Michael S. Ciskowski is CFO & VP at VALERO ENERGY CORP/TX (VLO). They have made 16 open-market trades across 1 company since 2006, most recently 2018-01-23.
CIK 0001229538
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 16 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| VLO | SELL | 2018-01-03 | 2018-01-05 | $93.29 | $46.9M | +2.5% | -4.6% | +1.8% |
| VLO | SELL | 2017-12-20 | 2017-12-21 | $88.91 | $8.1M | +2.8% | +8.7% | +4.9% |
| VLO | SELL | 2017-09-19 | 2017-09-21 | $72.88 | $7.7M | +5.9% | +5.7% | +23.1% |
| VLO | SELL | 2016-12-08 | 2016-12-12 | $68.70 | $8.0M | +3.6% | +1.1% | +2.0% |
| VLO | SELL | 2015-08-11 | 2015-08-13 | $68.14 | $2.0M | -7.6% | -0.6% | -0.6% |
| VLO | SELL | 2015-03-19 | 2015-03-23 | $61.20 | $4.0M | -7.6% | -0.6% | -0.6% |
| VLO | SELL | 2014-03-14 | 2014-03-17 | $54.01 | $5.6M | -7.6% | -0.6% | -0.6% |
| VLO | SELL | 2014-03-06 | 2014-03-10 | $51.81 | $1.2M | -7.6% | -0.6% | -0.6% |
| VLO | SELL | 2013-02-28 | 2013-03-07 | $45.67 | $1.2M | -7.6% | -0.6% | -0.6% |
| VLO | SELL | 2012-12-19 | 2012-12-20 | $33.96 | $3.7M | -7.6% | -0.6% | -0.6% |
| VLO | SELL | 2010-05-03 | 2010-05-04 | $21.00 | $1.1M | -7.6% | -0.6% | -0.6% |
| VLO | SELL | 2009-12-09 | 2009-12-10 | $16.37 | $1.2M | -7.6% | -0.6% | -0.6% |
| VLO | SELL | 2008-06-03 | 2008-06-05 | $52.85 | $2.0M | -7.6% | -0.6% | -0.6% |
| VLO | SELL | 2007-10-12 | 2007-10-16 | $73.22 | $4.0M | -7.6% | -0.6% | -0.6% |
| VLO | SELL | 2007-05-09 | 2007-05-10 | $73.55 | $7.0M | -7.6% | -0.6% | -0.6% |
| VLO | SELL | 2006-05-05 | 2006-05-08 | $65.05 | $11.9M | -7.6% | -0.6% | -0.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.