NYSE:WTM | Insider Transactions | WHITE MOUNTAINS INSURANCE GROUP LTD

WTM Insider Transactions

317 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–100; provenance stays internal.

WTM insiders transaction timeline

PurchaseSale
2006-04-28: 1 purchase — SEELIG ROBERT LAWRENCE2006-05-17: 1 purchase — BYRNE JOHN JOSEPH2006-12-21: 1 purchase — Frinquelli Angelo Michael2007-03-07: 1 purchase — Tolman Gary Charles2007-12-05: 2 sales — Tolman Gary Charles2008-03-11: 5 purchases — BARRETTE RAYMOND JOSEPH RENE, SEELIG ROBERT LAWRENCE, WATERS ALLAN LEWIS2008-03-12: 4 purchases — BARRETTE RAYMOND JOSEPH RENE2008-03-28: 1 sale — DAVIS MORGAN W2008-04-23: 2 sales — COCHRAN ROBERT PHILLIPS2008-06-20: 20 purchases — SEELIG ROBERT LAWRENCE, BARRETTE RAYMOND JOSEPH RENE2008-10-13: 3 purchases — BARRETTE RAYMOND JOSEPH RENE, WATERS ALLAN LEWIS2008-10-31: 4 sales — GENERAL REINSURANCE CORP, BUFFETT WARREN E, GENERAL RE CORP and 1 more2009-02-18: 4 purchases — BARRETTE RAYMOND JOSEPH RENE2009-02-25: 3 purchases — BARRETTE RAYMOND JOSEPH RENE2009-03-02: 2 purchases — Brouillette Yves, BARRETTE RAYMOND JOSEPH RENE2009-03-06: 1 purchase — SEELIG ROBERT LAWRENCE2009-03-09: 5 purchases — BARRETTE RAYMOND JOSEPH RENE, DAVIS MORGAN W, Frinquelli Angelo Michael and 1 more2009-03-11: 1 purchase — BARRETTE RAYMOND JOSEPH RENE2009-03-16: 1 purchase — BARRETTE RAYMOND JOSEPH RENE2009-03-18: 10 purchases — BARRETTE RAYMOND JOSEPH RENE2009-03-25: 3 purchases — BARRETTE RAYMOND JOSEPH RENE2009-03-30: 1 purchase — BARRETTE RAYMOND JOSEPH RENE2009-03-31: 2 purchases — BARRETTE RAYMOND JOSEPH RENE2009-05-11: 2 purchases — BARRETTE RAYMOND JOSEPH RENE2009-06-09: 1 purchase — Brouillette Yves2009-07-10: 1 sale — COCHRAN ROBERT PHILLIPS2009-07-13: 1 sale — COCHRAN ROBERT PHILLIPS2009-09-22: 1 purchase — Frinquelli Angelo Michael2009-12-08: 1 purchase — Frinquelli Angelo Michael2009-12-09: 5 sales — DAVIS MORGAN W2009-12-23: 1 purchase — SEELIG ROBERT LAWRENCE2009-12-23: 1 sale — CAMPBELL REID TARLTON2009-12-24: 1 purchase — SEELIG ROBERT LAWRENCE2010-05-03: 1 purchase — Frinquelli Angelo Michael2010-05-05: 2 purchases — SEELIG ROBERT LAWRENCE2010-08-02: 1 purchase — Brouillette Yves2010-08-16: 1 purchase — BARRETTE RAYMOND JOSEPH RENE2011-05-27: 1 purchase — WATERS ALLAN LEWIS2011-05-27: 1 sale — BARRETTE RAYMOND JOSEPH RENE2011-06-07: 2 sales — CAMPBELL REID TARLTON2011-07-13: 1 purchase — BARRETTE RAYMOND JOSEPH RENE2011-09-19: 1 sale — Rountree George Manning2011-10-11: 1 purchase — BARRETTE RAYMOND JOSEPH RENE2011-11-29: 15 sales — DAVIS MORGAN W2011-12-02: 2 sales — CAMPBELL REID TARLTON2011-12-19: 10 purchases — Frinquelli Angelo Michael, DAVIS MORGAN W2011-12-27: 7 sales — CAMPBELL REID TARLTON2012-02-14: 5 purchases — DAVIS MORGAN W2012-08-08: 6 purchases — BARRETTE RAYMOND JOSEPH RENE2012-08-09: 4 purchases — BARRETTE RAYMOND JOSEPH RENE2012-12-07: 1 purchase — BARRETTE RAYMOND JOSEPH RENE2012-12-07: 1 sale — CAMPBELL REID TARLTON2012-12-17: 1 purchase — BARRETTE RAYMOND JOSEPH RENE2012-12-17: 1 sale — DAVIS MORGAN W2012-12-19: 5 sales — DAVIS MORGAN W2013-03-06: 1 purchase — BARRETTE RAYMOND JOSEPH RENE2013-04-09: 1 purchase — BARRETTE RAYMOND JOSEPH RENE2013-05-06: 1 purchase — BARRETTE RAYMOND JOSEPH RENE2013-05-15: 7 sales — CAMPBELL REID TARLTON2013-11-21: 5 sales — CAMPBELL REID TARLTON2013-11-22: 2 sales — CAMPBELL REID TARLTON2014-08-05: 1 sale — Oberting Kernan V2015-08-20: 1 sale — DAVIS MORGAN W2015-09-08: 11 sales — Rountree George Manning2015-09-09: 9 sales — Rountree George Manning2015-09-10: 2 sales — Oberting Kernan V2015-11-03: 6 sales — BARRETTE RAYMOND JOSEPH RENE2015-11-16: 9 sales — BARRETTE RAYMOND JOSEPH RENE2015-11-17: 3 sales — BARRETTE RAYMOND JOSEPH RENE2015-12-01: 1 sale — Oberting Kernan V2016-04-28: 1 purchase — BARRETTE RAYMOND JOSEPH RENE2016-08-04: 3 sales — PALMER JESS BRIAN2016-12-12: 1 sale — BARRETTE RAYMOND JOSEPH RENE2016-12-20: 1 sale — BARRETTE RAYMOND JOSEPH RENE2017-11-20: 1 sale — Frinquelli Angelo Michael2017-12-27: 1 sale — DAVIS MORGAN W2018-05-07: 2 sales — SEELIG ROBERT LAWRENCE2018-05-15: 11 sales — DAVIS MORGAN W2018-12-20: 2 sales — SMITH LOWNDES ANDREW2019-03-05: 5 sales — SEELIG ROBERT LAWRENCE2019-03-06: 1 sale — SEELIG ROBERT LAWRENCE2019-03-11: 8 sales — Brouillette Yves2019-03-12: 4 sales — Brouillette Yves2019-03-13: 1 sale — DAVIS MORGAN W2019-03-19: 1 sale — DAVIS MORGAN W2019-03-22: 1 sale — DAVIS MORGAN W2019-03-26: 2 purchases — Tanner David Allen2019-03-26: 1 sale — SMITH LOWNDES ANDREW2019-03-27: 1 sale — DAVIS MORGAN W2019-04-01: 1 sale — DAVIS MORGAN W2019-04-02: 1 sale — DAVIS MORGAN W2019-04-04: 1 sale — DAVIS MORGAN W2019-04-10: 1 sale — DAVIS MORGAN W2019-04-12: 1 sale — DAVIS MORGAN W2019-04-16: 1 sale — DAVIS MORGAN W2019-04-23: 1 sale — DAVIS MORGAN W2019-04-25: 1 sale — DAVIS MORGAN W2019-05-09: 4 sales — SEELIG ROBERT LAWRENCE2019-06-10: 2 sales — SMITH LOWNDES ANDREW2019-06-18: 1 sale — PALMER JESS BRIAN2019-06-24: 5 sales — SEELIG ROBERT LAWRENCE2019-08-08: 2 sales — SMITH LOWNDES ANDREW2019-12-10: 1 sale — SMITH LOWNDES ANDREW2020-03-24: 3 purchases — DAVIS MORGAN W2021-02-09: 2 sales — DAVIS MORGAN W2022-05-31: 1 sale — Hildreth Michaela2022-09-20: 2 sales — Carlson Peter M, DAVIS MORGAN W2022-12-22: 1 sale — Hildreth Michaela2023-11-17: 10 purchases — Hicks Weston M2025-12-16: 1 sale — Gelston Philip A2025-12-19: 3 sales — CAMPBELL REID TARLTON, Rountree George Manning2006-04-282025-12-19
Insider profileRoleDateTransactionSharesPrice
CAMPBELL REID TARLTONDirector2025-12-19Sale5,000.0$2,050.0
CAMPBELL REID TARLTONDirector2025-12-19Sale5,000.0$0.0
Rountree George ManningChief Executive Officer2025-12-19Sale5,000.0$2,050.0
