White Mountains Insurance Group Ltd insider trades: MediaAlpha (MAX) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where White Mountains Insurance Group Ltd reports to the SEC
Open-market buys and sales
8 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Nov 4, 2026 | MAX | ↓ Sell | 5,500,391 | $13.90 | $76.5M | Indirect | Nov 5, 2026 (1d) |
| May 7, 2024 | MAX | ↓ Sell | 5,000,200 | $19.00 | $95.0M | Indirect | May 9, 2024 (2d) |
| Jun 30, 2023 | MAX | ↑ Buy | 5,916,816 | $10.00 | $59.2M | Indirect | Jun 30, 2023 (0d) |
| Mar 23, 2021 | MAX | ↓ Sell | 3,592,204 | $46.00 | $165.2M | Indirect | Mar 25, 2021 (2d) |
| Oct 30, 2020 | MAX | ↓ Sell | 3,609,894 | $19.00 | $68.6M | Indirect | Nov 3, 2020 (4d) |
| Mar 15, 2007 | OB | ↓ Sell | 645,262 | $25.85 | $16.7M | By Lone Tree Holdings Ltd. | Mar 15, 2007 (0d) |
| Nov 14, 2006 | OB | ↓ Sell | 27,600,000 | $23.56 | $650.3M | By White Mountains Holdings Bermuda Ltd. | Nov 14, 2006 (0d) |
| Sep 27, 2006 | MRH | ↓ Sell | 5,370,150 | $19.40 | $104.2M | By White Mountains Holdings Bermuda Ltd. | Sep 27, 2006 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other MAX insiders
Open-market trades in the last 12 months
About White Mountains Insurance Group Ltd's insider trades
White Mountains Insurance Group Ltd is a 10% owner of MediaAlpha (MAX). Since Sep 27, 2006, it has reported 1 open-market purchase worth $59.2M and 7 sales worth $1.18B on SEC Form 4. In the last 12 months: 1 sale ($76.5M).
Its filings also include shares returned to the company (2 filings), other transactions (2 filings), option exercises (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every MAX insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.