Marc D. Mantell
Member / Co-Chair, Mergers & Acquisitions Practice
+1.617.348.3058
Marc’s practice focuses on corporate, M&A, and securities law matters, primarily for companies engaged in the technology ecosystem. Marc represents private and public companies, investors, underwriters, and other parties in a broad range of transactions, including mergers and acquisitions, securities offerings, and debt financings.
He has extensive experience representing venture-backed and closely held companies and private equity firms in middle-market mergers and acquisitions transactions across a broad range of industries, including technology and software, medical device and life sciences, industrial and manufacturing, and retail and consumer products. His experience includes strategic acquisitions and divestitures, private equity transactions, complex earn-out arrangements, cross-border deals, equity and debt financings, and recapitalizations.
Marc also routinely serves as a trusted advisor to both domestic and non-US-based companies in the establishment of new businesses and the ongoing compliance with US corporate and securities laws and other regulations related to the entities’ inbound transactions and business goals.
Before joining Mintz, Marc practiced in the Boston office of an international law firm. Prior to practicing law, he taught history and government at a private school in Maine.
Experience
- Pieris Pharmaceuticals (NASDAQ: PIRS) in its reverse merger with Palvella Therapeutics.
- A medical device company in its sale to Zimmer Biomet (NYSE: ZBH).
- Katz Nannis + Solomon, a full-service CPA firm, in its sale to Cherry Baekart, a portfolio company of Parthenon Capital.
- The founders of a digital marketing company in its recapitalization and investment by Calera Capital.
- New England Fertilizer Co. (NEFCO), a biosolids processing company, in its sale to Synagro, a portfolio company of West Street Infrastructure Partners, an infrastructure investment fund managed by Goldman Sachs.
- Grundfos, a global market leader in pump manufacturing headquartered in Denmark, in the acquisition of Water Works, an ultrapure water treatment company.
- Bauwerk Group AG, a leading Swiss-based manufacturer of parquet flooring, in its purchase of Somerset Hardwood Flooring, a vertically integrated forest products company.
- Feeney Utility Services Group in its sale to Artera Services, LLC, a Clayton, Dubilier & Rice portfolio company.
- LeanIX, a German-based enterprise architecture company, in its acquisition of Cleanshelf, a leading enterprise SaaS management company.
- 55ip, a fintech delivering tax-smart investment strategies, in its sale to JP Morgan Asset Management.
- Lacerta Group, a designer and manufacturer of specialty thermoformed packaging solutions, in a strategic investment by SK Capital Partners.
- Represented LPL Financial (NASDAQ: LPLA) in its acquisition of Blaze Portfolio, a trading and portfolio rebalancing software company.
- Dec Group, the leading global provider of containment solutions, in its acquisition of the Extract Technology business from Wabash National Corporation (NYSE: WNC).
- Investors in a PIPE financing of Conversion Labs (OTCQB: CVLB), a direct-to-consumer telemedicine and wellness company.
- Censa Pharmaceuticals in its sale to PTC Therapeutics (NASDAQ: PTCT).
- Boston Dynamics in its acquisition of Kinema Systems, a developer of deep-learning software and vision sensors.
- NeuroBo Pharmaceuticals in its reverse merger going-public transaction with Gemphire Therapeutics (NASDAQ: GEMP).
- Big Belly Solar, a global leader in smart waste solutions for public spaces, in its recapitalization and investment by McCarthy Capital.
- Corindus Vascular Robotics (NYSE AM: CVRS) in common stock and preferred stock PIPE financings.
- Represented LPL Financial (NASDAQ: LPLA) in its acquisition of AdvisoryWorld, a provider of digital solutions designed to help financial advisors attract and serve client assets.
- Microbot Medical (NASDAQ: MBOT) in its reverse merger, going public transaction, and several registered direct offerings.
- KD Pharma, a German-based Omega-3 producer, in its merger with Marine Ingredients, its investment in Nutriceutical Holdings, and its acquisition of the Ocean Blue brand assets.