Gelston Philip ADirector2025-12-16Sale165.0$2,048.51
Hicks Weston MDirector2023-11-17Purchase238.0$1,484.96
Hicks Weston MDirector2023-11-17Purchase11.0$1,483.43
Hicks Weston MDirector2023-11-17Purchase579.0$1,479.88
Hicks Weston MDirector2023-11-17Purchase120.0$1,476.74
Hicks Weston MDirector2023-11-17Purchase52.0$1,476.15
Hicks Weston MDirector2023-11-17Purchase238.0$1,484.96
Hicks Weston MDirector2023-11-17Purchase11.0$1,483.43
Hicks Weston MDirector2023-11-17Purchase579.0$1,479.88
Hicks Weston MDirector2023-11-17Purchase120.0$1,476.74
Hicks Weston MDirector2023-11-17Purchase52.0$1,476.15
Hildreth MichaelaMD & Chief Accounting Officer2022-12-22Sale100.0$1,371.84
Carlson Peter MDirector2022-09-20Sale200.0$1,400.0
DAVIS MORGAN WDirector2022-09-20Sale945.0$1,400.0
Hildreth MichaelaMD & Chief Accounting Officer2022-05-31Sale100.0$1,270.94
DAVIS MORGAN WDirector2021-02-09Sale337.0$1,117.0
DAVIS MORGAN WDirector2021-02-09Sale1,163.0$1,138.0
DAVIS MORGAN WDirector2020-03-24Purchase50.0$785.0
DAVIS MORGAN WDirector2020-03-24Purchase610.0$782.6
DAVIS MORGAN WDirector2020-03-24Purchase390.0$715.0
SMITH LOWNDES ANDREWDirector2019-12-10Sale200.0$1,105.76
SMITH LOWNDES ANDREWDirector2019-08-08Sale721.0$1,085.51
SMITH LOWNDES ANDREWDirector2019-08-08Sale279.0$1,088.01
SEELIG ROBERT LAWRENCEEVP & General Counsel2019-06-24Sale10.0$1,052.31
SEELIG ROBERT LAWRENCEEVP & General Counsel2019-06-24Sale103.0$1,049.0
SEELIG ROBERT LAWRENCEEVP & General Counsel2019-06-24Sale70.0$1,048.14
SEELIG ROBERT LAWRENCEEVP & General Counsel2019-06-24Sale657.0$1,046.93
SEELIG ROBERT LAWRENCEEVP & General Counsel2019-06-24Sale160.0$1,039.5
PALMER JESS BRIANChief Accounting Officer2019-06-18Sale431.0$1,016.57
SMITH LOWNDES ANDREWDirector2019-06-10Sale300.0$1,004.24
SMITH LOWNDES ANDREWDirector2019-06-10Sale200.0$1,005.4
SEELIG ROBERT LAWRENCEEVP & General Counsel2019-05-09Sale60.0$975.0
SEELIG ROBERT LAWRENCEEVP & General Counsel2019-05-09Sale860.0$977.34
SEELIG ROBERT LAWRENCEEVP & General Counsel2019-05-09Sale80.0$979.62
SEELIG ROBERT LAWRENCEEVP & General Counsel2019-05-09Sale83.0$985.2
DAVIS MORGAN WDirector2019-04-25Sale554.0$928.4
DAVIS MORGAN WDirector2019-04-23Sale696.0$910.11
DAVIS MORGAN WDirector2019-04-16Sale354.0$912.9
DAVIS MORGAN WDirector2019-04-12Sale585.0$916.95
DAVIS MORGAN WDirector2019-04-10Sale412.0$914.99
DAVIS MORGAN WDirector2019-04-04Sale910.0$923.65
DAVIS MORGAN WDirector2019-04-02Sale362.0$925.0
DAVIS MORGAN WDirector2019-04-01Sale852.0$924.15
DAVIS MORGAN WDirector2019-03-27Sale601.0$922.66
Tanner David AllenDirector2019-03-26Purchase495.0$918.46
Tanner David AllenDirector2019-03-26Purchase5.0$917.05
SMITH LOWNDES ANDREWDirector2019-03-26Sale400.0$916.7
DAVIS MORGAN WDirector2019-03-22Sale709.0$914.0
DAVIS MORGAN WDirector2019-03-19Sale954.0$925.21
