MDU RES GROUP INC

Ticker: MDU CUSIP: 552690109 Class: COM

SEI INVESTMENTS CO's Holding History (CIK: 0000350894)

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

Q4 2025

Shares 5,323,908 Value ($000) $103,923 Avg Close $19.57 Range $17.31 - $21.34

Q3 2025

Shares 1,038,077 Value ($000) $18,488 Avg Close $16.46 Range $15.63 - $17.87

Q2 2025

Shares 108,908 Value ($000) $1,816 Avg Close $16.45 Range $14.69 - $17.49

Q1 2025

Shares 102,008 Value ($000) $1,725 Avg Close $16.76 Range $15.90 - $18.33

Q4 2024

Shares 119,398 Value ($000) $2,152 Avg Close $16.91 Range $14.27 - $19.63

Q3 2024

Shares 94,665 Value ($000) $2,595 Avg Close $13.65 Range $12.67 - $14.89

Q2 2024

Shares 92,428 Value ($000) $2,320 Avg Close $13.17 Range $12.37 - $13.72

Q1 2024

Shares 46,208 Value ($000) $1,164 Avg Close $10.98 Range $9.86 - $13.32

Q4 2023

Shares 41,031 Value ($000) $812 Avg Close $9.95 Range $9.41 - $10.65

Q3 2023

Shares 32,651 Value ($000) $639 Avg Close $10.78 Range $10.08 - $11.69

Q2 2023

Shares 22,744 Value ($000) $476 Avg Close $10.43 Range $9.61 - $10.94

Q1 2023

Shares 14,664 Value ($000) $447 Avg Close $10.70 Range $9.98 - $11.37

Q2 2022

Shares 37,537 Value ($000) $1,017 Avg Close $9.15 Range $8.51 - $9.69

Q1 2022

Shares 89,151 Value ($000) $2,427 Avg Close $9.45 Range $8.60 - $10.74

Q4 2021

Shares 100,047 Value ($000) $3,127 Avg Close $9.99 Range $9.15 - $10.63

Q3 2021

Shares 99,378 Value ($000) $3,008 Avg Close $10.53 Range $9.83 - $11.13

Q2 2021

Shares 98,549 Value ($000) $3,149 Avg Close $10.95 Range $10.22 - $11.62

Q1 2021

Shares 114,518 Value ($000) $3,037 Avg Close $9.46 Range $8.38 - $10.66

Q4 2020

Shares 114,518 Value ($000) $3,037 Avg Close $8.05 Range $7.18 - $8.74

Q3 2020

Shares 122,164 Value ($000) $2,799 Avg Close $7.32 Range $6.58 - $8.03

Q2 2020

Shares 113,015 Value ($000) $2,555 Avg Close $7.03 Range $5.94 - $8.01

Q1 2020

Shares 68,114 Value ($000) $1,487 Avg Close $8.83 Range $4.81 - $10.26

Q4 2019

Shares 23,395 Value ($000) $673 Avg Close $9.10 Range $8.60 - $9.50

Q3 2019

Shares 21,414 Value ($000) $551 Avg Close $8.44 Range $7.93 - $9.12

Q2 2019

Shares 21,256 Value ($000) $499 Avg Close $7.99 Range $7.59 - $8.30

Q1 2019

Shares 28,061 Value ($000) $703 Avg Close $7.90 Range $7.22 - $8.40

Q4 2018

Shares 26,869 Value ($000) $638 Avg Close $7.88 Range $7.03 - $8.27

Q3 2018

Shares 19,883 Value ($000) $489 Avg Close $8.58 Range $7.77 - $9.02

Q2 2018

Shares 48,274 Value ($000) $1,385 Avg Close $8.49 Range $8.18 - $8.87

Q1 2018

Shares 35,363 Value ($000) $996 Avg Close $8.03 Range $7.29 - $8.53

Q4 2017

Shares 8,848 Value ($000) $238 Avg Close $8.04 Range $7.71 - $8.41

Q3 2017

