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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:
WHITE MOUNTAINS INSURANCE GROUP LTD: WTM
Price: 5/22/26 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
$2,146.85 $2,333.00 $1,648.00 $5,317 3 19 0.1% 3.3% 93.99% 3.09%
Exch Sector Industry Sub-Industry
NYSE Finance, Insurance, And Real Estate Insurance Carriers Fire, Marine & Casualty Insurance
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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
    
 
TANNER DAVID ALLEN
DIR
JB
---
135
---
5/21/26
---
---
2,014
7.2
D
---
5/22/26 - 10:35:21 am
2
    
 
SHANK SUZANNE F
DIR
JB
---
135
---
5/21/26
---
---
1,006
15.5
D
---
5/22/26 - 10:35:04 am
3
    
 
HICKS WESTON M
DIR
JB
---
190
---
5/21/26
---
---
2,936
6.9
D
---
5/22/26 - 10:34:37 am
4
    
 
GELSTON PHILIP A
DIR
JB
---
135
---
5/21/26
---
---
1,703
8.6
D
---
5/22/26 - 10:34:10 am
5
    
 
DILLON MARGARET
DIR
JB
---
135
---
5/21/26
---
---
1,080
14.3
D
---
5/22/26 - 10:33:35 am
6
    
 
CHU JOHN
DIR
JB
---
135
---
5/21/26
---
---
335
67.5
D
---
5/22/26 - 10:32:56 am
7
    
 
CHU JOHN
DIR
3
---
---
---
5/21/26
---
---
200
---
D
---
5/22/26 - 10:32:35 am
8
    
 
CHOKSI MARY C
DIR
JB
---
135
---
5/21/26
---
---
1,993
7.3
D
---
5/22/26 - 10:32:14 am
9
    
 
CARLSON PETER M
DIR
JB
---
135
---
5/21/26
---
---
852
18.8
D
---
5/22/26 - 10:31:46 am
10
    
 
CAMPBELL REID TARLTON
DIR
JB
---
135
---
5/21/26
---
---
10,575
1.3
D
---
5/22/26 - 10:30:51 am
11
    
 
SEELIG ROBERT LAWRENCE
VP,GC
JS
---
50
---
3/19/26
---
---
17,857
-0.3
D
---
3/20/26 - 2:51:41 pm
12
    
 
TANNER DAVID ALLEN
DIR
JS
---
225
---
3/4/26
---
---
1,879
-10.7
D
---
3/5/26 - 10:21:50 am
13
    
 
CAFFREY LIAM P
CEO,DIR
JB
---
1,500
---
2/25/26
---
---
3,650
69.8
D
R
2/27/26 - 11:19:11 am
14
    
 
HARRISON GILES E
PR
JB
---
775
---
2/25/26
---
---
2,675
40.8
D
R
2/27/26 - 11:18:46 am
15
    
 
HILDRETH MICHAELA
CAO
JB
---
600
---
2/25/26
---
---
1,825
49.0
D
R
2/27/26 - 11:18:22 am
16
    
 
PAPAMICHAEL MICHAEL A
CFO
JB
---
500
---
2/25/26
---
---
1,200
71.4
D
R
2/27/26 - 11:17:59 am
17
    
 
SEELIG ROBERT LAWRENCE
VP,GC
JB
---
775
---
2/25/26
---
---
2,500
44.9
D
R
2/27/26 - 11:17:30 am
18
    
 
HILDRETH MICHAELA
CAO
JS
$569,380
274
---
1/1/26
---
$2,078.03
2,491
-9.9
D
R
1/5/26 - 9:09:25 am
19
    
 
PAPAMICHAEL MICHAEL A
CFO
JS
$272,222
131
---
1/1/26
---
$2,078.03
772
-14.5
D
R
1/2/26 - 9:28:22 pm
20
    
 
PAPAMICHAEL MICHAEL A
CFO
3
---
---
---
1/1/26
---
---
503
---
D
---
1/2/26 - 9:26:25 pm
21
    
 
PAPAMICHAEL MICHAEL A
CFO
3
---
---
---
1/1/26
---
---
12
---
I
---
1/2/26 - 9:26:25 pm
22
    
 
PAPAMICHAEL MICHAEL A
CFO
3
---
---
---
1/1/26
---
---
1,100
---
D
---
1/2/26 - 9:26:25 pm
23
    
 
SEELIG ROBERT LAWRENCE
VP,GC
JS
$827,056
398
---
1/1/26
---
$2,078.03
17,907
-2.2
D
R
1/2/26 - 6:04:43 pm
24
    
 
CAFFREY LIAM P
CEO
JS
$883,163
425
---
1/1/26
---
$2,078.03
1,655
-20.4
D
R
1/2/26 - 6:02:48 pm
25
    
 
HILDRETH MICHAELA
CAO
JS
---
60
---
12/23/25
---
---
2,165
-2.7
D
---
12/23/25 - 1:55:23 pm
26
1y
6
17%
11%
1
CAMPBELL REID TARLTON
DIR
S
$10,250,000
5,000
---
12/19/25
---
$2,050.00
10,440
-32.4
D
A
12/22/25 - 4:51:07 pm
27
    
