undamentalytics Newsletter

RBB Bancorp insider trading

Every open-market purchase and sale by RBB Bancorp's officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

No insider has bought shares on the open market in five years.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
RBB Bancorp insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following RBB Bancorp’s insiders pay?

From February 16, 2018 to June 8, 2026, 22 insiders reported 49 open-market purchases and 49 sales not made under a pre-set plan in RBB Bancorp. Twelve months after each purchase was reported, the shares were +4.4% against the S&P 500 on average (median +8.1%), over 49 purchases with a full year of prices; 55% beat the index. After sales, the shares moved −28.5% against the index over 12 months (a negative figure means selling was the right call). Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on November 6, 2018 into $13,509 by November 2, 2026, +3.9% a year. It held shares 85% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $30,309 (+14.9% a year), and held throughout $30,993 (+15.3%).

$0$10.0k$20.0k$30.0k 201820192020202120222023202420252026 $31.0k$30.3k$13.5k
Copying RBB Bancorp's insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by RBB Bancorp's insiders from November 6, 2018, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 85% of the time.
RBB Bancorp: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Kao James Director 30 +1.1% (30) 47% 0 — March 3, 2025
Liu Vincent EVP 1 +23.3% (1) 100% 11 −28.5% (11) August 16, 2022
Thian Yee Phong Former President/CEO 4 +10.4% (4) 75% 6 −51.0% (6) June 17, 2022
Pang Simon EVP 1 +23.3% (1) 100% 7 −27.6% (7) August 16, 2022
Morris David Richard CEO 0 — — 5 −11.9% (3) June 8, 2026
Fan Gary EVP/Chief Operations Officer 0 — — 4 +3.1% (2) May 27, 2026
Koo Chie-Min Christopher Director 0 — — 4 −13.1% (4) August 10, 2020
Huang Tsu Te EVP 1 +25.1% (1) 100% 2 −39.0% (2) March 10, 2020
Lin Chuang I Director 1 +8.1% (1) 100% 2 +21.6% (1) May 8, 2026
Chang Peter M Director 2 −12.9% (2) 50% 0 — March 10, 2020
Lin Ko-Yen Director 0 — — 2 −10.3% (2) February 19, 2021
Lin Paul Director 0 — — 2 −50.5% (2) May 16, 2022
Mach Wilson EVP 2 −16.1% (2) 0% 0 — February 5, 2019
Song Tammy Former EVP 0 — — 2 −50.5% (2) May 16, 2022
Yu Raymond H Director 2 +2.7% (2) 50% 0 — March 13, 2020
Bennett Bill Director 0 — — 1 — April 24, 2026
Chen Wendell Director 1 +23.3% (1) 100% 0 — March 9, 2020
Lau Alfonso Director 1 +48.4% (1) 100% 0 — May 15, 2020
Lin Feng Director 0 — — 1 −50.5% (1) May 16, 2022
Polakoff Scott Director 1 +46.4% (1) 100% 0 — November 7, 2023
Thian Fui Ming Director 1 +6.3% (1) 100% 0 — March 3, 2021
Wong Lee Joyce Director 1 −8.8% (1) 0% 0 — December 15, 2023

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded RBB Bancorp

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of RBB Bancorp in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After the 3 buying crowds with six months of prices, it averaged −17.2% against the index. After 3 selling crowds, −6.5%. One company's history is too short to judge by; the test across every company is the better guide.

MonthCrowd3 months on, vs S&P 5006 months12 months
May 29, 20264 selling+8.6%not yetnot yet
November 30, 20232 buying+0.6%+3.9%+27.4%
May 31, 20226 selling+7.4%+7.8%−52.8%
September 30, 20213 selling−7.4%−11.8%−0.2%
March 31, 20209 buying−20.2%−46.1%−5.0%
December 31, 20182 buying−6.3%−9.4%−8.2%
March 29, 20183 selling+20.2%−15.4%−36.6%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Total returns from the month end; past patterns are not a forecast.

← Back to RBB Bancorp · Funds · Politicians