Regulatory profile
Marlborough, MA · FDIC certificate #90235 · RSSD 818401
MAIN STREET BANK is an FDIC-insured institution based in Marlborough, MA (FDIC certificate #90235). In its Q3 2026 Call Report it reported total assets of $1.6B, total deposits of $1.4B and net loans of $1.2B. Its primary federal regulator is FDIC. Its current parent is MAIN STREET GROUP BANCSHARES INC.
Plain-language readout
MAIN STREET BANK has 35 quarters of reported history on file, from Q4 2017 to Q3 2026.
Total assets peaked at $1.7B in Q4 2023 and were lowest at $1.0B in Q4 2017.
Total deposits were highest at $1.4B in Q4 2023 and lowest at $806M in Q4 2019.
Over the whole period total assets rose 63.6%.
| Quarter | Assets | Deposits | Net loans | ROA | ROE | NIM |
|---|---|---|---|---|---|---|
| Q3 2026 | $1.6B | $1.4B | $1.2B | 0.40% | 3.67% | 3.02% |
| Q2 2026 | $1.7B | $1.4B | $1.2B | 0.63% | 5.73% | 3.01% |
| Q1 2026 | $1.6B | $1.3B | $1.3B | 0.53% | 4.86% | 3.01% |
| Q4 2025 | $1.7B | $1.3B | $1.3B | 0.63% | 6.38% | 2.91% |
| Q3 2025 | $1.7B | $1.3B | $1.3B | 0.70% | 7.16% | 2.83% |
| Q2 2025 | $1.7B | $1.4B | $1.3B | 0.66% | 6.94% | 2.76% |
| Q1 2025 | $1.6B | $1.4B | $1.3B | 0.71% | 7.41% | 2.78% |
| Q4 2024 | $1.6B | $1.3B | $1.3B | 0.49% | 5.47% | 2.63% |
| Q3 2024 | $1.6B | $1.3B | $1.3B | 0.43% | 4.79% | 2.65% |
| Q2 2024 | $1.6B | $1.4B | $1.3B | 0.33% | 3.82% | 2.65% |
| Q1 2024 | $1.7B | $1.4B | $1.3B | 0.16% | 1.84% | 2.61% |
| Q4 2023 | $1.7B | $1.4B | $1.4B | 0.39% | 4.42% | 2.83% |
Branches
76 branches of 19 other banks sit within 10 miles of Main Street Bank.
Filled dots are this bank's branches; open dots are other banks' branches inside the radius; the red ring marks the centre. Drawn to scale on a flat projection, without a base map.
| Bank | Branches in radius |
|---|---|
| MIDDLESEX SAVINGS BANK | 14 |
| AVIDIA BANK | 9 |
| CITIZENS BANK NATIONAL ASSN | 9 |
| BANK OF AMERICA NA | 8 |
| JPMORGAN CHASE BANK NA | 8 |
| TD BANK NATIONAL ASSN | 7 |
| SANTANDER BANK N A | 5 |
| MANUFACTURERS&TRADERS TR CO | 3 |
| MUTUALONE BANK | 2 |
| ROCKLAND TRUST CO | 2 |
| BANKHOMETOWN | 1 |
| BEACON BANK&TRUST | 1 |
| NEEDHAM BANK | 1 |
| NORTHEAST COMMUNITY BANK | 1 |
| NORTHERN BANK&TRUST CO | 1 |
Branch locations are from the FDIC institution directory. Deposits per branch are on the History page.
