Form 8-K - Current report:
SEC Accession No. 0000776867-20-000032
Filing Date
2020-10-01
Accepted
2020-10-01 09:58:19
Documents
157
Period of Report
2020-10-01
Items
Item 1.01: Entry into a Material Definitive Agreement
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq Description Document Type Size
1 8-K wtm-20201001.htm   iXBRL 8-K 64961
2 EX-2.1 wtm21exhibit.htm EX-2.1 196978
3 EX-2.2 wtm22exhibit.htm EX-2.2 200742
9 GRAPHIC wtm21exhibit001.jpg GRAPHIC 51967
10 GRAPHIC wtm21exhibit002.jpg GRAPHIC 110606
11 GRAPHIC wtm21exhibit003.jpg GRAPHIC 28093
12 GRAPHIC wtm21exhibit004.jpg GRAPHIC 185564
13 GRAPHIC wtm21exhibit005.jpg GRAPHIC 207313
14 GRAPHIC wtm21exhibit006.jpg GRAPHIC 189338
15 GRAPHIC wtm21exhibit007.jpg GRAPHIC 189373
16 GRAPHIC wtm21exhibit008.jpg GRAPHIC 200339
17 GRAPHIC wtm21exhibit009.jpg GRAPHIC 199309
18 GRAPHIC wtm21exhibit010.jpg GRAPHIC 203614
19 GRAPHIC wtm21exhibit011.jpg GRAPHIC 215638
20 GRAPHIC wtm21exhibit012.jpg GRAPHIC 220717
21 GRAPHIC wtm21exhibit013.jpg GRAPHIC 174262
22 GRAPHIC wtm21exhibit014.jpg GRAPHIC 199343
23 GRAPHIC wtm21exhibit015.jpg GRAPHIC 179895
24 GRAPHIC wtm21exhibit016.jpg GRAPHIC 188790
25 GRAPHIC wtm21exhibit017.jpg GRAPHIC 204534
26 GRAPHIC wtm21exhibit018.jpg GRAPHIC 201807
27 GRAPHIC wtm21exhibit019.jpg GRAPHIC 213609
28 GRAPHIC wtm21exhibit020.jpg GRAPHIC 243142
29 GRAPHIC wtm21exhibit021.jpg GRAPHIC 208694
30 GRAPHIC wtm21exhibit022.jpg GRAPHIC 218198
31 GRAPHIC wtm21exhibit023.jpg GRAPHIC 218254
32 GRAPHIC wtm21exhibit024.jpg GRAPHIC 195795
33 GRAPHIC wtm21exhibit025.jpg GRAPHIC 212597
34 GRAPHIC wtm21exhibit026.jpg GRAPHIC 224008
35 GRAPHIC wtm21exhibit027.jpg GRAPHIC 222560
36 GRAPHIC wtm21exhibit028.jpg GRAPHIC 236859
37 GRAPHIC wtm21exhibit029.jpg GRAPHIC 229940
38 GRAPHIC wtm21exhibit030.jpg GRAPHIC 221788
39 GRAPHIC wtm21exhibit031.jpg GRAPHIC 236349
40 GRAPHIC wtm21exhibit032.jpg GRAPHIC 226896
41 GRAPHIC wtm21exhibit033.jpg GRAPHIC 230324
42 GRAPHIC wtm21exhibit034.jpg GRAPHIC 201070
43 GRAPHIC wtm21exhibit035.jpg GRAPHIC 180525
44 GRAPHIC wtm21exhibit036.jpg GRAPHIC 161172
45 GRAPHIC wtm21exhibit037.jpg GRAPHIC 252851
46 GRAPHIC wtm21exhibit038.jpg GRAPHIC 114046
47 GRAPHIC wtm21exhibit039.jpg GRAPHIC 27186
48 GRAPHIC wtm21exhibit040.jpg GRAPHIC 164956
49 GRAPHIC wtm21exhibit041.jpg GRAPHIC 99025
50 GRAPHIC wtm21exhibit042.jpg GRAPHIC 110368
51 GRAPHIC wtm21exhibit043.jpg GRAPHIC 178917
52 GRAPHIC wtm21exhibit044.jpg GRAPHIC 201793
53 GRAPHIC wtm21exhibit045.jpg GRAPHIC 234319
54 GRAPHIC wtm21exhibit046.jpg GRAPHIC 146487
55 GRAPHIC wtm21exhibit047.jpg GRAPHIC 226266
56 GRAPHIC wtm21exhibit048.jpg GRAPHIC 158859
57 GRAPHIC wtm21exhibit049.jpg GRAPHIC 144681
