White Mountains Insurance Group LTD (WTM)
- Sector
- Financial Services
- Industry
- Insurance - Property & Casualty
- Last price
- $2098.01
- As of
Kresmion compiles this page from WTM's SEC filings, its 13F institutional holders and the market events Kresmion detects, each linked to its source.
WHITE MOUNTAINS INSURANCE GROUP LTD (WTM): 3 institutional managers tracked by Kresmion reported non-option positions in their 2026Q2 Form 13F filings, and the most recent SEC filing on record for the company is a Form 8-K filed 2026-08-27.
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Preview the WTM dossierActive signals for WTM
- highINSTITUTIONAL_SURGE
CITADEL ADVISORS LLC added +498% to WTM (2026Q2)
- highINSTITUTIONAL_EXIT
MILLENNIUM MANAGEMENT LLC cut 63% of WTM (2026Q2)
- mediumEARNINGS_BEAT
Q2-2026: Beat consensus by 6.4%, EPS $80.58 vs $75.75 estimate
- mediumEARNINGS_MISS
Q3-2024: Missed consensus by 30.3% - EPS $69.68 vs $99.99 estimate
- mediumEARNINGS_MISS
Q4-2024: Missed consensus by 52.4% - EPS $-50.78 vs $-33.33 estimate
FREE, NO ACCOUNT
Every signal on WTM, as it fires
You are seeing 5 of 11 signals recorded on WTM since 2026-05-26.
The five above landed across 3 days. The other 6 were recorded on 1 other days.
No fixed schedule: it goes out when the data has something in it. Unsubscribe anytime. We never sell your data.
Largest reported share positions in WTM (2026Q2)
| Manager / security | Market value | % portfolio | QoQ |
|---|---|---|---|
| CITADEL ADVISORS LLCCUSIP G9618E107 · 2026Q2 | $14.8M | 0.00% | , |
| D. E. Shaw & Co., Inc.CUSIP G9618E107 · 2026Q2 | $13.7M | 0.01% | , |
| MILLENNIUM MANAGEMENT LLCCUSIP G9618E107 · 2026Q2 | $296K | 0.00% | , |
Quarterly SEC Form 13F disclosures from the managers Kresmion tracks, not a complete ownership ranking. Non-option holdings only; reported put and call positions are excluded. Different securities are labeled by CUSIP. Values are reporting-period snapshots, not current position values. Filings can arrive up to 45 days after quarter-end.
Recent SEC filings, WTM
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 10-QSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 10-QSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 10-KSEC EDGAR ↗
WTM against its peers
WTM's net margin of 29.6% ranks in the 91st percentile of 16 Insurance - Property & Casualty sub-industry peers, fiscal period ending 2025-12-31.
| Metric | WTM | Peer median | Percentile | n |
|---|---|---|---|---|
| Revenue FY | 3.7B USD | 1.0B USD | 85 | 16 |
| Net margin | 29.6% | 8.8% | 91 | 16 |
| Return on equity | 20.4% | 12.5% | 74 | 16 |
| P / E | 4.9x | 12.5x | 5 | 10 |
| 1 year | 8.5% | -6.5% | 61 | 13 |
Peers (17): MCY, KNSL, SLDE, ORI, PRCH, STC, UFCS, PRA, ASIC, HIPO, FRFHF, DGICA, GBLI, NODK, KINS, PRHI, AHL-PD. Left out: TKOMY (no annual filing), OIG (no annual filing), PINXF (no annual filing), FIGP (no annual filing). Fiscal period ending 2025-12-31. Every figure is one full fiscal year read from one annual filing (WTM: 10-K), reported in USD. Nothing is trailing twelve months and nothing is converted between currencies. Source: SEC EDGAR XBRL company facts (public domain); prices from Kresmion's daily equity market-data snapshot. Open the full comparison.
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