SC 13G/A ·Filed Oct 28, 2026
Passive stake amendment
Actionable Insight • Neutral
Monitor for any future conversion to a Schedule 13D, which would signal activist intent. The 3.88% stake is just below the 5% threshold that would require a 13D filing for an active investor.
Latest settled: T+1d ⚠ clustered
RBKB ▲ +0.62% at T+1d
NEUTRAL call +0.62% · α vs SPY +2.40% · entry $12.85 → $12.93
T+1d
+0.62%
call +0.62% · α +2.40%
$12.93
settled 3d ago
T+5d
Pending
in 3d
T+20d
Pending
in 24d
T+60d
Pending
in 3mo
Price Chart
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Executive Summary
M3 Partners LP filed an amended Schedule 13G disclosing a 3.88% passive stake in Rhinebeck Bancorp as of September 30, 2026. The filing is an amendment; no prior stake data is provided in the documents, so the change direction cannot be determined.
Key Financial Metrics
Stake
3.88%
Stake Value
$7.8M
Investor
M3 Partners LP
Investor Type
hedge fund
Key Facts
- M3 Partners LP reported beneficial ownership of 607,402 shares of Rhinebeck Bancorp common stock.
- The stake represents 3.88% of shares outstanding as of September 30, 2026.
- The filing is an amendment to Schedule 13G, filed under Rule 13d-1(c) (passive investor).
- Reporting persons include M3 Funds LLC (general partner), M3F Inc. (investment adviser), Jason A. Stock, and William C. Waller.
Financial Impact
Passive stake of 3.88% valued at approximately $7.8M based on $201M market cap.
Risk Factors
- No prior stake data provided; cannot assess whether the position was increased or decreased.
- Passive 13G filing; no indication of activist intent or planned engagement with management.
Market Snapshot
Exchange
Nasdaq
Sector
Savings Institutions, Not Federally Chartered
Investment Themes
Traditional Finance
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| SC 13G/A Filing (Primary) | 0001398344-26-018993 |
| Document: 0001398344-26-018993-index.html | 0001398344-26-018993 |
| Document: 0001398344-26-018993.txt | 0001398344-26-018993 |
14 reports for RBKB
67% Hit rate @ T+60 Went positive at some point 2 of 3 best @ T+60▲ +5.64%
Filters
Rows
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 29, 2026 3d ago | 8-K | $12.85 | awaiting T+60 | awaiting T+60 | $12.93 (+0.62%) |
Oct 28, 2026 4d ago | SC 13G/A | $12.85 | awaiting T+60 | awaiting T+60 | $12.93 (+0.62%) |
Oct 6, 2026 26d ago | 8-K | $12.97 | awaiting T+60 | awaiting T+60 | $12.93 (−0.31%) |
Aug 6, 2026 12w ago | Insider Buy | $12.52 $12.85 | ▲ +2.64% | ▲ +4.06% | $12.93 (+3.27%) |
Jul 23, 2026 14w ago | Insider Cluster | $12.43 $12.69 | ▲ +2.09% | ▼ −1.64% | $12.93 (+4.02%) |
Jul 17, 2026 15w ago | 8-K | $17.02 $17.98 | ▲ +5.64% | ▲ +0.95% | $12.93 (−24.03%) |
Jun 29, 2026 17w ago | 8-K | $17.31 $17.95 | ▲ +3.71% | ▲ +0.97% | $12.93 (−25.30%) |
May 26, 2026 22w ago | 8-K | $11.02 $12.65 | ▼ −14.75% | ▼ −12.03% | $12.93 (−17.29%) |
May 15, 2026 24w ago | EFFECT | $11.47 $12.48 | ▲ +8.76% | ▲ +4.25% | $12.93 (+12.68%) |
May 14, 2026 24w ago | 8-K | $11.47 $12.48 | ▲ +8.76% | ▲ +4.25% | $12.93 (+12.68%) |
Showing 10 of 14
US Market Status
Market Closed · Opens Mon (17h 19m)
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