RBB Bancorp
DE ˙ DB ˙ US74930B1052
19,80 € ↓ -0,40 (-1,98%)
2026-06-04
DEL PRIS
SecurityDE:5SZ / RBB Bancorp
InstitutionMorgan Stanley
Latest Disclosed Ownership132,582 shares
Latest Disclosed Value $ 2,833,290
Morgan Stanley reports 13.52% decrease in ownership of 5SZ / RBB Bancorp

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 132,582 shares of RBB Bancorp (DE:5SZ) valued at $2,386,476 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 153,311 shares of RBB Bancorp. This represents a change in shares of -13.52% during the quarter. The current value of the position is $2,625,124 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F RBB BANCORP COM 74930B105 132,582 -20,729 -13.52 2,833 -10.46 0.0002
2026-05-27 2025-12-31 13F/A-1 RBB BANCORP COM 74930B105 153,311 18,148 13.43 3,164 24.81 0.0002
2026-02-13 2025-12-31 13F RBB BANCORP COM 74930B105 153,311 18,148 3,164 0.0002
2026-05-27 2025-09-30 13F/A-1 RBB BANCORP COM 74930B105 135,163 -15,225 -10.12 2,536 -2.05 0.0002
2025-11-14 2025-09-30 13F RBB BANCORP COM 74930B105 135,163 -15,225 2,536 0.0002
2025-08-15 2025-06-30 13F RBB BANCORP COM 74930B105 150,388 -15,813 -9.51 2,588 -5.62 0.0002
2025-05-15 2025-03-31 13F RBB BANCORP COM 74930B105 166,201 -17,368 -9.46 2,742 -27.09 0.0002
2025-05-15 2024-12-31 13F/A-1 RBB BANCORP COM 74930B105 183,569 1,283 0.70 3,761 -10.37 0.0003
2025-02-14 2024-12-31 13F RBB BANCORP COM 74930B105 183,569 1,283 3,761 0.0003
2025-05-14 2024-09-30 13F/A-2 RBB BANCORP COM 74930B105 182,286 37,944 26.29 4,196 54.55 0.0003
2025-02-14 2024-09-30 13F/A-1 RBB BANCORP COM 74930B105 182,286 37,944 4,196 0.0003
2024-11-14 2024-09-30 13F RBB BANCORP COM 74930B105 182,286 37,944 4,196 0.0003
2025-05-14 2024-06-30 13F/A-2 RBB BANCORP COM 74930B105 144,342 -6,226 -4.14 2,715 0.15 0.0002
2024-10-17 2024-06-30 13F/A-1 RBB BANCORP COM 74930B105 144,342 -6,226 2,715 0.0002
2024-08-14 2024-06-30 13F RBB BANCORP COM 74930B105 144,342 -6,226 2,715 0.0002
2024-10-17 2024-03-31 13F/A-2 RBB BANCORP COM 74930B105 150,568 -17,629 -10.48 2,712 -15.33 0.0002
2024-08-16 2024-03-31 13F/A-1 RBB BANCORP COM 74930B105 150,568 -17,629 2,712 0.0000
2024-05-15 2024-03-31 13F RBB BANCORP COM 74930B105 150,568 -17,629 2,712 0.0002
2024-08-16 2023-12-31 13F/A-1 RBB BANCORP COM 74930B105 168,197 28,017 19.99 3,202 78.78 0.0003
2024-02-13 2023-12-31 13F RBB BANCORP COM 74930B105 168,197 28,017 3,202 0.0003
2023-11-15 2023-09-30 13F RBB BANCORP COM 74930B105 140,180 -622 -0.44 1,792 6.54 0.0002
2023-08-14 2023-06-30 13F RBB BANCORP COM 74930B105 140,802 67,972 93.33 1,681 49.02 0.0002
2023-05-15 2023-03-31 13F RBB BANCORP COM 74930B105 72,830 36,530 100.63 1,129 49.21 0.0001
