Bank/CU Name: MountainOne Bank Charter Number: 90253
Charter Type: Savings Bank – Mutual Holding Company Main Office: 93 Main Street , North Adams, MA 01247-3405 Phone: 855-444-6861
Charter Date: 4/26/1848 Federal Regulator: FDIC Fax: 413-662-2125

Activity Date Activity Type Description
8/29/2025 Public Hearing Virtual Hearing Tuesday, September 9, 2025 At 1:30 P.M. MountainOne Financial, MHC (MHC) and MountainOne Financial, Inc. (Financial), North Adams - permission for each to become a bank holding company through the direct and indirect acquisition of Mechanics Cooperative Bank (Mechanics), Taunton. MHC and Financial are the mutual holding company and mid-tier holding company, respectively, of MountainOne Bank, North Adams. The transaction will be effected through a merger of MHC with Mechanics’ mutual holding company, Mechanics Bancorp, MHC and the merger of Financial with Mechanics’ mid-tier holding company, Mechanics Bancorp, Inc. Upon consummation of the transaction, MHC and Financial would be the mutual holding company and mid-tier holding company for both MountainOne Bank and Mechanics Cooperative Bank. Comment period ends September 16, 2025. The hearing notice has been posted on the Division’s website. An updated post providing additional information regarding the virtual link to the hearing will be available at www.mass.gov/dob on Monday, September 8, 2025 by noon.
7/31/2025 Public Hearing Virtual Hearing Tuesday, September 9, 2025 At 1:30 P.M. MountainOne Financial, MHC (MHC) and MountainOne Financial, Inc. (Financial), North Adams - permission for each to become a bank holding company through the direct and indirect acquisition of Mechanics Cooperative Bank (Mechanics), Taunton. MHC and Financial are the mutual holding company and mid-tier holding company, respectively, of MountainOne Bank, North Adams. The transaction will be effected through a merger of MHC with Mechanics’ mutual holding company, Mechanics Bancorp, MHC and the merger of Financial with Mechanics’ mid-tier holding company, Mechanics Bancorp, Inc. Upon consummation of the transaction, MHC and Financial would be the mutual holding company and mid-tier holding company for both MountainOne Bank and Mechanics Cooperative Bank. Comment period ends September 16, 2025. The hearing notice has been posted on the Division’s website. An updated post providing additional information regarding the virtual link to the hearing will be available at www.mass.gov/dob on Monday, September 8, 2025 by noon.
6/30/2025 Acquisition of BHC by BHC Applications Filed: MountainOne Financial, MHC (MHC) and MountainOne Financial, Inc. (Financial), North Adams - permission to each become a bank holding company through the direct and indirect acquisition of Mechanics Cooperative Bank (Mechanics), Taunton. MHC and Financial are the mutual holding company and mid-tier holding company, respectively, of MountainOne Bank, North Adams. The transaction will be effected through a merger of MHC with Mechanics’ mutual holding company, Mechanics Bancorp, MHC and the merger of Financial with Mechanics’ mid-tier holding company, Mechanics Bancorp, Inc. Upon consummation of the transaction, MHC and Financial would be the mutual holding company and mid-tier holding company for both MountainOne Bank and Mechanics Cooperative Bank. A hearing on the application to become holding companies by acquiring Mechanics Bancorp, MHC and Mechanics Bancorp, Inc. and thereby acquiring Mechanics will be scheduled before the Board of Bank Incorporation. Additional information regarding this hearing will be posted to the Division of Banks website at www.mass.gov/dob.
4/30/2018 Close Branch MountainOne Bank, North Adams - permission to close its branch office located at 140 Commonwealth Avenue, Danvers - approved April 25, 2018.
3/30/2018 Close Branch MountainOne Bank, North Adams - permission to close its branch office located at 140 Commonwealth Avenue, Danvers. Comment period ends April 4, 2018.
6/30/2014 Establish Branch MountainOne Bank, North Adams - notice to establish a branch office at 140 Commonwealth Avenue, Danvers - non-objection issued June 6, 2014.
5/30/2014 Establish Branch MountainOne Bank, North Adams - notice to establish a branch office at 140 Commonwealth Avenue, Danvers. Filed May 6, 2014.
7/31/2013 Merger Hoosac Bank (“Hoosac”), North Adams and South Coastal Bank, Rockland - permission to merge under the charter and by-laws of Hoosac Bank and under the name of MountainOne Bank. The main office of Hoosac will remain the main office of the continuing institution and the banking offices of South Coastal Bank would be retained as branch offices of Hoosac - approved July 8, 2013.
6/28/2013 Close Branch Hoosac Bank, North Adams - permission to close its branch office located at 296 Main Street, Williamstown - approved June 7, 2013.
5/31/2013 Merger Hoosac Bank (“Hoosac”), North Adams and South Coastal Bank, Rockland - permission to merge under the charter and by-laws of Hoosac Bank and under the name of MountainOne Bank. The main office of Hoosac will remain the main office of the continuing institution and the banking offices of South Coastal Bank would be retained as branch offices of Hoosac. Comment period ended April 24, 2013.
