VANGUARD PORTFOLIO MANAGEMENT LLC
Position in WTM — White Mountains Insurance Group Ltd
CIK 2100121
MALVERN, PA
Position in WTM
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$232,155,393
-$21,709,925 QoQ
Shares Held
111,969
-3.1% QoQ
Ownership
4.69%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#5
of 354 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority
Sole 0%
Shared 0%
None 100%
Common Shares in WTM Over Time
Shares Held
Position Value (USD)
Position in Insurance - Property & Casualty
Financial Services · as of Jun 30, 2026VANGUARD PORTFOLIO MANAGEMENT LLC holds $20,528,047,147 across 42 Insurance - Property & Casualty names. WTM ranks #16 (1.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ALL |
Allstate Corp
|
13,614,924 | $3,239,535,016 | |
| 2 | CB |
Chubb Ltd
|
8,896,501 | $3,031,393,750 | |
| 3 | TRV |
Travelers Companies, Inc.
|
8,314,274 | $2,744,708,132 | |
| 4 | PGR |
Progressive Corp/Oh/
|
11,686,468 | $2,552,908,934 | |
| 5 | CINF |
Cincinnati Financial Corp
|
8,150,052 | $1,508,900,627 | |
| 6 | WRB |
Berkley W R Corp
|
14,550,971 | $1,026,279,984 | |
| 7 | MKL |
Markel Group Inc.
|
521,976 | $1,019,424,347 | |
| 8 | L |
Loews Corp
|
7,068,628 | $800,239,375 |
All Filings in WTM
Export CSV
2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $232,155,393 | 111,969 | Shares | Defined | 2026-08-13 | |
| 2026-03-31 | $253,865,318 | 115,553 | Shares | Defined | 2026-05-08 | |
| No filing history on record for this holder in this stock. | ||||||