-14 2015-06-30 13F MDU RES GROUP INC COM COM 552690109 1,131,151 41,501 3.81 22,080 -4.99 0.0126
2015-05-14 2015-03-31 13F MDU RES GROUP INC COM COM 552690109 1,089,650 78,920 7.81 23,240 -2.10 0.0133
2015-02-12 2014-12-31 13F MDU RES GROUP INC COM COM 552690109 1,010,730 10,243 1.02 23,738 -14.66 0.0141
2014-11-14 2014-09-30 13F MDU RES GROUP INC COM COM 552690109 1,000,487 2,404 0.24 27,816 -20.58 0.0180
2014-08-13 2014-06-30 13F MDU RES GROUP INC COM COM 552690109 998,083 14,104 1.43 35,025 3.76 0.0226
2014-05-14 2014-03-31 13F MDU RES GROUP INC COM COM 552690109 983,979 64,779 7.05 33,755 20.22 0.0226
2014-02-14 2013-12-31 13F MDU RES GROUP INC COM COM 552690109 919,200 122,164 15.33 28,077 25.96 0.0195
2013-11-14 2013-09-30 13F MDU RES GROUP INC COM COM 552690109 797,036 44,483 5.91 22,291 14.33 0.0179
2013-08-14 2013-06-30 13F MDU RES GROUP INC COM COM 552690109 752,553 752,553 19,497 0.0171
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.