2023-02-14 2022-12-31 13F RBB BANCORP COM 74930B105 36,300 9,916 37.58 757 37.96 0.0001
2022-11-14 2022-09-30 13F RBB BANCORP COM 74930B105 26,384 -24,846 -48.50 548 -48.30 0.0001
2022-10-27 2022-06-30 13F/A-1 RBB BANCORP COM 74930B105 51,230 24,241 89.82 1,060 67.19 0.0001
2022-08-15 2022-06-30 13F RBB BANCORP COM 74930B105 51,230 24,241 1,060 0.0000
2022-10-27 2022-03-31 13F/A-1 RBB BANCORP COM 74930B105 26,989 8,384 45.06 634 30.18 0.0001
2022-05-13 2022-03-31 13F RBB BANCORP COM 74930B105 26,989 8,384 634 0.0001
2022-02-14 2021-12-31 13F RBB BANCORP COM 74930B105 18,605 1,015 5.77 487 9.93 0.0001
2021-11-15 2021-09-30 13F RBB BANCORP COM 74930B105 17,590 -24,531 -58.24 443 -56.61 0.0001
2021-08-23 2021-06-30 13F/A-1 RBB BANCORP COM 74930B105 42,121 -3,156 -6.97 1,021 11.22 0.0001
2021-08-16 2021-06-30 13F RBB BANCORP COM 74930B105 42,121 -3,156 1,021 0.0000
2021-05-17 2021-03-31 13F RBB BANCORP COM 74930B105 45,277 -11,468 -20.21 918 5.15 0.0001
2021-02-16 2020-12-31 13F RBB BANCORP COM 74930B105 56,745 13,567 31.42 873 78.16 0.0001
2020-11-13 2020-09-30 13F RBB BANCORP COM 74930B105 43,178 16,912 64.39 490 36.87 0.0001
2020-08-14 2020-06-30 13F RBB BANCORP COM 74930B105 26,266 -151 -0.57 358 -1.10 0.0001
2020-05-26 2020-03-31 13F/A-1 RBB BANCORP COM 74930B105 26,417 -20,081 -43.19 362 -63.21 0.0001
2020-05-15 2020-03-31 13F RBB BANCORP COM 74930B105 26,417 -20,081 362 27.8091
2020-02-14 2019-12-31 13F RBB BANCORP COM 74930B105 46,498 20,349 77.82 984 91.07 0.0002
2019-11-14 2019-09-30 13F RBB BANCORP COM 74930B105 26,149 19,244 278.70 515 287.22 0.0001
2019-08-14 2019-06-30 13F RBB BANCORP COM 74930B105 6,905 -3,692 -34.84 133 -33.50 0.0000
2019-05-15 2019-03-31 13F RBB BANCORP COM 74930B105 10,597 -22,627 -68.10 200 -65.75 0.0001
2019-02-14 2018-12-31 13F RBB BANCORP COM 74930B105 33,224 -7,015 -17.43 584 -40.77 0.0002
2019-04-23 2018-09-30 13F/A-2 RBB BANCORP COM 74930B105 40,239 11,136 38.26 986 5.45 0.0002
2018-11-20 2018-09-30 13F/A-1 RBB BANCORP COM 74930B105 40,239 0 986 0.0002
2018-11-14 2018-09-30 13F RBB BANCORP COM 74930B105 40,239 11,136 986
2019-04-23 2018-06-30 13F/A-1 RBB BANCORP COM 74930B105 29,103 11,607 66.34 935 102.82 0.0003
2018-08-14 2018-06-30 13F RBB BANCORP COM 74930B105 29,103 11,607 935
2019-04-23 2018-03-31 13F/A-1 RBB BANCORP COM 74930B105 17,496 8,453 93.48 461 85.89 0.0001
2018-05-14 2018-03-31 13F RBB BANCORP COM 74930B105 17,496 8,453 461
2019-04-23 2017-12-31 13F/A-1 RBB BANCORP COM 74930B105 9,043 -2,154 -19.24 248 -3.12 0.0001
2018-02-14 2017-12-31 13F RBB BANCORP COM 74930B105 9,043 -2,154 248
2017-11-14 2017-09-30 13F RBB BANCORP COM 74930B105 11,197 11,197 256 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.