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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:
KNIFE RIVER CORP: KNF
Price: 3/7/25 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
$88.09 $108.83 $66.13 $4,987 57 473 0.0% 4.2% 89.69% 0.90%
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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
    
 
GRAY BRIAN R
PR,CEO,DIR
JB
---
12,599
---
2/28/25
---
---
93,436
15.6
D
R
3/3/25 - 5:29:00 pm
2
    
 
HASTINGS TREVOR J
VP,COO
JS
$380,436
4,016
---
2/27/25
---
$94.73
48,109
-7.7
D
R
3/3/25 - 5:26:50 pm
3
    
 
HASTINGS TREVOR J
VP,COO
JB
---
3,114
---
2/27/25
---
---
52,125
6.4
D
R
3/3/25 - 5:26:50 pm
4
    
 
LIEPITZ KARL A
VP,LO,SEC
JS
$670,973
7,083
---
2/27/25
---
$94.73
48,349
-12.8
D
R
3/3/25 - 5:25:47 pm
5
    
 
LIEPITZ KARL A
VP,LO,SEC
JB
---
2,770
---
2/27/25
---
---
55,432
5.3
D
R
3/3/25 - 5:25:47 pm
6
    
 
PLADSEN GLENN R
VP
JS
$122,391
1,292
---
2/27/25
---
$94.73
22,098
-5.5
D
R
3/3/25 - 5:25:44 pm
7
    
 
PLADSEN GLENN R
VP
JB
---
1,786
---
2/27/25
---
---
23,390
8.3
D
R
3/3/25 - 5:25:44 pm
8
    
 
RING NATHAN W
VP,CFO
JS
$160,852
1,698
---
2/27/25
---
$94.73
31,577
-5.1
D
R
3/3/25 - 5:21:25 pm
9
    
 
RING NATHAN W
VP,CFO
JB
---
3,114
---
2/27/25
---
---
33,275
10.3
D
R
3/3/25 - 5:21:25 pm
10
    
 
KADRMAS MARNEY L
VP,CAO
JB
---
709
---
2/27/25
---
---
4,950
16.7
D
R
3/3/25 - 5:20:20 pm
11
    
 
CHRISTENSON NANCY K
VP
JS
$149,958
1,583
---
2/27/25
---
$94.73
25,776
-5.8
D
---
3/3/25 - 5:18:10 pm
12
    
 
CHIODO PATRICIA
DIR
JB
---
1,962
---
6/27/24
---
---
1,962
New
D
R
6/28/24 - 5:15:09 pm
13
    
 
CHIODO PATRICIA
DIR
3
---
---
---
6/27/24
---
---
---
---
---
---
6/27/24 - 5:29:19 pm
14
    
 
SANDBROOK WILLIAM J
DIR
JB
$55,577
2,625
---
5/15/24
---
$77.19
4,144
172.8
D
R
5/16/24 - 6:26:15 pm
15
    
 
MOSS PATRICIA L
DIR
JB
$55,577
2,625
---
5/15/24
---
$77.19
28,283
10.2
D
R
5/16/24 - 6:25:10 pm
16
    
 
HILL THOMAS W
DIR
JB
---
1,905
---
5/15/24
---
---
1,905
New
D
R
5/16/24 - 6:24:02 pm
17
    
 
FAGG KAREN B
DIR
JB
$64,917
3,063
---
5/15/24
---
$77.19
29,127
11.8
D
R
5/16/24 - 6:20:34 pm
18
    
 
CARMONA ALVAREZ GERMAN
DIR
JB
$55,577
2,625
---
5/15/24
---
$77.19
5,434
93.4
D
R
5/16/24 - 6:18:23 pm
19
    
 
HILL THOMAS W
DIR
3
---
---
---
5/14/24
---
---
---
---
---
---
5/15/24 - 6:22:44 pm
20
1y
1
100%
16%
1
GRAY BRIAN R
PR,CEO,DIR
B
$74
1
---
2/29/24
---
$73.65
8,167
0.0
I
---
3/4/24 - 6:12:10 pm
21
    
