MDU Resources Group, Inc.
MX ˙ BMV ˙ US5526901096
SecurityMX:MDU / MDU Resources Group, Inc.
InstitutionAmeriprise Financial Inc
Latest Disclosed Ownership375,736 shares
Latest Disclosed Value $ 7,787,276
Ameriprise Financial Inc reports 15.18% decrease in ownership of MDU / MDU Resources Group, Inc.

On May 15, 2026 - Ameriprise Financial Inc filed a 13F-HR form disclosing ownership of 375,736 shares of MDU Resources Group, Inc. (MX:MDU) valued at $7,787,276 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 442,960 shares of MDU Resources Group, Inc.. This represents a change in shares of -15.18% 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 375,736 -67,224 -15.18 7,787 -9.96 0.0003
2026-02-17 2025-12-31 13F MDU RESOURCES GROUP COM 552690109 442,960 -106,812 -19.43 8,649 -11.69 0.0004
2025-11-14 2025-09-30 13F MDU RESOURCES GROUP COM 552690109 549,772 -58,531 -9.62 9,793 -3.44 0.0022
2025-08-14 2025-06-30 13F MDU RESOURCES GROUP COM 552690109 608,303 -24,970 -3.94 10,143 -5.31 0.0025
2025-05-14 2025-03-31 13F MDU RESOURCES GROUP COM 552690109 633,273 125,480 24.71 10,711 17.03 0.0029
2025-02-14 2024-12-31 13F MDU RESOURCES GROUP COM 552690109 507,793 290,756 133.97 9,152 53.82 0.0023
2024-11-14 2024-09-30 13F MDU RESOURCES GROUP COM 552690109 217,037 -20,014 -8.44 5,951 -0.02 0.0015
2024-08-14 2024-06-30 13F MDU RESOURCES GROUP COM 552690109 237,051 -5,762 -2.37 5,952 -2.76 0.0016
2024-05-15 2024-03-31 13F MDU RESOURCES GROUP COM 552690109 242,813 -7,272 -2.91 6,121 23.56 0.0017
2024-02-14 2023-12-31 13F MDU RESOURCES GROUP COM 552690109 250,085 -27,449 -9.89 4,954 -8.92 0.0015
2023-11-14 2023-09-30 13F MDU RESOURCES GROUP COM 552690109 277,534 17,338 6.66 5,439 -0.28 0.0018
2023-08-14 2023-06-30 13F MDU RESOURCES GROUP COM 552690109 260,196 -466,686 -64.20 5,453 -75.42 0.0017
2023-05-22 2023-03-31 13F/A-1 MDU RESOURCES GROUP COM 552690109 726,882 -26,014 -3.46 22,182 -2.92 0.0073
2023-05-15 2023-03-31 13F MDC HOLDINGS COM 552690109 726,882 -26,014 22,182 0.0013
2023-02-14 2022-12-31 13F MDU RESOURCES GROUP COM 552690109 752,896 -20,431 -2.64 22,849 8.01 0.0078
2022-11-14 2022-09-30 13F MDU RESOURCES GROUP COM 552690109 773,327 -27,515 -3.44 21,155 -2.15 0.0078
2022-08-15 2022-06-30 13F MDU RESOURCES GROUP COM 552690109 800,842 -604,224 -43.00 21,619 -42.27 0.0075
2022-05-16 2022-03-31 13F MDU RESOURCES GROUP COM 552690109 1,405,066 430,724 44.21 37,451 24.61 0.0111
2022-02-14 2021-12-31 13F MDU RESOURCES GROUP COM 552690109 974,342 609,663 167.18 30,054 177.66 0.0083
2021-11-15 2021-09-30 13F MDU RESOURCES GROUP COM 552690109 364,679 -67,729 -15.66 10,824 -20.15 0.0035
2021-08-16 2021-06-30 13F MDU RESOURCES GROUP COM 552690109 432,408 9,367 2.21 13,556 1.37 0.0042
2021-05-17 2021-03-31 13F MDU RESOURCES GROUP COM 552690109 423,041 408 0.10 13,373 20.12 0.0044
2021-02-12 2020-12-31 13F MDU RESOURCES GROUP COM 552690109 422,633 -32,382 -7.12 11,133 8.72 0.0039
2020-11-16 2020-09-30 13F MDU RESOURCES GROUP COM 552690109 455,015 -32,917 -6.75 10,240 -5.36 0.0042
