White Mountains Insurance Group Ltd
WTM- 交易所
- NYSE
- 產業
- Fire, Marine & Casualty Insurance
- SEC CIK
- 0000776867
近 90 天，White Mountains Insurance Group Ltd 沒有內部人公開市場買賣的申報；2026 年第 2 季末有 356 家機構在 13F 申報持有，市值合計 $45.7 億；大師中只有東南資產管理（Longleaf）持有。
2026 年第 2 季 13F 持有人
White Mountains Insurance Group Ltd 在 2026/6/30 季末的機構持股。管理 1 億美元以上美股的機構，每季結束後 45 天內要用 13F 申報多頭部位。13F 是什麼
- 持有機構
- 356
- 較 2026 年第 1 季 −7 家
- 持有股數
- 220.3 萬
- 較 2026 年第 1 季 +8,833 (+0.4%)
- 總市值
- $45.7 億
- 較 2026 年第 1 季 −$2.53 億 (−5.2%)
- 新進機構
- 39
- 另有 96 家加碼
- 清倉機構
- 46
- 另有 146 家減碼
另有 5 家機構在 2026 年第 1 季持有、還沒有申報 2026 年第 2 季 13F：沒申報不算清倉，也不計入上面的變化。
歷季持有家數與市值
2021 年第 1 季起，每季在 13F 申報持有 WTM 的機構家數與合計市值。市值是各季季末的申報市值，也會跟著股價漲跌。
| 季度 | 家數 | 市值 |
|---|---|---|
| 2026 年第 2 季 | 356 | $45.7 億 |
| 2026 年第 1 季 | 368 | $48.6 億 |
| 2025 年第 4 季 | 353 | $46.7 億 |
| 2025 年第 3 季 | 338 | $38.9 億 |
| 2025 年第 2 季 | 325 | $41.7 億 |
| 2025 年第 1 季 | 322 | $44.4 億 |
| 2024 年第 4 季 | 325 | $44.3 億 |
| 2024 年第 3 季 | 304 | $37.8 億 |
| 2024 年第 2 季 | 306 | $41.4 億 |
| 2024 年第 1 季 | 303 | $40.6 億 |
| 2023 年第 4 季 | 295 | $34.2 億 |
| 2023 年第 3 季 | 272 | $34.0 億 |
| 2023 年第 2 季 | 258 | $31.3 億 |
| 2023 年第 1 季 | 262 | $30.9 億 |
| 2022 年第 4 季 | 265 | $32.0 億 |
| 2022 年第 3 季 | 251 | $29.8 億 |
| 2022 年第 2 季 | 259 | $33.2 億 |
| 2022 年第 1 季 | 244 | $30.9 億 |
| 2021 年第 4 季 | 243 | $27.1 億 |
| 2021 年第 3 季 | 232 | $28.6 億 |
| 2021 年第 2 季 | 233 | $31.1 億 |
| 2021 年第 1 季 | 245 | $30.2 億 |
2026 年第 2 季持有機構
每家機構持有 White Mountains Insurance Group Ltd 的股數、市值與佔組合比重；股數變化跟 2026 年第 1 季比。
| 機構 | 股數 | 市值 | 佔組合 % | 股數變化 | 動作 |
|---|---|---|---|---|---|
| D. E. Shaw & Co., Inc. | 6,618 | $1,372 萬 | 0.01% | −2,292−25.7% | 減碼 |
| HRT Financial LP | 6,760 | $1,402 萬 | 0.03% | +4,385+184.6% | 加碼 |
| Royce & Associates LP | 6,781 | $1,406 萬 | 0.11% | +321+5.0% | 加碼 |
| Hotchkis & Wiley Capital Management LLC | 6,788 | $1,407 萬 | 0.04% | +740+12.2% | 加碼 |
| Citadel Advisors LLC | 7,136 | $1,480 萬 | 0.01% | +4,533+174.1% | 加碼 |
| Arrowstreet Capital, Limited Partnership | 7,284 | $1,510 萬 | 0.01% | +5,371+280.8% | 加碼 |
| Thompson Siegel & Walmsley LLC | 7,656 | $1,587 萬 | 0.29% | +447+6.2% | 加碼 |
| GW&K Investment Management, LLC | 7,839 | $1,625 萬 | 0.13% | −87−1.1% | 減碼 |
| SEI Investments Co | 8,108 | $1,681 萬 | 0.01% | −2,990−26.9% | 減碼 |
| Bank of New York Mellon Corp | 8,412 | $1,744 萬 | 0.00% | −32−0.4% | 減碼 |
| Wells Fargo & Company | 8,710 | $1,806 萬 | 0.00% | −72−0.8% | 減碼 |
| Speece Thorson Capital Group Inc | 9,215 | $1,911 萬 | 4.08% | −182−1.9% | 減碼 |
| Qube Research & Technologies Ltd | 9,673 | $2,006 萬 | 0.02% | +8,657+852.1% | 加碼 |
| First Trust Advisors LP | 10,604 | $2,199 萬 | 0.01% | +7,546+246.8% | 加碼 |
| Victory Capital Management Inc | 10,684 | $2,215 萬 | 0.01% | −461−4.1% | 減碼 |
| Boussard & Gavaudan Gestion SAS | 11,679 | $2,446 萬 | 1.24% | +11,679 | 新進 |
| Goldman Sachs Group Inc | 12,151 | $2,519 萬 | 0.00% | −3,632−23.0% | 減碼 |
| Horizon Kinetics Asset Management LLC | 12,206 | $2,531 萬 | 0.29% | −906−6.9% | 減碼 |
