Rhinebeck Bancorp, Inc. (RBKB) Ownership
RBKB ownership summary
as of October 18, 2026- Institutions
- 16.3% of shares outstanding
- Insiders
- 42.99% of shares outstanding
- Shares outstanding
- 15.6M
- Float
- 13.7M shares available to trade
- Short interest
- 4.00% 363K shares short
- Days to cover
- 2.31 short interest up 30.1% vs prior month
- Institutions 16.31%
- Insiders 42.99%
- Other investors 40.70%
RBKB top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | M3F, Inc. | 3.53% | 552K | $7.1M | −458,344 (−45.4%) | June 30, 2026 |
| 2 | Vanguard Capital Management, LLC | 3.02% | 472K | $6.1M | +287,377 (+155.8%) | June 30, 2026 |
| 3 | AllianceBernstein L.P. | 2.38% | 372K | $4.8M | −14,469 (−3.7%) | June 30, 2026 |
| 4 | BlackRock Inc | 1.65% | 258K | $3.3M | +88,833 (+52.6%) | June 30, 2026 |
| 5 | Geode Capital Management, LLC | 0.68% | 107K | $1.4M | +13,008 (+13.9%) | June 30, 2026 |
| 6 | Bridgeway Capital Management, LLC | 0.48% | 75K | $958,957 | — | June 30, 2026 |
| 7 | Empowered Funds, LLC | 0.38% | 60K | $766,207 | — | June 30, 2026 |
| 8 | Renaissance Technologies Corp | 0.28% | 43K | $556,405 | +19,000 (+78.2%) | June 30, 2026 |
| 9 | Vanguard Fiduciary Trust Co | 0.24% | 38K | $486,784 | +11,780 (+45.1%) | June 30, 2026 |
| 10 | Northern Trust Corp | 0.23% | 36K | $468,704 | +5,799 (+18.9%) | June 30, 2026 |
| 11 | State Street Corp | 0.22% | 35K | $447,578 | +3,800 (+12.2%) | June 30, 2026 |
| 12 | EQUITABLE TRUST CO | 0.21% | 33K | $417,843 | +32,517 (0.0%) | September 30, 2026 |
| 13 | Dimensional Fund Advisors, Inc. | 0.21% | 32K | $413,590 | +2,305 (+7.7%) | June 30, 2026 |
| 14 | Vanguard Portfolio Management, LLC | 0.20% | 32K | $405,854 | +5,833 (+22.7%) | June 30, 2026 |
| 15 | HPM Partners LLC | 0.13% | 20K | $257,668 | +45 (+0.2%) | June 30, 2026 |
| 16 | Bank of New York Mellon Corp | 0.09% | 14K | $182,650 | +14,214 (0.0%) | June 30, 2026 |
| 17 | Charles Schwab Investment Management Inc | 0.07% | 11K | $145,552 | — | June 30, 2026 |
| 18 | Focused Wealth Strategies, INC. | 0.06% | 10K | $128,500 | — | June 30, 2026 |
| 19 | Morgan Stanley - Brokerage Accounts | 0.04% | 6,660 | $85,581 | −1,614 (−19.5%) | June 30, 2026 |
| 20 | Rhumbline Advisers | 0.04% | 5,514 | $70,855 | +493 (+9.8%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 13 holders added 485K shares and 3 cut 474K.
