White Mountains Insurance Group, Ltd. Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| DIMENSIONAL FUND ADVISORS LP | 05/07/2026 | 156.62 K | $344.08 M | 0.01% | 6.13% |
| NEUBERGER BERMAN GROUP LLC | 05/14/2026 | 124.72 K | $273.99 M | -3.81% | 4.88% |
| RIVER ROAD ASSET MANAGEMENT, LLC | 04/30/2026 | 120.52 K | $264.78 M | -0.30% | 4.72% |
| 05/08/2026 | 115.55 K | $253.87 M | 100.00% | 4.52% | |
| BLACKROCK, INC. | 05/13/2026 | 113.33 K | $248.98 M | 0.93% | 4.44% |
| 05/15/2026 | 109.16 K | $239.81 M | 100.00% | 4.27% | |
| COOKE & BIELER LP | 05/04/2026 | 104.86 K | $230.37 M | -1.62% | 4.11% |
| FULLER & THALER ASSET MANAGEMENT, INC. | 05/14/2026 | 104.56 K | $229.72 M | -3.34% | 4.09% |
| FIDUCIARY MANAGEMENT INC /WI/ | 05/14/2026 | 85.07 K | $186.89 M | -5.83% | 3.33% |
| WALLACE CAPITAL MANAGEMENT INC. | 05/15/2026 | 78.80 K | $173.11 M | -1.93% | 3.09% |
| MORGAN STANLEY | 05/15/2026 | 59.30 K | $130.27 M | -27.82% | 2.32% |
| BOSTON PARTNERS | 05/11/2026 | 57.46 K | $126.22 M | -25.29% | 2.25% |
| LONDON CO OF VIRGINIA | 05/15/2026 | 57.13 K | $125.54 M | -2.67% | 2.24% |
| STATE STREET CORP | 05/15/2026 | 49.16 K | $108.00 M | -2.97% | 1.92% |
| GEODE CAPITAL MANAGEMENT, LLC | 05/15/2026 | 42.12 K | $92.56 M | 1.45% | 1.65% |
| T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 05/15/2026 | 41.51 K | $91.20 M | -6.84% | 1.63% |
| GENDELL JEFFREY L | 05/15/2026 | 37.81 K | $83.08 M | 16.28% | 1.48% |
| REINHART PARTNERS, INC. | 04/13/2026 | 37.37 K | $82.15 M | -15.01% | 1.46% |
| LORD, ABBETT & CO. LLC | 05/14/2026 | 33.11 K | $72.74 M | -2.03% | 1.30% |
| BANK OF AMERICA CORP /DE/ | 05/18/2026 | 28.36 K | $62.30 M | -1.57% | 1.11% |
| SPEARS ABACUS ADVISORS LLC | 05/15/2026 | 28.03 K | $61.57 M | -0.31% | 1.10% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 05/15/2026 | 24.24 K | $53.26 M | 4.32% | 0.95% |
| RAYMOND JAMES FINANCIAL INC | 05/14/2026 | 23.95 K | $52.62 M | -0.08% | 0.94% |
| MRAZ, AMERINE & ASSOCIATES, INC. | 05/05/2026 | 22.18 K | $48.73 M | -1.99% | 0.87% |
| SOUTHEASTERN ASSET MANAGEMENT INC/TN/ | 05/15/2026 | 18.86 K | $41.44 M | -40.40% | 0.74% |
| ALLSPRING GLOBAL INVESTMENTS HOLDINGS, LLC | 05/05/2026 | 18.61 K | $40.55 M | -7.83% | 0.73% |
| BROWN ADVISORY INC | 05/15/2026 | 17.84 K | $39.20 M | -5.87% | 0.70% |
| GOLDMAN SACHS GROUP INC | 05/15/2026 | 15.78 K | $34.67 M | 200.06% | 0.62% |
| ENVESTNET ASSET MANAGEMENT INC | 05/04/2026 | 15.56 K | $34.19 M | -1.49% | 0.61% |
| NORTHERN TRUST CORP | 05/14/2026 | 15.50 K | $34.04 M | -7.03% | 0.61% |
