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 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
MDU RESOURCES GROUP INC: MDU
Price: 2/20/26 52-Wk
High		 52-Wk
Low		 Mkt Cap (mm) Shrs Out (mm) 3-Mth Ave
Vol (m)		 Ind. Yield Short Int
% Float		 Inst. Owned Insider Owned
$20.23 $21.49 $15.04 $4,371 216 2,238 2.7% 7.3% 97.77% 0.94%
Exch Sector Industry Sub-Industry
NYSE Mining Mining And Quarrying Of Nonmetallic Minerals, Except Fuels Mining & Quarryingof Nonmetallic Minerals (No Fuels)
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#
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Insider Statistics
T N H M S
Filer Name
Insider Title
Trans Type
Dollar Value
Shares Traded
Trans Date From
Trans Date To
Trans Price From
Trans Price To
Total Holdings
Delta % Owned
Owned
Other Info
Input Date
1
    
 
VOLLMER JASON L
CFO
JS
$748,556
36,766
---
2/18/26
---
$20.36
324,976
-10.2
D
R
2/19/26 - 6:22:34 pm
2
    
 
SIEVERT STEPHANIE A
O
JS
$212,518
10,438
---
2/18/26
---
$20.36
90,503
-10.3
D
R
2/19/26 - 6:22:32 pm
3
    
 
SENGER GARRET
O
JS
$166,280
8,167
---
2/18/26
---
$20.36
100,048
-7.5
D
R
2/19/26 - 6:22:31 pm
4
    
 
KIVISTO NICOLE A
PR,CEO,DIR
JS
$726,201
35,668
---
2/18/26
---
$20.36
547,962
-6.1
D
R
2/19/26 - 6:22:29 pm
5
    
 
JONES ANNE M
O
JS
$244,524
12,010
---
2/18/26
---
$20.36
118,017
-9.2
D
R
2/19/26 - 6:22:28 pm
6
    
 
JOHNSON ROB L
PR
JS
$216,427
10,630
---
2/18/26
---
$20.36
82,665
-11.4
D
R
2/19/26 - 6:22:26 pm
7
    
 
VOLLMER JASON L
CFO
JB
---
15,229
---
2/17/26
---
---
361,742
4.4
D
R
2/19/26 - 6:22:34 pm
8
    
 
FOTI ANTHONY DONALD
LO,SEC
JB
---
8,161
---
2/17/26
---
---
16,634
96.3
D
R
2/19/26 - 6:22:33 pm
9
    
 
SIEVERT STEPHANIE A
O
JB
---
4,544
---
2/17/26
---
---
100,941
4.7
D
R
2/19/26 - 6:22:32 pm
10
    
 
SENGER GARRET
O
JB
---
6,920
---
2/17/26
---
---
108,215
6.8
D
R
2/19/26 - 6:22:31 pm
11
    
 
BOESE DYKE A
CIO
JB
---
3,702
---
2/17/26
---
---
7,084
109.5
D
R
2/19/26 - 6:22:31 pm
12
    
 
KIVISTO NICOLE A
PR,CEO,DIR
JB
---
45,037
---
2/17/26
---
---
583,630
8.4
D
R
2/19/26 - 6:22:29 pm
13
    
 
JONES ANNE M
O
JB
---
5,523
---
2/17/26
---
---
130,027
4.4
D
R
2/19/26 - 6:22:28 pm
14
    
 
JOHNSON ROB L
PR
JB
---
5,830
---
2/17/26
---
---
93,295
6.7
D
R
2/19/26 - 6:22:26 pm
15
    
 
KELLEY CHARLES M
DIR
B
$104,225
5,000
---
2/13/26
---
$20.84
8,031
165.0
D
---
2/17/26 - 4:44:04 pm
16
    
 
DURKIN MARIAN M
DIR
JB
---
164
---
12/31/25
---
---
11,367
1.5
D
---
1/2/26 - 4:46:00 pm
17
    
 
DOSCH VERNON A
DIR
JB
---
1,394
---
12/31/25
---
---
16,130
9.5
D
---
1/2/26 - 4:45:58 pm
18
    
 
PATEL PRITI RASHMIKANT
DIR
JB
---
4,849
---
11/13/25
---
---
4,849
New
D
---
11/14/25 - 5:06:36 pm
19
    
 
MILLER TAMMY J
DIR
JB
---
3,031
---
11/13/25
---
---
6,031
101.0
D
---
11/14/25 - 5:06:35 pm
20
    
 
KELLEY CHARLES M
DIR
JB
---
3,031
---
11/13/25
---
---
3,031
New
D
---
11/14/25 - 5:06:33 pm
21
    
 
DURKIN MARIAN M
DIR
JB
---
7,274
---
11/13/25
---
---
11,203
185.1
D
---
11/14/25 - 5:06:31 pm
22
    
 
JOHNSON DENNIS W
