← United States · Coverage record
US · SEC FORM 4
RBB Bancorp
RBB · Nasdaq · CIK 0001499422 · Financial Services · Banks—Regional
INSIDER SIGNAL
0 qualifying P purchase groups
in the current 180-day scoring window
47 Form 4 transaction lines observed in the same window
6 sales · 41 option, withholding, award, gift or other lines
WHY NO ACTIVE SIGNAL?
Score anatomy
No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.
Why is there no score?
- No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
- Sales and other Form 4 activity remain visible as context and do not create a negative score.
Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
Showing the six most active owners; 12 additional owner(s) remain in Form 4 evidence.
Purchase breadth, concentration & cluster buying
These modules activate when qualifying purchases enter the 180-day research window.
SIGNAL HISTORY
Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2025-03-03 · Kao James.
Recent Form 4 activity
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
Market context
Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 530,405
- Previous report
- 589,131
- Avg daily volume
- 113,336
- Days to cover
- 4.7
FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.
Historical equity purchases
Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.
| Transaction date | Reporting owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2025-03-03 | Kao James | Purchase (P) | Common Stock, No Par Value | 612 | USD 17.36 | USD 10,624 | SEC filing ↗ |
| 2025-02-25 | Kao James | Purchase (P) | Common Stock, No Par Value | 385 | USD 17.15 | USD 6,603 | SEC filing ↗ |
| 2025-02-24 | Kao James | Purchase (P) | Common Stock, No Par Value | 5,960 | USD 17.24 | USD 102,750 | SEC filing ↗ |
| 2025-02-21 | Kao James | Purchase (P) | Common Stock, No Par Value | 3,352 | USD 17.31 | USD 58,023 | SEC filing ↗ |
| 2024-06-14 | Kao James | Purchase (P) | Common Stock, No Par Value | 7,000 | USD 17.08 | USD 119,560 | SEC filing ↗ |
| 2024-05-16 | Kao James | Purchase (P) | Common Stock, No Par Value | 5,447 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2024-03-15 | Kao James | Purchase (P) | Common Stock, No Par Value | 688 | USD 16.68 | USD 11,476 | SEC filing ↗ |
| 2024-03-14 | Kao James | Purchase (P) | Common Stock, No Par Value | 16,201 | USD 16.88 | USD 273,473 | SEC filing ↗ |
| 2024-03-13 | Kao James | Purchase (P) | Common Stock, No Par Value | 2,000 | USD 16.98 | USD 33,960 | SEC filing ↗ |
| 2024-03-06 | Kao James | Purchase (P) | Common Stock, No Par Value | 2,289 | USD 16.97 | USD 38,844 | SEC filing ↗ |
| 2024-03-04 | Kao James | Purchase (P) | Common Stock, No Par Value | 2,000 | USD 16.98 | USD 33,960 | SEC filing ↗ |
| 2024-03-01 | Kao James | Purchase (P) | Common Stock, No Par Value | 2,510 | USD 16.96 | USD 42,570 | SEC filing ↗ |
| 2024-02-29 | Kao James | Purchase (P) | Common Stock, No Par Value | 2,000 | USD 16.98 | USD 33,960 | SEC filing ↗ |
| 2024-02-28 | Kao James | Purchase (P) | Common Stock, No Par Value | 3,000 | USD 16.68 | USD 50,040 | SEC filing ↗ |
| 2024-02-27 | Kao James | Purchase (P) | Common Stock, No Par Value | 4,000 | USD 16.95 | USD 67,800 | SEC filing ↗ |
Form 4 evidence
83 transaction lines in the latest 365-day window; 492 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-08-19 | Hanson Diana | Option exercise / conversion (M) | Common Stock, No Par Value | 767 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-08-19 | Hanson Diana | Tax withholding (F) | Common Stock, No Par Value | 276 | USD 26.40 | USD 7,286 | SEC filing ↗ |
| 2026-07-20 | LEE JOHNNY C | Option exercise / conversion (M) | Common Stock, No Par Value | 5,500 | USD 0.00 | USD 0 | SEC filing ↗ |
Show recent Form 4 evidence (30 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-08-19 | Hanson Diana | Option exercise / conversion (M) | Common Stock, No Par Value | 767 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-08-19 | Hanson Diana | Tax withholding (F) | Common Stock, No Par Value | 276 | USD 26.40 | USD 7,286 | SEC filing ↗ |
