MDU Resources Group, Inc.
DE ˙ DB ˙ US5526901096
17,70 € ↑0,10 (0,57%)
2026-06-03
DEL PRIS
SecurityDE:MRE / MDU Resources Group, Inc.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership93,228 shares
Latest Disclosed Value $ 1,932,150
Janus Henderson Group Plc reports 15.20% increase in ownership of MRE / MDU Resources Group, Inc.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 93,228 shares of MDU Resources Group, Inc. (DE:MRE) valued at $1,659,458 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 80,928 shares of MDU Resources Group, Inc.. This represents a change in shares of 15.20% during the quarter. The current value of the position is $1,650,136 USD.

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)
2026-05-18 2026-03-31 13F/A-1 MDU RES GROUP COM 552690109 93,228 12,300 15.20 1,932 22.28 0.0003
2026-05-15 2026-03-31 13F MDU RES GROUP COM 552690109 93,228 12,300 15.20 1,932 22.28 0.0004
2026-02-17 2025-12-31 13F MDU RES GROUP COM 552690109 80,928 875 1.09 1,580 10.80 0.0007
2025-11-14 2025-09-30 13F MDU RES GROUP COM 552690109 80,053 0 0.00 1,426 6.90 0.0007
2025-08-14 2025-06-30 13F MDU RES GROUP COM 552690109 80,053 -10,300 -11.40 1,334 -11.30 0.0007
2025-05-15 2025-03-31 13F MDU RES GROUP COM 552690109 90,353 0 0.00 1,505 -7.56 0.0008
2025-02-14 2024-12-31 13F MDU RES GROUP COM 552690109 90,353 0 0.00 1,628 -34.26 0.0008
2024-11-14 2024-09-30 13F MDU RES GROUP COM 552690109 90,353 0 0.00 2,475 9.18 0.0013
2024-08-14 2024-06-30 13F MDU RES GROUP COM 552690109 90,353 -992 -1.09 2,267 -1.56 0.0012
2024-05-15 2024-03-31 13F MDU RES GROUP COM 552690109 91,345 2 0.00 2,304 27.31 0.0013
2024-02-14 2023-12-31 13F MDU RES GROUP COM 552690109 91,343 -150 -0.16 1,809 0.95 0.0011
2023-11-14 2023-09-30 13F MDU RES GROUP COM 552690109 91,493 -17 -0.02 1,792 -6.47 0.0012
2023-08-14 2023-06-30 13F MDU RES GROUP COM 552690109 91,510 -146 -0.16 1,917 -31.40 0.0012
2023-05-15 2023-03-31 13F MDU RES GROUP COM 552690109 91,656 55,721 155.06 2,793 156.24 0.0018
2023-02-14 2022-12-31 13F MDU RES GROUP COM 552690109 35,935 -611 -1.67 1,090 8.89 0.0008
2023-01-13 2022-09-30 13F/A-1 MDU RES GROUP COM 552690109 36,546 -4,117 -10.12 1,001 -8.83 0.0007
2022-11-14 2022-09-30 13F MDU RES GROUP COM 552690109 36,546 -4,117 1,001 0.0003
2022-08-15 2022-06-30 13F MDU RES GROUP COM 552690109 40,663 -71 -0.17 1,098 1.20 0.0008
2022-05-16 2022-03-31 13F MDU RES GROUP COM 552690109 40,734 13 0.03 1,085 -13.61 0.0005
2022-02-14 2021-12-31 13F MDU RES GROUP COM 552690109 40,721 20,482 101.20 1,256 108.99 0.0005
2021-11-16 2021-09-30 13F MDU RES GROUP COM 552690109 20,239 20,239 601 0.0003
2020-11-16 2020-09-30 13F MDU RES GROUP COM 552690109 0 -20,222 -100.00 0 -100.00
2020-08-14 2020-06-30 13F MDU RES GROUP COM 552690109 20,222 -102,145 -83.47 448 -82.97 0.0003
