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RBB · RBB Bancorp

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$26.59 +0.19 (+0.72%) At close · Aug 20
Market Cap
$445.90M
Shares
16.92M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 142
Total Value: $267,387,856
Total Shares: 9,753,364

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 142 13F filers · Δ vs Mar 31, 2026
Top Holder
13.2%
Sep 2023 → Jun 2026 · range 13.2% – 23.3%
−2.8 pts
Top 5
38.7%
Sep 2023 → Jun 2026 · range 38.7% – 63.4%
−10.2 pts
Top 10
53.7%
Sep 2023 → Jun 2026 · range 53.7% – 81.3%
−12.3 pts
HHI
447
Sep 2023 → Jun 2026 · range 447 – 1,097
Broadly held−202

Quarterly Activity

vs Mar 31, 2026
New
33
Increased
66
Decreased
21
Sold Out
11
Unchanged
22
Holder count: +22
Institutional value: +32.7%
Shares held: +3.5%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 142
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1499422 CUSIP 74930B105 13F (30d) 133 filings 133 filers Visit website