白山保险集团有限公司
US ˙ NYSE ˙ BMG9618E1075

介绍

本页面提供了有关 Morgan W Davis 已知的内部交易历史的全面分析。内部人士包括公司的高管、董事或重要投资者。一般而言，基于内幕、非公开信息进行交易是非法的。这并不意味着他们在自己的公司进行任何交易都是非法的。但是，他们必须通过Form 4向美国证券交易委员会（SEC）报告所有交易。尽管存在这些限制，学术研究表明，整体而言，内部人士在自己公司中的投资表现往往优于市场。

平均交易盈利能力

“平均交易盈利能力”衡量了内部人士在过去三年中所有非计划性的公开市场买入交易的平均回报率。计算过程包括检查每笔交易，排除了作为10b5-1交易计划的一部分的交易。然后，对每笔交易在3、6和12个月的表现进行平均，以生成该笔交易最终的表现指标。然后，将所有交易的表现指标进行平均，计算出内部人士的总体平均表现指标。列表仅包含在过去两年中进行过至少三笔交易的内部人士。

如果内部人士的交易盈利能力显示为"N/A"，则可能是因为该内部人士在过去三年内没有进行任何公开市场买入交易，或者他们进行的交易距离现在时间太近，无法计算出可靠的表现指标。

更新频率：每日

查看收益最高的的内幕交易者列表。

查看排名最高的内部人士。
报告内部持仓的公司

美国证券交易委员会（SEC）文件显示Morgan W Davis已报告在以下公司拥有持仓或进行了交易：

证券 职位 最新报告的持仓
US:WTM / White Mountains Insurance Group, Ltd. Director 6,709
Director 0
US:ENH / Endurance Specialty Holdings, Ltd. Director 0
US:MRH / Montpelier Re Holdings Ltd Director 0
如何解读这些图表

以下图表显示了在Morgan W Davis进行的每笔公开市场非计划交易后证券的股价表现。非计划交易是指没有作为10b5-1交易计划的一部分而进行的交易。股价表现以累积百分比变化的方式绘制。例如，如果一笔内部人士交易是在2019年1月1日进行的，该图表将显示该证券的每日百分比变化直至当前日期。如果在此期间股价从10美元涨至15美元，则股价的累积百分比变化将为50%。从10美元涨至20美元的价格变化将为100%，而从10美元跌至5美元的价格变化将为-50%。

最终，我们将评估内部人士的交易与股价的超额回报（正向或负向）之间的相关性，以判断内部人士是否在交易中利用内部信息获利。如果内部人士有这样的行为，我们预期看到（a）买入后的正回报，或者（b）卖出后的负回报。对于情况（a），买入图表将显示一系列向上倾斜的曲线，表示每次买入后都有正回报。对于情况（b），卖出图表将显示一系列向下倾斜的曲线，表示每次卖出后都有负回报。

然而，仅凭这一点还不足以得出结论。例如，如果公司的股价在多年内呈现非周期性上升，我们会预期所有买入后的图表都呈现向上倾斜。同样地，多年来呈现非周期性下降的股价会导致卖出后的图表也呈现向下倾斜。这两种情况的图表都不能表示内部人士在进行内幕交易。

最有力的指标是在公司股价呈极度循环波动的情况下，“买入”图表显示正向信号，而“卖出”图表显示负向趋势。这种情况强烈暗示内部人士可能根据内幕信息精确地计时进行交易，以获得财务优势。

WTM / White Mountains Insurance Group, Ltd.内部人士买入 - 短期收益分析

在这一部分，我们分析了在 WTM / White Mountains Insurance Group, Ltd. 中进行的每笔非计划的公开市场内部人士买入的盈利情况。这种分析有助于了解内部人士是否持续产生异常的回报，以及是否值得跟踪。该分析基于每笔交易后一年的情况，结果仅为理论值。

