MDU Resources Group, Inc.
MX ˙ BMV ˙ US5526901096
SecurityMX:MDU / MDU Resources Group, Inc.
InstitutionQuadrant Capital Group Llc
Latest Disclosed Ownership12,931 shares
Latest Disclosed Value $ 267,931
Quadrant Capital Group Llc reports 0.62% increase in ownership of MDU / MDU Resources Group, Inc.

On May 13, 2026 - Quadrant Capital Group Llc filed a 13F-HR/A form disclosing ownership of 12,931 shares of MDU Resources Group, Inc. (MX:MDU) valued at $267,931 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 12,851 shares of MDU Resources Group, Inc.. This represents a change in shares of 0.62% 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)
2026-05-13 2026-03-31 13F/A-1 MDU RES GROUP COM 552690109 12,931 80 0.62 268 6.80 0.0080
2026-05-11 2026-03-31 13F MDU RES GROUP COM 552690109 12,931 80 49 0.0369
2026-02-12 2025-12-31 13F MDU RES GROUP COM 552690109 12,851 0 0.00 251 9.65 0.0076
2025-11-13 2025-09-30 13F MDU RES GROUP COM 552690109 12,851 931 7.81 229 15.15 0.0074
2025-08-13 2025-06-30 13F MDU RES GROUP COM 552690109 11,920 -265 -2.17 199 -3.88 0.0072
2025-05-13 2025-03-31 13F MDU RES GROUP COM 552690109 12,185 11,182 1,114.86 206 1,044.44 0.0077
2025-02-13 2024-12-31 13F MDU RES GROUP COM 552690109 1,003 614 157.84 18 80.00 0.0012
2024-11-12 2024-09-30 13F MDU RES GROUP COM 552690109 389 0 0.00 11 11.11 0.0007
2024-08-12 2024-06-30 13F MDU RES GROUP COM 552690109 389 6 1.57 10 0.00 0.0007
2024-05-15 2024-03-31 13F MDU RES GROUP COM 552690109 383 -1,069 -73.62 10 -67.86 0.0008
2024-02-08 2023-12-31 13F MDU RES GROUP COM 552690109 1,452 -640 -30.59 29 -30.00 0.0025
2023-11-14 2023-09-30 13F MDU RES GROUP COM 552690109 2,092 1,720 462.37 41 471.43 0.0041
2023-08-10 2023-06-30 13F MDU RES GROUP COM 552690109 372 46 14.11 8 -22.22 0.0008
2023-05-11 2023-03-31 13F MDU RES GROUP COM 552690109 326 -63 -16.20 10 -18.18 0.0010
2023-02-13 2022-12-31 13F MDU RES GROUP COM 552690109 389 -410 -51.31 12 -50.00 0.0013
2022-11-10 2022-09-30 13F MDU RES GROUP COM 552690109 799 375 88.44 22 100.00 0.0029
2022-08-09 2022-06-30 13F MDU RES GROUP COM 552690109 424 53 14.29 11 10.00 0.0015
2022-05-06 2022-03-31 13F MDU RES GROUP COM 552690109 371 -139 -27.25 10 -37.50 0.0012
2022-02-01 2021-12-31 13F MDU RES GROUP COM 552690109 510 267 109.88 16 128.57 0.0019
2021-11-12 2021-09-30 13F MDU RES GROUP COM 552690109 243 0 0.00 7 -12.50 0.0010
2021-08-09 2021-06-30 13F MDU RES GROUP COM 552690109 243 0 0.00 8 0.00 0.0012
2021-05-12 2021-03-31 13F MDU RES GROUP COM 552690109 243 0 0.00 8 33.33 0.0013
2021-02-16 2020-12-31 13F MDU RES GROUP COM 552690109 243 -620 -71.84 6 -68.42 0.0011
2020-11-13 2020-09-30 13F MDU RES GROUP COM 552690109 863 575 199.65 19 216.67 0.0041
2020-08-13 2020-06-30 13F MDU RES GROUP COM 552690109 288 -1,312 -82.00 6 -82.35 0.0013
2020-05-15 2020-03-31 13F MDU Resources Group Com 552690109 1,600 593 58.89 34 21.43 0.0057
2020-03-19 2019-12-31 13F/A-1 MDU Resources Group Com 552690109 1,007 22 2.23 28 7.69 0.0034
2020-02-03 2019-12-31 13F MDU Resources Group Com 552690109 1,007 22 28 94.6157
2019-10-24 2019-09-30 13F MDU Resources Group COM 552690109 985 0 0.00 26 8.33 0.0040
2019-07-24 2019-06-30 13F MDU Resources Group COM 552690109 985 -1,366 -58.10 24 -59.32 0.0038
2019-04-29 2019-03-31 13F MDU Resources Group COM 552690109 2,351 2,168 1,184.70 59 1,866.67 0.0104
2019-01-17 2018-12-31 13F MDU Resources Group COM 552690109 183 0 0.00 3 0.00 0.0008
2018-10-29 2018-09-30 13F MDU Resources Group COM 552690109 183 0 0.00 3 -25.00 0.0009
2018-08-08 2018-06-30 13F MDU Resources Group COM 552690109 183 0 0.00 4 0.00 0.0014
2018-05-10 2018-03-31 13F MDU Resources Group COM 552690109 183 -73 -28.52 4 -20.00 0.0015
2018-01-31 2017-12-31 13F MDU Resrcs Grp COM 552690109 256 0 0.00 5 25.00 0.0020
2017-10-13 2017-09-30 13F MDU Resrcs Grp COM 552690109 256 77 43.02 4 300.00 0.0017
2017-08-14 2017-06-30 13F MDU Resrcs Grp COM 552690109 179 73 68.87 1 -50.00 0.0004
2017-04-10 2017-03-31 13F MDU Resrcs Grp COM 552690109 106 0 0.00 2 0.00 0.0009
2017-01-11 2016-12-31 13F MDU Resrcs Grp COM 552690109 106 0 0.00 2 0.00 0.0010
2016-10-25 2016-09-30 13F MDU Resrcs Grp COM 552690109 106 0 0.00 2 0.00 0.0013
2016-07-28 2016-06-30 13F MDU Resrcs Grp COM 552690109 106 61 135.56 2 0.0014
2016-04-27 2016-03-31 13F MDU Resrcs Grp COM 552690109 45 -210 -82.35 0 -100.00
2016-01-28 2015-12-31 13F MDU Resrcs Grp COM 552690109 255 210 466.67 3 0.0021
2015-10-28 2015-09-30 13F MDU Resrcs Grp COM 552690109 45 45 0 0.0000
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.