MDU RES GROUP INC

Ticker: MDU CUSIP: 552690109 Class: COM

Swiss National Bank's Holding History (CIK: 0001582202)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 382,790 Value ($000) $7,472 Avg Close $19.57 Range $17.31 - $21.34

Q3 2025

Shares 376,390 Value ($000) $6,704 Avg Close $16.46 Range $15.63 - $17.87

Q2 2025

Shares 370,890 Value ($000) $6,183 Avg Close $16.45 Range $14.69 - $17.49

Q1 2025

Shares 375,290 Value ($000) $6,346 Avg Close $16.76 Range $15.90 - $18.33

Q4 2024

Shares 380,990 Value ($000) $6,865 Avg Close $16.91 Range $14.27 - $19.63

Q3 2024

Shares 377,990 Value ($000) $10,361 Avg Close $13.65 Range $12.67 - $14.89

Q2 2024

Shares 381,290 Value ($000) $9,570 Avg Close $13.17 Range $12.37 - $13.72

Q1 2024

Shares 381,290 Value ($000) $9,609 Avg Close $10.98 Range $9.86 - $13.32

Q4 2023

Shares 381,290 Value ($000) $7,550 Avg Close $9.95 Range $9.41 - $10.65

Q3 2023

Shares 425,290 Value ($000) $8,327 Avg Close $10.78 Range $10.08 - $11.69

Q2 2023

Shares 421,190 Value ($000) $8,820 Avg Close $10.43 Range $9.61 - $10.94

Q1 2023

Shares 438,890 Value ($000) $13,377 Avg Close $10.70 Range $9.98 - $11.37

Q4 2022

Shares 490,990 Value ($000) $14,897 Avg Close $10.27 Range $9.29 - $11.06

Q3 2022

Shares 482,190 Value ($000) $13,188 Avg Close $10.02 Range $8.94 - $11.08

Q2 2022

Shares 478,990 Value ($000) $12,928 Avg Close $9.15 Range $8.51 - $9.69

Q1 2022

Shares 480,790 Value ($000) $12,813 Avg Close $9.45 Range $8.60 - $10.74

Q4 2021

Shares 445,390 Value ($000) $13,736 Avg Close $9.99 Range $9.15 - $10.63

Q3 2021

Shares 444,590 Value ($000) $13,191 Avg Close $10.53 Range $9.83 - $11.13

Q2 2021

Shares 441,990 Value ($000) $13,852 Avg Close $10.95 Range $10.22 - $11.62

Q1 2021

Shares 458,090 Value ($000) $14,480 Avg Close $9.46 Range $8.38 - $10.66

Q4 2020

Shares 453,390 Value ($000) $11,942 Avg Close $8.05 Range $7.18 - $8.74

Q3 2020

Shares 454,490 Value ($000) $10,226 Avg Close $7.32 Range $6.58 - $8.03

Q2 2020

Shares 447,290 Value ($000) $9,921 Avg Close $7.03 Range $5.94 - $8.01

Q1 2020

Shares 388,590 Value ($000) $8,355 Avg Close $8.83 Range $4.81 - $10.26

Q4 2019

Shares 381,090 Value ($000) $11,322 Avg Close $9.10 Range $8.60 - $9.50

Q3 2019

Shares 372,790 Value ($000) $10,509 Avg Close $8.44 Range $7.93 - $9.12

Q2 2019

Shares 365,790 Value ($000) $9,437 Avg Close $7.99 Range $7.59 - $8.30

Q1 2019

Shares 339,390 Value ($000) $8,766 Avg Close $7.90 Range $7.22 - $8.40

Q4 2018

Shares 329,290 Value ($000) $7,850 Avg Close $7.88 Range $7.03 - $8.27

Q3 2018

Shares 322,990 Value ($000) $8,298 Avg Close $8.58 Range $7.77 - $9.02

Q2 2018

Shares 322,990 Value ($000) $9,263 Avg Close $8.49 Range $8.18 - $8.87

Q1 2018

Shares 322,990 Value ($000) $9,095 Avg Close $8.03 Range $7.29 - $8.53

Q4 2017

Shares 315,990 Value ($000) $8,494 Avg Close $8.04 Range $7.71 - $8.41

Q3 2017

Shares 309,490 Value ($000) $8,031 Avg Close $7.77 Range $7.44 - $8.20

Q2 2017

Shares 309,490 Value ($000) $8,109 Avg Close $7.92 Range $7.51 - $8.25

Q1 2017

Shares 306,490 Value ($000) $8,389 Avg Close $8.03 Range $7.53 - $8.67

Q4 2016

Shares 304,990 Value ($000) $8,775 Avg Close $7.89 Range $7.09 - $8.72

Q3 2016

Shares 297,390 Value ($000) $7,566 Avg Close $6.91 Range $6.46 - $7.47

Q2 2016