58 GRAPHIC wtm21exhibit050.jpg GRAPHIC 233850
59 GRAPHIC wtm21exhibit051.jpg GRAPHIC 23519
60 GRAPHIC wtm21exhibit052.jpg GRAPHIC 181979
61 GRAPHIC wtm21exhibit053.jpg GRAPHIC 214750
62 GRAPHIC wtm21exhibit054.jpg GRAPHIC 177721
63 GRAPHIC wtm21exhibit055.jpg GRAPHIC 192478
64 GRAPHIC wtm21exhibit056.jpg GRAPHIC 102535
65 GRAPHIC wtm21exhibit057.jpg GRAPHIC 206710
66 GRAPHIC wtm21exhibit058.jpg GRAPHIC 239825
67 GRAPHIC wtm21exhibit059.jpg GRAPHIC 101976
68 GRAPHIC wtm21exhibit060.jpg GRAPHIC 96082
69 GRAPHIC wtm21exhibit061.jpg GRAPHIC 249249
70 GRAPHIC wtm21exhibit062.jpg GRAPHIC 81623
71 GRAPHIC wtm21exhibit063.jpg GRAPHIC 107210
72 GRAPHIC wtm21exhibit064.jpg GRAPHIC 78011
73 GRAPHIC wtm21exhibit065.jpg GRAPHIC 174277
74 GRAPHIC wtm21exhibit066.jpg GRAPHIC 67360
75 GRAPHIC wtm21exhibit067.jpg GRAPHIC 44695
76 GRAPHIC wtm21exhibit068.jpg GRAPHIC 36141
77 GRAPHIC wtm21exhibit069.jpg GRAPHIC 36334
78 GRAPHIC wtm21exhibit070.jpg GRAPHIC 31303
79 GRAPHIC wtm21exhibit071.jpg GRAPHIC 34724
80 GRAPHIC wtm22exhibit001.jpg GRAPHIC 50097
81 GRAPHIC wtm22exhibit002.jpg GRAPHIC 131034
82 GRAPHIC wtm22exhibit003.jpg GRAPHIC 224191
83 GRAPHIC wtm22exhibit004.jpg GRAPHIC 260374
84 GRAPHIC wtm22exhibit005.jpg GRAPHIC 251955
85 GRAPHIC wtm22exhibit006.jpg GRAPHIC 218958
86 GRAPHIC wtm22exhibit007.jpg GRAPHIC 238278
87 GRAPHIC wtm22exhibit008.jpg GRAPHIC 229090
88 GRAPHIC wtm22exhibit009.jpg GRAPHIC 227496
89 GRAPHIC wtm22exhibit010.jpg GRAPHIC 35698
90 GRAPHIC wtm22exhibit011.jpg GRAPHIC 61463
91 GRAPHIC wtm22exhibit012.jpg GRAPHIC 226817
92 GRAPHIC wtm22exhibit013.jpg GRAPHIC 248301
93 GRAPHIC wtm22exhibit014.jpg GRAPHIC 211251
94 GRAPHIC wtm22exhibit015.jpg GRAPHIC 241584
95 GRAPHIC wtm22exhibit016.jpg GRAPHIC 252039
96 GRAPHIC wtm22exhibit017.jpg GRAPHIC 220797
97 GRAPHIC wtm22exhibit018.jpg GRAPHIC 233731
98 GRAPHIC wtm22exhibit019.jpg GRAPHIC 248392
99 GRAPHIC wtm22exhibit020.jpg GRAPHIC 229550
100 GRAPHIC wtm22exhibit021.jpg GRAPHIC 235933
101 GRAPHIC wtm22exhibit022.jpg GRAPHIC 235776
102 GRAPHIC wtm22exhibit023.jpg GRAPHIC 232665
103 GRAPHIC wtm22exhibit024.jpg GRAPHIC 219294
104 GRAPHIC wtm22exhibit025.jpg GRAPHIC 232438
105 GRAPHIC wtm22exhibit026.jpg GRAPHIC 251274
106 GRAPHIC wtm22exhibit027.jpg GRAPHIC 257573
107 GRAPHIC wtm22exhibit028.jpg GRAPHIC 212190
108 GRAPHIC wtm22exhibit029.jpg GRAPHIC 229475
109 GRAPHIC wtm22exhibit030.jpg GRAPHIC 238239
110 GRAPHIC wtm22exhibit031.jpg GRAPHIC 201137
111 GRAPHIC wtm22exhibit032.jpg GRAPHIC 250054
112 GRAPHIC wtm22exhibit033.jpg GRAPHIC 234659
113 GRAPHIC wtm22exhibit034.jpg GRAPHIC 225569
114 GRAPHIC wtm22exhibit035.jpg GRAPHIC 226413
