AMERICAN CENTURY COMPANIES INC
Position in WTM — White Mountains Insurance Group Ltd
CIK 748054
KANSAS CITY, MO
Position in WTM
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$18,252,343
+$16,392,507 QoQ
Shares Held
8,308
+828.3% QoQ
Ownership
0.348%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
22 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 Mar 31, 2026AMERICAN CENTURY COMPANIES INC holds $1,808,054,811 across 40 Insurance - Property & Casualty names. WTM ranks #21 (1.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ALL |
Allstate Corp
|
1,504,460 | $311,934,736 | |
| 2 | PGR |
Progressive Corp/Oh/
|
1,505,424 | $298,435,253 | |
| 3 | THG |
Hanover Insurance Group, Inc.
|
1,002,527 | $173,788,055 | |
| 4 | TRV |
Travelers Companies, Inc.
|
593,138 | $173,006,491 | |
| 5 | HCI |
HCI Group, Inc.
|
625,373 | $96,688,919 | |
| 6 | SIGI |
Selective Insurance Group Inc
|
1,267,272 | $95,539,636 | |
| 7 | MCY |
Mercury General Corp
|
813,320 | $71,694,158 | |
| 8 | PLMR |
Palomar Holdings, Inc.
|
585,710 | $69,992,345 |
All Filings in WTM
Export CSV
22 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $18,252,343 | 8,308 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $1,859,836 | 895 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $3,747,547 | 2,242 | Shares | Defined | 2025-11-12 | |
| 2025-06-30 | $11,429,757 | 6,365 | Shares | Defined | 2025-08-12 | |
| 2025-03-31 | $13,549,999 | 7,036 | Shares | Defined | 2025-05-13 | |
| 2024-12-31 | $10,454,698 | 5,375 | Shares | Defined | 2025-02-11 | |
| 2024-09-30 | $9,305,353 | 5,486 | Shares | Defined | 2024-11-12 | |
| 2024-06-30 | $26,721,967 | 14,703 | Shares | Defined | 2024-08-07 | |
| 2024-03-31 | $37,305,291 | 20,791 | Shares | Defined | 2024-05-14 | |
| 2023-12-31 | $22,353,913 | 14,853 | Shares | Defined | 2024-02-13 | |
| 2023-06-30 | $10,207,099 | 7,349 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $8,200,197 | 5,953 | Shares | Defined | 2023-05-11 | |
| 2022-12-31 | $8,467,593 | 5,987 | Shares | Defined | 2023-02-13 | |
| 2022-09-30 | $7,922,361 | 6,080 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $7,802,019 | 6,261 | Shares | Defined | 2022-08-12 | |
| 2022-03-31 | $7,798,015 | 6,863 | Shares | Defined | 2022-05-11 | |
| 2021-12-31 | $6,308,485 | 6,222 | Shares | Defined | 2022-02-07 | |
| 2021-09-30 | $4,734,093 | 4,426 | Shares | Defined | 2021-11-10 | |
| 2021-06-30 | $3,791,943 | 3,303 | Shares | Defined | 2021-08-05 | |
| 2021-03-31 | $1,324,501 | 1,188 | Shares | Defined | 2021-05-14 | |
| 2020-06-30 | $5,745,165 | 6,470 | Shares | Defined | 2020-08-13 | |
| 2020-03-31 | $18,221,840 | 20,024 | Shares | Defined | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||