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Research terminalQ2 2026 · 4,313 institutions · refreshed 8/27/2026 · catalog mismatch
Q2 2026 · 4,313 institutions · refreshed 8/27/2026
Regulatory profile
FDIC certificate #90253 · RSSD 97804
Recent activity
Deterministic, evidence-linked observations only — not a prediction, rating or recommendation. What counts as Notable.
MountainOne Bank changed deposits by 15014 USD thousands and market share by -0.00664 points in MA
Source ↗MountainOne Bank changed deposits by 4597 USD thousands and market share by -0.037708 points in Norfolk County, MA
Source ↗MountainOne Bank changed deposits by -3981 USD thousands and market share by -0.301186 points in Berkshire County, MA
Source ↗MountainOne Bank changed deposits by 14398 USD thousands and market share by 0.047644 points in Plymouth County, MA
Source ↗NIC transformation 1
Ten-year database
Branch and geographic intelligence
FDIC branch-location snapshot dated 2026-08-22
| Market | State | Locations | Main offices | Earliest establishment |
|---|---|---|---|---|
| North Adams | MA | 1 | 1 | Unavailable |
| Pittsfield | MA | 1 | 0 | Unavailable |
| Quincy | MA | 1 | 0 | Unavailable |
| Rockland | MA | 1 | 0 | Unavailable |
| Scituate | MA | 1 | 0 | Unavailable |
| Williamstown | MA | 1 | 0 | Unavailable |
Reviewed NIC structure change on 2013-07-20: RSSD 551904 → 97804 (1). The location count above reflects the current combined network and is not itself a measure of organic branch growth. 4 structure changes are on record for this entity; see History & events for the full list.
Branch locations reflect the latest registered FDIC location release, not real-time openings. Opening/closing attribution to organic growth vs. merger activity remains unavailable beyond the reviewed structure changes noted above. Annual deposit market share by state is available separately, below.
Annual FDIC Summary of Deposits, by state, as of the 2025 snapshot effective 2025-06-30. Deposits and share are as of that retained annual snapshot, not a quarterly balance — do not compare directly to Call Report deposit figures reported elsewhere on this profile.
| State | Deposits | Market share | Rank | Year over year |
|---|
Ownership, transformations and revisions
NIC relationships are time-bounded. Reviewed filing revisions remain distinct from mergers.
Unresolved entityRSSD 3100152 · 2002-05-01 to current
Unresolved entityRSSD 2634212 · 1998-03-16 to 2002-04-30
Unresolved entityRSSD 5727647 · 2021-11-23 to current
Unresolved entityRSSD 4497578 · 2013-07-20 to current
Unresolved entityRSSD 3124831 · 2012-06-23 to 2012-06-23
Unresolved entityRSSD 2842259 · 2011-01-11 to 2016-12-31
Unresolved entityRSSD 2842419 · 2007-06-30 to current
Unresolved entityRSSD 2702205 · 2007-06-30 to current
2013-07-20RSSD 551904 → 97804 · code 1
2012-06-23RSSD 774105 → 97804 · code 1
2011-01-11RSSD 2842240 → 97804 · code 1
1965-01-15RSSD 95707 → 97804 · code 1
No reviewed revisions published.
Latest registered batch · retrieved Aug 27, 2026, 10:51 AM UTC · SHA-256 56519b9e6ae2ada5757ec111f52c6451d5e31d6d47a52fdcf0bf38acf129fcaa · source ↗
| Quarter | Assets | Deposits | Net loans | ROA | ROE | NIM |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1.1B | $0.8B | $0.8B | 1.22% | 7.73% | 3.81% |
| 2026-03-31 | $1.1B | $0.8B | $0.8B | 1.08% | 6.86% | 3.83% |
| 2025-12-31 | $1.1B | $0.8B | $0.8B | 1.17% | 7.51% | 3.74% |
| 2025-09-30 | $1.0B | $0.8B | $0.8B | 1.14% | 7.36% | 3.69% |
| 2025-06-30 | $1.0B | $0.8B | $0.8B | 1.09% | 7.05% | 3.62% |
| 2024-03-31 | $1.0B | $0.8B | $0.8B | 0.82% | 5.70% | 3.39% |
| MA | $776.6M | 0.13% | 62 | Continuing · -0.01 pp |
|---|
Source: FDIC Summary of Deposits, annual release. Market share divides this institution's reported branch deposits by all retained deposits in the same state for the same year — not a quarterly balance, current rate, or organic-growth attribution. Inspect year-over-year market change →
Workforce history unavailable: no compatible reported FTE or office observation. Missing values are not zero.