Mark L. First is Director at VERASUN ENERGY CORP (VSE). They have made 12 open-market trades across 2 companies since 2006, most recently 2026-06-10.
CIK 0001256578
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 12 sales. Too few scored purchases to measure a record yet.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 33% | 67% | 67% |
| Avg Move | +1.2% | -1.0% | -3.9% |
| Scored | 9 | 9 | 9 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PETQ | SELL | 2021-03-12 | 2021-03-12 | $35.19 | $52.8M | -3.3% | +0.8% | +10.4% |
| ADUS | SELL | 2020-12-08 | 2020-12-10 | $100.75 | $51.8M | +9.9% | +15.9% | -1.0% |
| ADUS | SELL | 2020-08-13 | 2020-08-14 | $94.26 | $44.8M | -1.0% | -0.3% | +6.0% |
| ADUS | SELL | 2019-11-13 | 2019-11-15 | $82.55 | $57.0M | +10.0% | +7.2% | +19.4% |
| ADUS | SELL | 2019-06-11 | 2019-06-12 | $74.08 | $32.6M | +4.6% | +8.2% | +9.8% |
| ADUS | SELL | 2018-11-28 | 2018-11-29 | $72.20 | $13.5M | +0.5% | -9.9% | -11.9% |
| ADUS | SELL | 2018-11-27 | 2018-11-29 | $72.46 | $39.1M | +0.5% | -9.9% | -11.9% |
| ADUS | SELL | 2018-11-27 | 2018-11-29 | $74.16 | $7.3M | +0.5% | -9.9% | -11.9% |
| PETQ | SELL | 2018-10-01 | 2018-10-02 | $37.15 | $136.6M | -5.3% | -7.8% | -34.7% |
| ADUS | SELL | 2018-08-20 | 2018-08-20 | $59.00 | $60.5M | +8.5% | +17.3% | +15.5% |
| ADUS | SELL | 2017-05-11 | 2017-05-15 | $39.40 | $6.3M | -1.6% | -3.4% | -9.1% |
| ADUS | SELL | 2015-09-11 | 2015-09-22 | $32.71 | $4.1M | -6.9% | -0.6% | -0.6% |
| VSE | SELL · 10b5-1 | 2007-05-18 | 2007-05-22 | $17.01 | $914K | N/A | N/A | N/A |
| VSE | SELL · 10b5-1 | 2006-12-19 | 2006-12-21 | $22.42 | $591K | N/A | N/A | N/A |
| VSE | SELL · 10b5-1 | 2006-12-19 | 2006-12-21 | $22.22 | $1.1M | N/A | N/A | N/A |
| VSE | SELL · 10b5-1 | 2006-12-19 | 2007-01-03 | $21.98 | $223K | N/A | N/A | N/A |
| VSE | SELL · 10b5-1 | 2006-12-18 | 2006-12-20 | $21.97 | $1.1M | N/A | N/A | N/A |
| VSE | SELL · 10b5-1 | 2006-12-18 | 2006-12-20 | $22.13 | $589K | N/A | N/A | N/A |
| VSE | SELL · 10b5-1 | 2006-12-15 | 2006-12-19 | $22.55 | $1.3M | N/A | N/A | N/A |
| VSE | SELL · 10b5-1 | 2006-12-15 | 2006-12-19 | $22.25 | $808K | N/A | N/A | N/A |
| VSE | SELL · 10b5-1 | 2006-12-15 | 2006-12-19 | $22.68 | $937K | N/A | N/A | N/A |
| VSE | SELL · 10b5-1 | 2006-12-14 | 2006-12-18 | $21.99 | $1.9M | N/A | N/A | N/A |
| VSE | SELL · 10b5-1 | 2006-12-14 | 2006-12-19 | $21.82 | $417K | N/A | N/A | N/A |
| VSE | SELL · 10b5-1 | 2006-12-13 | 2006-12-19 | $21.90 | $396K | N/A | N/A | N/A |
| VSE | SELL · 10b5-1 | 2006-12-13 | 2006-12-19 | $21.77 | $1.3M | 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.