 
RING NATHAN W
VP,CFO
JS
$109,405
1,508
---
2/22/24
---
$72.55
30,160
-4.8
D
R
2/26/24 - 4:32:40 pm
22
    
 
RING NATHAN W
VP,CFO
JB
---
4,805
---
2/22/24
---
---
31,668
17.9
D
R
2/26/24 - 4:32:40 pm
23
    
 
PLADSEN GLENN R
VP
JS
$68,270
941
---
2/22/24
---
$72.55
21,604
-4.2
D
R
2/26/24 - 4:31:26 pm
24
    
 
PLADSEN GLENN R
VP
JB
---
2,153
---
2/22/24
---
---
22,545
10.6
D
R
2/26/24 - 4:31:26 pm
25
    
 
LIEPITZ KARL A
VP,LO,SEC
JS
$380,380
5,243
---
2/22/24
---
$72.55
52,661
-9.1
D
R
2/26/24 - 4:24:29 pm
26
    
 
LIEPITZ KARL A
VP,LO,SEC
JB
---
4,348
---
2/22/24
---
---
57,904
8.1
D
R
2/26/24 - 4:24:29 pm
27
    
 
KADRMAS MARNEY L
CAO
JB
---
1,050
---
2/22/24
---
---
4,241
32.9
D
R
2/26/24 - 4:21:32 pm
28
    
 
GRAY BRIAN R
PR,CEO,DIR
JB
---
17,769
---
2/22/24
---
---
80,837
28.2
D
R
2/26/24 - 4:21:17 pm
29
    
 
HASTINGS TREVOR J
VP,COO
JS
$237,964
3,280
---
2/22/24
---
$72.55
49,010
-6.3
D
R
2/26/24 - 4:18:30 pm
30
    
 
HASTINGS TREVOR J
VP,COO
JB
---
4,805
---
2/22/24
---
---
52,290
10.1
D
R
2/26/24 - 4:18:30 pm
31
    
 
CHRISTENSON NANCY K
VP
JS
$100,119
1,380
---
2/22/24
---
$72.55
27,359
-4.8
D
R
2/26/24 - 4:17:13 pm
32
    
 
CHRISTENSON NANCY K
VP
JB
---
2,153
---
2/22/24
---
---
28,739
8.1
D
R
2/26/24 - 4:17:13 pm
33
    
 
SANDBROOK WILLIAM J
DIR
JB
$87,449
1,519
---
11/15/23
---
$57.57
1,519
New
D
---
11/16/23 - 5:25:27 pm
34
    
 
MOSS PATRICIA L
DIR
JB
$149,970
2,605
---
11/15/23
---
$57.57
25,658
11.3
D
---
11/16/23 - 5:24:20 pm
35
    
 
FAGG KAREN B
DIR
JB
$164,535
2,858
---
11/15/23
---
$57.57
26,064
12.3
D
---
11/16/23 - 5:24:14 pm
36
    
 
EVERIST THOMAS S
DIR
JB
$149,970
2,605
---
11/15/23
---
$57.57
30,260
9.4
D
---
11/16/23 - 5:23:06 pm
37
    
 
CARMONA ALVAREZ GERMAN
DIR
JB
$149,970
2,605
---
11/15/23
---
$57.57
2,809
1,277.0
D
---
11/16/23 - 5:23:05 pm
38
    
 
MDU RESOURCES GROUP INC
BO
JS
---
5,656,621
---
11/10/23
---
---
---
All
D
---
11/13/23 - 11:42:35 am
39
    
 
RING NATHAN W
VP,CFO
JB
---
10,983
---
7/12/23
---
---
26,863
69.2
D
R
7/13/23 - 5:21:53 pm
40
    
 
PLADSEN GLENN R
VP
JB
---
4,398
---
7/12/23
---
---
20,392
27.5
D
R
7/13/23 - 5:20:47 pm
41
    
 
KADRMAS MARNEY L
CAO
JB
---
3,191
---
7/12/23
---
---
3,191
New
D
R
7/13/23 - 5:19:46 pm
42
    
 
HASTINGS TREVOR J
VP,COO
JB
---
7,236
---
7/12/23
---
---
47,485
18.0
D
R
7/13/23 - 5:19:44 pm
43
    
 
GRAY BRIAN R
PR,CEO,DIR
JB
---
41,696
---
7/12/23
---
---
63,051
195.3
D
R
7/13/23 - 5:19:40 pm
44
    
 
CHRISTENSON NANCY K
VP
JB
---
4,146
---
7/12/23
---
---
26,586
18.5
D
R
7/13/23 - 5:18:30 pm
45
    
 
MDU RESOURCES GROUP INC
BO
JS
---
51,340,728
---
5/31/23
---
---
5,656,621
-90.1
D
---
6/2/23 - 6:26:34 pm
46
    
 
QUADE JOHN F
VP,BD
3
---
---
---
5/31/23
---
---
---
---
---
---
6/1/23 - 6:44:55 pm
47
    
 
PLADSEN GLENN R
VP
3
---
---
---
5/31/23
---
---
---
---
---
---
6/1/23 - 6:43:44 pm
48
    
 
KADRMAS MARNEY L
CAO
3
---
---
---
5/31/23
---
---
---
---
---
---
6/1/23 - 6:43:43 pm
49
    
 
HASTINGS TREVOR J
VP,COO
3
---
---
---
5/31/23
---
---
---
---
---
---
6/1/23 - 6:42:34 pm
50
    
 
SANDBROOK WILLIAM J
DIR
3
---
---
---
5/31/23
---
---
---
---
---
---
6/1/23 - 6:42:30 pm
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