以下表格显示了最近的自动交易计划之外的公开市场买入。

交易日期 股票代码 内部人士 报告
股数		 报告
价格		 经调整
股数		 经调整
价格		 成本基础 达到最高利润的
天数		 达到最高利润时的
价格		 最高
利润($)		 最高回报率（%）
2020-03-24 WTM DAVIS MORGAN W 390 715.0000 390 715.0000 278,850 335 1267.5200 215,483 77.28
2020-03-24 WTM DAVIS MORGAN W 610 782.6000 610 782.6000 477,386
2020-03-24 WTM DAVIS MORGAN W 50 785.0000 50 785.0000 39,250
2012-02-14 WTM DAVIS MORGAN W 800 463.0000 800 463.0000 370,400
2012-02-14 WTM DAVIS MORGAN W 100 464.0000 100 464.0000 46,400
2012-02-14 WTM DAVIS MORGAN W 1,500 464.0500 1,500 464.0500 696,075
2012-02-14 WTM DAVIS MORGAN W 99 464.2500 99 464.2500 45,961
2012-02-14 WTM DAVIS MORGAN W 501 465.0000 501 465.0000 232,965
2011-12-19 WTM DAVIS MORGAN W 300 426.0700 300 426.0700 127,821
2011-12-19 WTM DAVIS MORGAN W 7 426.2300 7 426.2300 2,984
2011-12-19 WTM DAVIS MORGAN W 500 426.9300 500 426.9300 213,465
2011-12-19 WTM DAVIS MORGAN W 110 427.0600 110 427.0600 46,977
2011-12-19 WTM DAVIS MORGAN W 57 427.8100 57 427.8100 24,385
2011-12-19 WTM DAVIS MORGAN W 1 428.0300 1 428.0300 428
2011-12-19 WTM DAVIS MORGAN W 36 428.9000 36 428.9000 15,440
2011-12-19 WTM DAVIS MORGAN W 200 429.7100 200 429.7100 85,942
2011-12-19 WTM DAVIS MORGAN W 3,789 430.0000 3,789 430.0000 1,629,270
2009-03-09 WTM DAVIS MORGAN W 950 151.2000 950 151.2000 143,640
2009-03-09 WTM DAVIS MORGAN W 50 151.3500 50 151.3500 7,568

经调整价格 已按拆股调整。经调整股数 已按拆股调整。

WTM / White Mountains Insurance Group, Ltd. Insider Trades
WTM / White Mountains Insurance Group, Ltd.内部人士卖出 - 短期亏损分析

在这一部分，我们分析了在 WTM / White Mountains Insurance Group, Ltd. 中进行的每笔非计划的公开市场内部人士卖出所达成的短期亏损规避。如果存在持续的亏损规避模式，可能表明未来的内部人士卖出交易预示着价格的下跌。该分析基于每笔交易后一年的情况，

