T. Rowe Price Investment Management, Inc.
Position in WTM — White Mountains Insurance Group Ltd
CIK 1897612
BALTIMORE, MD
Position in WTM
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$70,986,650
-$20,215,750 QoQ
Shares Held
34,237
-17.5% QoQ
Ownership
1.43%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
#18
of 352 holders
Holding Since
Jun 2023
13 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in WTM Over Time
Shares Held
Position Value (USD)
Position in Insurance - Property & Casualty
Financial Services · as of Jun 30, 2026T. Rowe Price Investment Management, Inc. holds $1,123,891,132 across 15 Insurance - Property & Casualty names. WTM ranks #3 (6.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AIZ |
Assurant, Inc.
|
2,427,220 | $651,781,386 | |
| 2 | HGTY |
Hagerty, Inc.
|
6,088,981 | $72,580,653 | |
| 3 | WTM |
White Mountains Insurance Group Ltd
This page
|
34,237 | $70,986,650 | |
| 4 | ROOT |
Root, Inc.
|
1,220,908 | $68,273,175 | |
| 5 | RLI |
Rli Corp
|
841,445 | $49,704,156 | |
| 6 | PLMR |
Palomar Holdings, Inc.
|
343,967 | $43,473,989 | |
| 7 | KNSL |
Kinsale Capital Group, Inc.
|
129,511 | $42,714,022 | |
| 8 | SIGI |
Selective Insurance Group Inc
|
346,778 | $33,640,933 |
All Filings in WTM
Export CSV
13 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $70,986,650 | 34,237 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $91,202,400 | 41,513 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $13,843,835 | 6,662 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $79,851,853 | 47,772 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $113,024,412 | 62,941 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $120,297,653 | 62,466 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $112,336,946 | 57,755 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $97,841,904 | 57,683 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $104,968,642 | 57,756 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $106,382,252 | 59,289 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $89,039,401 | 59,162 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $64,642,221 | 43,219 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $13,405,759 | 9,652 | Shares | Sole | 2023-08-14 | |
| No filing history on record for this holder in this stock. | ||||||