DIR
JB
---
7,779
---
11/13/25
---
---
187,945
4.3
D
---
11/14/25 - 5:06:31 pm
23
    
 
JAEGER DOUGLAS W
DIR
JB
---
7,274
---
11/13/25
---
---
12,726
133.4
D
---
11/14/25 - 5:06:30 pm
24
    
 
ANDERSON DARREL T
DIR
JB
---
8,082
---
11/13/25
---
---
17,594
85.0
D
---
11/14/25 - 5:06:29 pm
25
    
 
DOSCH VERNON A
DIR
JB
---
7,274
---
11/13/25
---
---
14,736
97.5
D
---
11/14/25 - 5:06:28 pm
26
    
 
DURKIN MARIAN M
DIR
JB
---
182
---
9/30/25
---
---
3,929
4.9
D
---
10/1/25 - 6:13:38 pm
27
    
 
DOSCH VERNON A
DIR
JB
---
1,541
---
9/30/25
---
---
7,462
26.0
D
---
10/1/25 - 6:13:37 pm
28
1y
3
100%
33%
1
VOLLMER JASON L
CFO
B
$80,375
5,000
---
9/8/25
---
$16.07
344,548
1.5
D
---
9/9/25 - 5:39:25 pm
29
1y
3
100%
33%
1
VOLLMER JASON L
CFO
B
$81,375
5,000
---
8/19/25
---
$16.27
339,548
1.5
D
---
8/19/25 - 4:35:48 pm
30
    
 
MILLER TAMMY J
DIR
3
---
---
---
8/12/25
---
---
3,000
---
D
---
8/14/25 - 5:15:23 pm
31
    
 
KELLEY CHARLES M
DIR
3
---
---
---
8/12/25
---
---
---
---
---
---
8/14/25 - 5:15:22 pm
32
    
 
DOSCH VERNON A
DIR
JB
---
1,658
---
6/30/25
---
---
5,921
38.9
D
---
7/1/25 - 4:54:52 pm
33
    
 
DURKIN MARIAN M
DIR
JB
---
175
---
6/30/25
---
---
3,747
4.9
D
---
7/1/25 - 4:54:51 pm
34
    
 
BOESE DYKE A
CIO
JB
$131,650
7,749
---
5/15/25
---
$16.99
17,274
81.3
I
---
7/16/25 - 4:48:32 pm
35
    
 
PATEL PRITI RASHMIKANT
DIR
3
---
---
---
5/13/25
---
---
---
---
---
---
5/19/25 - 5:18:17 pm
36
    
 
DURKIN MARIAN M
DIR
JB
---
165
---
3/31/25
---
---
3,572
4.8
D
---
4/1/25 - 5:25:25 pm
37
    
 
DOSCH VERNON A
DIR
JB
---
1,650
---
3/31/25
---
---
4,263
63.1
D
---
4/1/25 - 5:24:23 pm
38
    
 
VOLLMER JASON L
CFO
JS
$512,120
30,429
---
2/12/25
---
$16.83
332,689
-8.4
D
R
2/14/25 - 4:50:53 pm
39
    
 
VOLLMER JASON L
CFO
JB
---
16,700
---
2/12/25
---
---
363,118
4.8
D
R
2/14/25 - 4:50:53 pm
40
    
 
SIEVERT STEPHANIE A
O
JS
$159,986
9,506
---
2/12/25
---
$16.83
96,333
-9.0
D
R
2/14/25 - 4:50:52 pm
41
    
 
SIEVERT STEPHANIE A
O
JB
---
4,974
---
2/12/25
---
---
105,839
4.9
D
R
2/14/25 - 4:50:52 pm
42
    
 
SENGER GARRET
O
JS
$125,720
7,470
---
2/12/25
---
$16.83
101,295
-6.9
D
R
2/14/25 - 4:50:50 pm
43
    
 
SENGER GARRET
O
JB
---
7,514
---
2/12/25
---
---
108,765
7.4
D
R
2/14/25 - 4:50:50 pm
44
    
 
KIVISTO NICOLE A
PR,CEO,DIR
JS
$510,218
30,316
---
2/12/25
---
$16.83
538,093
-5.3
D
R
2/14/25 - 4:50:48 pm
45
    
 
KIVISTO NICOLE A
PR,CEO,DIR
JB
---
45,969
---
2/12/25
---
---
568,409
8.8
D
R
2/14/25 - 4:50:48 pm
46
    
 
JONES ANNE M
O
JS
$181,394
10,778
---
2/12/25
---
$16.83
124,504
-8.0
D
R
2/14/25 - 4:50:47 pm
47
    
 
JONES ANNE M
O
JB
---
6,026
---
2/12/25
---
---
135,282
4.7
D
R
2/14/25 - 4:50:47 pm
48
    
 
JOHNSON ROB L
PR
JS
$114,074
6,778
---
2/12/25
---
$16.83
87,465
-7.2
D
R
2/14/25 - 4:50:45 pm
49
    
 
JOHNSON ROB L
PR
JB
---
5,785
---
2/12/25
---
---
94,243
6.5
D
R
2/14/25 - 4:50:45 pm
50
    
 
FOTI ANTHONY DONALD
LO,SEC
JB
---
8,473
---
2/12/25
---
---
8,473
New
D
R
2/14/25 - 4:50:43 pm
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