Position in WTM
as of Jun 30, 2026
· filed Aug 4, 2026
Position Value
$115,216,202
-$11,018,920 QoQ
Shares Held
55,569
-3.3% QoQ
Ownership
2.33%
of shares outstanding
% of Portfolio
0.10%
of 13F equity value
Holder Rank
#3
of 133 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 42%
Shared 0%
None 58%
Common Shares in WTM Over Time
Shares Held
Position Value (USD)
Position in Insurance - Property & Casualty
Financial Services · as of Jun 30, 2026Boston Partners holds $2,489,993,635 across 17 Insurance - Property & Casualty names. WTM ranks #7 (4.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ALL |
Allstate Corp
|
2,565,357 | $610,401,042 | |
| 2 | MKL |
Markel Group Inc.
|
307,500 | $600,550,573 | |
| 3 | TRV |
Travelers Companies, Inc.
|
1,005,216 | $331,841,904 | |
| 4 | PGR |
Progressive Corp/Oh/
|
1,487,621 | $324,970,806 | |
| 5 | CB |
Chubb Ltd
|
890,313 | $303,365,250 | |
| 6 | L |
Loews Corp
|
1,211,422 | $137,145,083 | |
| 7 | WTM |
White Mountains Insurance Group Ltd
This page
|
55,569 | $115,216,202 | |
| 8 | AII |
American Integrity Insurance Group, Inc.
|
1,527,196 | $28,757,100 |
All Filings in WTM
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $115,216,202 | 55,569 | Shares | Other | 2026-08-04 | |
| 2026-03-31 | $126,235,122 | 57,459 | Shares | Other | 2026-05-11 | |
| 2025-12-31 | $159,823,364 | 76,911 | Shares | Other | 2026-02-13 | |
| 2025-09-30 | $141,151,505 | 84,445 | Shares | Other | 2025-11-13 | |
| 2025-06-30 | $160,526,592 | 89,394 | Shares | Other | 2025-08-12 | |
| 2025-03-31 | $164,148,347 | 85,236 | Shares | Defined | 2025-05-13 | |
| 2024-12-31 | $166,195,657 | 85,445 | Shares | Other | 2025-02-11 | |
| 2024-09-30 | $144,341,529 | 85,097 | Shares | Defined | 2024-11-12 | |
| 2024-06-30 | $159,337,656 | 87,671 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $162,552,813 | 90,594 | Shares | Other | 2024-05-28 | |
| 2023-12-31 | $139,291,684 | 92,552 | Shares | Other | 2024-02-07 | |
| 2023-09-30 | $171,254,995 | 114,499 | Shares | Defined | 2023-11-08 | |
| 2023-06-30 | $163,898,323 | 118,005 | Shares | Defined | 2023-08-10 | |
| 2023-03-31 | $172,925,959 | 125,537 | Shares | Other | 2023-05-09 | |
| 2022-12-31 | $175,829,504 | 124,320 | Shares | Defined | 2023-02-08 | |
| 2022-09-30 | $166,802,195 | 128,012 | Shares | Defined | 2022-11-09 | |
| 2022-06-30 | $166,003,207 | 133,215 | Shares | Defined | 2022-08-10 | |
| 2022-03-31 | $153,855,984 | 135,408 | Shares | Other | 2022-05-10 | |
| 2021-12-31 | $139,751,919 | 137,836 | Shares | Other | 2022-02-04 | |
| 2021-09-30 | $153,844,144 | 143,832 | Shares | Defined | 2021-11-05 | |
| 2021-06-30 | $161,251,144 | 140,459 | Shares | Other | 2021-08-12 | |
| 2021-03-31 | $152,958,703 | 137,195 | Shares | Defined | 2021-05-10 | |
| 2020-12-31 | $132,083,116 | 131,996 | Shares | Defined | 2021-02-10 | |
| 2020-09-30 | $102,891,099 | 132,081 | Shares | Other | 2020-11-13 | |
| 2020-06-30 | $122,067,459 | 137,468 | Shares | Other | 2020-08-12 | |
| 2020-03-31 | $131,414,010 | 144,411 | Shares | Defined | 2020-05-13 | |
| No filing history on record for this holder in this stock. | ||||||