History
| Line | Q2 2026 | Q1 2026 | Change | Change, percent |
|---|---|---|---|---|
| Assets | ||||
| Cash and balances due from depository institutions | $33.6M | $26.2M | +$7.4M | +28.2% |
| Federal funds sold | $398K | $591K | -$193K | -32.7% |
| Securities purchased under agreements to resell | $0K | $0K | $0K | n/a |
| Securities (available for sale at fair value plus held to maturity net of allowance) | $316.5M | $243.2M | +$73.4M | +30.2% |
| Equity securities with readily determinable fair values, not held for trading | $433K | $436K | -$3K | -0.7% |
| Loans and leases held for sale | $0K | $0K | $0K | n/a |
| Net loans and leases (after allowance) | $1.24B | $1.27B | -$25.7M | -2.0% |
| Trading assets | $0K | $0K | $0K | n/a |
| Premises and fixed assets | $9.5M | $9.7M | -$126K | -1.3% |
| Other real estate owned | $0K | $0K | $0K | n/a |
| Investments in unconsolidated subsidiaries and associated companies | $0K | $0K | $0K | n/a |
| Direct and indirect investments in real estate ventures | $0K | $0K | $0K | n/a |
| Intangible assets (goodwill, servicing, other) | $900K | $2.2M | -$1.3M | -59.5% |
| All other assets | $60.3M | $60.3M | +$19K | +0.0% |
| Total assets | $1.67B | $1.61B | +$53.4M | +3.3% |
| Liabilities | ||||
| Total deposits | $1.39B | $1.34B | +$48.9M | +3.6% |
| Federal funds purchased | $0K | $0K | $0K | n/a |
| Securities sold under agreements to repurchase | $0K | $0K | $0K | n/a |
| Trading liabilities | $0K | $0K | $0K | n/a |
| Other borrowed money | $62.4M | $58.4M | +$4.0M | +6.9% |
| Subordinated notes and debentures | $0K | $0K | $0K | n/a |
| All other liabilities | $25.9M | $29.2M | -$3.2M | -11.1% |
| Total liabilities | $1.48B | $1.43B | +$49.7M | +3.5% |
| Equity | ||||
| Perpetual preferred stock | $0K | $0K | $0K | n/a |
| Common stock | $0K | $0K | $0K | n/a |
| Surplus | $0K | $0K | $0K | n/a |
| Retained earnings | $203.0M | $200.0M | +$3.0M | +1.5% |
| Accumulated other comprehensive income | -$19.3M | -$20.0M | +$715K | +3.6% |
| Other equity components | $0K | $0K | $0K | n/a |
| Total equity capital | $183.7M | $180.0M | +$3.7M | +2.1% |
| Credit and capital | ||||
| Gross nonperforming assets | $21.2M | $21.3M | -$131K | -0.6% |
| Adjusted nonperforming assets | $21.2M | $21.3M | -$131K | -0.6% |
| Tangible equity plus allowance | $194.1M | $189.5M | +$4.5M | +2.4% |
| Texas ratio (gross) | 10.91% | 11.24% | -0.33 pts | See points |
| Texas ratio (adjusted) | 10.91% | 11.24% | -0.33 pts | See points |
| Texas ratio (adjusted, with performing restructured) | Not reported | Not reported | Not reported | See points |
| Tier 1 capital to risk-weighted assets | 17.31% | 16.51% | +0.80 pts | See points |
| Common equity Tier 1 to risk-weighted assets | 17.31% | 16.51% | +0.80 pts | See points |
| Tier 2 capital to risk-weighted assets | 1.00% | 1.01% | -0.01 pts | See points |
| Total risk-based capital to risk-weighted assets | 18.31% | 17.52% | +0.78 pts | See points |
| Tier 1 leverage (approximate) | 12.04% | 12.06% | -0.03 pts | See points |
| Construction and land loans to total capital | 33.63% | 35.25% | -1.62 pts | See points |
