White Mountains Insurance Group Ltd. — Institutional Ownership
Which tracked institutions hold WTM, and how they changed the position last quarter. Latest holdings as of Jun 30, 2026. Source: SEC 13-F filings.
2
Funds holding
$898465
Total value held
Buying
2 added/new · 0 reduced
| # | Institution | Value | Shares | Δ Shares | Change (QoQ) |
|---|---|---|---|---|---|
| 1 | Allstate Corp | $897778 | 433 | +433 | NEW BUY |
| 2 | Amalgamated Financial Corp. | $687 | 605 | +605 | NEW BUY |
Aggregated across tracked institutional filers. Reported quarterly on SEC Form 13-F and may lag. For research only — not investment advice.