UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

May 23, 2024

Date of Report (Date of earliest event reported)

WHITE MOUNTAINS INSURANCE GROUP, LTD.

(Exact name of registrant as specified in its charter)

Bermuda (State or other jurisdiction of  incorporation or organization) 1-8993 (Commission file number) 94-2708455 (I.R.S. Employer Identification No.)

23 South Main Street, Suite 3B, Hanover, New Hampshire 03755

(Address of principal executive offices)

(603) 640-2200

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Shares, par value $1.00 per share	WTM	New York Stock Exchange
	WTM.BH	Bermuda Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933(§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).                                     Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.      o

ITEM 5.07 Submission of Matters to a Vote of Security Holders.

The Company held its 2024 Annual General Meeting of Members (the “2024 Annual Meeting”) on May 23, 2024 in Hamilton, Bermuda.

As of April 1, 2024, the record date for the 2024 Annual Meeting, a total of 2,565,733 common shares were outstanding and eligible to vote. The results are presented below.

Proposal 1 - Election of the Company's Directors.

Election Class I Director to a term ending in 2025:

Nominee:	Votes FOR	Votes Against	Abstained	Broker Non-votes
Reid T. Campbell	2,063,015	52,793	1,342	275,329

Election Class III Directors to a term ending in 2027:

Nominee:	Votes FOR	Votes Against	Abstained	Broker Non-votes
Margaret Dillon	1,973,283	142,616	1,251	275,329
Philip A. Gelston	1,872,888	242,922	1,340	275,329
David A. Tanner	2,058,070	57,780	1,300	275,329

Proposal 2 - Approval of the advisory resolution on executive compensation.

Votes FOR	Votes Against	Abstained	Broker Non-votes
1,981,167 (94%)	129,364	6,619	275,329

Proposal 3 - Approval of the appointment of PricewaterhouseCoopers LLP (“PwC”) as the Company's Independent Registered Public Accounting Firm for 2024.

Votes FOR	Votes Against	Abstained
2,313,759	76,763	1,957

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	WHITE MOUNTAINS INSURANCE GROUP, LTD.
May 23, 2024	By:	/s/   MICHAELA J. HILDRETH            Michaela J. Hildreth       Managing Director and        Chief Accounting Officer

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