Michael K. Kobayashi is President at ROSS STORES, INC. (ROST). They have made 8 open-market trades across 1 company since 2006, most recently 2026-06-01.
CIK 0001311099
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 8 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ROST | SELL | 2024-03-28 | 2024-04-01 | $147.46 | $4.1M | -3.1% | -11.5% | +0.6% |
| ROST | SELL | 2023-10-06 | 2023-10-10 | $111.73 | $4.6M | +2.4% | +8.3% | +20.2% |
| ROST | SELL | 2023-04-06 | 2023-04-10 | $106.00 | $1.3M | -0.8% | -4.6% | +2.6% |
| ROST | SELL · 10b5-1 | 2021-07-02 | 2021-07-06 | $125.13 | $8K | -6.0% | -5.0% | -13.3% |
| ROST | SELL · 10b5-1 | 2021-04-01 | 2021-04-02 | $121.35 | $6K | +4.1% | +8.4% | +2.6% |
| ROST | SELL | 2021-03-23 | 2021-03-25 | $119.17 | $348K | +3.3% | +6.4% | +1.1% |
| ROST | SELL | 2021-03-16 | 2021-03-18 | $123.39 | $2.5M | +0.4% | +6.3% | -0.8% |
| ROST | SELL | 2021-03-15 | 2021-03-16 | $123.48 | $3.3M | -0.4% | +5.1% | -2.9% |
| ROST | SELL · 10b5-1 | 2021-03-05 | 2021-03-09 | $113.79 | $23K | -3.2% | +1.7% | -4.9% |
| ROST | SELL | 2006-01-18 | 2006-01-19 | $30.23 | $13K | -1.5% | +2.6% | +2.6% |
| ROST | SELL | 2006-01-11 | 2006-01-13 | $30.31 | $233K | -1.5% | +2.6% | +2.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.