| VANGUARD FIDUCIARY TRUST CO | 05/08/2026 | 15.19 K | $33.36 M | 100.00% | 0.59% |
| WELLINGTON MANAGEMENT GROUP LLP | 05/15/2026 | 14.88 K | $32.70 M | -6.55% | 0.58% |
| BOUSSARD & GAVAUDAN INVESTMENT MANAGEMENT LLP | 05/15/2026 | 13.98 K | $30.97 M | 100.00% | 0.55% |
| JANE STREET GROUP, LLC | 05/12/2026 | 13.81 K | $30.34 M | 708.90% | 0.54% |
| HORIZON KINETICS ASSET MANAGEMENT LLC | 05/15/2026 | 13.11 K | $28.81 M | -0.07% | 0.51% |
| ELKHORN PARTNERS LIMITED PARTNERSHIP | 05/14/2026 | 12.70 K | $27.90 M | -6.60% | 0.50% |
| VICTORY CAPITAL MANAGEMENT INC | 05/15/2026 | 11.15 K | $24.49 M | 77.02% | 0.44% |
| SEI INVESTMENTS CO | 05/13/2026 | 11.10 K | $24.38 M | 40.20% | 0.43% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 05/15/2026 | 10.97 K | $24.09 M | 8,206.82% | 0.43% |
| SELECT EQUITY GROUP, L.P. | 05/15/2026 | 10.56 K | $23.20 M | -46.43% | 0.41% |
| UBS GROUP AG | 05/05/2026 | 10.44 K | $22.94 M | 73.99% | 0.41% |
| QUANTINNO CAPITAL MANAGEMENT LP | 05/15/2026 | 9.78 K | $21.50 M | 34.56% | 0.38% |
| SPEECE THORSON CAPITAL GROUP INC | 04/29/2026 | 9.40 K | $20.65 M | -11.95% | 0.37% |
| GOTHAM ASSET MANAGEMENT, LLC | 05/15/2026 | 9.05 K | $19.88 M | 34.71% | 0.35% |
| D. E. SHAW & CO., INC. | 05/15/2026 | 8.91 K | $19.57 M | 3.69% | 0.35% |
| WELLS FARGO & COMPANY/MN | 05/11/2026 | 8.78 K | $19.29 M | -3.93% | 0.34% |
| BANK OF NEW YORK MELLON CORP | 05/05/2026 | 8.44 K | $18.55 M | -4.38% | 0.33% |
| AMERICAN CENTURY COMPANIES INC | 05/15/2026 | 8.31 K | $18.25 M | 828.27% | 0.33% |
| GW&K INVESTMENT MANAGEMENT, LLC | 05/13/2026 | 7.93 K | $17.41 M | -8.06% | 0.31% |
| UBS ASSET MANAGEMENT AMERICAS INC | 05/13/2026 | 7.83 K | $17.19 M | 2.23% | 0.31% |
Explore Related Stocks for Market Trends
Explore our related stocks for the latest market trends and stock news to stay informed and make better decisions.
White Mountains Insurance Group, Ltd. institutional Ownership - FAQ's
During the previous two years, 517 institutional investors and hedge funds held shares of White Mountains Insurance Group, Ltd.. The most heavily invested institutionals were:
DIMENSIONAL FUND ADVISORS LP: 156,618
Neuberger Berman Group LLC: 124,715
River Road Asset Management, LLC: 120,519
BlackRock, Inc.: 113,328
COOKE & BIELER LP: 104,857
FULLER & THALER ASSET MANAGEMENT, INC.: 104,561
86.50% of White Mountains Insurance Group, Ltd. stock is owned by institutional investors.
Institutional investors have bought a total of 3.12 M shares in the last 24 months. This purchase volume represents approximately $6.69 B in transactions.