$WTM
White Mountains Insurance Group Ltd.
XNYS•Financials•Fire, Marine & Casualty Insurance
$2054.81
▼-0.24%-$4.96
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Plans & pricingDonateWhite Mountains Insurance Group Ltd.
XNYS•Financials•Fire, Marine & Casualty Insurance
Why is WTM down today? It is at $2054.81 (-0.24%), and our scanner flagged it 16 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment WTM spikes, and full due diligence on WTM — key stats, earnings, dilution and insider activity. Free.
Our scanner flagged $WTM 16 times in the last 30 days. Create a free account to track $WTM, build a watchlist, and get instant unusual-volume alerts, with a full day of premium now and 5 more when you verify your email, no card needed.
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Here is the latest on WTM from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for WTM today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
Likely catalystStephen Klar Elected to the White Mountains Board, from an SEC filing. Read it →Latest filing4Statement of changes in beneficial ownership of securitiesAug 31, 2026 · 38 days agoSources: float & market cap via Polygon · short interest via FINRA · borrow & shortability via Alpaca · SSR from Reg SHO 201 · filings & dilution via SEC EDGAR · analysts via Nasdaq.
Auto-generated from public data for research and education. Not investment advice.
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Tanner David Allen Director | Sold (automatic/other) | -2 | sold <0.1% | 2K | n/a | Aug 31, 26 |
Klar Stephen Director | Acquired (grant/award) | +113 | n/a | 113 | n/a | Aug 26, 26 |
Campbell Reid Tarlton Director | Acquired (grant/award) | +135 | added 1.3% | 11K | n/a | May 21, 26 |
Carlson Peter M Director | Acquired (grant/award) | +135 | added 19% | 852 | n/a | May 21, 26 |
Choksi Mary C Director | Acquired (grant/award) | +135 | added 7.3% | 2K | n/a | May 21, 26 |
Chu John Director | Acquired (grant/award) | +135 | added 68% | 335 | n/a | May 21, 26 |
Dillon Margaret Director | Acquired (grant/award) | +135 | added 14% | 1K | n/a | May 21, 26 |
Gelston Philip A Director | Acquired (grant/award) | +135 | added 8.6% | 2K | n/a | May 21, 26 |
Hicks Weston M Director | Acquired (grant/award) | +190 | added 6.9% | 3K | n/a | May 21, 26 |
Shank Suzanne F. Director | Acquired (grant/award) | +135 | added 15% | 1K | n/a | May 21, 26 |
Tanner David Allen Director | Acquired (grant/award) | +135 | added 7.2% | 2K | n/a | May 21, 26 |
Seelig Robert Lawrence Officer | Sold (automatic/other) | -50 | sold 0.3% | 18K | n/a | Mar 19, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
Blend of news sentiment, today’s move, and community votes. Not investment advice.
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Here is the latest on WTM from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for WTM today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
WTM last traded at $2054.81, down 0.24% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
White Mountains Insurance Group Ltd. (WTM) is next expected to report earnings on Thursday, November 5, 2026, about 27 days away. Earnings reports often cause large overnight gaps, so many traders manage risk around the date. The date can shift until the company officially confirms it.
The WTM Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged WTM 16 times in the last 30 days.
WTM (White Mountains Insurance Group Ltd.) trades on XNYS, with a market cap of about $4.92B in the FIRE, MARINE & CASUALTY INSURANCE sector.
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge WTM for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.
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