Shares 7,509 Value ($000) $195 Avg Close $7.77 Range $7.44 - $8.20

Q2 2017

Shares 5,095 Value ($000) $134 Avg Close $7.92 Range $7.51 - $8.25

Q1 2017

Shares 8,013 Value ($000) $219 Avg Close $8.03 Range $7.53 - $8.67

Q4 2016

Shares 6,922 Value ($000) $199 Avg Close $7.89 Range $7.09 - $8.72

Q3 2016

Shares 6,006 Value ($000) $153 Avg Close $6.91 Range $6.46 - $7.47

Q2 2016

Shares 6,004 Value ($000) $144 Avg Close $6.12 Range $5.33 - $6.90

Q1 2016

Shares 308 Value ($000) $6 Avg Close $5.02 Range $4.40 - $5.57

Q4 2015

Shares 587 Value ($000) $10 Avg Close $5.10 Range $4.59 - $5.49

Q3 2015

Shares 369 Value ($000) $7 Avg Close $4.95 Range $4.48 - $5.44

Q2 2015

Shares 154 Value ($000) $3 Avg Close $5.79 Range $5.30 - $6.32

Q1 2015

Shares 268 Value ($000) $4 Avg Close $6.06 Range $5.47 - $6.65

Q4 2014

Shares 242 Value ($000) $3 Avg Close $6.84 Range $5.78 - $7.67

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	5,323,908	$103,923	$19.57	$17.31 - $21.34
Q3 2025	1,038,077	$18,488	$16.46	$15.63 - $17.87
Q2 2025	108,908	$1,816	$16.45	$14.69 - $17.49
Q1 2025	102,008	$1,725	$16.76	$15.90 - $18.33
Q4 2024	119,398	$2,152	$16.91	$14.27 - $19.63
Q3 2024	94,665	$2,595	$13.65	$12.67 - $14.89
Q2 2024	92,428	$2,320	$13.17	$12.37 - $13.72
Q1 2024	46,208	$1,164	$10.98	$9.86 - $13.32
Q4 2023	41,031	$812	$9.95	$9.41 - $10.65
Q3 2023	32,651	$639	$10.78	$10.08 - $11.69
Q2 2023	22,744	$476	$10.43	$9.61 - $10.94
Q1 2023	14,664	$447	$10.70	$9.98 - $11.37
Q2 2022	37,537	$1,017	$9.15	$8.51 - $9.69
Q1 2022	89,151	$2,427	$9.45	$8.60 - $10.74
Q4 2021	100,047	$3,127	$9.99	$9.15 - $10.63
Q3 2021	99,378	$3,008	$10.53	$9.83 - $11.13
Q2 2021	98,549	$3,149	$10.95	$10.22 - $11.62
Q1 2021	114,518	$3,037	$9.46	$8.38 - $10.66
Q4 2020	114,518	$3,037	$8.05	$7.18 - $8.74
Q3 2020	122,164	$2,799	$7.32	$6.58 - $8.03
Q2 2020	113,015	$2,555	$7.03	$5.94 - $8.01
Q1 2020	68,114	$1,487	$8.83	$4.81 - $10.26
Q4 2019	23,395	$673	$9.10	$8.60 - $9.50
Q3 2019	21,414	$551	$8.44	$7.93 - $9.12
Q2 2019	21,256	$499	$7.99	$7.59 - $8.30
Q1 2019	28,061	$703	$7.90	$7.22 - $8.40
Q4 2018	26,869	$638	$7.88	$7.03 - $8.27
Q3 2018	19,883	$489	$8.58	$7.77 - $9.02
Q2 2018	48,274	$1,385	$8.49	$8.18 - $8.87
Q1 2018	35,363	$996	$8.03	$7.29 - $8.53
Q4 2017	8,848	$238	$8.04	$7.71 - $8.41
Q3 2017	7,509	$195	$7.77	$7.44 - $8.20
Q2 2017	5,095	$134	$7.92	$7.51 - $8.25
Q1 2017	8,013	$219	$8.03	$7.53 - $8.67
Q4 2016	6,922	$199	$7.89	$7.09 - $8.72
Q3 2016	6,006	$153	$6.91	$6.46 - $7.47
Q2 2016	6,004	$144	$6.12	$5.33 - $6.90
Q1 2016	308	$6	$5.02	$4.40 - $5.57
Q4 2015	587	$10	$5.10	$4.59 - $5.49
Q3 2015	369	$7	$4.95	$4.48 - $5.44
Q2 2015	154	$3	$5.79	$5.30 - $6.32
Q1 2015	268	$4	$6.06	$5.47 - $6.65
Q4 2014	242	$3	$6.84	$5.78 - $7.67