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Detailed Insider History for:
BERKLEY W R CORP: WRB
Price: 1/23/26 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
$67.12 $78.96 $57.75 $25,507 380 3,049 0.5% 5.9% 81.70% 25.73%
Exch Sector Industry Sub-Industry
NYSE Finance, Insurance, And Real Estate Insurance Carriers Fire, Marine & Casualty Insurance
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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
    
 
MITSUI SUMITOMO INSURANCE CO LTD
BO
AB
$69,297,688
1,028,931
1/26/26
1/28/26
$65.86
$67.89
55,618,436
1.9
D
10b
1/28/26 - 8:30:13 pm
2
    
 
MITSUI SUMITOMO INSURANCE CO LTD
BO
AB
$46,898,492
698,000
1/22/26
1/23/26
$66.77
$67.18
54,589,504
1.3
D
10b
1/23/26 - 7:30:03 pm
3
    
 
MITSUI SUMITOMO INSURANCE CO LTD
BO
AB
$42,612,020
630,000
1/20/26
1/21/26
$66.95
$67.60
53,891,504
1.2
D
10b
1/21/26 - 7:30:03 pm
4
    
 
MITSUI SUMITOMO INSURANCE CO LTD
BO
AB
$20,228,308
293,691
1/15/26
1/16/26
$68.67
$68.79
53,261,504
0.6
D
10b
1/16/26 - 7:00:49 pm
5
    
 
MITSUI SUMITOMO INSURANCE CO LTD
BO
AB
$16,416,493
241,309
---
1/16/26
---
$68.03
53,202,812
0.5
D
10b
1/16/26 - 7:00:49 pm
6
    
 
MITSUI SUMITOMO INSURANCE CO LTD
BO
AB
$55,622,808
811,041
1/12/26
1/14/26
$67.82
$69.23
52,726,504
1.6
D
10b
1/14/26 - 9:36:18 pm
7
    
 
MITSUI SUMITOMO INSURANCE CO LTD
BO
AB
$7,922,638
113,824
---
1/9/26
$69.56
$70.12
51,915,464
0.2
D
10b
1/9/26 - 8:00:04 pm
8
    
 
MITSUI SUMITOMO INSURANCE CO LTD
BO
AB
$24,718,246
356,176
1/8/26
1/9/26
---
$68.48
51,801,640
0.7
D
10b
1/9/26 - 8:00:04 pm
9
    
 
MITSUI SUMITOMO INSURANCE CO LTD
BO
AB
$26,029,678
377,553
1/6/26
1/7/26
---
$68.47
51,435,084
0.7
D
10b
1/7/26 - 7:30:04 pm
10
    
 
MITSUI SUMITOMO INSURANCE CO LTD
BO
AB
$21,386,570
303,665
1/5/26
1/7/26
---
$69.20
51,445,464
0.6
D
10b
1/7/26 - 7:30:04 pm
11
    
 
MITSUI SUMITOMO INSURANCE CO LTD
BO
AB
$47,167,124
672,734
12/30/25
1/2/26
---
$69.35
50,764,244
1.3
D
10b
1/2/26 - 7:00:04 pm
12
    
 
MITSUI SUMITOMO INSURANCE CO LTD
BO
AB
$42,548,372
610,350
12/18/25
12/22/25
$69.38
$70.33
49,211,936
1.3
D
10b
12/22/25 - 8:45:03 pm
13
    
