SEC Form 4 · accession 0001668244-16-000031

WHITE MOUNTAINS INSURANCE GROUP LTD · WTM

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Officer — Chief Executive Officer · Director · Other

Period of report

Dec 27, 2016

Accepted (ET)

Dec 29, 2016 · 8:14 pm EST

Rule 10b5-1 plan

unknown — predates the checkbox

Issuer CIK

0000776867

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Shares^F1	Dec 27, 2016	M	1,000	$742.00	A	42,029	D
Common Shares^F1	Dec 27, 2016	F	882	$841.00	D	41,147	D
Common Shares^F1	Dec 27, 2016	G	1,000	$0.00	D	40,147	D
Common Shares^F1	Dec 28, 2016	M	1,000	$742.00	A	41,147	D
Common Shares^F1	Dec 28, 2016	F	879	$843.31	D	40,268	D
Common Shares^F1	Dec 28, 2016	G	1,000	$0.00	D	39,268	D
Common Shares^F1	Dec 29, 2016	M	1,000	$742.00	A	40,268	D
Common Shares^F1	Dec 29, 2016	F	886	$837.10	D	39,382	D
Common Shares^F1	Dec 29, 2016	G	500	$0.00	D	38,882	D
Common Shares	holding	—	—		—	7,999	I	by Grantor Retained Annuity Trust
Common Shares (restricted)	holding	—	—		—	5,000	D
Common Shares	holding	—	—		—	6,106	I	By IRA
Common Shares	holding	—	—		—	717	I	By 401(k)

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Common Share Options (right to buy)^F3	$742.00	Dec 27, 2016	M	1,000	D	—	Jan 20, 2017	Common Shares	1,000	42,000	D
Common Share Options (right to buy)^F3	$742.00	Dec 28, 2016	M	1,000	D	—	Jan 20, 2017	Common Shares	1,000	41,000	D
Common Share Options (right to buy)^F3	$742.00	Dec 29, 2016	M	1,000	D	—	Jan 20, 2017	Common Shares	1,000	40,000	D

F1Includes shares held in accounts jointly owned by the Reporting Person and his spouse.
F2Gift to charitable foundation.
F3All of the options are fully vested and exercisable.