WHITE MTNS INS GROUP LTD COM is a security (CUSIP G9618E107) tracked across SEC portfolio filings. 370 institutional managers reported $4.5B on Form 13F as of 2026-06-30; 15 registered fund positions totaling $111.8M via N-PORT as of 2026-06-30.
Showing 15 of 370 managers by value.
| Manager | Location | Value | Shares |
|---|---|---|---|
| VANGUARD GROUP INC | Valley Forge, PA | $489.8M | 235,698 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $344.1M | 156,618 |
| NEUBERGER BERMAN GROUP LLC | NEW YORK, NY | $274.0M | 124,715 |
| BlackRock, Inc. | New York, NY | $249.0M | 113,328 |
| River Road Asset Management, LLC | LOUISVILLE, KY | $240.3M | 115,880 |
| FULLER & THALER ASSET MANAGEMENT, INC. | San Mateo, CA | $229.7M | 104,561 |
| FIDUCIARY MANAGEMENT INC /WI/ | MILWAUKEE, WI | $186.9M | 85,066 |
| COOKE & BIELER LP | PHILADELPHIA, PA | $176.5M | 85,120 |
| Wallace Capital Management Inc. | DALLAS, TX | $173.1M | 78,795 |
| MORGAN STANLEY | NEW YORK, NY | $130.3M | 59,295 |
| LONDON CO OF VIRGINIA | RICHMOND, VA | $125.5M | 57,131 |
| Boston Partners | BOSTON, MA | $115.3M | 55,569 |
| STATE STREET CORP | BOSTON, MA | $108.0M | 49,158 |
| GEODE CAPITAL MANAGEMENT, LLC | BOSTON, MA | $92.6M | 42,119 |
| REINHART PARTNERS, LLC. | MEQUON, WI | $92.3M | 44,480 |
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| VANGUARD EXTENDED MARKET INDEX FUND | VANGUARD INDEX FUNDS | $60.0M | 7.36% |
| Longleaf Partners Small Cap Fund | Longleaf Partners Funds Trust | $33.5M | 481.44% |
| Bridge Builder Tax Managed Small/Mid Cap Fund | Bridge Builder Trust | $9.0M | 29.70% |
| VANGUARD BALANCED INDEX FUND | VANGUARD VALLEY FORGE FUNDS | $3.0M | 0.51% |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND | VANGUARD INSTITUTIONAL INDEX FUNDS | $2.6M | 0.85% |
| Nuveen Core Equity Alpha Fund | Nuveen Core Equity Alpha Fund | $1.4M | 51.64% |
| VANGUARD TAX-MANAGED BALANCED FUND | VANGUARD TAX-MANAGED FUNDS | $1.1M | 0.97% |
| Vericimetry U.S. Small Cap Value Fund | VERICIMETRY FUNDS | $648K | 38.56% |
| EAGLE CAPITAL GROWTH FUND, INC. | EAGLE CAPITAL GROWTH FUND, INC. | $622K | 128.82% |
| First Investors Hedged U.S. Equity Opportunities Fund | FIRST INVESTORS EQUITY FUNDS | $229K | 18.49% |
| TIAA Separate Account VA-1 - Stock Index Account | TIAA Separate Account VA-1 | $119K | 0.92% |
| Dynamic Allocation Fund | Meeder Funds | $70K | 1.19% |
| Humankind U.S. Stock ETF | Humankind Benefit Corp | $7K | 0.41% |
| RENN Fund, Inc. | RENN FUND, INC. | $4K | 1.88% |
| VANGUARD MARKET NEUTRAL FUND | VANGUARD MONTGOMERY FUNDS | $-455K | -10.54% |