以下表格显示了最近的自动交易计划之外的公开市场买入。

交易日期 股票代码 内部人士 报告
股数		 报告
价格		 经调整
股数		 经调整
价格		 成本基础 达到最低利润的
天数		 达到最低利润时的
价格		 避免的
最高损失金额($)		 避免的
最高损失率($)
2022-09-20 WTM DAVIS MORGAN W 945 1,400.0000 945 1,400.0000 1,323,000 6 1176.9500 -210,782 -15.93
2021-02-09 WTM DAVIS MORGAN W 1,163 1,138.0000 1,163 1,138.0000 1,323,494
2021-02-09 WTM DAVIS MORGAN W 337 1,117.0000 337 1,117.0000 376,429
2019-04-25 WTM DAVIS MORGAN W 554 928.4000 554 928.4000 514,334
2019-04-12 WTM DAVIS MORGAN W 585 916.9500 585 916.9500 536,416
2019-04-02 WTM DAVIS MORGAN W 362 925.0000 362 925.0000 334,850
2018-05-15 WTM DAVIS MORGAN W 100 888.3000 100 888.3000 88,830
2018-05-15 WTM DAVIS MORGAN W 100 888.1100 100 888.1100 88,811
2018-05-15 WTM DAVIS MORGAN W 100 888.2200 100 888.2200 88,822
2018-05-15 WTM DAVIS MORGAN W 100 889.4200 100 889.4200 88,942
2018-05-15 WTM DAVIS MORGAN W 100 889.2000 100 889.2000 88,920
2018-05-15 WTM DAVIS MORGAN W 100 891.2500 100 891.2500 89,125
2018-05-15 WTM DAVIS MORGAN W 200 891.2600 200 891.2600 178,252
2018-05-15 WTM DAVIS MORGAN W 100 893.1000 100 893.1000 89,310
2018-05-15 WTM DAVIS MORGAN W 95 893.1800 95 893.1800 84,852
2018-05-15 WTM DAVIS MORGAN W 5 893.1700 5 893.1700 4,466
2018-05-15 WTM DAVIS MORGAN W 100 892.0600 100 892.0600 89,206
2017-12-27 WTM DAVIS MORGAN W 350 846.2100 350 846.2100 296,174
2015-08-20 WTM DAVIS MORGAN W 300 730.3450 300 730.3450 219,104
2012-12-19 WTM DAVIS MORGAN W 407 521.0000 407 521.0000 212,047
2012-12-19 WTM DAVIS MORGAN W 21 521.0100 21 521.0100 10,941
2012-12-19 WTM DAVIS MORGAN W 273 521.0200 273 521.0200 142,238
2012-12-19 WTM DAVIS MORGAN W 199 521.1000 199 521.1000 103,699
2012-12-19 WTM DAVIS MORGAN W 100 521.1600 100 521.1600 52,116
2012-12-17 WTM DAVIS MORGAN W 1,000 519.0000 1,000 519.0000 519,000
2011-11-29 WTM DAVIS MORGAN W 1,603 408.0000 1,603 408.0000 654,024
2011-11-29 WTM DAVIS MORGAN W 400 409.0300 400 409.0300 163,612
2011-11-29 WTM DAVIS MORGAN W 300 411.3800 300 411.3800 123,414
2011-11-29 WTM DAVIS MORGAN W 22 411.5000 22 411.5000 9,053
2011-11-29 WTM DAVIS MORGAN W 200 411.5200 200 411.5200 82,304
2011-11-29 WTM DAVIS MORGAN W 16 411.5300 16 411.5300 6,584
2011-11-29 WTM DAVIS MORGAN W 4 411.6900 4 411.6900 1,647
2011-11-29 WTM DAVIS MORGAN W 317 412.0000 317 412.0000 130,604
2011-11-29 WTM DAVIS MORGAN W 390 412.0500 390 412.0500 160,700
2011-11-29 WTM DAVIS MORGAN W 10 412.0800 10 412.0800 4,121
2011-11-29 WTM DAVIS MORGAN W 100 412.2800 100 412.2800 41,228
2011-11-29 WTM DAVIS MORGAN W 1,331 412.3400 1,331 412.3400 548,825
2011-11-29 WTM DAVIS MORGAN W 97 412.6000 97 412.6000 40,022
2011-11-29 WTM DAVIS MORGAN W 100 412.7200 100 412.7200 41,272
2011-11-29 WTM DAVIS MORGAN W 3 412.8900 3 412.8900 1,239
2009-12-09 WTM DAVIS MORGAN W 500 315.8000 500 315.8000 157,900
2009-12-09 WTM DAVIS MORGAN W 500 315.9500 500 315.9500 157,975
2009-12-09 WTM DAVIS MORGAN W 500 316.0000 500 316.0000 158,000
2009-12-09 WTM DAVIS MORGAN W 500 316.0300 500 316.0300 158,015
2009-12-09 WTM DAVIS MORGAN W 500 316.9700 500 316.9700 158,485
2008-03-28 WTM DAVIS MORGAN W 200 477.2690 200 477.2690 95,454

