WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) — Institutional Holders, Q2 2026 (page 2)
356 institutional investment managers reported a WTM position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $4.6B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 101 to 200. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
WTM 13F holders ranked 101–200 of 356
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 101 | Midwest Professional Planners, LTD.#101 · 1,164 sh | 1,164 | $2.4M | 0.47% | +194.7% |
| 102 | PECAUT#102 · 1,142 sh | 1,142 | $2.4M | 0.72% | -2.6% |
| 103 | Walleye Capital#103 · 1,130 sh | 1,130 | $2.3M | <0.01% | New |
| 104 | Jupiter Topco#104 · 1,123 sh | 1,123 | $2.3M | <0.01% | — |
| 105 | Police & Firemen's Retirement System of New Jersey#105 · 1,112 sh | 1,112 | $2.3M | 0.02% | +2.8% |
| 106 | LEUTHOLD GROUP#106 · 1,104 sh | 1,104 | $2.3M | 0.23% | +4.9% |
| 107 | Autumn Glory Partners#107 · 1,080 sh | 1,080 | $2.2M | — | 0.0% |
| 108 | HARBOR CAPITAL ADVISORS#108 · 1,079 sh | 1,079 | $2.2M | — | +3.9% |
| 109 | MERCER GLOBAL ADVISORS#109 · 1,055 sh | 1,055 | $2.2M | <0.01% | +21.8% |
| 110 | Treasurer of the State of North Carolina#110 · 1,026 sh | 1,026 | $2.1M | <0.01% | -2.8% |
| 111 | ALLIANCEBERNSTEIN L.P.#111 · 944 sh | 944 | $2.1M | <0.01% | -0.9% |
| 112 | Vanguard Global Advisers#112 · 940 sh | 940 | $1.9M | <0.01% | -6.2% |
| 113 | CAPTRUST FINANCIAL ADVISORS#113 · 927 sh | 927 | $1.9M | <0.01% | -24.9% |
| 114 | BRAVE ASSET MANAGEMENT#114 · 924 sh | 924 | $1.9M | 0.41% | 0.0% |
| 115 | State of New Jersey Common Pension Fund D#115 · 914 sh | 914 | $1.9M | <0.01% | -19.5% |
| 116 | Squarepoint Ops#116 · 905 sh | 905 | $1.9M | <0.01% | New |
| 117 | Handelsbanken Fonder AB#117 · 880 sh | 880 | $1.8M | <0.01% | 0.0% |
| 118 | Ethic#118 · 860 sh | 860 | $1.8M | 0.02% | +7.5% |
| 119 | Quadrature Capital Ltd#119 · 859 sh | 859 | $1.8M | 0.02% | -29.2% |
| 120 | Zurcher Kantonalbank (Zurich Cantonalbank)#120 · 851 sh | 851 | $1.8M | <0.01% | -6.8% |
| 121 | O'SHAUGHNESSY ASSET MANAGEMENT#121 · 841 sh | 841 | $1.7M | <0.01% | -16.7% |
| 122 | Summit Trail Advisors#122 · 817 sh | 817 | $1.7M | 0.02% | +7.5% |
| 123 | Sequoia Financial Advisors#123 · 810 sh | 810 | $1.7M | <0.01% | -1.7% |
| 124 | PRIVATE MANAGEMENT GROUP#124 · 806 sh | 806 | $1.7M | 0.04% | -2.1% |
| 125 | FMR#125 · 786 sh | 786 | $1.6M | <0.01% | -13.1% |
| 126 | TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY#126 · 767 sh | 767 | $1.6M | 0.01% | 0.0% |
| 127 | NISA INVESTMENT ADVISORS#127 · 754 sh | 754 | $1.6M | — | +2.2% |
| 128 | Farther Finance Advisors#128 · 723 sh | 723 | $1.5M | — | +10.2% |
| 129 | PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO#129 · 721 sh | 721 | $1.5M | <0.01% | -4.0% |
| 130 | TRUIST FINANCIAL#130 · 716 sh | 716 | $1.5M | <0.01% | +4.7% |
