SEC Form 4 · accession 0001668244-16-000028

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 13, 2016

Accepted (ET)

Dec 15, 2016 · 8:50 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 13, 2016	M	4,000	$742.00	A	45,216	D
Common Shares^F1	Dec 13, 2016	F	3,450	$860.08	D	41,766	D
Common Shares^F1	Dec 14, 2016	M	3,000	$742.00	A	44,766	D
Common Shares^F1	Dec 14, 2016	F	2,628	$846.71	D	42,138	D
Common Shares^F1	Dec 15, 2016	M	3,000	$742.00	A	45,138	D
Common Shares^F1	Dec 15, 2016	F	2,632	$845.62	D	42,506	D
Common Shares	holding	—	—		—	8,000	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)^F2	$742.00	Dec 13, 2016	M	4,000	D	—	Jan 20, 2017	Common Shares	4,000	57,000	D
Common Share Options (right to buy)^F2	$742.00	Dec 14, 2016	M	3,000	D	—	Jan 20, 2017	Common Shares	3,000	54,000	D
Common Share Options (right to buy)^F2	$742.00	Dec 15, 2016	M	3,000	D	—	Jan 20, 2017	Common Shares	3,000	51,000	D

F1Includes shares held in accounts jointly owned by the Reporting Person and his spouse.
F2All of the options are fully vested and exercisable.