| Commercial real estate to total capital | 152.78% | 154.71% | -1.93 pts | See points |
| Dividend payout, year to date | 0.00% | 0.00% | 0.00 pts | See points |
| Securities unrealized gain (loss) to Tier 1 capital | -13.40% | -13.54% | +0.14 pts | See points |
| Liquidity | ||||
| Core deposits | $1.22B | $1.18B | +$46.4M | +3.9% |
| Non-core funding | $233.7M | $227.2M | +$6.5M | +2.9% |
| Loans to core deposits | 102.69% | 108.98% | -6.28 pts | See points |
| Loans to deposits | 90.06% | 95.29% | -5.23 pts | See points |
| Brokered deposits share of deposits | 7.72% | 7.71% | +0.01 pts | See points |
| Pledged securities share of securities | 41.25% | 63.98% | -22.73 pts | See points |
| Loans pledged, share of loans | 44.62% | 44.87% | -0.25 pts | See points |
| Volatile liabilities | $234.5M | $228.0M | +$6.5M | +2.9% |
| Earnings | ||||
| Earnings before provision, year to date | $6.6M | $2.5M | +$4.1M | +160.6% |
| Earnings before provision, single quarter | $4.1M | $2.5M | +$1.5M | +60.6% |
| Provision for credit losses, year to date | -$868K | -$408K | -$460K | -112.7% |
| Yield and cost | ||||
| Yield on loans and leases | 5.42% | 5.42% | -0.00 pts | See points |
| Yield on interest-bearing balances due from banks | 2.84% | 2.79% | +0.04 pts | See points |
| Total interest income to average assets | 4.81% | 4.82% | -0.01 pts | See points |
| Cost of interest-bearing transaction accounts | 1.47% | 1.82% | -0.35 pts | See points |
| Cost of savings and money market deposits | 2.79% | 2.61% | +0.18 pts | See points |
| Cost of time deposits | 3.64% | 3.73% | -0.08 pts | See points |
| Total interest expense to average assets | 1.99% | 1.97% | +0.02 pts | See points |
Dollar lines show the change in dollars and percent. Ratio lines show the change in percentage points. Earnings lines marked year to date restart each January; the single-quarter line removes that restart.
Recent activity
Deterministic, evidence-linked observations only — not a prediction, rating or recommendation. What counts as Notable.
Main Street Bank changed deposits by $164M and market share by 0.191906 points in Middlesex County, MA
Source ↗Main Street Bank changed deposits by $71.2M and market share by -0.004453 points in MA
Source ↗Main Street Bank changed deposits by −$92.9M and market share by -0.389788 points in Worcester County, MA
Source ↗NIC transformation 1
Ten-year database
| Quarter | Assets | Deposits | Net loans | ROA | ROE | NIM |
|---|---|---|---|---|---|---|
| 2026-09-30 | $1.6B | $1.4B | $1.2B | 0.40% | 3.67% | 3.02% |
| 2026-06-30 | $1.7B | $1.4B | $1.2B | 0.63% | 5.73% | 3.01% |
| 2026-03-31 | $1.6B | $1.3B | $1.3B | 0.53% | 4.86% | 3.01% |
| 2025-12-31 | $1.7B | $1.3B | $1.3B | 0.63% | 6.38% | 2.91% |
| 2025-09-30 | $1.7B | $1.3B | $1.3B | 0.70% | 7.16% | 2.83% |
| 2025-06-30 | $1.7B | $1.4B | $1.3B | 0.66% | 6.94% | 2.76% |
| 2025-03-31 | $1.6B | $1.4B | $1.3B | 0.71% | 7.41% | 2.78% |
| 2024-12-31 | $1.6B | $1.3B | $1.3B | 0.49% | 5.47% | 2.63% |
| 2024-09-30 | $1.6B | $1.3B | $1.3B | 0.43% | 4.79% | 2.65% |
| 2024-06-30 | $1.6B | $1.4B | $1.3B | 0.33% | 3.82% | 2.65% |
