라인벡 뱅코프(Rhinebeck Bancorp, Inc.)
US ˙ NasdaqCM ˙ US7620931029

SecurityRBKB / Rhinebeck Bancorp, Inc.
InstitutionM3F, Inc.
Latest Disclosed Ownership1,010,420 shares
Latest Disclosed Value $ 15,581
M3F, Inc. reports 0.49% decrease in ownership of RBKB / Rhinebeck Bancorp, Inc.

On April 28, 2026 - M3F, Inc. filed a 13F-HR form disclosing ownership of 1,010,420 shares of Rhinebeck Bancorp, Inc. (US:RBKB) valued at $15,580,676 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,015,420 shares of Rhinebeck Bancorp, Inc.. This represents a change in shares of -0.49% during the quarter. The current value of the position is $16,550,680 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)
2026-04-28 2026-03-31 13F RHINEBECK BANCORP COMMON 762093102 1,010,420 -5,000 -0.49 16 25.00 3.8614
2026-02-13 2025-12-31 13F RHINEBECK BANCORP COMMON 762093102 1,015,420 17,620 1.77 12 9.09 3.3522
2025-11-12 2025-09-30 13F RHINEBECK BANCORP COMMON 762093102 997,800 -24,804 -2.43 11 0.00 3.2123
2025-08-13 2025-06-30 13F RHINEBECK BANCORP COMMON 762093102 1,022,604 -7,500 -0.73 12 10.00 3.3840
2025-05-14 2025-03-31 13F RHINEBECK BANCORP COMMON 762093102 1,030,104 -45,594 -4.24 10 0.00 2.7858
2025-02-13 2024-12-31 13F RHINEBECK BANCORP COMMON 762093102 1,075,698 0 0.00 10 11.11 3.0071
2024-11-13 2024-09-30 13F RHINEBECK BANCORP COMMON 762093102 1,075,698 -2,255 -0.21 10 12.50 3.0654
2024-08-13 2024-06-30 13F RHINEBECK BANCORP COMMON 762093102 1,077,953 6,858 0.64 8 -11.11 3.1361
2024-05-14 2024-03-31 13F RHINEBECK BANCORP COMMON 762093102 1,071,095 17,726 1.68 9 12.50 3.2039
2024-02-13 2023-12-31 13F RHINEBECK BANCORP COMMON 762093102 1,053,369 101,822 10.70 8 33.33 2.6925
2023-11-13 2023-09-30 13F RHINEBECK BANCORP COMMON 762093102 951,547 206,345 27.69 6 20.00 2.1535
2023-08-11 2023-06-30 13F RHINEBECK BANCORP COMMON 762093102 745,202 -160,388 -17.71 5 -16.67 1.5763
2023-05-12 2023-03-31 13F RHINEBECK BANCORP COMMON 762093102 905,590 19,173 2.16 7 -25.00 2.2753
2023-02-10 2022-12-31 13F RHINEBECK BANCORP COMMON 762093102 886,417 296,825 50.34 8 -99.86 2.4697
2022-11-14 2022-09-30 13F RHINEBECK BANCORP COMMON 762093102 589,592 39,509 7.18 5,749 12.99 2.0169
2022-08-12 2022-06-30 13F RHINEBECK BANCORP COMMON 762093102 550,083 14,990 2.80 5,088 -6.42 1.6523
2022-05-16 2022-03-31 13F RHINEBECK BANCORP COMMON 762093102 535,093 24,360 4.77 5,437 -0.13 1.8092
2022-02-11 2021-12-31 13F RHINEBECK BANCORP COMMON 762093102 510,733 414 0.08 5,444 -2.12 1.8259
2021-11-12 2021-09-30 13F RHINEBECK BANCORP COMMON 762093102 510,319 7,727 1.54 5,562 1.07 1.8214
2021-08-13 2021-06-30 13F RHINEBECK BANCORP COMMON 762093102 502,592 243,714 94.14 5,503 105.41 1.9515
2021-05-14 2021-03-31 13F RHINEBECK BANCORP COMMON 762093102 258,878 27,485 11.88 2,679 35.44 1.0847
2021-02-12 2020-12-31 13F RHINEBECK BANCORP COMMON 762093102 231,393 52,308 29.21 1,978 74.73 0.9384
2020-11-12 2020-09-30 13F RHINEBECK BANCORP COMMON 762093102 179,085 131,302 274.79 1,132 261.66 0.7174
2020-08-11 2020-06-30 13F RHINEBECK BANCORP COMMON 762093102 47,783 47,783 313 0.2319
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.