经调整价格 已按拆股调整。经调整股数 已按拆股调整。

WTM / White Mountains Insurance Group, Ltd. Insider Trades
内幕交易历史

该表格显示了由 Morgan W Davis 进行的所有内幕交易的完整列表，这些交易已向美国证券交易委员会（SEC）披露。

备案日期 交易日期 表格 股票代码 证券 代码 10b5-1 股数 剩余股数 %
变化		 每股
股价		 交易
金额		 剩余
金额
2022-12-29 2022-12-28 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		G - Gift -200 6,709 -2.89
2022-09-22 2022-09-20 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -945 6,909 -12.03 1,400.00 -1,323,000 9,672,600
2022-05-27 2022-05-26 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		A - Award 315 7,854 4.18
2021-12-10 2021-12-08 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		G - Gift -150 7,539 -1.95
2021-05-28 2021-05-27 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		A - Award 315 1,030 44.06
2021-02-11 2021-02-09 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -337 715 -32.03 1,117.00 -376,429 798,655
2021-02-11 2021-02-09 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -1,163 1,052 -52.51 1,138.00 -1,323,494 1,197,176
2020-12-10 2020-12-09 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		G - Gift -100 1,900 -5.00
2020-05-22 2020-05-21 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		A - Award 315 8,004 4.10
2020-03-25 2020-03-24 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 50 7,689 0.65 785.00 39,250 6,035,865
2020-03-25 2020-03-24 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 610 7,639 8.68 782.60 477,386 5,978,281
2020-03-25 2020-03-24 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 390 7,029 5.87 715.00 278,850 5,025,735
2019-12-20 2019-12-17 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		G - Gift -1,350 2,000 -40.30
2019-05-28 2019-05-23 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		A - Award 350 3,350 11.67
2019-04-25 2019-04-25 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -554 3,000 -15.59 928.40 -514,334 2,785,200
2019-04-25 2019-04-23 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale X -696 3,554 -16.38 910.11 -633,437 3,234,531
2019-04-17 2019-04-16 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale X -354 4,250 -7.69 912.90 -323,167 3,879,825
2019-04-12 2019-04-12 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -585 4,604 -11.27 916.95 -536,416 4,221,638
2019-04-12 2019-04-10 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale X -412 5,189 -7.36 914.99 -376,976 4,747,883
2019-04-05 2019-04-04 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale X -910 5,601 -13.98 923.65 -840,522 5,173,364
2019-04-02 2019-04-02 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -362 6,511 -5.27 925.00 -334,850 6,022,675
2019-04-02 2019-04-01 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale X -852 6,873 -11.03 924.15 -787,376 6,351,683
2019-03-28 2019-03-27 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale X -601 7,725 -7.22 922.66 -554,519 7,127,548
2019-03-25 2019-03-22 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale X -709 8,326 -7.85 914.00 -648,026 7,609,964
2019-03-20 2019-03-19 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale X -954 9,035 -9.55 925.21 -882,650 8,359,272
2019-03-14 2019-03-13 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale X -631 9,989 -5.94 907.94 -572,910 9,069,413
2018-11-30 2018-11-29 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		G - Gift -330 17,259 -1.88
2018-05-25 2018-05-24 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		A - Award 350 17,589 2.03
2018-05-16 2018-05-15 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -100 17,239 -0.58 892.06 -89,206 15,378,222
2018-05-16 2018-05-15 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -5 17,339 -0.03 893.17 -4,466 15,486,675
2018-05-16 2018-05-15 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -95 17,344 -0.54 893.18 -84,852 15,491,314
2018-05-16 2018-05-15 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -100 17,439 -0.57 893.10 -89,310 15,574,771
2018-05-16 2018-05-15 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -200 17,539 -1.13 891.26 -178,252 15,631,809
2018-05-16 2018-05-15 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -100 17,739 -0.56 891.25 -89,125 15,809,884
2018-05-16 2018-05-15 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -100 17,839 -0.56 889.20 -88,920 15,862,439
2018-05-16 2018-05-15 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -100 17,939 -0.55 889.42 -88,942 15,955,305
2018-05-16 2018-05-15 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -100 18,039 -0.55 888.22 -88,822 16,022,601