| 131 | BRANDES INVESTMENT PARTNERS#131 · 701 sh | 701 | $1.5M | 0.01% | +0.4% |
| 132 | Texas Yale Capital#132 · 687 sh | 687 | $1.4M | 0.03% | 0.0% |
| 133 | PARK AVENUE SECURITIES#133 · 674 sh | 674 | $1.4M | — | -4.1% |
| 134 | Arizona State Retirement System#134 · 664 sh | 664 | $1.4M | <0.01% | -5.0% |
| 135 | OSAIC#135 · 652 sh | 652 | $1.4M | <0.01% | +0.3% |
| 136 | VOYA INVESTMENT MANAGEMENT#136 · 645 sh | 645 | $1.3M | <0.01% | +172.2% |
| 137 | Vident Advisory#137 · 635 sh | 635 | $1.3M | <0.01% | New |
| 138 | Vanguard Investments Australia, Ltd.#138 · 622 sh | 622 | $1.3M | <0.01% | -0.2% |
| 139 | Nelson, Van Denburg & Campbell Wealth Management Group#139 · 619 sh | 619 | $1.3M | — | +0.3% |
| 140 | MANUFACTURERS LIFE INSURANCE COMPANY, THE#140 · 617 sh | 617 | $1.3M | <0.01% | +0.5% |
| 141 | Corient Private Wealth#141 · 611 sh | 611 | $1.3M | <0.01% | -56.3% |
| 142 | WORLDQUANT MILLENNIUM ADVISORS#142 · 591 sh | 591 | $1.2M | <0.01% | New |
| 143 | BARCLAYS PLC#143 · 583 sh | 583 | $1.2M | <0.01% | +9.0% |
| 144 | KLP KAPITALFORVALTNING AS#144 · 565 sh | 565 | $1.2M | <0.01% | 0.0% |
| 145 | WILEY BROS.-AINTREE CAPITAL#145 · 551 sh | 551 | $1.1M | <0.01% | -7.9% |
| 146 | Chicago Partners Investment Group#146 · 523 sh | 523 | $1.1M | — | +12.0% |
| 147 | B.O.S.S. Retirement Advisors#147 · 533 sh | 533 | $1.1M | — | 0.0% |
| 148 | Lexington Hill Partners#148 · 520 sh | 520 | $1.1M | — | 0.0% |
| 149 | REGIONS FINANCIAL#149 · 517 sh | 517 | $1.1M | <0.01% | 0.0% |
| 150 | TD ASSET MANAGEMENT#150 · 512 sh | 512 | $1.1M | <0.01% | -45.1% |
| 151 | MIRABELLA FINANCIAL SERVICES LLP#151 · 495 sh | 495 | $1.0M | 0.10% | New |
| 152 | CITIGROUP#152 · 483 sh | 483 | $1.0M | <0.01% | -65.5% |
| 153 | PNC FINANCIAL SERVICES GROUP#153 · 482 sh | 482 | $999.4K | <0.01% | -11.7% |
| 154 | BANK OF MONTREAL#154 · 481 sh | 481 | $997.3K | <0.01% | +11.1% |
| 155 | Sendero Wealth Management#155 · 481 sh | 481 | $997.3K | — | -14.4% |
| 156 | Janney Montgomery Scott#156 · 476 sh | 476 | $987.0K | <0.01% | -6.7% |
| 157 | Parker Investment Management#157 · 475 sh | 475 | $984.9K | 0.08% | 0.0% |
| 158 | Jain Global#158 · 467 sh | 467 | $968.3K | <0.01% | +17.9% |
| 159 | Pathstone#159 · 458 sh | 458 | $949.6K | <0.01% | -0.4% |
| 160 | Legacy Advisors#160 · 448 sh | 448 | $928.9K | — | -0.4% |
| 161 | SRS Capital Advisors#161 · 447 sh | 447 | $928.8K | <0.01% | +62.5% |
| 162 | Rockefeller Capital Management L.P.#162 · 433 sh | 433 | $898.0K | <0.01% | +66.5% |
| 163 | ALLSTATE#163 · 433 sh | 433 | $897.8K | <0.01% | -25.5% |
| 164 | DEUTSCHE BANK AG\#164 · 427 sh | 427 | $885.3K | <0.01% | +67.5% |
| 165 | Amundi#165 · 425 sh | 425 | $881.2K | <0.01% | -30.9% |
| 166 | Savant Capital#166 · 387 sh | 387 | $826.3K | <0.01% | +94.5% |
