White Mountains Insurance GP – Investors and Politicians Who Own It
WTM
Investors who own it
2 tracked investors, $35.7M in shares, each from their latest 13F.
| Investor | Value | Share of portfolio |
|---|---|---|
Mason HawkinsSoutheastern Asset Management, Q2 2026 | $35.5M | 1.85% |
Barry RitholtzRitholtz Wealth Management, Q2 2026 | $261.3K | 0.00% |
Politicians who own it
Estimated from annual disclosures and trades; values are rough estimates.
| Politician | Est. value | Share of portfolio |
|---|---|---|
J. French HillR-AR · House | $73.4K | 0.43% |
Investors buying and selling
| Investor | Action | Shares now |
|---|---|---|
| Mason Hawkins | Reduced −3.9% | 18,484 |
| Barry Ritholtz | Reduced −1.7% | 236 |
Politicians trading it
Latest Congress trades disclosed under the STOCK Act; amounts are ranges.
| Politician | Action | Traded |
|---|---|---|
J. French HillR-AR · House | Bought$50K–$100K | Jun 23, 2025disclosed Jul 24, 2025 |