Mark Dubberstein is President at Bronco Drilling Company, Inc. (BRNC). They have made 4 open-market trades across 1 company since 2008, most recently 2011-06-03.
CIK 0001405106
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 4 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| BRNC | 289,749 | — |
Shares reported on the most recent Form 4, priced at the 2011-03-15 close. 1 holding could not be priced and is excluded from the total.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| BRNC | SELL | 2011-03-14 | 2011-03-15 | $10.11 | $123K | N/A | N/A | N/A |
| BRNC | SELL | 2011-03-09 | 2011-03-11 | $10.18 | $271K | N/A | N/A | N/A |
| BRNC | SELL · 10b5-1 | 2011-02-17 | 2011-02-18 | $8.15 | $245K | N/A | N/A | N/A |
| BRNC | SELL · 10b5-1 | 2011-01-13 | 2011-01-14 | $6.64 | $133K | N/A | N/A | N/A |
| BRNC | SELL · 10b5-1 | 2010-10-15 | 2010-10-19 | $4.50 | $11K | N/A | N/A | N/A |
| BRNC | SELL · 10b5-1 | 2010-10-13 | 2010-10-15 | $4.51 | $52K | N/A | N/A | N/A |
| BRNC | SELL · 10b5-1 | 2010-06-21 | 2010-06-22 | $4.51 | $81K | N/A | N/A | N/A |
| BRNC | SELL · 10b5-1 | 2010-06-15 | 2010-06-16 | $4.00 | $60K | N/A | N/A | N/A |
| BRNC | SELL | 2010-05-12 | 2010-05-14 | $4.43 | $66K | N/A | N/A | N/A |
| BRNC | SELL · 10b5-1 | 2010-02-25 | 2010-03-01 | $4.95 | $198K | N/A | N/A | N/A |
| BRNC | SELL · 10b5-1 | 2010-01-04 | 2010-01-05 | $5.12 | $43K | N/A | N/A | N/A |
| BRNC | SELL | 2009-03-19 | 2009-03-23 | $5.87 | $176K | N/A | N/A | N/A |
| BRNC | SELL · 10b5-1 | 2009-02-25 | 2009-02-27 | $4.94 | $33K | N/A | N/A | N/A |
| BRNC | SELL · 10b5-1 | 2009-01-05 | 2009-01-07 | $6.04 | $47K | N/A | N/A | N/A |
| BRNC | SELL · 10b5-1 | 2009-01-02 | 2009-01-06 | $6.25 | $34K | N/A | N/A | N/A |
| BRNC | SELL · 10b5-1 | 2008-04-11 | 2008-04-11 | $16.34 | $41K | N/A | N/A | N/A |
| BRNC | SELL · 10b5-1 | 2008-04-08 | 2008-04-09 | $16.21 | $122K | N/A | N/A | N/A |
| BRNC | SELL · 10b5-1 | 2008-01-02 | 2008-01-04 | $14.91 | $111K | N/A | N/A | N/A |
| BRNC | SELL · 10b5-1 | 2008-01-02 | 2008-01-04 | $15.14 | $148K | N/A | N/A | N/A |
| BRNC | SELL · 10b5-1 | 2008-01-02 | 2008-01-04 | $15.17 | $93K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.