# EDGAR Filing Document

**Accession Number:** 0000776867
**File Stem:** 0001104659-25-084020
**Filing Date:** 2025-8
**Character Count:** 3935
**Document Hash:** 0c13d27890b456b63365b08f8d5977c2
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-084020.hdr.sgml**: 20250827

**ACCESSION NUMBER**: 0001104659-25-084020

**CONFORMED SUBMISSION TYPE**: N-PX

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250630

**FILED AS OF DATE**: 20250827

**EFFECTIVENESS DATE**: 20250827

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** WHITE MOUNTAINS INSURANCE GROUP LTD
- **CENTRAL INDEX KEY:** 0000776867
- **STANDARD INDUSTRIAL CLASSIFICATION:** FIRE, MARINE & CASUALTY INSURANCE [6331]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 942708455
- **STATE OF INCORPORATION:** D0
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** N-PX
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-01681
- **FILM NUMBER:** 251265526

**BUSINESS ADDRESS:**
- **STREET 1:** 23 SOUTH MAIN STREET
- **STREET 2:** SUITE 3B
- **CITY:** HANOVER
- **STATE:** NH
- **ZIP:** 03755
- **BUSINESS PHONE:** 603 640 2200

**MAIL ADDRESS:**
- **STREET 1:** 23 SOUTH MAIN STREET
- **STREET 2:** SUITE 3B
- **CITY:** HANOVER
- **STATE:** NH
- **ZIP:** 03755

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** WHITE MOUNTAINS INSURANCE GROUP INC
- **DATE OF NAME CHANGE:** 19990603

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FUND AMERICAN ENTERPRISES HOLDINGS INC
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FUND AMERICAN COMPANIES INC
- **DATE OF NAME CHANGE:** 19920701

## FORM N-PX
### ANNUAL REPORT OF PROXY VOTING RECORD

## N-PX: Filer Information

**Filer CIK:** 0000776867

**Date of Report:** 06/30/2025

**Are you a Registered Management Investment Company or an Institutional Manager?:** Institutional Manager

**Is this a LIVE or TEST Filing?:** LIVE

**Is this an electronic copy of an official filing submitted in paper format?:** [ ]

### Submission Contact Information
_Not provided in this filing._

### Notification Information
**Notify via Filing Website only?:** [ ]

## N-PX: Cover Page

**Name of reporting person:** WHITE MOUNTAINS INSURANCE GROUP LTD

**Address:** 23 SOUTH MAIN STREET, HANOVER, NH 03755

**Telephone number:** 603-640-2200

**Name of agent for service:** —

**Agent Address:** —, —, — —

**Reporting Period:** Report for the year ended 06/30/2025

**SEC File Number:** 028-01681

**CRD Number (if any):** —

**Other SEC File Number (if any):** —

**LEI (if any):** 549300N3FL068JERBG02

**Report Type (check only one):**

Institutional Manager.

- [x] Institutional Manager Voting Report

- [ ] Institutional Manager Notice Report

- [ ] Institutional Manager Combination Report

Registered Management Investment Company.

- [ ] Fund Voting Report

- [ ] Fund Notice Report

**Do you wish to provide explanatory information pursuant to Special Instruction B.4?:**

- [x] No

- [ ] Yes

**Additional information:** —

## N-PX: Summary - Included Managers

**Number of Included Institutional Managers:** 0

**Included Institutional Managers:** —

## FORM N-PX PROXY VOTING RECORD

| NAME OF ISSUER   | CUSIP     | MEETING DATE   | VOTE DESCRIPTION                                                                                         | VOTE CATEGORY                |   SHARES VOTED |   SHARES ON LOAN | HOW VOTED   |   SHARES VOTED FOR OR AGAINST MANAGEMENT | FOR OR AGAINST MANAGEMENT   | OTHER INFO   |
|:---|:---|:---|:---|:---|---:|---:|:---|---:|:---|:---|
| MediaAlpha, Inc. | 58450V104 | 05/14/2025     | To approve, on a non-binding advisory basis, the compensation of the Company's named executive officers. | SECTION 14A SAY-ON-PAY VOTES |       17856614 |                0 | FOR         |                                 17856614 | FOR                         |  |

## N-PX: Signature Block

**Reporting Person:** WHITE MOUNTAINS INSURANCE GROUP LTD

**By (Signature):** Michaela J. Hildreth

**By (Printed Signature):** Michaela J. Hildreth

**By (Title):** Managing Director and Chief Accounting Officer

**Date:** 08/27/2025