2020-08-14 2020-06-30 13F MDU RESOURCES GROUP COM 552690109 487,932 25,101 5.42 10,820 8.71 0.0046
2020-05-15 2020-03-31 13F MDU RESOURCES GROUP COM 552690109 462,831 -30,332 -6.15 9,953 -32.08 0.0052
2020-02-14 2019-12-31 13F MDU RESOURCES GROUP COM 552690109 493,163 3,789 0.77 14,653 6.20 0.0061
2019-11-14 2019-09-30 13F MDU RESOURCES GROUP COM 552690109 489,374 -21,501 -4.21 13,797 4.67 0.0062
2019-08-14 2019-06-30 13F MDU RESOURCES GROUP COM 552690109 510,875 -18,589 -3.51 13,182 -3.63 0.0059
2019-05-15 2019-03-31 13F MDU RESOURCES GROUP COM 552690109 529,464 -40,400 -7.09 13,678 0.68 0.0063
2019-02-14 2018-12-31 13F MDU RESOURCES GROUP COM 552690109 569,864 -23,016 -3.88 13,586 -58.43 0.0068
2018-11-14 2018-09-30 13F MDU RESOURCES GROUP COM 552690109 592,880 -4,974 -0.83 32,685 90.61 0.0114
2018-08-14 2018-06-30 13F MDU RESOURCES GROUP COM 552690109 597,854 39,406 7.06 17,148 9.04 0.0076
2018-05-14 2018-03-31 13F MDU RESOURCES GROUP COM 552690109 558,448 -3,306 -0.59 15,727 4.15 0.0071
2018-02-12 2017-12-31 13F MDU RESOURCES GROUP COM 552690109 561,754 -30,194 -5.10 15,101 -1.70 0.0069
2017-11-07 2017-09-30 13F MDU RESOURCES GROUP COM 552690109 591,948 7,139 1.22 15,362 0.25 0.0073
2017-08-10 2017-06-30 13F MDU RESOURCES GROUP COM 552690109 584,809 34,571 6.28 15,324 3.10 0.0077
2017-05-05 2017-03-31 13F MDU RESOURCES GROUP COM 552690109 550,238 31,148 6.00 14,863 -0.48 0.0077
2017-02-03 2016-12-31 13F MDU RESOURCES GROUP COM 552690109 519,090 11,820 2.33 14,934 15.74 0.0082
2016-11-08 2016-09-30 13F MDU RESOURCES GROUP COM 552690109 507,270 4,987 0.99 12,903 5.18 0.0072
2016-08-08 2016-06-30 13F MDU RESOURCES GROUP COM 552690109 502,283 6,133 1.24 12,268 27.04 0.0072
2016-05-12 2016-03-31 13F MDU RESOURCES GROUP COM 552690109 496,150 -5,580 -1.11 9,657 5.01 0.0058
2016-02-11 2015-12-31 13F MDU RESOURCES GROUP COM 552690109 501,730 -9,569 -1.87 9,196 4.55 0.0054
2015-11-12 2015-09-30 13F MDU RESOURCES GROUP COM 552690109 511,299 -8,454 -1.63 8,796 -13.37 0.0054
2015-08-13 2015-06-30 13F MDU RESOURCES GROUP COM 552690109 519,753 41,364 8.65 10,153 -0.56 0.0058
2015-05-14 2015-03-31 13F MDU RESOURCES GROUP COM 552690109 478,389 13,751 2.96 10,210 -6.51 0.0059
2015-02-13 2014-12-31 13F MDU RESOURCES GROUP COM 552690109 464,638 -27,133 -5.52 10,921 -20.15 0.0064
2014-11-14 2014-09-30 13F MDU RESOURCES GROUP COM 552690109 491,771 11,397 2.37 13,677 -18.89 0.0082
2014-08-13 2014-06-30 13F MDU RESOURCES GROUP COM 552690109 480,374 5,861 1.24 16,862 3.56 0.0099
2014-05-14 2014-03-31 13F MDU RESOURCES GROUP COM 552690109 474,513 13,901 3.02 16,282 15.69 0.0098
2014-02-14 2013-12-31 13F MDU RESOURCES GROUP COM 552690109 460,612 7,014 1.55 14,074 10.92 0.0085
2013-11-14 2013-09-30 13F MDU RESOURCES GROUP COM 552690109 453,598 21,824 5.05 12,688 13.41 0.0083
2013-08-14 2013-06-30 13F MDU RESOURCES GROUP COM 552690109 431,774 431,774 11,188 0.0077
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.