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RBB Bancorp
RBB

120 hedge funds and large institutions have $201M invested in RBB Bancorp in 2026 Q1 according to their latest regulatory filings, with 16 funds opening new positions, 50 increasing their positions, 34 reducing their positions, and 7 closing their positions.

New
Increased
Maintained
Reduced
Closed

129% more first-time investments, than exits

New positions opened: 16 | Existing positions closed: 7

47% more repeat investments, than reductions

Existing positions increased: 50 | Existing positions reduced: 34

9% more capital invested

Capital invested by funds: $184M → $201M (+$17.4M)

7% more funds holding

Funds holding: 112 → 120 (+8)

3.06% more ownership

Funds ownership: 52.24% → 55.3% (+3.1%)

0% more funds holding in top 10

Funds holding in top 10: 1 → 1 (0)

50% less call options, than puts

Call options by funds: $2K | Put options by funds: $4K

Holders
120
Holders Change
+8
Holders Change %
+7.14%
% of All Funds
1.48%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
16
Increased
50
Reduced
34
Closed
7
Calls
$2K
Puts
$4K
Net Calls
-$2K
Net Calls Change
+$2K

Top Buyers

1
EC
EJF Capital
Virginia
+$2.33M
2
OSAM
O'Shaughnessy Asset Management
Connecticut
+$2.03M
3
AllianceBernstein
AllianceBernstein
Tennessee
+$1.89M
4
HIM
Hillsdale Investment Management
Ontario, Canada
+$1.54M
5
NRCM
North Reef Capital Management
California
+$1.37M

Top Sellers

1
Millennium Management
Millennium Management
New York
-$908K
2
BlackRock
BlackRock
New York
-$679K
3
ACL
Azora Capital LP
Florida
-$638K
4
Marshall Wace
Marshall Wace
United Kingdom
-$635K
5
Barclays
Barclays
United Kingdom
-$471K
Name Holding Trade Value Shares
Change 		Change in
Stake
FCM
1
FJ Capital Management
Virginia
$32.3M – – –
BlackRock
2
BlackRock
New York
$24.4M -$679K -31,684 -3%
Dimensional Fund Advisors
3
Dimensional Fund Advisors
Texas
$17.7M +$358K +16,695 +2%
VCM
4
Vanguard Capital Management
Pennsylvania
$14.1M +$14.1M +660,025 New
American Century Companies
5
American Century Companies
Missouri
$9.99M +$714K +33,330 +8%
AllianceBernstein
6
AllianceBernstein
Tennessee
$7.89M +$1.89M +88,285 +30%
Geode Capital Management
7
Geode Capital Management
Massachusetts
$7.42M +$115K +5,350 +2%
RIP
8
Rhino Investment Partners
Pennsylvania
$7.24M +$623K +29,070 +9%
State Street
9
State Street
Massachusetts
$6.94M +$88.2K +4,116 +1%
HIM
10
Hillsdale Investment Management
Ontario, Canada
$4.73M +$1.54M +72,000 +48%
Arrowstreet Capital
11
Arrowstreet Capital
Massachusetts
$4.27M -$9.75K -455 -0.2%
LSV Asset Management
12
LSV Asset Management
Illinois
$4.03M -$223K -10,400 -5%
Hotchkis & Wiley Capital Management
13
Hotchkis & Wiley Capital Management
California
$3.93M -$47.5K -2,215 -1%
BCM
14
Bridgeway Capital Management
Texas
$3.55M +$168K +7,856 +5%
Morgan Stanley
15
Morgan Stanley
New York
$2.83M -$444K -20,729 -14%
VPM
16
Vanguard Portfolio Management
Pennsylvania
$2.58M +$2.59M +120,946 New
Northern Trust
17
Northern Trust
Illinois
$2.48M +$190K +8,843 +8%
EC
18
EJF Capital
Virginia
$2.33M +$2.33M +108,857 New
EF
19
Empowered Funds
Pennsylvania
$2.17M +$413K +19,279 +23%
Acadian Asset Management
20
Acadian Asset Management
Massachusetts
$2.08M +$1.09M +50,662 +108%
OSAM
21
O'Shaughnessy Asset Management
Connecticut
$2.02M +$2.03M +94,684 New
Bank of New York Mellon
22
Bank of New York Mellon
New York
$1.9M -$27.8K -1,297 -1%
VFT
23
Vanguard Fiduciary Trust
Pennsylvania
$1.77M +$1.77M +82,767 New
AQR Capital Management
24
AQR Capital Management
Connecticut
$1.65M +$112K +5,242 +7%
TI
25
Trexquant Investment
Connecticut
$1.51M +$389K +18,175 +34%
1
2 3 4 5

RBB Hedge Fund Activity: Q1 2026 in Review

120 of the 8,125 institutional investors tracked by Wall St. Rank reported a position in RBB Bancorp (RBB) for Q1 2026, worth a combined $201M — up 9.4% from $184M a quarter earlier.

Buyers outnumbered sellers: 16 funds opened new RBB positions and 7 closed out — a net gain of 9 holders — while 50 added to existing stakes and 34 trimmed.

The largest buyer was EJF Capital, opening a new position worth an estimated $2.33M. The largest seller was Millennium Management, cutting an estimated $908K.

  • 120 institutional investors held RBB Bancorp (RBB) as of Q1 2026, up from 112 in Q4 2025.
  • Funds reported $201M of RBB Bancorp stock for Q1 2026, up 9.4% quarter-over-quarter.
  • 16 funds opened new RBB Bancorp positions in Q1 2026 and 7 closed out, a net change of +9 holders.
  • The largest RBB Bancorp buyer in Q1 2026 was EJF Capital, an estimated $2.33M added.
  • The largest RBB Bancorp seller in Q1 2026 was Millennium Management, an estimated $908K sold.

Based on aggregated 13F filings for Q1 2026.