RBKB top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 3.70% | 579K | $7.4M | — | August 31, 2026 |
| 2 | iShares Russell 2000 ETF | 1.34% | 209K | $2.7M | −2,432 (−1.1%) | September 30, 2026 |
| 3 | EA Bridgeway Omni Small-Cap Value ETF | 0.59% | 92K | $1.2M | — | September 30, 2026 |
| 4 | iShares Russell 2000 Value ETF | 0.53% | 83K | $1.1M | +126 (+0.2%) | September 30, 2026 |
| 5 | Fidelity Small Cap Index | 0.44% | 68K | $879,441 | +20,292 (+42.1%) | July 31, 2026 |
| 6 | Vanguard Russell 2000 ETF | 0.34% | 53K | $684,160 | +15,471 (+41.0%) | September 30, 2026 |
| 7 | iShares Micro-Cap ETF | 0.18% | 29K | $371,519 | −199 (−0.7%) | September 30, 2026 |
| 8 | Fidelity Extended Market Index | 0.18% | 27K | $353,311 | −148 (−0.5%) | August 31, 2026 |
| 9 | Schwab Small Cap Index | 0.10% | 16K | $203,441 | — | August 31, 2026 |
| 10 | Bridgeway Omni Small-Cap Value N | 0.10% | 15K | $192,750 | — | June 30, 2026 |
| 11 | Russell Inv US Small Cap Equity Y | 0.09% | 14K | $173,938 | — | August 31, 2026 |
| 12 | iShares Russell 2000 Small-Cap Idx Instl | 0.07% | 11K | $140,515 | — | August 31, 2026 |
| 13 | Nuveen Small Cap Blend Idx R6 | 0.07% | 11K | $136,750 | — | August 31, 2026 |
| 14 | DFA US Core Equity 2 I | 0.07% | 10K | $134,180 | — | August 31, 2026 |
| 15 | Fidelity Series Total Market Index | 0.06% | 9,133 | $117,359 | — | August 31, 2026 |
| 16 | EQ/2000 Managed Volatility IB | 0.06% | 8,967 | $115,226 | — | August 31, 2026 |
| 17 | Fidelity Small Cap Value Index | 0.06% | 8,720 | $112,052 | +2,481 (+39.8%) | July 31, 2026 |
| 18 | Vanguard Russell 2000 Value ETF | 0.05% | 8,516 | $109,431 | +2,170 (+34.2%) | September 30, 2026 |
| 19 | Fidelity Total Market Index | 0.05% | 8,475 | $108,904 | +1,115 (+15.1%) | August 31, 2026 |
| 20 | Xtrackers Russell 2000 ETF 1C | 0.05% | 7,771 | $99,857 | +1,738 (+28.8%) | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
RBKB insider transactions
latest 1| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2025-11-06 | Kevin M Nihill | Buy | $9.67 | 1,000 | $9,670 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
RBKB shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns RBKB
Institutional investors own 16.3% of Rhinebeck Bancorp's shares and insiders 42.99%. The largest holder is M3F, Inc. with 3.53% of the shares (552K), as of June 30, 2026. Among the top 20 institutions, 13 added shares and 3 reduced their stake in the latest filings. Short interest is 4.00% of the float, or 2.31 days of average trading volume. The share count rose 163.3% since 2017.
Related: RBKB key metrics. See the RBKB stock overview for the latest quote and news.
RBKB ownership FAQ
Who owns the most Rhinebeck Bancorp stock?
The largest shareholders of Rhinebeck Bancorp are M3F, Inc. (3.53%), Vanguard Capital Management, LLC (3.02%), AllianceBernstein L.P. (2.38%), BlackRock Inc (1.65%), Geode Capital Management, LLC (0.68%).
What percentage of Rhinebeck Bancorp is owned by institutions?
Institutions hold 16.3% of Rhinebeck Bancorp's shares outstanding; insiders hold 42.99%.
Which funds own Rhinebeck Bancorp?
The largest fund holders of Rhinebeck Bancorp are Vanguard MStar Total Stk Mkt Idx Invest (3.70%), iShares Russell 2000 ETF (1.34%), EA Bridgeway Omni Small-Cap Value ETF (0.59%), iShares Russell 2000 Value ETF (0.53%), Fidelity Small Cap Index (0.44%).
What is Rhinebeck Bancorp's short interest?
363K shares of Rhinebeck Bancorp were sold short, 4.00% of the float; at the average daily volume it would take 2.31 days to cover.
Are insiders buying or selling Rhinebeck Bancorp?
Of the latest 1 reported insider transactions in Rhinebeck Bancorp (since November 6, 2025), 1 were purchases and 0 were sales.
How many shares of Rhinebeck Bancorp are outstanding?
Rhinebeck Bancorp has 15.6M shares outstanding, of which 13.7M are in the public float.