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Teamsters Union 25 Health Services & Insurance Plan
Founded in 1955, the Teamsters Union 25 Health Services & Insurance Plan emerged from collective bargaining between Boston's Teamsters Local 25 and...
Teamsters Union 25 Health Services & Insurance Plan
Founded in 1955, the Teamsters Union 25 Health Services & Insurance Plan emerged from collective bargaining between Boston's Teamsters Local 25 and participating employers. It is a multi-employer, jointly trusteed plan under Section 501(c)(9) of the Internal Revenue Code. The Board includes an equal number of union and employer representatives, co-chaired by Thomas G. Mari of the union and Michael Shaughnessy of Shaughnessy & Ahern Co. The plan's mandate is narrow: it provides medical, dental, vision, pharmacy, and hearing benefits exclusively to eligible Local 25 members and their families. The fund's investment portfolio is estimated at $301 million (Altss estimate). Its strategy is classified as growth-oriented. The plan deploys capital primarily through third-party benefit partners — Blue Cross Blue Shield for medical, Express Scripts for pharmacy, and Davis Vision — but it also directly owns and operates a network of clinical real estate. Its balance sheet includes a headquarters and major clinic at 529 Main Street in Charlestown, a standalone pharmacy next door, and clinical facilities in Chelmsford and Stoughton. The property portfolio also extends to land holdings, including parcels on Main Street and Mishawum Street in Charlestown. The plan is administered by a small professional staff led by Executive Director Maria Gnerre. It maintains clinical operations across at least four Massachusetts locations, offering in-house audiology, dentistry, behavioral health, and pharmacy services. The fund is closely tied to the broader Teamsters ecosystem: it affiliates with Teamsters Joint Council 10 New England and partners with the New England Teamsters Federal Credit Union. Its philanthropic arms include the Teamsters Local 25 Autism Fund, a holiday toy drive, and a scholarship fund. May 2026: The plan promoted wellness initiatives including an AHealthyMe video-quiz program and a Healthy Vision Month campaign. What separates the Teamsters 25 plan from a standard Taft-Hartley fund is its integrated clinical service model. Instead of purely outsourcing care, it operates brick-and-mortar treatment centers and a pharmacy directly on its Charlestown campus, giving trustees a dual role as both healthcare financiers and direct care providers for 18,000 plan participants.
General information
Firm type
Pension Fund
Year founded
1955
AUM
$301M (Altss estimate)
Location
Region
North America
Country
United States
City
Charlestown
Corporate office
529 Main Street, Suite 209, Charlestown, MA 02129
Additional offices
Chelmsford, MA · Stoughton, MA
Principals
Thomas G. Mari
Union Co-Chairman of the Board of Trustees
Michael Shaughnessy
Employer Co-Chairman of the Board of Trustees
Altss tracks 1 additional named team member for this firm — including direct investment leads, IR, and operating principals not listed on the public website.
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Frequently asked questions
Who makes investment decisions for the Teamsters Union 25 Health Services & Insurance Plan?
The plan is administered by a Board of Trustees with equal representation from the union and participating employers. Union Co-Chair Thomas G. Mari and Employer Co-Chair Michael Shaughnessy lead the board, while day-to-day administration falls to Executive Director Maria Gnerre. Specific investment committee structures are not publicly detailed.
How large is the Teamsters Union 25 Health Services & Insurance Plan's investment portfolio?
The plan does not publicly disclose its assets under management. An estimate places the portfolio at approximately $301 million (Altss estimate), reflecting its role as a mid-sized multi-employer health and welfare fund.
What is a Taft-Hartley trust, and how does it affect the plan's structure?
A Taft-Hartley trust is a jointly administered employee benefit fund created under Section 302(c)(5) of the Labor Management Relations Act. It requires equal representation from labor and management on the board and restricts assets to providing benefits for covered workers. The Teamsters 25 plan is qualified under Section 501(c)(9) of the tax code, which further limits its activities to health and welfare benefits.
Does the plan invest directly in healthcare real estate or operating companies?
The plan owns the real estate from which it operates clinical services, including its Charlestown headquarters and clinic, a separate pharmacy building, and facilities in Chelmsford and Stoughton. It also holds additional land parcels in Charlestown. This direct ownership differentiates it from many multi-employer plans that lease clinic space.
Which employers contribute to the Teamsters Union 25 Health Services & Insurance Plan?
The plan lists several employer trustees on its board, including Shaughnessy & Ahern Co., Freeman Expositions, LLC, and Martignetti Companies. These trustees represent the contributing employers, though a full list of participating employers is not publicly available.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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