 
CAMPBELL REID TARLTON
DIR
JS
---
5,000
---
12/19/25
---
---
10,440
-32.4
D
---
12/22/25 - 10:14:24 am
28
1y
2
0%
18%
1
ROUNTREE GEORGE MANNING
CEO,DIR
S
$10,250,000
5,000
---
12/19/25
---
$2,050.00
13,809
-26.6
D
---
12/22/25 - 10:13:58 am
29
    
 
GELSTON PHILIP A
DIR
S
$338,004
165
---
12/16/25
---
$2,048.51
1,568
-9.5
D
---
12/16/25 - 8:41:57 pm
30
    
 
CAMPBELL REID TARLTON
DIR
JS
---
50
---
11/25/25
---
---
15,440
-0.3
D
---
11/26/25 - 10:25:35 am
31
    
 
TANNER DAVID ALLEN
DIR
JS
---
4
---
11/10/25
---
---
2,104
-0.2
D
---
11/10/25 - 3:30:29 pm
32
    
 
SHANK SUZANNE F
DIR
JB
---
150
---
5/22/25
---
---
871
20.8
D
---
5/27/25 - 9:59:16 am
33
    
 
YI STEVEN
DIR
JB
---
150
---
5/22/25
---
---
525
40.0
D
---
5/23/25 - 7:12:17 pm
34
    
 
TANNER DAVID ALLEN
DIR
JB
---
150
---
5/22/25
---
---
2,108
7.7
D
---
5/23/25 - 7:11:56 pm
35
    
 
HICKS WESTON M
DIR
JB
---
210
---
5/22/25
---
---
2,746
8.3
D
---
5/23/25 - 7:10:50 pm
36
    
 
GELSTON PHILIP A
DIR
JB
---
150
---
5/22/25
---
---
1,733
9.5
D
---
5/23/25 - 7:10:23 pm
37
    
 
DILLON MARGARET
DIR
JB
---
150
---
5/22/25
---
---
945
18.9
D
---
5/23/25 - 7:10:03 pm
38
    
 
CHOKSI MARY C
DIR
JB
---
150
---
5/22/25
---
---
1,858
8.8
D
---
5/23/25 - 7:09:43 pm
39
    
 
CARLSON PETER M
DIR
JB
---
150
---
5/22/25
---
---
717
26.5
D
---
5/23/25 - 7:09:16 pm
40
    
 
CAMPBELL REID TARLTON
DIR
JB
---
150
---
5/22/25
---
---
15,490
1.0
D
---
5/23/25 - 7:08:57 pm
41
    
 
ROUNTREE GEORGE MANNING
CEO,DIR
JB
---
1,625
---
2/26/25
---
---
5,425
42.8
D
R
2/28/25 - 9:33:17 am
42
    
 
CAFFREY LIAM P
VP,CFO
JB
---
1,025
---
2/26/25
---
---
3,400
43.2
D
R
2/28/25 - 9:32:32 am
43
    
 
HARRISON GILES E
VP
JB
---
900
---
2/26/25
---
---
1,900
90.0
D
R
2/28/25 - 9:31:37 am
44
    
 
SEELIG ROBERT LAWRENCE
VP,GC
JB
---
825
---
2/26/25
---
---
2,725
43.4
D
R
2/28/25 - 9:23:40 am
45
    
 
HILDRETH MICHAELA
CAO
JB
---
625
---
2/26/25
---
---
1,825
52.1
D
R
2/28/25 - 9:23:02 am
46
    
 
ROUNTREE GEORGE MANNING
CEO,DIR
JS
$2,075,379
1,067
---
1/1/25
---
$1,945.06
18,809
-5.4
D
R
1/3/25 - 9:23:04 am
47
    
 
CAFFREY LIAM P
PR,CFO
JS
$816,925
420
---
1/1/25
---
$1,945.06
830
-33.6
D
R
1/3/25 - 9:22:26 am
48
    
 
SEELIG ROBERT LAWRENCE
VP,GC
JS
$964,750
496
---
1/1/25
---
$1,945.06
17,305
-2.8
D
R
1/3/25 - 9:21:46 am
49
    
 
HILDRETH MICHAELA
CAO
JS
$628,254
323
---
1/1/25
---
$1,945.06
2,225
-12.7
D
R
1/3/25 - 9:21:08 am
50
    
 
HILDRETH MICHAELA
CAO
JS
---
75
---
11/29/24
---
---
1,798
-4.0
D
---
12/2/24 - 4:05:11 pm
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