David I. Rainer is Chairman at CU Bancorp (CUNB). They have made 6 open-market trades across 2 companies since 2013, most recently 2026-08-02.
CIK 0001555186
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 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CUNB | 213,565 | $8.0M |
| BCAL | 141,410 | $3.1M |
| Total | $11.1M |
Shares reported on the most recent Form 4, priced at the 2026-08-03 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| BCAL | SELL | 2026-05-07 | 2026-05-08 | $19.00 | $1.4M | -0.1% | +1.9% | +12.4% |
| CUNB | SELL · 10b5-1 | 2017-03-02 | 2017-03-03 | $38.32 | $894K | +3.4% | +3.7% | -4.6% |
| CUNB | SELL · 10b5-1 | 2016-12-01 | 2016-12-05 | $27.96 | $1.6M | +14.0% | +19.9% | +30.5% |
| CUNB | SELL · 10b5-1 | 2015-10-27 | 2015-10-28 | $24.39 | $244K | -4.8% | -4.3% | -8.3% |
| CUNB | SELL · 10b5-1 | 2014-03-04 | 2014-03-05 | $18.27 | $512K | -4.8% | -4.3% | -4.3% |
| CUNB | SELL · 10b5-1 | 2014-02-28 | 2014-03-03 | $18.26 | $68K | -4.8% | -4.3% | -4.3% |
| CUNB | SELL · 10b5-1 | 2014-02-26 | 2014-02-27 | $18.25 | $5K | -4.8% | -4.3% | -4.3% |
| CUNB | SELL · 10b5-1 | 2014-02-25 | 2014-02-26 | $18.25 | $53K | -4.8% | -4.3% | -4.3% |
| CUNB | SELL · 10b5-1 | 2014-02-21 | 2014-02-21 | $17.90 | $716K | -4.8% | -4.3% | -4.3% |
| CUNB | SELL · 10b5-1 | 2014-02-20 | 2014-02-20 | $18.00 | $4K | -4.8% | -4.3% | -4.3% |
| CUNB | SELL · 10b5-1 | 2014-02-18 | 2014-02-19 | $18.01 | $34K | -4.8% | -4.3% | -4.3% |
| CUNB | SELL · 10b5-1 | 2014-02-14 | 2014-02-18 | $17.97 | $203K | -4.8% | -4.3% | -4.3% |
| CUNB | SELL · 10b5-1 | 2013-11-01 | 2013-11-05 | $18.50 | $1.9M | -4.8% | -4.3% | -4.3% |
| CUNB | SELL · 10b5-1 | 2013-10-31 | 2013-11-04 | $18.81 | $71K | -4.8% | -4.3% | -4.3% |
| CUNB | SELL | 2013-08-27 | 2013-08-29 | $17.20 | $30K | -4.8% | -4.3% | -4.3% |
| CUNB | SELL | 2013-08-23 | 2013-08-27 | $17.20 | $2K | -4.8% | -4.3% | -4.3% |
| CUNB | SELL | 2013-08-21 | 2013-08-22 | $17.22 | $36K | -4.8% | -4.3% | -4.3% |
| CUNB | SELL | 2013-08-19 | 2013-08-20 | $17.33 | $317K | -4.8% | -4.3% | -4.3% |
| CUNB | SELL | 2013-08-16 | 2013-08-19 | $17.63 | $12K | -4.8% | -4.3% | -4.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.