DAVIS MORGAN WDirector2019-03-13Sale631.0$907.94
Brouillette YvesDirector2019-03-12Sale424.0$903.19
Brouillette YvesDirector2019-03-12Sale283.0$904.15
Brouillette YvesDirector2019-03-12Sale400.0$905.0
Brouillette YvesDirector2019-03-12Sale161.0$908.0
Brouillette YvesDirector2019-03-11Sale900.0$907.48
Brouillette YvesDirector2019-03-11Sale574.0$910.05
Brouillette YvesDirector2019-03-11Sale14.0$911.06
Brouillette YvesDirector2019-03-11Sale12.0$912.4
Brouillette YvesDirector2019-03-11Sale61.0$915.0
Brouillette YvesDirector2019-03-11Sale192.0$916.18
Brouillette YvesDirector2019-03-11Sale211.0$917.0
Brouillette YvesDirector2019-03-11Sale128.0$918.61
SEELIG ROBERT LAWRENCEEVP & General Counsel2019-03-06Sale1,000.0$958.49
SEELIG ROBERT LAWRENCEEVP & General Counsel2019-03-05Sale846.0$949.98
SEELIG ROBERT LAWRENCEEVP & General Counsel2019-03-05Sale9.0$950.11
SEELIG ROBERT LAWRENCEEVP & General Counsel2019-03-05Sale50.0$950.25
SEELIG ROBERT LAWRENCEEVP & General Counsel2019-03-05Sale82.0$951.0
SEELIG ROBERT LAWRENCEEVP & General Counsel2019-03-05Sale13.0$951.1
SMITH LOWNDES ANDREWDirector2018-12-20Sale100.0$845.39
SMITH LOWNDES ANDREWDirector2018-12-20Sale100.0$846.3
DAVIS MORGAN WDirector2018-05-15Sale100.0$892.06
DAVIS MORGAN WDirector2018-05-15Sale5.0$893.17
DAVIS MORGAN WDirector2018-05-15Sale95.0$893.18
DAVIS MORGAN WDirector2018-05-15Sale100.0$893.1
DAVIS MORGAN WDirector2018-05-15Sale200.0$891.26
DAVIS MORGAN WDirector2018-05-15Sale100.0$891.25
DAVIS MORGAN WDirector2018-05-15Sale100.0$889.2
DAVIS MORGAN WDirector2018-05-15Sale100.0$889.42
DAVIS MORGAN WDirector2018-05-15Sale100.0$888.22
DAVIS MORGAN WDirector2018-05-15Sale100.0$888.11
DAVIS MORGAN WDirector2018-05-15Sale100.0$888.3
SEELIG ROBERT LAWRENCEEVP & General Counsel2018-05-07Sale2,952.0$875.0
SEELIG ROBERT LAWRENCEEVP & General Counsel2018-05-07Sale2,946.0$875.0
DAVIS MORGAN WDirector2017-12-27Sale350.0$846.21
Frinquelli Angelo MichaelDirector2017-11-20Sale100.0$875.0
BARRETTE RAYMOND JOSEPH RENEChief Executive Officer2016-12-20Sale1.0$860.0
BARRETTE RAYMOND JOSEPH RENEChief Executive Officer2016-12-12Sale2,000.0$867.89
PALMER JESS BRIANChief Accounting Officer2016-08-04Sale498.0$820.8
PALMER JESS BRIANChief Accounting Officer2016-08-04Sale533.0$820.9
PALMER JESS BRIANChief Accounting Officer2016-08-04Sale339.0$821.0
BARRETTE RAYMOND JOSEPH RENEChief Executive Officer2016-04-28Purchase100.0$825.0
Oberting Kernan VManaging Director2015-12-01Sale800.0$804.99
BARRETTE RAYMOND JOSEPH RENEChief Executive Officer2015-11-17Sale13.0$773.29
BARRETTE RAYMOND JOSEPH RENEChief Executive Officer2015-11-17Sale200.0$771.99
BARRETTE RAYMOND JOSEPH RENEChief Executive Officer2015-11-17Sale2,887.0$770.07
BARRETTE RAYMOND JOSEPH RENEChief Executive Officer2015-11-16Sale100.0$772.31
BARRETTE RAYMOND JOSEPH RENEChief Executive Officer2015-11-16Sale700.0$770.05