Chie-Min Christopher Koo files SEC Form 4 disclosures for RBB Bancorp. They have made 8 open-market trades across 1 company since 2019, most recently 2023-06-09.
CIK 0001711528
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 | Shares | Value |
|---|---|---|
| RBB | 41,628 | $1.1M |
Shares reported on the most recent Form 4, priced at the 2023-06-12 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| RBB | SELL | 2020-08-10 | 2020-08-10 | $13.55 | $8K | -4.4% | -10.2% | +7.5% |
| RBB | SELL | 2020-08-07 | 2020-08-10 | $13.26 | $15K | -4.4% | -10.2% | +7.5% |
| RBB | SELL | 2020-08-06 | 2020-08-10 | $12.82 | $4K | -4.4% | -10.2% | +7.5% |
| RBB | SELL | 2020-08-05 | 2020-08-07 | $12.86 | $4K | +2.8% | -0.6% | +7.3% |
| RBB | SELL | 2019-11-27 | 2019-11-27 | $20.33 | $8K | +0.8% | +4.5% | -8.8% |
| RBB | SELL | 2019-11-11 | 2019-11-12 | $20.58 | $2K | -1.3% | +3.1% | -1.1% |
| RBB | SELL | 2019-11-08 | 2019-11-08 | $20.81 | $19K | -3.3% | -1.5% | -2.5% |
| RBB | SELL | 2019-02-04 | 2019-02-21 | $20.08 | $20K | +1.3% | -15.7% | -9.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.