William C. Long is Senior VP & General Counsel at DIAMOND OFFSHORE DRILLING INC (DO). They have made 5 open-market trades across 2 companies since 2007, most recently 2021-04-15.
CIK 0001249089
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.
0 open-market purchases, against 5 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CKH | SELL | 2017-09-14 | 2017-09-14 | $41.06 | $22K | +9.3% | +9.7% | +13.1% |
| DO | SELL | 2014-05-16 | 2014-05-19 | $49.68 | $16K | -16.0% | +4.8% | +4.8% |
| DO | SELL | 2007-05-18 | 2007-05-22 | $94.75 | $121K | -16.0% | +4.8% | +4.8% |
| DO | SELL | 2007-02-09 | 2007-02-13 | $84.72 | $53K | -16.0% | +4.8% | +4.8% |
| DO | SELL | 2007-02-09 | 2007-02-13 | $84.72 | $29K | -16.0% | +4.8% | +4.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.