WTM

WHITE MOUNTAINS INSURANCE GROUP LTD

Financial Services · Insurance - Property & Casualty

$198.60 sample

+2.75 (+1.40%) 1D

Market cap

$432.0B

Price as of

2026-10-15

Latest filing

8-K · 2026-08-13

Alerts

8

Price$198.60 -1.98% 3M daily closessample

204.09187.25

2026-07-202026-08-112026-09-022026-09-232026-10-15

purchase / approvalsale / rejectionfiling / neutral

Latest events

Filings, trades, FDA; newest first

Oct 13INSInsider sell: 10% owner
Oct 02INSInsider sell: General Counsel
Sep 24INSInsider sell: EVP, Operations
Sep 15INSInsider sell: 10% owner
Sep 07INSInsider buy: Chief Financial Officer
Aug 27INSInsider sell: Director
Aug 24INSInsider buy: Director
Aug 13SECForm 144 filed

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Company facts

SEC EDGAR registration

Name: WHITE MOUNTAINS INSURANCE GROUP LTD
Sector: Financial Services
Industry: Insurance - Property & Casualty
Smart-money score: -35sample, -100 to +100
Reporting currency: USD

Who is positioning in WTM

sample

Insiders: 15 insider transactions over 90 days, net selling, $365.5M
Congress: 3 members traded over 90 days
Institutions · 13F: 18 funds hold $3.9B
Activists · 13D/G: No 13D/13G activist filings on record

How are the fundamentals trending?

sample, by period end

Revenue$22.8B +16.4% y/y

Q4 2024Q3 2026

Inventory$12.6B +7.0% y/y

Q4 2024Q3 2026

Accounts receivable$9.6B +7.0% y/y

Q4 2024Q3 2026

Total debt$27.0B +10.2% y/y

Q4 2024Q3 2026

Peers

sample

Sample peer A: $287.9B -3.4% 3M
Sample peer B: $77.3B +11.4% 3M
Sample peer C: $303.0B +0.3% 3M
Sample peer D: $409.1B -13.5% 3M
Sample peer E: $247.6B -2.2% 3M