2018-05-16 2018-05-15 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -100 18,139 -0.55 888.11 -88,811 16,109,427
2018-05-16 2018-05-15 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -100 18,239 -0.55 888.30 -88,830 16,201,704
2018-04-09 2018-04-06 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		G - Gift -2,450 18,339 -11.79
2017-12-28 2017-12-27 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -350 20,790 -1.66 846.21 -296,174 17,592,706
2017-12-04 2017-12-04 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		G - Gift -500 21,140 -2.31
2017-09-28 2017-09-28 4 OB OneBeacon Insurance Group, Ltd.
Class A Common Shares 		D - Sale to Issuer -49,428 0 -100.00 18.10 -894,647
2017-05-26 2017-05-25 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		A - Award 350 21,640 1.64
2017-03-30 2017-03-28 4 ENH ENDURANCE SPECIALTY HOLDINGS LTD
Ordinary Shares, par value $1.00 per share 		D - Sale to Issuer -13,488 0 -100.00 93.00 -1,254,384
2017-03-30 2017-03-28 4 ENH ENDURANCE SPECIALTY HOLDINGS LTD
Ordinary Shares, par value $1.00 per share 		D - Sale to Issuer -5,664 0 -100.00 93.00 -526,752
2016-12-07 2016-12-06 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		G - Gift -350 21,290 -1.62
2016-05-27 2016-05-25 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		A - Award 300 21,640 1.41
2016-05-23 2016-05-19 4 ENH ENDURANCE SPECIALTY HOLDINGS LTD
Ordinary Shares, par value $1.00 per share 		A - Award 1,715 14,203 13.73
2016-05-23 3/A ENH ENDURANCE SPECIALTY HOLDINGS LTD
Ordinary Shares, par value $1.00 per share 		5,664
2016-05-23 3/A ENH ENDURANCE SPECIALTY HOLDINGS LTD
Ordinary Shares, par value $1.00 per share 		13,488
2016-02-09 2016-02-08 4 OB OneBeacon Insurance Group, Ltd.
Class A Common Shares 		P - Purchase 7,500 49,428 17.89 12.98 97,350 641,575
2015-12-08 2015-12-04 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		G - Gift -655 21,340 -2.98
2015-08-24 2015-08-20 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -300 21,995 -1.35 730.34 -219,104 16,063,938
2015-08-04 3 ENH ENDURANCE SPECIALTY HOLDINGS LTD
Ordinary Shares, par value $1.00 per share 		28,640
2015-08-04 3 ENH ENDURANCE SPECIALTY HOLDINGS LTD
Ordinary Shares, par value $1.00 per share 		22,816
2015-08-04 3 ENH ENDURANCE SPECIALTY HOLDINGS LTD
Ordinary Shares, par value $1.00 per share 		28,640
2015-08-04 3 ENH ENDURANCE SPECIALTY HOLDINGS LTD
Ordinary Shares, par value $1.00 per share 		22,816
2015-08-03 2015-07-31 4 MRH MONTPELIER RE HOLDINGS LTD
Common Shares, par value 1/6 cent per share 		D - Sale to Issuer -12,000 0 -100.00
2015-08-03 2015-07-31 4 MRH MONTPELIER RE HOLDINGS LTD
Common Shares, par value 1/6 cent per share 		D - Sale to Issuer -24,340 0 -100.00
2015-06-15 2015-06-15 4 MRH MONTPELIER RE HOLDINGS LTD
Restricted Share Units 		M - Exercise -2,500 0 -100.00 38.67 -96,680
2015-06-15 2015-06-15 4 MRH MONTPELIER RE HOLDINGS LTD
Common Shares 		M - Exercise 2,500 24,340 11.45 38.67 96,680 941,276
2015-05-29 2015-05-27 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		A - Award 200 22,295 0.91
2015-02-11 2014-11-26 5 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		G - Gift -50 22,095 -0.23
2015-02-11 2014-05-22 5 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		A - Award 200 22,145 0.91
2014-06-16 2014-06-15 4 MRH MONTPELIER RE HOLDINGS LTD
Restricted Share Units 		A - Award 2,500 2,500 31.81 79,530 79,530
2014-06-16 2014-06-15 4 MRH MONTPELIER RE HOLDINGS LTD
Restricted Share Units 		M - Exercise -2,000 0 -100.00 31.81 -63,624
2014-06-16 2014-06-15 4 MRH MONTPELIER RE HOLDINGS LTD
Common Shares 		M - Exercise 2,000 21,840 10.08 31.81 63,624 694,774
2013-12-12 2013-12-10 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		G - Gift -145 21,945 -0.66
2013-08-05 2013-08-01 4 OB OneBeacon Insurance Group, Ltd.
Class A Common Shares 		P - Purchase 13,000 41,928 44.94 14.48 188,240 607,117
2013-06-17 2013-06-15 4 MRH MONTPELIER RE HOLDINGS LTD
Restricted Share Units 		A - Award 2,000 2,000 25.22 50,436 50,436
2013-06-17 2013-06-15 4 MRH MONTPELIER RE HOLDINGS LTD
Restricted Share Units 		M - Exercise -2,000 0 -100.00 25.22 -50,436
2013-06-17 2013-06-15 4 MRH MONTPELIER RE HOLDINGS LTD
Common Shares 		M - Exercise 2,000 19,840 11.21 25.22 50,436 500,325
2013-05-28 2013-05-23 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		A - Award 200 22,089 0.91
2012-12-20 2012-12-20 4 MRH MONTPELIER RE HOLDINGS LTD
Common Shares 		S - Sale -10,500 9,840 -51.62 22.85 -239,894 224,814
2012-12-19 2012-12-19 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -100 21,890 -0.45 521.16 -52,116 11,408,192
