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White Mountains Insurance Group (WTM) Ownership Overview
3.24% Insiders
36.39% Mutual Funds
6.80% Other Institutional Investors
19.58% ETFs
33.99% Public Companies and
Individual Investors
The ownership structure of White Mountains Insurance Group (WTM) stock is a mix of institutional, retail, and individual investors. Approximately 62.77% of the company’s stock is owned by Institutional Investors, 3.24% is owned by Insiders, and 33.99% is owned by Public Companies and Individual Investors.
Recent Insider Trading Activity
Date | Name | Activity | Value |
|---|---|---|---|
Dec 22, 2025 | xxxxxxxxxxxxx | $10250000 | |
Dec 16, 2025 | xxxxxxxxxxxxx | $338004 |
Recent Hedge Fund Trading Activity
Date | Firm | Activity | Value |
|---|---|---|---|
Jun 30, 2026 | xxxxxxxxxxxxx | $1453446 | |
Jun 30, 2026 | xxxxxxxxxxxxx | $14059658 | |
Jun 30, 2026 | xxxxxxxxxxxxx | $14074171 | |
Jun 30, 2026 | xxxxxxxxxxxxx | $35463263 |
Top Shareholders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 191,329 | Institution | 8.02% | 422,565,403 | |
| 190,819 | Institution | 8.00% | 421,439,027 | |
| 141,213 | Institution | 5.92% | 311,880,208 | |
| 120,468 | Institution | 5.05% | 266,063,215 | |
| 87,598 | Institution | 3.67% | 193,467,191 | |
| 82,474 | Institution | 3.46% | 182,150,427 | |
| 46,238 | Institution | 1.94% | 102,120,322 | |
| 43,295 | Institution | 1.81% | 95,620,471 | |
| 38,176 | Institution | 1.60% | 84,314,750 | |
| 37,736 | Institution | 1.58% | 83,342,975 |
Top Mutual Fund Holders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 190,819 | Institution | 8.00% | 421,439,027 | |
| 141,213 | Institution | 5.92% | 311,880,208 | |
| 87,598 | Institution | 3.67% | 193,467,191 | |
| 82,474 | Institution | 3.46% | 182,150,427 | |
| 46,238 | Institution | 1.94% | 102,120,322 | |
| 38,176 | Institution | 1.60% | 84,314,750 | |
| 33,400 | Institution | 1.40% | 73,766,572 | |
| 33,000 | Institution | 1.38% | 72,883,140 | |
| 22,559 | Institution | 0.95% | 49,823,356 | |
| 19,309 | Institution | 0.81% | 42,645,471 |
Top ETF Holders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 71,265 | Institution | 2.99% | 142,992,510 | |
| 50,989 | Institution | 2.14% | 102,308,919 | |
| 46,713 | Institution | 1.96% | 103,338,499 | |
| 36,324 | Institution | 1.52% | 80,355,953 | |
| 35,563 | Institution | 1.49% | 78,672,469 | |
| 33,215 | Institution | 1.39% | 66,645,565 | |
| 26,351 | Institution | 1.10% | 52,873,018 | |
| 23,729 | Institution | 0.99% | 52,493,294 | |
| 12,435 | Institution | 0.52% | 27,508,707 | |
| 12,145 | Institution | 0.51% | 26,867,169 |
FAQ
Who Owns White Mountains Insurance Group (WTM)?
According to the latest TipRanks data, approximately 6.80% of the company's stock is held by institutional investors, 3.24% is held by insiders, and 33.99% is held by retail investors.
What percentage of White Mountains Insurance Group (WTM) stock is held by institutional investors?
According to the latest TipRanks data, approximately 6.80% of White Mountains Insurance Group (WTM) stock is held by institutional investors.
What percentage of White Mountains Insurance Group (WTM) stock is held by retail investors?
According to the latest TipRanks data, approximately 33.99% of White Mountains Insurance Group (WTM) stock is held by retail investors.
Who owns the most shares of White Mountains Insurance Group (WTM)?
Vanguard owns the most shares of White Mountains Insurance Group (WTM).
What is the significance of the ownership structure for a publicly traded company?
The ownership structure can impact the company's decision making, as large institutional investors may exert influence on the company's management and can also affect the company's stock price with their buying and selling patterns.