MDU RES GROUP INC

Ticker: MDU CUSIP: 552690109 Class: COM

RHUMBLINE ADVISERS's Holding History (CIK: 0001115418)

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

Q4 2025

Shares 488,678 Value ($000) $9,539 Avg Close $19.57 Range $17.31 - $21.34

Q3 2025

Shares 481,070 Value ($000) $8,568 Avg Close $16.46 Range $15.63 - $17.87

Q2 2025

Shares 486,512 Value ($000) $8,110 Avg Close $16.45 Range $14.69 - $17.49

Q1 2025

Shares 492,478 Value ($000) $8,328 Avg Close $16.76 Range $15.90 - $18.33

Q4 2024

Shares 507,623 Value ($000) $9,147 Avg Close $16.91 Range $14.27 - $19.63

Q3 2024

Shares 547,578 Value ($000) $15,009 Avg Close $13.65 Range $12.67 - $14.89

Q2 2024

Shares 556,297 Value ($000) $13,963 Avg Close $13.17 Range $12.37 - $13.72

Q1 2024

Shares 578,718 Value ($000) $14,584 Avg Close $10.98 Range $9.86 - $13.32

Q4 2023

Shares 617,468 Value ($000) $12,226 Avg Close $9.95 Range $9.41 - $10.65

Q3 2023

Shares 632,911 Value ($000) $12,392 Avg Close $10.78 Range $10.08 - $11.69

Q2 2023

Shares 639,253 Value ($000) $13,386 Avg Close $10.43 Range $9.61 - $10.94

Q1 2023

Shares 608,644 Value ($000) $19 Avg Close $10.70 Range $9.98 - $11.37

Q4 2022

Shares 615,648 Value ($000) $19 Avg Close $10.27 Range $9.29 - $11.06

Q3 2022

Shares 594,902 Value ($000) $16,271 Avg Close $10.02 Range $8.94 - $11.08

Q2 2022

Shares 579,153 Value ($000) $15,631 Avg Close $9.15 Range $8.51 - $9.69

Q1 2022

Shares 524,809 Value ($000) $13,986 Avg Close $9.45 Range $8.60 - $10.74

Q4 2021

Shares 543,456 Value ($000) $16,760 Avg Close $9.99 Range $9.15 - $10.63

Q3 2021

Shares 541,854 Value ($000) $16,077 Avg Close $10.53 Range $9.83 - $11.13

Q2 2021

Shares 537,418 Value ($000) $16,843 Avg Close $10.95 Range $10.22 - $11.62

Q1 2021

Shares 547,294 Value ($000) $17,300 Avg Close $9.46 Range $8.38 - $10.66

Q4 2020

Shares 549,026 Value ($000) $14,461 Avg Close $8.05 Range $7.18 - $8.74

Q3 2020

Shares 526,169 Value ($000) $11,839 Avg Close $7.32 Range $6.58 - $8.03

Q2 2020

Shares 540,111 Value ($000) $11,980 Avg Close $7.03 Range $5.94 - $8.01

Q1 2020

Shares 529,338 Value ($000) $11,381 Avg Close $8.83 Range $4.81 - $10.26

Q4 2019

Shares 484,983 Value ($000) $14,409 Avg Close $9.10 Range $8.60 - $9.50

Q3 2019

Shares 469,713 Value ($000) $13,241 Avg Close $8.44 Range $7.93 - $9.12

Q2 2019

Shares 470,054 Value ($000) $12,127 Avg Close $7.99 Range $7.59 - $8.30

Q1 2019

Shares 467,742 Value ($000) $12,082 Avg Close $7.90 Range $7.22 - $8.40

Q4 2018

Shares 489,036 Value ($000) $11,659 Avg Close $7.88 Range $7.03 - $8.27

Q3 2018

Shares 333,852 Value ($000) $8,577 Avg Close $8.58 Range $7.77 - $9.02

Q2 2018

Shares 337,708 Value ($000) $9,685 Avg Close $8.49 Range $8.18 - $8.87

Q1 2018

Shares 341,141 Value ($000) $9,607 Avg Close $8.03 Range $7.29 - $8.53

Q4 2017

Shares 354,432 Value ($000) $9,527 Avg Close $8.04 Range $7.71 - $8.41

Q3 2017

Shares 411,819 Value ($000) $10,687 Avg Close $7.77 Range $7.44 - $8.20

Q2 2017

Shares 353,388 Value ($000) $9,259 Avg Close $7.92 Range $7.51 - $8.25

Q1 2017

Shares 360,558 Value ($000) $9,868 Avg Close $8.03 Range $7.53 - $8.67

Q4 2016

Shares 345,825 Value ($000) $9,949 Avg Close $7.89 Range $7.09 - $8.72

Q3 2016

Shares 323,364 Value ($000) $8,226 Avg Close $6.91 Range $6.46 - $7.47

Q2 2016

