萊茵貝克銀行公司
US ˙ NasdaqCM ˙ US7620931029

SecurityRBKB / Rhinebeck Bancorp, Inc.
InstitutionAlliancebernstein L.p.
Latest Disclosed Ownership386,608 shares
Latest Disclosed Value $ 4,647,028
Alliancebernstein L.p. reports 2.99% increase in ownership of RBKB / Rhinebeck Bancorp, Inc.

On May 15, 2026 - Alliancebernstein L.p. filed a 13F-HR form disclosing ownership of 386,608 shares of Rhinebeck Bancorp, Inc. (US:RBKB) valued at $5,961,495 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 375,372 shares of Rhinebeck Bancorp, Inc.. This represents a change in shares of 2.99% during the quarter. The current value of the position is $6,332,639 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 RHINEBECK BANCORP COM 762093102 386,608 11,236 2.99 4,647 3.01 0.0015
2026-02-17 2025-12-31 13F RHINEBECK BANCORP COM 762093102 375,372 -15,587 -3.99 4,512 1.58 0.0014
2025-11-14 2025-09-30 13F RHINEBECK BANCORP COM 762093102 390,959 4,718 1.22 4,441 -1.96 0.0014
2025-08-14 2025-06-30 13F RHINEBECK BANCORP COM 762093102 386,241 3,749 0.98 4,531 20.38 0.0015
2025-05-15 2025-03-31 13F RHINEBECK BANCORP COM 762093102 382,492 186,238 94.90 3,764 98.37 0.0014
2025-02-12 2024-12-31 13F RHINEBECK BANCORP COM 762093102 196,254 81,345 70.79 1,898 78.63 0.0006
2024-11-14 2024-09-30 13F RHINEBECK BANCORP COM 762093102 114,909 12,683 12.41 1,063 32.25 0.0004
2024-08-14 2024-06-30 13F RHINEBECK BANCORP COM 762093102 102,226 -13,695 -11.81 803 -17.98 0.0003
2024-05-14 2024-03-31 13F RHINEBECK BANCORP COM 762093102 115,921 -61,818 -34.78 980 -31.54 0.0003
2024-02-14 2023-12-31 13F RHINEBECK BANCORP COM 762093102 177,739 0 0.00 1,431 18.87 0.0006
2023-11-14 2023-09-30 13F RHINEBECK BANCORP COM 762093102 177,739 0 0.00 1,204 0.59 0.0005
2023-08-15 2023-06-30 13F RHINEBECK BANCORP COM 762093102 177,739 0 0.00 1,196 -11.99 0.0005
2023-05-15 2023-03-31 13F RHINEBECK BANCORP COM 762093102 177,739 0 0.00 1,360 -16.06 0.0006
2023-02-15 2022-12-31 13F RHINEBECK BANCORP COM 762093102 177,739 5,000 2.89 1,619 -3.86 0.0007
2022-11-15 2022-09-30 13F RHINEBECK BANCORP COM 762093102 172,739 0 0.00 1,684 5.38 0.0008
2022-08-15 2022-06-30 13F RHINEBECK BANCORP COM 762093102 172,739 0 0.00 1,598 -8.95 0.0007
2022-05-13 2022-03-31 13F RHINEBECK BANCORP COM 762093102 172,739 3,013 1.78 1,755 -2.99 0.0007
2022-02-14 2021-12-31 13F RHINEBECK BANCORP COM 762093102 169,726 0 0.00 1,809 -2.22 0.0006
2021-11-10 2021-09-30 13F RHINEBECK BANCORP COM 762093102 169,726 0 0.00 1,850 -0.43 0.0007
2021-07-30 2021-06-30 13F RHINEBECK BANCORP COM 762093102 169,726 904 0.54 1,858 6.35 0.0007
2021-05-06 2021-03-31 13F RHINEBECK BANCORP COM 762093102 168,822 30 0.02 1,747 21.07 0.0008
2021-02-08 2020-12-31 13F RHINEBECK BANCORP COM 762093102 168,792 350 0.21 1,443 35.49 0.0007
2020-11-12 2020-09-30 13F RHINEBECK BANCORP COM 762093102 168,442 14,577 9.47 1,065 5.55 0.0006
2020-08-13 2020-06-30 13F RHINEBECK BANCORP COM 762093102 153,865 37,103 31.78 1,009 35.07 0.0006
2020-05-14 2020-03-31 13F RHINEBECK BANCORP COM 762093102 116,762 40,379 52.86 747 -13.54 0.0005
2020-02-18 2019-12-31 13F RHINEBECK BANCORP COM 762093102 76,383 31,983 72.03 864 81.89 0.0005
2019-11-14 2019-09-30 13F RHINEBECK BANCORP COM 762093102 44,400 0 0.00 475 -2.86 0.0003
2019-08-14 2019-06-30 13F RHINEBECK BANCORP COM 762093102 44,400 0 0.00 489 -8.26 0.0003
2019-05-14 2019-03-31 13F RHINEBECK BANCORP COM 762093102 44,400 44,400 533 0.0003
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.