Diane L Dewbrey insider trades: Mbia (MBI) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Diane reports to the SEC
Open-market buys and sales
11 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 21, 2025 | MBI | ↓ Sell | 4,975 | $7.15 | $36K | Direct | Aug 25, 2025 (4d) |
| Mar 8, 2022 | BBSI | ↑ Buy | 325 | $73.04 | $24K | Direct | Mar 8, 2022 (0d) |
| May 14, 2012 | HTCO | ↑ Buy | 987 | $9.83 | $10K | By Spouse | May 16, 2012 (2d) |
| May 14, 2012 | HTCO | ↑ Buy | 244 | $9.85 | $2K | By spouse | May 16, 2012 (2d) |
| May 7, 2012 | HTCO | ↑ Buy | 1,000 | $10.00 | $10K | By spouse | May 8, 2012 (1d) |
| May 7, 2012 | HTCO | ↑ Buy | 500 | $9.95 | $5K | By Spouse | May 8, 2012 (1d) |
| May 4, 2012 | HTCO | ↑ Buy | 3,904 | $10.00 | $39K | By Spouse | May 7, 2012 (3d) |
| May 4, 2012 | HTCO | ↑ Buy | 96 | $9.99 | $959 | By spouse | May 7, 2012 (3d) |
| Sep 7, 2011 | HTCO | ↑ Buy | 3,000 | $9.24 | $28K | By Spouse | Sep 9, 2011 (2d) |
| Aug 8, 2011 | HTCO | ↑ Buy | 1,000 | $9.62 | $10K | Direct | Aug 9, 2011 (1d) |
| May 20, 2011 | HTCO | ↑ Buy | 401 | $9.99 | $4K | Direct | May 23, 2011 (3d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About Diane L Dewbrey's insider trades
Diane L Dewbrey is a director at Mbia (MBI). Since May 20, 2011, Diane has reported 10 open-market purchases worth $132K and 1 sale worth $36K on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include grants and awards (37 filings), option exercises (3 filings), conversions (1 filing), other transactions (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 MBI insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.