Shares 310,538 Value ($000) $7,453 Avg Close $6.12 Range $5.33 - $6.90

Q1 2016

Shares 296,921 Value ($000) $5,778 Avg Close $5.02 Range $4.40 - $5.57

Q4 2015

Shares 289,830 Value ($000) $5,310 Avg Close $5.10 Range $4.59 - $5.49

Q3 2015

Shares 287,272 Value ($000) $4,941 Avg Close $4.95 Range $4.48 - $5.44

Q2 2015

Shares 273,137 Value ($000) $5,334 Avg Close $5.79 Range $5.30 - $6.32

Q1 2015

Shares 266,104 Value ($000) $5,679 Avg Close $6.06 Range $5.47 - $6.65

Q4 2014

Shares 246,264 Value ($000) $5,787 Avg Close $6.84 Range $5.78 - $7.67

Q3 2014

Shares 239,714 Value ($000) $6,666 Avg Close $8.38 Range $7.36 - $9.47

Q2 2014

Shares 232,694 Value ($000) $8,168 Avg Close $9.15 Range $8.68 - $9.59

Q1 2014

Shares 256,788 Value ($000) $8,810 Avg Close $8.65 Range $7.84 - $9.29

Q4 2013

Shares 261,228 Value ($000) $7,981 Avg Close $7.80 Range $7.24 - $8.15

Q3 2013

Shares 282,693 Value ($000) $7,907 Avg Close $7.25 Range $6.78 - $7.90

Q2 2013

Shares 283,765 Value ($000) $7,352 Avg Close $6.58 Range $6.07 - $7.05

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	488,678	$9,539	$19.57	$17.31 - $21.34
Q3 2025	481,070	$8,568	$16.46	$15.63 - $17.87
Q2 2025	486,512	$8,110	$16.45	$14.69 - $17.49
Q1 2025	492,478	$8,328	$16.76	$15.90 - $18.33
Q4 2024	507,623	$9,147	$16.91	$14.27 - $19.63
Q3 2024	547,578	$15,009	$13.65	$12.67 - $14.89
Q2 2024	556,297	$13,963	$13.17	$12.37 - $13.72
Q1 2024	578,718	$14,584	$10.98	$9.86 - $13.32
Q4 2023	617,468	$12,226	$9.95	$9.41 - $10.65
Q3 2023	632,911	$12,392	$10.78	$10.08 - $11.69
Q2 2023	639,253	$13,386	$10.43	$9.61 - $10.94
Q1 2023	608,644	$19	$10.70	$9.98 - $11.37
Q4 2022	615,648	$19	$10.27	$9.29 - $11.06
Q3 2022	594,902	$16,271	$10.02	$8.94 - $11.08
Q2 2022	579,153	$15,631	$9.15	$8.51 - $9.69
Q1 2022	524,809	$13,986	$9.45	$8.60 - $10.74
Q4 2021	543,456	$16,760	$9.99	$9.15 - $10.63
Q3 2021	541,854	$16,077	$10.53	$9.83 - $11.13
Q2 2021	537,418	$16,843	$10.95	$10.22 - $11.62
Q1 2021	547,294	$17,300	$9.46	$8.38 - $10.66
Q4 2020	549,026	$14,461	$8.05	$7.18 - $8.74
Q3 2020	526,169	$11,839	$7.32	$6.58 - $8.03
Q2 2020	540,111	$11,980	$7.03	$5.94 - $8.01
Q1 2020	529,338	$11,381	$8.83	$4.81 - $10.26
Q4 2019	484,983	$14,409	$9.10	$8.60 - $9.50
Q3 2019	469,713	$13,241	$8.44	$7.93 - $9.12
Q2 2019	470,054	$12,127	$7.99	$7.59 - $8.30
Q1 2019	467,742	$12,082	$7.90	$7.22 - $8.40
Q4 2018	489,036	$11,659	$7.88	$7.03 - $8.27
Q3 2018	333,852	$8,577	$8.58	$7.77 - $9.02
Q2 2018	337,708	$9,685	$8.49	$8.18 - $8.87
Q1 2018	341,141	$9,607	$8.03	$7.29 - $8.53
Q4 2017	354,432	$9,527	$8.04	$7.71 - $8.41
Q3 2017	411,819	$10,687	$7.77	$7.44 - $8.20
Q2 2017	353,388	$9,259	$7.92	$7.51 - $8.25
Q1 2017	360,558	$9,868	$8.03	$7.53 - $8.67
Q4 2016	345,825	$9,949	$7.89	$7.09 - $8.72
Q3 2016	323,364	$8,226	$6.91	$6.46 - $7.47
Q2 2016	310,538	$7,453	$6.12	$5.33 - $6.90
Q1 2016	296,921	$5,778	$5.02	$4.40 - $5.57
Q4 2015	289,830	$5,310	$5.10	$4.59 - $5.49
Q3 2015	287,272	$4,941	$4.95	$4.48 - $5.44
Q2 2015	273,137	$5,334	$5.79	$5.30 - $6.32
Q1 2015	266,104	$5,679	$6.06	$5.47 - $6.65
Q4 2014	246,264	$5,787	$6.84	$5.78 - $7.67
Q3 2014	239,714	$6,666	$8.38	$7.36 - $9.47
Q2 2014	232,694	$8,168	$9.15	$8.68 - $9.59
Q1 2014	256,788	$8,810	$8.65	$7.84 - $9.29
Q4 2013	261,228	$7,981	$7.80	$7.24 - $8.15
Q3 2013	282,693	$7,907	$7.25	$6.78 - $7.90
Q2 2013	283,765	$7,352	$6.58	$6.07 - $7.05