William C. Fallon is CEO & President at MBIA INC (MBI). They have made 7 open-market trades across 1 company since 2007, most recently 2026-03-04.
CIK 0001334233
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
7 open-market purchases totalling $2.2M since 2007, never a sale. Across 7 scored buys the stock is up 2.0% at ninety days, and 0.3 points ahead of the S&P over the same stretch.
7 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| MBI | 2,826,660 | $12.5M |
Shares reported on the most recent Form 4, priced at the 2026-03-05 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 14% | 100% | 100% |
| Avg Move | -4.8% | +2.6% | +2.0% |
| Alpha | -0.1% | +2.0% | +0.3% |
| Scored | 7 | 7 | 7 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MBI | BUY | 2020-11-18 | 2020-11-19 | $6.17 | $617K | +3.1% | +6.0% | +1.6% |
| MBI | BUY | 2015-08-07 | 2015-08-10 | $6.30 | $945K | -6.1% | +2.0% | +2.0% |
| MBI | BUY | 2011-05-19 | 2011-05-20 | $8.95 | $179K | -6.1% | +2.0% | +2.0% |
| MBI | BUY | 2010-08-25 | 2010-08-26 | $8.72 | $218K | -6.1% | +2.0% | +2.0% |
| MBI | BUY | 2009-03-05 | 2009-03-06 | $2.39 | $120K | -6.1% | +2.0% | +2.0% |
| MBI | BUY | 2008-03-04 | 2008-03-06 | $12.43 | $87K | -6.1% | +2.0% | +2.0% |
| MBI | BUY | 2007-11-07 | 2007-11-08 | $34.60 | $69K | -6.1% | +2.0% | +2.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.