5/31/2013 Close Branch Hoosac Bank, North Adams - permission to close its branch office located at 296 Main Street, Williamstown. Comment period ended April 12, 2013.
4/30/2013 Close Branch Hoosac Bank, North Adams - permission to close its branch office located at 296 Main Street, Williamstown. Comment period ended April 12, 2013.
4/30/2013 Merger Hoosac Bank (“Hoosac”), North Adams and South Coastal Bank, Rockland - permission to merge under the charter and by-laws of Hoosac Bank and under the name of MountainOne Bank. The main office of Hoosac will remain the main office of the continuing institution and the banking offices of South Coastal Bank would be retained as branch offices of Hoosac. Comment period ended April 24, 2013.
3/31/2013 Merger Hoosac Bank (“Hoosac”), North Adams and South Coastal Bank, Rockland - permission to merge under the charter and by-laws of Hoosac Bank and under the name of MountainOne Bank. The main office of Hoosac will remain the main office of the continuing institution and the banking offices of South Coastal Bank would be retained as branch offices of Hoosac. Comment period ends April 24, 2013.
2/28/2013 Establish Branch Hoosac Bank, Pittsfield - notice to establish a branch office at 111 Silver Lake Boulevard, Pittsfield - non-objection issued February 19, 2013.
1/31/2013 Establish Branch Hoosac Bank, Pittsfield - notice to establish a branch office at 111 Silver Lake Boulevard, Pittsfield. Filed January 22, 2013.
3/30/2012 Merger Hoosac Bank (“Hoosac”), North Adams and Williamstown Savings Bank (“Williamstown”), Williamstown - permission to merge under the charter, by-laws and name of Hoosac Bank. The main office of Hoosac would remain the main office of the continuing institution and the sole banking office of Williamstown would be retained as a branch office - approved March 30, 2012.
2/29/2012 Merger Hoosac Bank (“Hoosac”), North Adams and Williamstown Savings Bank (“Williamstown”), Williamstown - permission to merge under the charter, by-laws and name of Hoosac Bank. The main office of Hoosac would remain the main office of the continuing institution and the sole banking office of Williamstown would be retained as a branch office. Comment period ends March 20, 2012.
5/31/2007 Acquisition of Bank by a company MountainOne Financial Partners, MHC, North Adams, Massachusetts, and its mid-tier stock holding company subsidiary (the "Petitioners") - permission to acquire ownership of and control of South Coastal Bank ("South Coastal"), Rockland, Massachusetts, through a merger with South Coastal's mutual holding company, South Coastal Holdings MHC, Inc. The Petitioners are the mutual holding company and mid-tier stock holding company for Hoosac Bank, North Adams, Massachusetts and Williamstown Savings Bank, Williamstown, Massachusetts. As a result of this transaction, the Petitioners will control South Coastal Bank in addition to its existing bank subsidiaries, Hoosac Bank and Williamstown Savings Bank. Comment period ended May 11, 2007.
4/30/2002 Establish a BHC MountainOne Financial Partners, MHC ("MountainOne MHC") and MountainOne Financial Partners, Inc., North Adams, Massachusetts - permission to become bank holding companies for Hoosac Bank, North Adams and Williamstown Savings Bank, Williamstown, Massachusetts. As part of this transaction the then existing mutual holding company of each bank will merge with and into MountainOne MHC (In Organization) - approved April 25, 2002.
4/30/2002 Merger Hoosac Financial Services, Inc. ("Hoosac Financial"), North Adams and Williamstown Mutual Holding Company (In Organization) ("Williamstown MHC"), Williamstown - permission to merge with and into MountainOne Financial Partners, MHC (In Organization) ("MountainOne MHC"), North Adams. Hoosac Financial is the mutual holding company for Hoosac Bank and Williamstown MHC is the proposed mutual holding company for Williamstown Savings Bank. Upon consummation of the proposed transaction both banks will be maintained as separate subsidiaries of MountainOne Financial Partners, Inc., the mid-tier holding company subsidiary of MountainOne MHC - approved April 25, 2002.
3/29/2002 Merger Hoosac Financial Services, Inc. ("Hoosac Financial"), North Adams and Williamstown Mutual Holding Company (In Organization) ("Williamstown MHC"), Williamstown - permission to merge with and into MountainOne Financial Partners, MHC (In Organization) ("MountainOne MHC"), North Adams. Hoosac Financial is the mutual holding company for Hoosac Bank and Williamstown MHC is the proposed mutual holding company for Williamstown Savings Bank. Upon consummation of the proposed transaction both banks will be maintained as separate subsidiaries of MountainOne Financial Partners, Inc., the mid-tier holding company subsidiary of MountainOne MHC. Comment period ended December 14, 2001.