115 GRAPHIC wtm22exhibit036.jpg GRAPHIC 30063
116 GRAPHIC wtm22exhibit037.jpg GRAPHIC 198011
117 GRAPHIC wtm22exhibit038.jpg GRAPHIC 216445
118 GRAPHIC wtm22exhibit039.jpg GRAPHIC 255577
119 GRAPHIC wtm22exhibit040.jpg GRAPHIC 247489
120 GRAPHIC wtm22exhibit041.jpg GRAPHIC 116567
121 GRAPHIC wtm22exhibit042.jpg GRAPHIC 231446
122 GRAPHIC wtm22exhibit043.jpg GRAPHIC 180089
123 GRAPHIC wtm22exhibit044.jpg GRAPHIC 132208
124 GRAPHIC wtm22exhibit045.jpg GRAPHIC 28516
125 GRAPHIC wtm22exhibit046.jpg GRAPHIC 130407
126 GRAPHIC wtm22exhibit047.jpg GRAPHIC 127067
127 GRAPHIC wtm22exhibit048.jpg GRAPHIC 127850
128 GRAPHIC wtm22exhibit049.jpg GRAPHIC 137447
129 GRAPHIC wtm22exhibit050.jpg GRAPHIC 123021
130 GRAPHIC wtm22exhibit051.jpg GRAPHIC 132399
131 GRAPHIC wtm22exhibit052.jpg GRAPHIC 126086
132 GRAPHIC wtm22exhibit053.jpg GRAPHIC 61622
133 GRAPHIC wtm22exhibit054.jpg GRAPHIC 26115
134 GRAPHIC wtm22exhibit055.jpg GRAPHIC 63842
135 GRAPHIC wtm22exhibit056.jpg GRAPHIC 186773
136 GRAPHIC wtm22exhibit057.jpg GRAPHIC 32794
137 GRAPHIC wtm22exhibit058.jpg GRAPHIC 219799
138 GRAPHIC wtm22exhibit059.jpg GRAPHIC 232595
139 GRAPHIC wtm22exhibit060.jpg GRAPHIC 221689
140 GRAPHIC wtm22exhibit061.jpg GRAPHIC 236231
141 GRAPHIC wtm22exhibit062.jpg GRAPHIC 240195
142 GRAPHIC wtm22exhibit063.jpg GRAPHIC 247292
143 GRAPHIC wtm22exhibit064.jpg GRAPHIC 194556
144 GRAPHIC wtm22exhibit065.jpg GRAPHIC 101714
145 GRAPHIC wtm22exhibit066.jpg GRAPHIC 26670
146 GRAPHIC wtm22exhibit067.jpg GRAPHIC 55296
147 GRAPHIC wtm22exhibit068.jpg GRAPHIC 45756
148 GRAPHIC wtm22exhibit069.jpg GRAPHIC 44198
149 GRAPHIC wtm22exhibit070.jpg GRAPHIC 58462
  Complete submission text file 0000776867-20-000032.txt   34030023

Data Files

Seq Description Document Type Size
4 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT wtm-20201001.xsd EX-101.SCH 2508
5 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT wtm-20201001_cal.xml EX-101.CAL 790
6 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT wtm-20201001_def.xml EX-101.DEF 1746
7 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT wtm-20201001_lab.xml EX-101.LAB 23970
8 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT wtm-20201001_pre.xml EX-101.PRE 12726
150 EXTRACTED XBRL INSTANCE DOCUMENT wtm-20201001_htm.xml XML 15080
Mailing Address 23 SOUTH MAIN STREET SUITE 3B HANOVER NH 03755
Business Address 23 SOUTH MAIN STREET SUITE 3B HANOVER NH 03755 603 640 2200
WHITE MOUNTAINS INSURANCE GROUP LTD (Filer) CIK: 0000776867 (see all company filings)

EIN.: 942708455 | State of Incorp.: D0 | Fiscal Year End: 1231
Type: 8-K | Act: 34 | File No.: 001-08993 | Film No.: 201214724
SIC: 6331 Fire, Marine & Casualty Insurance