Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

Rhinebeck Bancorp, Inc.

CIK 0001751783RBKB· quarter ending 2026-06-30

Shares outstanding

15,635,966

as of 2026-08-01 · 10-Q cover page, filed 2026-08-13

Held by 13F filers

2,222,541

14.2% of shares outstanding

Holders

+1 vs 2026-03-31 · 7 new, 6 exited

Value

$37.8M

shares -1.2% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-13, as of 2026-08-01)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	RBKB · NASDAQ	15,635,966	2,222,541	14.2%	47	762093102

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

Count	CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
	762093102	COM	47	2,222,541	15,635,966	14.2%	$37.8M	—	NPORT	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings. 1 further CUSIPs map to this company (mostly bonds) but no 13F filer held them this quarter.

Top holders (47 of 47 · 762093102)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	M3F, Inc.	552,076	3.53%	$9.6M	-458,344 (-45.4%)
2	VANGUARD CAPITAL MANAGEMENT LLC	471,868	3.02%	$8.2M	+287,377 (+155.8%)
3	ALLIANCEBERNSTEIN L.P.	372,139	2.38%	$5.7M	-14,469 (-3.7%)
4	BlackRock, Inc.	257,759	1.65%	$4.5M	+88,833 (+52.6%)
5	GEODE CAPITAL MANAGEMENT, LLC	106,617	0.68%	$1.8M	+13,008 (+13.9%)
6	BRIDGEWAY CAPITAL MANAGEMENT, LLC	74,627	0.48%	$1.3M	—
7	Empowered Funds, LLC	59,627	0.38%	$1.0M	—
8	RENAISSANCE TECHNOLOGIES LLC	43,300	0.28%	$750K	+19,000 (+78.2%)
9	VANGUARD FIDUCIARY TRUST CO	37,882	0.24%	$656K	+11,780 (+45.1%)
10	NORTHERN TRUST CORP	36,475	0.23%	$631K	+5,799 (+18.9%)
11	STATE STREET CORP	34,831	0.22%	$603K	+3,800 (+12.2%)
12	DIMENSIONAL FUND ADVISORS LP	32,186	0.21%	$557K	+2,305 (+7.7%)
13	VANGUARD PORTFOLIO MANAGEMENT LLC	31,584	0.20%	$547K	+5,833 (+22.7%)
14	Cerity Partners LLC	20,052	0.13%	$347K	+45 (+0.2%)
15	Bank of New York Mellon Corp	14,214	0.09%	$246K	NEW
16	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	11,327	0.07%	$196K	—
17	Focused Wealth Management, Inc	10,000	0.06%	$173K	—
18	MORGAN STANLEY	6,660	0.04%	$115K	-1,614 (-19.5%)
19	RHUMBLINE ADVISERS	5,514	0.04%	$95K	+493 (+9.8%)
20	NEW YORK STATE COMMON RETIREMENT FUND	5,507	0.04%	$95K	—
21	Arax Advisory Partners	5,043	0.03%	$87K	NEW
22	Russell Investments Group, Ltd.	4,977	0.03%	$86K	+3,522 (+242.1%)
23	DEUTSCHE BANK AG\	4,586	0.03%	$79K	-3,523 (-43.4%)
24	WELLS FARGO & COMPANY/MN	3,942	0.03%	$68K	+2,236 (+131.1%)
25	UBS Group AG	3,784	0.02%	$66K	+93 (+2.5%)
26	Police & Firemen's Retirement System of New Jersey	2,608	0.02%	$45K	NEW
27	Vanguard Global Advisers, LLC	2,219	0.01%	$38K	—
28	CITIGROUP INC	2,178	0.01%	$38K	+1,531 (+236.6%)
29	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	2,167	0.01%	$38K	-28 (-1.3%)
30	JPMORGAN CHASE & CO	2,025	0.01%	$35K	+190 (+10.4%)
31	BNP PARIBAS FINANCIAL MARKETS	1,083	0.01%	$19K	-346 (-24.2%)
32	BARCLAYS PLC	793	0.01%	$14K	-460 (-36.7%)
33	Tower Research Capital LLC (TRC)	672	0.00%	$12K	-522 (-43.7%)
34	FMR LLC	574	0.00%	$10K	+49 (+9.3%)
35	ROYAL BANK OF CANADA	485	0.00%	$9K	+326 (+205.0%)
36	Ameritas Investment Partners, Inc.	461	0.00%	$8K	—
37	Legal & General Group Plc	406	0.00%	$7K	—
38	Sterling Capital Management LLC	84	0.00%	$1K	-65 (-43.6%)
39	GAMMA Investing LLC	68	0.00%	$1K	+43 (+172.0%)
40	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	64	0.00%	$1K	NEW
41	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	45	0.00%	$779	—
42	IFP Advisors, Inc	11	0.00%	$190	NEW
43	Caitong International Asset Management Co., Ltd	9	0.00%	$156	—
44	Farther Finance Advisors, LLC	4	0.00%	$69	+2 (+100.0%)
45	EverSource Wealth Advisors, LLC	4	0.00%	$69	NEW
46	True Wealth Design, LLC	2	0.00%	$35	NEW
47	Essential Partners LLC	2	0.00%	$35	+1 (+100.0%)

Exited since 2026-03-31 (6 filers; largest 6 shown)

AE Wealth Management LLC	−15,188
MassMutual Private Wealth & Trust, FSB	−234
CWM, LLC	−18
MAI Capital Management	−2
Allworth Financial LP	−2
Root Financial Partners, LLC	−2

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
Jason A. Stock	SCHEDULE 13G/A	2026-08-11	2026-07-22	815,333	5.21%
M3F, Inc.	SCHEDULE 13G/A	2026-08-11	2026-07-22	815,333	5.21%
M3 Funds, LLC	SCHEDULE 13G/A	2026-08-11	2026-07-22	815,333	5.21%
M3 Partners, LP	SCHEDULE 13G/A	2026-08-11	2026-07-22	815,333	5.21%
William C. Waller	SCHEDULE 13G/A	2026-08-11	2026-07-22	815,333	5.21%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.