 
SHIEL JAMES G
VP
JS
---
1,250
---
12/18/25
---
---
797,197
-0.2
D
R
12/19/25 - 5:27:37 pm
14
    
 
MITSUI SUMITOMO INSURANCE CO LTD
BO
3
---
---
---
12/4/25
---
---
48,601,588
---
D
---
12/11/25 - 5:05:50 pm
15
    
 
SHIEL JAMES G
VP
JS
$52,999
744
---
8/15/25
---
$71.23
798,447
-0.1
D
R
8/19/25 - 6:32:16 pm
16
    
 
SHIEL JAMES G
VP
JB
---
16,126
---
8/15/25
---
---
799,191
2.1
D
R
8/19/25 - 6:32:16 pm
17
    
 
SGAGLIONE LUCILLE T
VP
JS
$51,076
717
---
8/15/25
---
$71.23
241,036
-0.3
D
R
8/19/25 - 6:31:59 pm
18
    
 
SGAGLIONE LUCILLE T
VP
JB
---
16,126
---
8/15/25
---
---
241,753
7.1
D
R
8/19/25 - 6:31:59 pm
19
    
 
WELT PHILIP S
VP,SEC
JS
$48,297
678
---
8/15/25
---
$71.23
200,539
-0.3
D
R
8/19/25 - 6:31:15 pm
20
    
 
WELT PHILIP S
VP,SEC
JB
---
16,126
---
8/15/25
---
---
201,217
8.7
D
R
8/19/25 - 6:31:15 pm
21
    
 
BAIO RICHARD MARK
VP,CFO
JS
$52,999
744
---
8/15/25
---
$71.23
214,175
-0.3
D
R
8/19/25 - 6:30:58 pm
22
    
 
BAIO RICHARD MARK
VP,CFO
JB
---
16,126
---
8/15/25
---
---
214,919
8.1
D
R
8/19/25 - 6:30:58 pm
23
    
 
BERKLEY WILLIAM R JR
PR,CEO,DIR
JS
$334,520
4,696
---
8/15/25
---
$71.23
4,552,770
-0.1
D
R
8/19/25 - 6:29:54 pm
24
    
 
BERKLEY WILLIAM R JR
PR,CEO,DIR
JB
---
111,869
---
8/15/25
---
---
4,557,466
2.5
D
R
8/19/25 - 6:29:54 pm
25
    
 
BERKLEY WILLIAM R
CB,DIR,BO
JS
$304,672
4,277
---
8/15/25
---
$71.23
17,363,284
-0.0
D
R
8/19/25 - 6:29:28 pm
26
    
 
BERKLEY WILLIAM R
CB,DIR,BO
JB
---
111,869
---
8/15/25
---
---
17,367,562
0.6
D
R
8/19/25 - 6:29:28 pm
27
    
 
BERKLEY WILLIAM R
CB,DIR,BO
JB
---
2,776
---
6/11/25
---
---
17,255,692
0.0
D
R
6/13/25 - 5:05:27 pm
28
    
 
MOSLEY DANIEL LYNN
DIR
JB
---
2,776
---
6/11/25
---
---
11,795
30.8
D
---
6/13/25 - 5:05:06 pm
29
    
 
MATTSON MARIE ANGELA
DIR
JB
---
2,776
---
6/11/25
---
---
6,577
73.0
D
---
6/13/25 - 5:04:49 pm
30
    
 
FERRE MARIA LUISA
DIR
JB
---
2,776
---
6/11/25
---
---
56,144
5.2
D
---
6/13/25 - 5:04:32 pm
31
    
 
TALISMAN JONATHAN
DIR
JB
---
2,776
---
6/11/25
---
---
30,090
10.2
D
---
6/13/25 - 5:04:06 pm
32
    
 
FARRELL MARY C
DIR
JB
---
2,776
---
6/11/25
---
---
16,288
20.5
D
---
6/13/25 - 5:03:41 pm
33
    
 
BERKLEY WILLIAM R JR
PR,CEO,DIR
JB
---
2,776
---
6/11/25
---
---
4,445,597
0.1
D
R
6/13/25 - 5:03:18 pm
34
    
 
BLAYLOCK RONALD E
DIR
JB
---
2,776
---
6/11/25
---
---
118,900
2.4
D
---
6/13/25 - 5:02:58 pm
35
    
 
AUGOSTINI CHRISTOPHER L
DIR
JB
---
2,776
---
6/11/25
---
---
106,769
2.7
D
---
6/13/25 - 5:02:41 pm
36
    
 
RUSBULDT ROBERT ALAN
DIR
JB
---
2,776
---
6/11/25
---
---
2,776
New
D
---
6/13/25 - 5:02:10 pm
37
    
 
RUSBULDT ROBERT ALAN
DIR
3
---
---
---
6/11/25
---
---
---
---
D
---
6/13/25 - 5:00:47 pm
38
    
 
SHIEL JAMES G
VP
JS
---
208,000
---
1/8/25
---
---
783,065
-21.0
D
R
1/10/25 - 4:33:12 pm
39
    
 
SHIEL JAMES G
VP
JS
---
1,500
---
12/26/24
---
---
991,065
-0.2
D
R
12/27/24 - 4:53:38 pm
40
    
 
SHIEL JAMES G
VP
JS
$46,547
806
---
8/15/24
---
$57.75
992,565
-0.1
D
R
8/19/24 - 6:21:03 pm
41
    
 
SHIEL JAMES G
VP
JB
---
17,473
---
8/15/24
---
---
993,371
1.8
D
R
8/19/24 - 6:21:03 pm
42
    
 
SGAGLIONE LUCILLE T
VP
JS
$44,814
776
---
8/15/24
---
$57.75
225,627
-0.3
D
R
8/19/24 - 6:20:39 pm
43
    
 
SGAGLIONE LUCILLE T
VP
JB
---
17,473
---
8/15/24
---
---
226,403
8.4
D
R
8/19/24 - 6:20:39 pm
44
    
 
BAIO RICHARD MARK
VP,CFO
JS
$46,547
806
---
8/15/24
---
$57.75
198,793
-0.4
D
R
8/19/24 - 6:20:04 pm
45
    
 
BAIO RICHARD MARK
VP,CFO
JB
---
17,473
---
8/15/24
---
---
199,599
9.6
D
R
8/19/24 - 6:20:04 pm
46
    
 
WELT PHILIP S
VP,SEC
JS
$42,446
735
---
8/15/24
---
$57.75
185,091
-0.4
D
R
8/19/24 - 6:19:37 pm
47
    
 
WELT PHILIP S
VP,SEC
JB
---
17,473
---
8/15/24
---
---
185,826
10.4
D
R
8/19/24 - 6:19:37 pm
48
    
 
BERKLEY WILLIAM R JR
PR,CEO,DIR
JS
$291,926
5,055
---
8/15/24
---
$57.75
4,442,821
-0.1
D
R
8/19/24 - 6:19:12 pm
49
    
 
BERKLEY WILLIAM R JR
PR,CEO,DIR
JB
---
120,430
---
8/15/24
---
---
4,447,876
2.8
D
R
8/19/24 - 6:19:12 pm
50
    
 
BERKLEY WILLIAM R
CB,DIR,BO
JS
$265,881
4,604
---
8/15/24
---
$57.75
17,252,916
-0.0
D
R
8/19/24 - 6:18:44 pm
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