Shares 308,090 Value ($000) $7,394 Avg Close $6.12 Range $5.33 - $6.90

Q1 2016

Shares 308,090 Value ($000) $5,788 Avg Close $5.02 Range $4.40 - $5.57

Q4 2015

Shares 234,390 Value ($000) $4,294 Avg Close $5.10 Range $4.59 - $5.49

Q3 2015

Shares 330,216 Value ($000) $5,680 Avg Close $4.95 Range $4.48 - $5.44

Q2 2015

Shares 299,616 Value ($000) $5,852 Avg Close $5.79 Range $5.30 - $6.32

Q1 2015

Shares 280,216 Value ($000) $5,980 Avg Close $6.06 Range $5.47 - $6.65

Q4 2014

Shares 169,116 Value ($000) $3,974 Avg Close $6.84 Range $5.78 - $7.67

Q3 2014

Shares 173,816 Value ($000) $4,834 Avg Close $8.38 Range $7.36 - $9.47

Q2 2014

Shares 175,316 Value ($000) $6,154 Avg Close $9.15 Range $8.68 - $9.59

Q1 2014

Shares 174,316 Value ($000) $5,981 Avg Close $8.65 Range $7.84 - $9.29

Q4 2013

Shares 190,316 Value ($000) $5,814 Avg Close $7.80 Range $7.24 - $8.15

Q3 2013

Shares 194,216 Value ($000) $5,432 Avg Close $7.25 Range $6.78 - $7.90

Q2 2013

Shares 190,916 Value ($000) $4,947 Avg Close $6.58 Range $6.07 - $7.05

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	382,790	$7,472	$19.57	$17.31 - $21.34
Q3 2025	376,390	$6,704	$16.46	$15.63 - $17.87
Q2 2025	370,890	$6,183	$16.45	$14.69 - $17.49
Q1 2025	375,290	$6,346	$16.76	$15.90 - $18.33
Q4 2024	380,990	$6,865	$16.91	$14.27 - $19.63
Q3 2024	377,990	$10,361	$13.65	$12.67 - $14.89
Q2 2024	381,290	$9,570	$13.17	$12.37 - $13.72
Q1 2024	381,290	$9,609	$10.98	$9.86 - $13.32
Q4 2023	381,290	$7,550	$9.95	$9.41 - $10.65
Q3 2023	425,290	$8,327	$10.78	$10.08 - $11.69
Q2 2023	421,190	$8,820	$10.43	$9.61 - $10.94
Q1 2023	438,890	$13,377	$10.70	$9.98 - $11.37
Q4 2022	490,990	$14,897	$10.27	$9.29 - $11.06
Q3 2022	482,190	$13,188	$10.02	$8.94 - $11.08
Q2 2022	478,990	$12,928	$9.15	$8.51 - $9.69
Q1 2022	480,790	$12,813	$9.45	$8.60 - $10.74
Q4 2021	445,390	$13,736	$9.99	$9.15 - $10.63
Q3 2021	444,590	$13,191	$10.53	$9.83 - $11.13
Q2 2021	441,990	$13,852	$10.95	$10.22 - $11.62
Q1 2021	458,090	$14,480	$9.46	$8.38 - $10.66
Q4 2020	453,390	$11,942	$8.05	$7.18 - $8.74
Q3 2020	454,490	$10,226	$7.32	$6.58 - $8.03
Q2 2020	447,290	$9,921	$7.03	$5.94 - $8.01
Q1 2020	388,590	$8,355	$8.83	$4.81 - $10.26
Q4 2019	381,090	$11,322	$9.10	$8.60 - $9.50
Q3 2019	372,790	$10,509	$8.44	$7.93 - $9.12
Q2 2019	365,790	$9,437	$7.99	$7.59 - $8.30
Q1 2019	339,390	$8,766	$7.90	$7.22 - $8.40
Q4 2018	329,290	$7,850	$7.88	$7.03 - $8.27
Q3 2018	322,990	$8,298	$8.58	$7.77 - $9.02
Q2 2018	322,990	$9,263	$8.49	$8.18 - $8.87
Q1 2018	322,990	$9,095	$8.03	$7.29 - $8.53
Q4 2017	315,990	$8,494	$8.04	$7.71 - $8.41
Q3 2017	309,490	$8,031	$7.77	$7.44 - $8.20
Q2 2017	309,490	$8,109	$7.92	$7.51 - $8.25
Q1 2017	306,490	$8,389	$8.03	$7.53 - $8.67
Q4 2016	304,990	$8,775	$7.89	$7.09 - $8.72
Q3 2016	297,390	$7,566	$6.91	$6.46 - $7.47
Q2 2016	308,090	$7,394	$6.12	$5.33 - $6.90
Q1 2016	308,090	$5,788	$5.02	$4.40 - $5.57
Q4 2015	234,390	$4,294	$5.10	$4.59 - $5.49
Q3 2015	330,216	$5,680	$4.95	$4.48 - $5.44
Q2 2015	299,616	$5,852	$5.79	$5.30 - $6.32
Q1 2015	280,216	$5,980	$6.06	$5.47 - $6.65
Q4 2014	169,116	$3,974	$6.84	$5.78 - $7.67
Q3 2014	173,816	$4,834	$8.38	$7.36 - $9.47
Q2 2014	175,316	$6,154	$9.15	$8.68 - $9.59
Q1 2014	174,316	$5,981	$8.65	$7.84 - $9.29
Q4 2013	190,316	$5,814	$7.80	$7.24 - $8.15
Q3 2013	194,216	$5,432	$7.25	$6.78 - $7.90
Q2 2013	190,916	$4,947	$6.58	$6.07 - $7.05