| Elkhorn Partners Limited Partnership | 12,320 | $2,554 萬 | 21.89% | −380−3.0% | 減碼 |
| Quantinno Capital Management LP | 12,624 | $2,617 萬 | 0.03% | +2,840+29.0% | 加碼 |
| Envestnet Asset Management Inc | 13,838 | $2,869 萬 | 0.01% | −1,725−11.1% | 減碼 |
| Wellington Management Group LLP | 14,532 | $3,013 萬 | 0.01% | −352−2.4% | 減碼 |
| Northern Trust Corp | 14,571 | $3,021 萬 | 0.00% | −924−6.0% | 減碼 |
| Raymond James Financial Inc | 14,833 | $3,075 萬 | 0.01% | −9,118−38.1% | 減碼 |
| Vanguard Fiduciary Trust Co | 15,319 | $3,176 萬 | 0.01% | +133+0.9% | 加碼 |
| UBS Group AG | 16,198 | $3,358 萬 | 0.01% | +5,757+55.1% | 加碼 |
| Southeastern Asset Management Inc大師東南資產管理（Longleaf） | 17,104 | $3,546 萬 | 1.85% | −1,760−9.3% | 減碼 |
| Jane Street Group, LLC | 17,226 | $3,572 萬 | 0.02% | +3,418+24.8% | 加碼 |
| Brown Advisory Inc | 17,722 | $3,675 萬 | 0.06% | −122−0.7% | 減碼 |
| Gotham Asset Management, LLC | 17,940 | $3,720 萬 | 0.09% | +8,893+98.3% | 加碼 |
| Allspring Global Investments Holdings, LLC | 18,116 | $3,739 萬 | 0.06% | −496−2.7% | 減碼 |
| Mraz, Amerine & Associates, Inc. | 22,218 | $4,607 萬 | 6.61% | +39+0.2% | 加碼 |
| Charles Schwab Investment Management Inc | 23,505 | $4,874 萬 | 0.01% | −736−3.0% | 減碼 |
| Bank of America Corp | 25,028 | $5,189 萬 | 0.00% | −3,330−11.7% | 減碼 |
| Spears Abacus Advisors LLC | 27,577 | $5,718 萬 | 1.02% | −450−1.6% | 減碼 |
| Norges Bank | 27,956 | $5,796 萬 | 0.01% | +27,956 | 新進 |
| American Century Companies Inc | 31,108 | $6,450 萬 | 0.03% | +22,800+274.4% | 加碼 |
| Lord, Abbett & Co. LLC | 32,829 | $6,807 萬 | 0.19% | −281−0.8% | 減碼 |
| T. Rowe Price Investment Management, Inc. | 34,237 | $7,099 萬 | 0.05% | −7,276−17.5% | 減碼 |
| Reinhart Partners, Inc. | 44,480 | $9,227 萬 | 2.11% | +7,106+19.0% | 加碼 |
| Morgan Stanley | 46,866 | $9,718 萬 | 0.01% | −12,429−21.0% | 減碼 |
| Geode Capital Management, LLC | 49,412 | $1.02 億 | 0.01% | +7,293+17.3% | 加碼 |
| State Street Corp | 50,257 | $1.04 億 | 0.00% | +1,099+2.2% | 加碼 |
| London Co of Virginia | 54,025 | $1.12 億 | 0.64% | −3,106−5.4% | 減碼 |
| Boston Partners | 55,569 | $1.15 億 | 0.10% | −1,890−3.3% | 減碼 |
| Gendell Jeffrey L | 59,243 | $1.23 億 | 1.11% | +21,429+56.7% | 加碼 |
| Fiduciary Management Inc | 66,550 | $1.38 億 | 1.96% | −18,516−21.8% | 減碼 |
| Wallace Capital Management Inc. | 80,067 | $1.66 億 | 18.20% | +1,272+1.6% | 加碼 |
| Cooke & Bieler LP | 85,120 | $1.76 億 | 2.04% | −19,737−18.8% | 減碼 |
| Fuller & Thaler Asset Management, Inc. | 101,892 | $2.11 億 | 0.58% | −2,669−2.6% | 減碼 |
| Vanguard Capital Management LLC | 107,479 | $2.23 億 | 0.00% | −1,678−1.5% | 減碼 |
| Vanguard Portfolio Management LLC | 111,969 | $2.32 億 | 0.01% | −3,584−3.1% | 減碼 |
| River Road Asset Management, LLC | 115,880 | $2.40 億 | 2.67% | −4,639−3.8% | 減碼 |
| BlackRock, Inc. | 117,871 | $2.44 億 | 0.00% | +4,543+4.0% | 加碼 |
| Neuberger Berman Group LLC | 119,141 | $2.47 億 | 0.16% | −5,574−4.5% | 減碼 |