| 2024-03-31 | $1.7B | $1.4B | $1.3B | 0.16% | 1.84% | 2.61% |
| 2023-12-31 | $1.7B | $1.4B | $1.4B | 0.39% | 4.42% | 2.83% |
| 2023-09-30 | $1.7B | $1.4B | $1.3B | 0.40% | 4.48% | 2.86% |
| 2023-06-30 | $1.6B | $1.3B | $1.2B | 0.41% | 4.44% | 2.95% |
| 2023-03-31 | $1.5B | $1.3B | $1.1B | 0.50% | 5.36% | 3.10% |
| 2022-12-31 | $1.5B | $1.3B | $1.1B | 0.73% | 7.27% | 3.24% |
| 2022-09-30 | $1.4B | $1.2B | $1.1B | 0.70% | 6.91% | 3.23% |
| 2022-06-30 | $1.4B | $1.2B | $988M | 0.58% | 5.56% | 3.11% |
| 2022-03-31 | $1.4B | $1.2B | $962M | 0.62% | 5.82% | 3.00% |
| 2021-12-31 | $1.4B | $1.2B | $971M | 0.66% | 6.15% | 3.18% |
| 2021-09-30 | $1.3B | $1.1B | $916M | 0.71% | 6.65% | 3.25% |
| 2021-06-30 | $1.3B | $1.1B | $928M | 0.77% | 7.12% | 3.24% |
| 2021-03-31 | $1.2B | $1.0B | $923M | 0.91% | 8.35% | 3.33% |
| 2020-12-31 | $1.2B | $1.0B | $922M | 0.61% | 5.31% | 3.28% |
| 2020-09-30 | $1.2B | $969M | $914M | 0.45% | 3.90% | 3.32% |
| 2020-06-30 | $1.2B | $930M | $914M | 0.37% | 3.14% | 3.38% |
| 2020-03-31 | $1.1B | $815M | $818M | -0.14% | -1.14% | 3.48% |
| 2019-12-31 | $1.0B | $806M | $808M | 0.51% | 4.29% | 3.49% |
| 2019-09-30 | $1.0B | $823M | $819M | 0.57% | 4.82% | 3.47% |
| 2019-06-30 | $1.0B | $863M | $801M | 0.55% | 4.68% | 3.41% |
| 2019-03-31 | $1.0B | $864M | $792M | 0.88% | 7.56% | 3.45% |
| 2018-12-31 | $1.0B | $868M | $796M | 0.63% | 5.43% | 3.43% |
| 2018-09-30 | $1.0B | $859M | $778M | 0.67% | 5.82% | 3.40% |
| 2018-06-30 | $1.0B | $842M | $765M | 0.69% | 5.91% | 3.34% |
| 2017-12-31 | $1.0B | $825M | $741M | 0.63% | 5.58% | 3.51% |
Branch and geographic intelligence
FDIC branch-location snapshot dated 2026-08-22
| Market | State | Locations | Main offices | Earliest establishment |
|---|---|---|---|---|
| Ayer | MA | 1 | 0 | Unavailable |
| Hudson | MA | 1 | 0 | Unavailable |
| Marlborough | MA | 1 | 1 | Unavailable |
| Northborough | MA | 1 | 0 | Unavailable |
| Pepperell | MA | 1 | 0 | Unavailable |
| Southborough | MA | 1 | 0 | Unavailable |
Reviewed NIC structure change on 2017-04-01: RSSD 317100 → 818401 (1). The location count above reflects the current combined network and is not itself a measure of organic branch growth.
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 |
|---|---|---|---|---|
| MA | $1.4B | 0.24% | 39 | Continuing · -0.00 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.
Ownership, transformations and revisions
NIC relationships are time-bounded. Reviewed filing revisions remain distinct from mergers.
MAIN STREET GROUP BANCSHARES INCRSSD 3469363 · 2007-06-05 to current
Unresolved entityRSSD 5396070 · 2017-04-01 to current
Unresolved entityRSSD 5396128 · 2017-04-01 to current
Unresolved entityRSSD 3614006 · 2007-06-30 to current
Unresolved entityRSSD 3614015 · 2007-06-30 to current
Unresolved entityRSSD 3614006 · 2007-06-05 to 2007-06-29
Unresolved entityRSSD 3614015 · 2007-06-05 to 2007-06-29
2017-04-01RSSD 317100 → 818401 · code 1
No reviewed revisions published.
Latest registered batch · retrieved Nov 13, 2026, 9:56 PM UTC · SHA-256 ed672d3d5db4d4a7219e7b578e217752940125a23284d56e2da0f5ecb1d0d536 · source ↗