| 2026-07-20 | LEE JOHNNY C | Option exercise / conversion (M) | Common Stock, No Par Value | 5,500 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-07-20 | LEE JOHNNY C | Tax withholding (F) | Common Stock, No Par Value | 1,974 | USD 26.74 | USD 52,785 | SEC filing ↗ |
| 2026-06-04 | Morris David Richard | Sale (S) | Common Stock, No Par Value | 1,946 | USD 23.99 | USD 46,685 | SEC filing ↗ |
| 2026-05-26 | Fan Gary | Sale (S) | Common Stock, No Par Value | 2,368 | USD 24.01 | USD 56,856 | SEC filing ↗ |
| 2026-05-21 | Wong Lee Joyce | Option exercise / conversion (M) | Common Stock, No Par Value | 2,762 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-21 | Wong Frank | Option exercise / conversion (M) | Common Stock, No Par Value | 2,546 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-21 | Polakoff Scott | Option exercise / conversion (M) | Common Stock, No Par Value | 2,546 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-21 | Pannu Geraldine | Option exercise / conversion (M) | Common Stock, No Par Value | 2,546 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-21 | Morris David Richard | Option exercise / conversion (M) | Common Stock, No Par Value | 1,946 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-21 | LIN CHUANG I | Option exercise / conversion (M) | Common Stock, No Par Value | 700 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-21 | Kao James | Option exercise / conversion (M) | Common Stock, No Par Value | 2,662 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-21 | Kao Christina | Option exercise / conversion (M) | Common Stock, No Par Value | 2,862 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-21 | Franko Robert | Option exercise / conversion (M) | Common Stock, No Par Value | 2,862 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-21 | Bennett Bill | Option exercise / conversion (M) | Common Stock, No Par Value | 700 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-08 | Rizkalla Mina S. | Option exercise / conversion (M) | Common Stock, No Par Value | 2,259 | USD 24.05 | USD 54,329 | SEC filing ↗ |
| 2026-05-08 | Rizkalla Mina S. | Tax withholding (F) | Common Stock, No Par Value | 812 | USD 24.05 | USD 19,529 | SEC filing ↗ |
| 2026-05-08 | Yeh Jeffrey | Option exercise / conversion (M) | Common Stock, No Par Value | 1,465 | USD 24.05 | USD 35,233 | SEC filing ↗ |
| 2026-05-08 | Yeh Jeffrey | Tax withholding (F) | Common Stock, No Par Value | 526 | USD 24.05 | USD 12,650 | SEC filing ↗ |
| 2026-05-08 | LEE JOHNNY C | Option exercise / conversion (M) | Common Stock, No Par Value | 4,356 | USD 24.05 | USD 104,762 | SEC filing ↗ |
| 2026-05-08 | LEE JOHNNY C | Tax withholding (F) | Common Stock, No Par Value | 1,563 | USD 24.05 | USD 37,590 | SEC filing ↗ |
| 2026-05-08 | Huang Tsu Te | Option exercise / conversion (M) | Common Stock, No Par Value | 671 | USD 24.05 | USD 16,138 | SEC filing ↗ |
| 2026-05-08 | Huang Tsu Te | Tax withholding (F) | Common Stock, No Par Value | 241 | USD 24.05 | USD 5,796 | SEC filing ↗ |
| 2026-05-08 | HOPKINS LYNN M | Option exercise / conversion (M) | Common Stock, No Par Value | 2,339 | USD 24.05 | USD 56,253 | SEC filing ↗ |
| 2026-05-08 | HOPKINS LYNN M | Tax withholding (F) | Common Stock, No Par Value | 840 | USD 24.05 | USD 20,202 | SEC filing ↗ |
| 2026-05-08 | Fan Gary | Option exercise / conversion (M) | Common Stock, No Par Value | 1,452 | USD 24.05 | USD 34,921 | SEC filing ↗ |
| 2026-05-08 | Fan Gary | Tax withholding (F) | Common Stock, No Par Value | 521 | USD 24.05 | USD 12,530 | SEC filing ↗ |
| 2026-05-08 | Chang Ashley | Option exercise / conversion (M) | Common Stock, No Par Value | 993 | USD 24.05 | USD 23,882 | SEC filing ↗ |
| 2026-05-08 | Chang Ashley | Tax withholding (F) | Common Stock, No Par Value | 409 | USD 24.05 | USD 9,836 | SEC filing ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
Snapshot & identity
| Snapshot date | 2026-10-18 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | RBB |
| CIK | 0001499422 |
| Sector | Financial Services |
| Industry | Banks—Regional Yahoo Finance |
| SEC SIC | 6022 State Commercial Banks |
| Exchange | Nasdaq |
Data coverage
| Local Form 4 history | 492 transaction lines from 2020-01-23 to 2026-08-19 117 P purchase lines · 68 S sale lines · 307 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.