| 167 | Resona Asset Management ,Ltd.#167 · 394 sh | 394 | $816.9K | <0.01% | -11.1% |
| 168 | TEACHER RETIREMENT SYSTEM OF TEXAS#168 · 389 sh | 389 | $806.5K | <0.01% | +130.2% |
| 169 | Sanctuary Advisors#169 · 387 sh | 387 | $802.6K | <0.01% | -7.4% |
| 170 | MPS Loria Financial Planners#170 · 383 sh | 383 | $794.1K | — | New |
| 171 | Pictet Asset Management Holding SA#171 · 380 sh | 380 | $787.9K | <0.01% | -11.6% |
| 172 | KLINGENSTEIN FIELDS#172 · 380 sh | 380 | $787.9K | 0.03% | 0.0% |
| 173 | Storgate#173 · 370 sh | 370 | $767.2K | 0.16% | +198.4% |
| 174 | Cetera Investment Advisers#174 · 363 sh | 363 | $753.0K | <0.01% | +4.9% |
| 175 | Aquatic Capital Management#175 · 361 sh | 361 | $748.5K | 0.03% | -60.4% |
| 176 | Roundview Capital#176 · 358 sh | 358 | $742.4K | 0.04% | 0.0% |
| 177 | US BANCORP \DE\#177 · 354 sh | 354 | $734.0K | <0.01% | +158.4% |
| 178 | Atria Investments#178 · 349 sh | 349 | $723.9K | — | +54.4% |
| 179 | Bryant Woods Investment Advisors#179 · 340 sh | 340 | $705.0K | — | 0.0% |
| 180 | GLENMEDE NA#180 · 340 sh | 340 | $705.0K | <0.01% | -4.0% |
| 181 | American Capital Advisory#181 · 338 sh | 338 | $700.8K | 0.26% | -1.2% |
| 182 | Lummis Asset Management#182 · 325 sh | 325 | $688.5K | 0.41% | 0.0% |
| 183 | Universal- Beteiligungs- und Servicegesellschaft mbH#183 · 332 sh | 332 | $688.4K | <0.01% | -18.0% |
| 184 | Legacy Wealth Asset Management#184 · 329 sh | 329 | $682.1K | — | +2.5% |
| 185 | STATE OF WISCONSIN INVESTMENT BOARD#185 · 323 sh | 323 | $669.7K | <0.01% | +31.3% |
| 186 | VIRGINIA RETIREMENT SYSTEMS ET Al#186 · 320 sh | 320 | $663.5K | <0.01% | New |
| 187 | WEALTH ENHANCEMENT ADVISORY SERVICES#187 · 289 sh | 289 | $630.4K | — | +64.2% |
| 188 | Brown Miller Wealth Management#188 · 298 sh | 298 | $618.8K | 0.16% | 0.0% |
| 189 | Mount Yale Investment Advisors#189 · 294 sh | 294 | $609.6K | 0.01% | -1.0% |
| 190 | CHOREO#190 · 294 sh | 294 | $609.6K | <0.01% | -15.0% |
| 191 | BTG Pactual Asset Management US#191 · 289 sh | 289 | $599.2K | 0.04% | New |
| 192 | COMMONWEALTH EQUITY SERVICES#192 · 281 sh | 281 | $582.9K | <0.01% | +2.6% |
| 193 | Essex Savings Bank#193 · 275 sh | 275 | $570.2K | — | 0.0% |
| 194 | SG Americas Securities#194 · 266 sh | 266 | $552.0K | <0.01% | +32.3% |
| 195 | PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO#195 · 263 sh | 263 | $545.0K | <0.01% | -25.5% |
| 196 | Vanguard Personalized Indexing Management#196 · 257 sh | 257 | $532.9K | <0.01% | -18.2% |
| 197 | Vestcor#197 · 255 sh | 255 | $529.0K | 0.01% | 0.0% |
| 198 | OneAscent Financial Services#198 · 253 sh | 253 | $524.6K | 0.03% | +11.0% |
| 199 | GAMMA Investing#199 · 249 sh | 249 | $516.3K | — | +23.3% |
| 200 | EQUITABLE#200 · 242 sh | 242 | $501.8K | — | -70.8% |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.