2020-05-14 2020-03-31 13F MDU RES GROUP COM 552690109 122,367 61,623 101.45 2,631 45.76 0.0018
2020-02-18 2019-12-31 13F MDU RES GROUP COM 552690109 60,744 23,823 64.52 1,805 73.39 0.0009
2019-11-14 2019-09-30 13F MDU RES GROUP COM 552690109 36,921 0 0.00 1,041 9.35 0.0006
2019-07-31 2019-06-30 13F MDU RES GROUP COM 552690109 36,921 -19,402 -34.45 952 -34.57 0.0005
2019-04-30 2019-03-31 13F MDU RES GROUP COM 552690109 56,323 12,053 27.23 1,455 37.91 0.0008
2019-02-06 2018-12-31 13F MDU RES GROUP COM 552690109 44,270 -41,751 -48.54 1,055 -52.26 0.0007
2018-11-09 2018-09-30 13F MDU RES GROUP COM 552690109 86,021 22,600 35.63 2,210 21.50 0.0012
2018-08-10 2018-06-30 13F MDU RES GROUP COM 552690109 63,421 53,600 545.77 1,819 556.68 0.0010
2018-05-14 2018-03-31 13F MDU RES GROUP COM 552690109 9,821 -32,440 -76.76 277 -75.62 0.0002
2018-03-12 2017-12-31 13F/A-1 MDU RES GROUP COM 552690109 42,261 -122,020 -74.28 1,136 -73.35 0.0007
2018-02-09 2017-12-31 13F MDU RES GROUP COM 552690109 42,261 -122,020 1,136
2017-11-14 2017-09-30 13F MDU RES GROUP COM 552690109 164,281 -311,200 -65.45 4,263 -65.78 0.0027
2017-08-17 2017-06-30 13F/A-1 MDU RES GROUP COM 552690109 475,481 465,660 4,741.47 12,458 4,531.23 0.0085
2017-08-14 2017-06-30 13F MDU RES GROUP COM 552690109 475,481 465,660 12,458
2017-05-03 2017-03-31 13F MDU RES GROUP COM 552690109 9,821 0 0.00 269 -4.95 0.0019
2017-01-30 2016-12-31 13F MDU RES GROUP COM 552690109 9,821 0 0.00 283 13.20 0.0021
2016-10-24 2016-09-30 13F MDU RES GROUP COM 552690109 9,821 0 0.00 250 5.93 0.0018
2016-07-29 2016-06-30 13F MDU RES GROUP COM 552690109 9,821 0 0.00 236 23.56 0.0020
2016-05-12 2016-03-31 13F MDU RES GROUP COM 552690109 9,821 0 0.00 191 6.11 0.0015
2016-02-03 2015-12-31 13F MDU RES GROUP COM 552690109 9,821 -15,921 -61.85 180 -59.37 0.0014
2015-11-16 2015-09-30 13F MDU RES GROUP COM 552690109 25,742 0 0.00 443 -11.93 0.0039
2015-08-17 2015-06-30 13F MDU RES GROUP COM 552690109 25,742 0 0.00 503 -8.38 0.0040
2015-06-02 2015-03-31 13F/A-1 MDU RES GROUP COM 552690109 25,742 0 0.00 549 -9.26 0.0042
2015-05-15 2015-03-31 13F MDU RES GROUP COM 552690109 25,742 549
2015-02-12 2014-12-31 13F MDU RES GROUP COM 552690109 25,742 0 0.00 605 -15.50 0.0044
2014-11-12 2014-09-30 13F MDU RES GROUP COM 552690109 25,742 0 0.00 716 -20.71 0.0067
2014-08-13 2014-06-30 13F MDU RES GROUP COM 552690109 25,742 0 0.00 903 2.27 0.0084
2014-05-08 2014-03-31 13F MDU RES GROUP COM 552690109 25,742 3,900 17.86 883 32.38 0.0086
2014-01-14 2013-12-31 13F MDU RES GROUP COM 552690109 21,842 0 0.00 667 9.17 0.0067
2013-11-12 2013-09-30 13F MDU RES GROUP COM 552690109 21,842 0 0.00 611 6.26 0.0067
2013-08-15 2013-06-30 13F MDU RES GROUP COM 552690109 21,842 21,842 575 0.0067
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.