MDU Resources Group, Inc.
MX ˙ BMV ˙ US5526901096
SecurityMX:MDU / MDU Resources Group, Inc.
InstitutionManaged Asset Portfolios, Llc
Latest Disclosed Ownership1,037,406 shares
Latest Disclosed Value $ 21,495,062
Managed Asset Portfolios, Llc reports 2.83% decrease in ownership of MDU / MDU Resources Group, Inc.

On May 7, 2026 - Managed Asset Portfolios, Llc filed a 13F-HR form disclosing ownership of 1,037,406 shares of MDU Resources Group, Inc. (MX:MDU) valued at $21,495,062 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 1,067,661 shares of MDU Resources Group, Inc.. This represents a change in shares of -2.83% 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)
2026-05-07 2026-03-31 13F MDU Resources Group COM 552690109 1,037,406 -30,255 -2.83 21,495 3.14 2.5761
2026-01-29 2025-12-31 13F MDU Resources Group COM 552690109 1,067,661 -9,471 -0.88 20,841 8.64 2.5167
2025-11-12 2025-09-30 13F MDU Resources Group COM 552690109 1,077,132 26,631 2.54 19,184 9.55 2.3750
2025-08-11 2025-06-30 13F MDU Resources Group COM 552690109 1,050,501 -13,745 -1.29 17,512 -2.70 2.2751
2025-05-12 2025-03-31 13F MDU Resources Group COM 552690109 1,064,246 -4,474 -0.42 17,996 -6.55 2.4934
2025-02-07 2024-12-31 13F MDU Resources Group COM 552690109 1,068,720 -12,510 -1.16 19,258 -35.02 2.8549
2024-11-12 2024-09-30 13F MDU Resources Group COM 552690109 1,081,230 -5,341 -0.49 29,637 8.67 4.1866
2024-08-14 2024-06-30 13F MDU Resources Group COM 552690109 1,086,571 -61,865 -5.39 27,273 -5.76 4.0432
2024-05-09 2024-03-31 13F MDU Resources Group COM 552690109 1,148,436 8,318 0.73 28,941 28.20 4.2124
2024-02-08 2023-12-31 13F MDU Resources Group COM 552690109 1,140,118 18,730 1.67 22,574 2.81 3.4227
2023-11-09 2023-09-30 13F MDU Resources Group COM 552690109 1,121,388 299,593 36.46 21,957 27.59 3.3647
2023-08-11 2023-06-30 13F MDU Resources Group COM 552690109 821,795 244,428 42.33 17,208 101,123.53 2.5834
2023-05-11 2023-03-31 13F MDU Resources Group COM 552690109 577,367 -210 -0.04 18 0.00 2.6713
2023-02-07 2022-12-31 13F MDU Resources Group COM 552690109 577,577 3,778 0.66 18 -99.89 2.7403
2022-11-14 2022-09-30 13F MDU Resources Group COM 552690109 573,799 48,615 9.26 15,693 10.72 2.7843
2022-08-09 2022-06-30 13F MDU Resources Group COM 552690109 525,184 502,936 2,260.59 14,174 2,290.22 2.2498
2022-05-10 2022-03-31 13F MDU Resources Group COM 552690109 22,248 -489,469 -95.65 593 -96.24 0.0487
2022-05-10 2022-03-31 13F MDU Resources Group COM 552690109 518,344 13,814
2022-02-07 2021-12-31 13F MDU Resources Group COM 552690109 511,717 121,254 31.05 15,781 36.22 2.2292
2021-11-05 2021-09-30 13F MDU Resources Group COM 552690109 390,463 793 0.20 11,585 -5.13 1.7643
2021-09-28 2021-06-30 13F/A-1 MDU Resources Group COM 552690109 389,670 18,997 5.13 12,212 4.23 1.8185
2021-08-16 2021-06-30 13F MDU Resources Group COM 552690109 389,670 18,997 12,212 1.8185
2021-05-14 2021-03-31 13F MDU Resources Group COM 552690109 370,673 22,614 6.50 11,716 27.79 1.8839
2021-02-17 2020-12-31 13F MDU Resources Group COM 552690109 348,059 46,908 15.58 9,168 35.30 1.6115
2020-11-10 2020-09-30 13F MDU Resources Group COM 552690109 301,151 301,151 6,776 1.3478
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.