Dennis R. Zook is VP at COSTCO WHOLESALE CORP /NEW (COST). They have made 15 open-market trades across 1 company since 2006, most recently 2018-10-02.
CIK 0001184499
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 15 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| COST | 18,680 | $19.5M |
Shares reported on the most recent Form 4, priced at the 2018-10-04 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| COST | SELL | 2017-10-25 | 2017-10-25 | $162.16 | $811K | +1.6% | +5.6% | +19.1% |
| COST | SELL | 2017-10-24 | 2017-10-24 | $161.92 | $1.6M | +3.4% | +6.6% | +20.6% |
| COST | SELL | 2017-01-10 | 2017-01-11 | $161.12 | $1.1M | +1.4% | +6.6% | +5.8% |
| COST | SELL | 2016-03-14 | 2016-03-15 | $152.96 | $623K | -0.7% | -1.5% | +0.8% |
| COST | SELL | 2015-10-12 | 2015-10-14 | $153.96 | $1.4M | -4.8% | -0.2% | -2.3% |
| COST | SELL | 2015-01-12 | 2015-01-12 | $142.54 | $1.1M | -4.8% | -0.2% | -0.2% |
| COST | SELL | 2014-10-13 | 2014-10-14 | $128.10 | $897K | -4.8% | -0.2% | -0.2% |
| COST | SELL | 2013-10-16 | 2013-10-17 | $116.37 | $1.2M | -4.8% | -0.2% | -0.2% |
| COST | SELL | 2013-04-03 | 2013-04-03 | $106.50 | $426K | -4.8% | -0.2% | -0.2% |
| COST | SELL | 2012-10-26 | 2012-10-26 | $96.29 | $1.1M | -4.8% | -0.2% | -0.2% |
| COST | SELL | 2011-10-26 | 2011-10-27 | $83.41 | $417K | -4.8% | -0.2% | -0.2% |
| COST | SELL | 2009-12-16 | 2009-12-16 | $59.09 | $295K | -4.8% | -0.2% | -0.2% |
| COST | SELL | 2006-10-16 | 2006-10-17 | $53.32 | $800K | -4.8% | -0.2% | -0.2% |
| COST | SELL | 2006-04-10 | 2006-04-11 | $55.00 | $3.3M | -4.8% | -0.2% | -0.2% |
| COST | SELL | 2006-03-06 | 2006-03-06 | $53.05 | $3.2M | -4.8% | -0.2% | -0.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.