2012-12-19 2012-12-19 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -199 21,990 -0.90 521.10 -103,699 11,458,989
2012-12-19 2012-12-19 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -273 22,189 -1.22 521.02 -142,238 11,560,913
2012-12-19 2012-12-19 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -21 22,462 -0.09 521.01 -10,941 11,702,927
2012-12-19 2012-12-19 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -407 22,483 -1.78 521.00 -212,047 11,713,643
2012-12-19 2012-12-17 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		G - Gift -400 22,890 -1.72
2012-12-19 2012-12-17 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -1,000 23,290 -4.12 519.00 -519,000 12,087,510
2012-06-15 2012-06-15 4 MRH MONTPELIER RE HOLDINGS LTD
Restricted Share Units 		M - Exercise -2,000 0 -100.00 20.43 -40,860
2012-06-15 2012-06-15 4 MRH MONTPELIER RE HOLDINGS LTD
Restricted Share Units 		A - Award 2,000 2,000
2012-06-15 2012-06-15 4 MRH MONTPELIER RE HOLDINGS LTD
Restricted Share Units 		M - Exercise -1,250 0 -100.00 20.43 -25,538
2012-06-15 2012-06-15 4 MRH MONTPELIER RE HOLDINGS LTD
Common Shares 		M - Exercise 3,250 20,340 19.02 20.43 66,398 415,546
2012-05-29 2012-05-24 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		A - Award 200 24,290 0.83
2012-02-16 2012-02-14 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 501 24,090 2.12 465.00 232,965 11,201,850
2012-02-16 2012-02-14 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 99 23,589 0.42 464.25 45,961 10,951,193
2012-02-16 2012-02-14 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 1,500 23,490 6.82 464.05 696,075 10,900,534
2012-02-16 2012-02-14 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 100 21,990 0.46 464.00 46,400 10,203,360
2012-02-16 2012-02-14 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 800 21,890 3.79 463.00 370,400 10,135,070
2011-12-21 2011-12-19 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 3,789 21,090 21.90 430.00 1,629,270 9,068,700
2011-12-21 2011-12-19 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 200 17,301 1.17 429.71 85,942 7,434,413
2011-12-21 2011-12-19 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 36 17,101 0.21 428.90 15,440 7,334,619
2011-12-21 2011-12-19 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 1 17,065 0.01 428.03 428 7,304,332
2011-12-21 2011-12-19 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 57 17,064 0.34 427.81 24,385 7,300,150
2011-12-21 2011-12-19 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 110 17,007 0.65 427.06 46,977 7,263,009
2011-12-21 2011-12-19 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 500 16,897 3.05 426.93 213,465 7,213,836
2011-12-21 2011-12-19 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 7 16,397 0.04 426.23 2,984 6,988,893
2011-12-21 2011-12-19 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 300 16,390 1.86 426.07 127,821 6,983,287
2011-12-21 2011-12-14 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		G - Gift -400 16,090 -2.43
2011-12-01 2011-11-29 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -3 0 -100.00 412.89 -1,239
2011-12-01 2011-11-29 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -100 3 -97.09 412.72 -41,272 1,238
2011-12-01 2011-11-29 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -97 103 -48.50 412.60 -40,022 42,498
2011-12-01 2011-11-29 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -1,331 200 -86.94 412.34 -548,825 82,468
2011-12-01 2011-11-29 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -100 1,531 -6.13 412.28 -41,228 631,201
2011-12-01 2011-11-29 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -10 1,631 -0.61 412.08 -4,121 672,102
2011-12-01 2011-11-29 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -390 1,641 -19.20 412.05 -160,700 676,174
2011-12-01 2011-11-29 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -317 2,031 -13.50 412.00 -130,604 836,772
2011-12-01 2011-11-29 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -4 2,348 -0.17 411.69 -1,647 966,648
2011-12-01 2011-11-29 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -16 2,352 -0.68 411.53 -6,584 967,919
2011-12-01 2011-11-29 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -200 2,368 -7.79 411.52 -82,304 974,479
2011-12-01 2011-11-29 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -22 2,568 -0.85 411.50 -9,053 1,056,732
2011-12-01 2011-11-29 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -300 2,590 -10.38 411.38 -123,414 1,065,474
