HORIZON KINETICS ASSET MANAGEMENT LLC
Position in WTM — White Mountains Insurance Group Ltd
CIK 1056823
NEW YORK, NY
Position in WTM
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$28,806,539
+$1,540,708 QoQ
Shares Held
13,112
-0.1% QoQ
Ownership
0.549%
of shares outstanding
% of Portfolio
0.32%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
19 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, 2026HORIZON KINETICS ASSET MANAGEMENT LLC holds $33,519,453 across 3 Insurance - Property & Casualty names. WTM ranks #1 (85.9% of the industry book) .
All Filings in WTM
Export CSV
19 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $28,806,539 | 13,112 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $27,265,831 | 13,121 | Shares | Defined | 2026-02-11 | |
| 2025-09-30 | $21,870,167 | 13,084 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $19,700,844 | 10,971 | Shares | Defined | 2025-08-12 | |
| 2025-03-31 | $21,848,315 | 11,345 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $19,623,711 | 10,089 | Shares | Defined | 2025-02-10 | |
| 2024-09-30 | $12,107,475 | 7,138 | Shares | Defined | 2024-11-13 | |
| 2024-06-30 | $2,480,819 | 1,365 | Shares | Defined | 2024-08-14 | |
| 2022-09-30 | $371,360 | 285 | Shares | Defined | 2022-11-15 | |
| 2022-06-30 | $292,840 | 235 | Shares | Defined | 2022-08-05 | |
| 2022-03-31 | $721,512 | 635 | Shares | Defined | 2022-05-13 | |
| 2021-12-31 | $845,592 | 834 | Shares | Defined | 2022-02-15 | |
| 2021-09-30 | $1,160,526 | 1,085 | Shares | Defined | 2021-11-15 | |
| 2021-06-30 | $1,185,914 | 1,033 | Shares | Defined | 2021-08-16 | |
| 2021-03-31 | $1,151,691 | 1,033 | Shares | Defined | 2021-05-11 | |
| 2020-12-31 | $1,033,681 | 1,033 | Shares | Defined | 2021-02-16 | |
| 2020-09-30 | $804,707 | 1,033 | Shares | Defined | 2020-11-16 | |
| 2020-06-30 | $566,524 | 638 | Shares | Defined | 2020-08-14 | |
| 2020-03-31 | $580,580 | 638 | Shares | Defined | 2020-05-13 | |
| No filing history on record for this holder in this stock. | ||||||