| Dimensional Fund Advisors LP | 158,954 | $3.30 億 | 0.06% | +2,336+1.5% | 加碼 |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −10,965−100.0% | 清倉 |
| Select Equity Group, L.P. | 0 | $0 | 0.00% | −10,560−100.0% | 清倉 |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −3,878−100.0% | 清倉 |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −2,611−100.0% | 清倉 |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −2,255−100.0% | 清倉 |
| Diversified Management Inc | 0 | $0 | 0.00% | −1,158−100.0% | 清倉 |
| Capula Management Ltd | 0 | $0 | 0.00% | −921−100.0% | 清倉 |
| Fieldview Capital Management, LLC | 0 | $0 | 0.00% | −729−100.0% | 清倉 |
| Mariner, LLC | 0 | $0 | 0.00% | −607−100.0% | 清倉 |
| AMG National Trust Bank | 0 | $0 | 0.00% | −571−100.0% | 清倉 |
| Entropy Technologies, LP | 0 | $0 | 0.00% | −470−100.0% | 清倉 |
| Main Street Financial Solutions, LLC | 0 | $0 | 0.00% | −439−100.0% | 清倉 |
| Bridgewater Associates, LP | 0 | $0 | 0.00% | −414−100.0% | 清倉 |
| Natixis | 0 | $0 | 0.00% | −356−100.0% | 清倉 |
| CAPROCK Group, Inc. | 0 | $0 | 0.00% | −340−100.0% | 清倉 |
| Private Advisor Group, LLC | 0 | $0 | 0.00% | −213−100.0% | 清倉 |
| Evercore Wealth Management, LLC | 0 | $0 | 0.00% | −200−100.0% | 清倉 |
| Brown Brothers Harriman & Co | 0 | $0 | 0.00% | −199−100.0% | 清倉 |
| Ieq Capital, LLC | 0 | $0 | 0.00% | −198−100.0% | 清倉 |
| State of Wyoming | 0 | $0 | 0.00% | −179−100.0% | 清倉 |
| United Capital Financial Advisers, LLC | 0 | $0 | 0.00% | −166−100.0% | 清倉 |
| Keybank National Association | 0 | $0 | 0.00% | −161−100.0% | 清倉 |
| Zacks Investment Management | 0 | $0 | 0.00% | −157−100.0% | 清倉 |
| Change Path, LLC | 0 | $0 | 0.00% | −150−100.0% | 清倉 |
| Chapman Investment Management, LLC | 0 | $0 | 0.00% | −143−100.0% | 清倉 |
| CIBC Asset Management Inc | 0 | $0 | 0.00% | −124−100.0% | 清倉 |
| Weiss Asset Management LP | 0 | $0 | 0.00% | −120−100.0% | 清倉 |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −110−100.0% | 清倉 |
| Sagespring Wealth Partners, LLC | 0 | $0 | 0.00% | −101−100.0% | 清倉 |
| Buckingham Strategic Partners | 0 | $0 | 0.00% | −99−100.0% | 清倉 |
| Connecticut Capital Management Group, LLC | 0 | $0 | 0.00% | −94−100.0% | 清倉 |
| MAI Capital Management | 0 | $0 | 0.00% | −81−100.0% | 清倉 |
| Anchor Investment Management, LLC | 0 | $0 | 0.00% | −50−100.0% | 清倉 |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −37−100.0% | 清倉 |
| Opal Wealth Advisors, LLC | 0 | $0 | 0.00% | −20−100.0% | 清倉 |
| CX Institutional | 0 | $0 | 0.00% | −19−100.0% | 清倉 |
| Ancora Advisors, LLC | 0 | $0 | 0.00% | −16−100.0% | 清倉 |
| Global Assets Advisory, LLC | 0 | $0 | 0.00% | −15−100.0% | 清倉 |
| Hillsdale Investment Management Inc. | 0 | $0 | 0.00% | −8−100.0% | 清倉 |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −4−100.0% | 清倉 |
| Parkside Financial Bank & Trust | 0 | $0 | 0.00% | −3−100.0% | 清倉 |
| Crewe Advisors LLC | 0 | $0 | 0.00% | −3−100.0% | 清倉 |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −3−100.0% | 清倉 |
| First Horizon Corp | 0 | $0 | 0.00% | −1−100.0% | 清倉 |