3/29/2002 Establish a BHC MountainOne Financial Partners, MHC ("MountainOne MHC") and MountainOne Financial Partners, Inc., North Adams, Massachusetts - permission to become bank holding companies for Hoosac Bank, North Adams and Williamstown Savings Bank, Williamstown, Massachusetts. As part of this transaction the then existing mutual holding company of each bank will merge with and into MountainOne MHC (In Organization). Comment period ended December 14, 2001.
2/28/2002 Merger Hoosac Financial Services, Inc. ("Hoosac Financial"), North Adams and Williamstown Mutual Holding Company (In Organization) ("Williamstown MHC"), Williamstown - permission to merge with and into MountainOne Financial Partners, MHC (In Organization) ("MountainOne MHC"), North Adams. Hoosac Financial is the mutual holding company for Hoosac Bank and Williamstown MHC is the proposed mutual holding company for Williamstown Savings Bank. Upon consummation of the proposed transaction both banks will be maintained as separate subsidiaries of MountainOne Financial Partners, Inc., the mid-tier holding company subsidiary of MountainOne MHC. Comment period ended December 14, 2001.
2/28/2002 Establish a BHC MountainOne Financial Partners, MHC ("MountainOne MHC") and MountainOne Financial Partners, Inc., North Adams, Massachusetts - permission to become bank holding companies for Hoosac Bank, North Adams and Williamstown Savings Bank, Williamstown, Massachusetts. As part of this transaction the then existing mutual holding company of each bank will merge with and into MountainOne MHC (In Organization). Comment period ended December 14, 2001.
1/31/2002 Establish a BHC MountainOne Financial Partners, MHC ("MountainOne MHC") and MountainOne Financial Partners, Inc., North Adams, Massachusetts - permission to become bank holding companies for Hoosac Bank, North Adams and Williamstown Savings Bank, Williamstown, Massachusetts. As part of this transaction the then existing mutual holding company of each bank will merge with and into MountainOne MHC (In Organization). Comment period ended December 14, 2001.
1/31/2002 Establish a BHC Hoosac Financial Services, Inc. ("Hoosac Financial"), North Adams and Williamstown Mutual Holding Company (In Organization) ("Williamstown MHC"), Williamstown - permission to merge with and into MountainOne Financial Partners, MHC (In Organization) ("MountainOne MHC"), North Adams. Hoosac Financial is the mutual holding company for Hoosac Bank and Williamstown MHC is the proposed mutual holding company for Williamstown Savings Bank. Upon consummation of the proposed transaction both banks will be maintained as separate subsidiaries of MountainOne Financial Partners, Inc., the mid-tier holding company subsidiary of MountainOne MHC. Comment period ended December 14, 2001.
12/31/2001 Establish a BHC MountainOne Financial Partners, MHC ("MountainOne MHC") and MountainOne Financial Partners, Inc., North Adams, Massachusetts - permission to become bank holding companies for Hoosac Bank, North Adams and Williamstown Savings Bank, Williamstown, Massachusetts. As part of this transaction the then existing mutual holding company of each bank will merge with and into MountainOne MHC (In Organization). Comment period ended December 14, 2001.
12/31/2001 Merger Hoosac Financial Services, Inc. ("Hoosac Financial"), North Adams and Williamstown Mutual Holding Company (In Organization) ("Williamstown MHC"), Williamstown - permission to merge with and into MountainOne Financial Partners, MHC (In Organization) ("MountainOne MHC"), North Adams. Hoosac Financial is the mutual holding company for Hoosac Bank and Williamstown MHC is the proposed mutual holding company for Williamstown Savings Bank. Upon consummation of the proposed transaction both banks will be maintained as separate subsidiaries of MountainOne Financial Partners, Inc., the mid-tier holding company subsidiary of MountainOne MHC. Comment period ended December 14, 2001.
11/30/2001 Merger Hoosac Financial Services, Inc. ("Hoosac Financial"), North Adams and Williamstown Mutual Holding Company (In Organization) ("Williamstown MHC"), Williamstown - permission to merge with and into MountainOne Financial Partners, MHC (In Organization) ("MountainOne MHC"), North Adams. Hoosac Financial is the mutual holding company for Hoosac Bank and Williamstown MHC is the proposed mutual holding company for Williamstown Savings Bank. Upon consummation of the proposed transaction both banks will be maintained as separate subsidiaries of MountainOne Financial Partners, Inc., the mid-tier holding company subsidiary of MountainOne MHC. Comment period ends December 14, 2001.
10/31/2001 Merger Hoosac Financial Services, Inc. ("Hoosac Financial"), North Adams and Williamstown Mutual Holding Company (In Organization) ("Williamstown MHC"), Williamstown - permission to merge with and into MountainOne Financial Partners, MHC (In Organization) ("MountainOne MHC"), North Adams. Hoosac Financial is the mutual holding company for Hoosac Bank and Williamstown MHC is the proposed mutual holding company for Williamstown Savings Bank. Upon consummation of the proposed transaction both banks will be maintained as separate subsidiaries of MountainOne Financial Partners, Inc., the mid-tier holding company subsidiary of MountainOne MHC. Comment period ends December 14, 2001.