2011-12-01 2011-11-29 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -400 2,890 -12.16 409.03 -163,612 1,182,097
2011-12-01 2011-11-29 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -1,603 3,290 -32.76 408.00 -654,024 1,342,320
2011-05-31 2011-05-26 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		A - Award 200 16,490 1.23
2011-01-04 2010-12-20 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		G - Gift -350 16,289 -2.10
2010-07-16 2010-05-26 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		A - Award 100 16,639 0.60
2010-01-14 2009-12-11 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		G - Gift -400 16,539 -2.36
2009-12-11 2009-12-09 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -500 16,939 -2.87 316.97 -158,485 5,369,155
2009-12-11 2009-12-09 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -500 17,439 -2.79 316.03 -158,015 5,511,247
2009-12-11 2009-12-09 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -500 17,939 -2.71 316.00 -158,000 5,668,724
2009-12-11 2009-12-09 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -500 18,439 -2.64 315.95 -157,975 5,825,802
2009-12-11 2009-12-09 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -500 18,939 -2.57 315.80 -157,900 5,980,936
2009-06-10 2009-06-08 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		A - Award 100 19,319 0.52
2009-03-10 2009-03-09 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 50 19,219 0.26 151.35 7,568 2,908,796
2009-03-10 2009-03-09 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		P - Purchase 950 19,169 5.21 151.20 143,640 2,898,353
2009-01-13 2009-01-09 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Phantom Shares (Deferred Compensation) 		M - Exercise -4,619 0 -100.00
2009-01-13 2009-01-09 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		D - Sale to Issuer -1,619 18,219 -8.16 275.00 -445,225 5,010,225
2009-01-13 2009-01-09 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		M - Exercise 4,619 19,319 31.42
2008-06-27 2008-06-25 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Phantom Shares (Deferred Compensation) 		A - Award 17 4,619 0.37 440.00 7,480 2,032,360
2008-06-02 2008-05-29 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Phantom Shares (Deferred Compensation) 		A - Award 100 4,602 2.22
2008-03-31 2008-03-28 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		S - Sale -200 14,700 -1.34 477.27 -95,454 7,015,854
2008-03-28 2008-03-26 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Phantom Shares (Deferred Compensation) 		A - Award 19 4,502 0.42 475.02 9,025 2,138,540
2007-12-31 2007-12-27 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Phantom Shares (Deferred Compensation) 		A - Award 18 4,483 0.40 500.00 9,000 2,241,500
2007-12-31 2007-11-08 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		G - Gift -299 14,900 -1.97
2007-09-28 2007-09-26 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Phantom Shares (Deferred Compensation) 		A - Award 17 4,465 0.38 525.80 8,939 2,347,697
2007-06-29 2007-06-27 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Phantom Shares (Deferred Compensation) 		A - Award 15 4,448 0.34 600.00 9,000 2,668,800
2007-05-29 2007-05-24 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		A - Award 100 15,199 0.66
2007-04-10 2007-04-05 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Phantom Shares (Deferred Compensation) 		M - Exercise -2,105 4,177 -33.51
2007-04-10 2007-04-05 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		D - Sale to Issuer -2,105 15,099 -12.24 570.01 -1,199,871 8,606,581
2007-04-10 2007-04-05 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		M - Exercise 2,105 17,204 13.94
2007-03-30 2007-03-28 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Phantom Shares (Deferred Compensation) 		A - Award 24 6,540 0.37 560.00 13,440 3,662,400
2007-01-25 2007-01-23 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		D - Sale to Issuer -85 5,609 -1.49 577.90 -49,122 3,241,441
2006-12-28 2006-12-27 4 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Phantom Shares (Deferred Compensation) 		A - Award 21 6,260 0.34 579.01 12,159 3,624,603
2006-12-11 3 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		15,099
2006-12-11 3 WTM WHITE MOUNTAINS INSURANCE GROUP LTD
Common Shares 		5,688
P
非衍生或衍生证券的公开市场或私下买入
S
非衍生或衍生证券的公开市场或私下卖出
A
公司向内部人员授予、奖励或以其他方式获取证券（例如股票期权）
C
衍生工具转换
D
将证券卖出或转让回公司
F
使用从公司收到的证券的一部分来支付行使价或税务负担。
G
内部人士赠送或接收他人赠送公司股票
K
股权掉期和类似的避险交易
M
行使或转换从公司获得的衍生证券（例如期权）
V
内部人士通过Form 4自愿报告的一笔交易
J
其他（附有交易描述的脚注）