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Equity · Financial Services

WTM

White Mountains Insurance Group, Ltd. · NYSE

$2,213 +0.82% 1D Finazon · prior-day close · Jul 17, 2026
Price · Chart
Our own end-of-day closes 38 sessions
$2,300 $1,900 22 May 17 Jul

The line runs $2,148 on 22 May through $2,213 on 17 July, on a scale from $1,900 to $2,300. Days the market did not trade hold the previous close, flat.

The chart above plots the price of WTM over the range selected — one day to the full history — drawn by TradingView from their own data. Our own licensed end-of-day series holds 38 sessions over that window: $2,148 on 22 May 2026 through $2,213 on 17 July 2026.

Market cap $5.3B
P/E (TTM) 13.8
52-week range $1,649 – $2,321
Avg volume 5.1K

Finazon · prior-day close · valuation computed from SEC EDGAR filings · as of Aug 19, 2026

WTM insider trades

SEC Form 4

WTM has no Form 4 filing in the last 90 days, so there is no summary for that window. The most recent filings we hold are below, the newest dated 21 May 2026.

Date Insider Type Shares Value
19 Dec 2025 CAMPBELL REID TARLTON Director Sell 10,000 $10.25M
19 Dec 2025 Rountree George Manning Chief Executive Officer Sell 5,000 $10.25M
16 Dec 2025 Gelston Philip A Sell 165 $338K

Compensation mechanics Share grants, option exercises, tax withholding and transfers. They reach the same Form 4 as a trade, but they are not the insider buying or selling on the open market, so no purchase or sale value applies to them.

Date Insider Type Shares Value
21 May 2026 CAMPBELL REID TARLTON Director Award 135
21 May 2026 CHOKSI MARY C Director Award 135
21 May 2026 Carlson Peter M Director Award 135
21 May 2026 Chu John Director Award 135
21 May 2026 Dillon Margaret Director Award 135
21 May 2026 Gelston Philip A Director Award 135
21 May 2026 Hicks Weston M Director Award 190
21 May 2026 SHANK SUZANNE F. Director Award 135
21 May 2026 Tanner David Allen Director Award 135
19 Mar 2026 SEELIG ROBERT LAWRENCE EVP & General Counsel Gift 50
04 Mar 2026 Tanner David Allen Director Gift 225
25 Feb 2026 Caffrey Liam P Chief Executive Officer Award 1,500

Showing the 12 most recent of 23 compensation filings in this window. The figures above count all of them.

WTM reported financials

SEC EDGAR XBRL

WTM reported revenue of $3.7B for the fiscal year ended 31 Dec 2025. Net income over the same period was $1.1B.

Figure Reported Period
Revenue $3.7B 31 Dec 2025 fiscal year
Net income $1.1B 31 Dec 2025 fiscal year
Diluted EPS $430.14 31 Dec 2025 fiscal year
Total assets $13.8B 30 Jun 2026 at period end
Total equity $5.4B 30 Jun 2026 at period end

Source: SEC EDGAR XBRL company facts · latest period ended 30 Jun 2026

WTM earnings

SEC EDGAR
Date Period EPS Revenue
30 Jun 2026 Q2 2026 $80.58 $845M
31 Mar 2026 Q1 2026 $-12.59 $518M
31 Dec 2025 FY 2025 $430.14 $3.74B
30 Sep 2025 Q3 2025 $44.18 $864M
30 Jun 2025 Q2 2025 $47.75 $689M
31 Mar 2025 Q1 2025 $13.19 $578M
31 Dec 2024 FY 2024 $89.79 $2.24B
30 Sep 2024 Q3 2024 $69.68 $839M

Next report no date announced in SEC filings yet

Reported figures & scheduled dates · SEC EDGAR filings

WTM institutional holders

SEC Form 13F

4 of the 45 institutional funds we track reported a WTM position for the quarter ended 30 Jun 2026 — a combined $40.1M; the latest of those filings landed 14 Aug 2026.

Fund Action Shares Value
Citadel Advisors Added +174.1% shares 7,136 $14.8M
D. E. Shaw & Co. Trimmed −25.7% shares 6,618 $13.7M
AQR Capital Management Trimmed −29.6% shares 5,450 $11.3M
Millennium Management Trimmed −63.0% shares 143 $296K
Marshall Wace Exited

Source: SEC EDGAR 13F filings

WTM fails-to-deliver

SEC CNS data

On 23 Jul 2026, 6 shares of WTM failed to deliver (about $13K).

Settlement date Shares failed Notional % of shares out
23 Jul 2026 6 $13K <0.001%
21 Jul 2026 11 $24K <0.001%

Source: SEC fails-to-deliver (CNS) data