- Censa Pharmaceuticals in its strategic collaboration with Retrophin, Inc. (NASDAQ: RTRX), which included an exclusive option for Retrophin to acquire Censa.
- JN Philips Auto Glass in a leveraged buyout by CenterOak Partners LLC.
- Pieris Pharmaceuticals (NASDAQ: PIRS) in its reverse merger going-public transaction and several subsequent public offering and PIPE financings.
- Feeney Brothers Utility Services in its merger with DDS Companies, a provider of utility, engineering, and telecom services.
- C-4 Analytics, a digital marketing company, in its strategic partnership with BV Investment Partners.
- Seventh Generation, a household products company, in its sale to Unilever (NYSE: UL).
- Greentech Media, an information services provider, in its sale to Verisk Analytics (NASDAQ: VRSK).
- Targacept, Inc. (NASDAQ: TRGT) in its reverse merger with Catalyst Biosciences.
- True Office, an interactive learning and analytics company, in its sale to Intercontinental Exchange (NYSE: ICE), the parent company of the New York Stock Exchange.
- Emory University in its joint venture with two clinical diagnostic testing companies, Eurofins Genomic Clinical Diagnostics US Holdings, Inc. and EGL Genetic Diagnostics LLC.
- Allegro Diagnostics Corp. in its sale to Veracyte, Inc. (NASDAQ: VCYT).
- Boston Dynamics, a robotics company, in its sale to Google (NASDAQ: GOOG).
- Columbia Capital, in its strategic investment in IntelliBatt, a California-based battery backup and predictive services company.
- Vortex Medical, a medical device company, in its sale to AngioDynamics, Inc. (NASDAQ: ANGO).
- Natural foods maker FoodShouldTasteGood in its sale to General Mills (NYSE: GIS).
- Family-owned distributor of personal grooming devices, The W.E. Bassett Company, in the acquisition by Pacific World Corporation, a portfolio company of Levine Leichtman Capital Partners.
- Represented LPL Financial (NASDAQ: LPLA) in the acquisition of several registered advisory firms.
viewpoints
Massachusetts Advances Framework for Responsible Use of Robotics
July 22, 2026 | Alert | By Marc Mantell
Learn how Massachusetts’ proposed Responsible Robotics Act could reshape robotics compliance, liability, and public safety standards.
The Financing Environment and Current Trends in Robotics
June 9, 2025 | Blog | By Marc Mantell, Scott P. Dunberg, Carolina Säve, Danielle Barney
As we head into the second half of 2025, the prospects for innovation in robotics and artificial intelligence (AI) seem limitless. It is difficult to find an industry that hasn’t touted the potential for robotics and AI to bring significant growth and advancement: from agriculture to warehousing and logistics. Key sectors, including healthcare, financial services, retail, and manufacturing, are integrating robotics into their physical processes and attempting to optimize other aspects of their businesses through the use of AI, including the use of surgical robotics to enhance precision and efficiency in medical procedures and the adoption of robotics to increase safety, productivity and quality in manufacturing and logistics.
Acquiring U.S. Businesses: Considerations for European Companies and Private Equity Funds
May 9, 2023 | Advisory | By Marc Mantell, Robert Kidwell, Marina F. Rothberg
Amid ongoing growth in global M&A, buyers evaluating cross-border opportunities need to weigh many issues. Mintz M&A and antitrust attorneys look at considerations for European companies and private equity funds seeking targets in the United States, including US deal structures, antitrust regulations, and deal-reporting requirements.
Directors Beware — Your Emails and Texts Could Be Subject to Inspection Under Delaware Law
June 6, 2019 | Advisory | By Marc Mantell, Keunjung Cho
Control of Third Party Claims
April 22, 2019 | Alert | By Marc Mantell, Matthew E. Maguire
Preparing for an Exit: Selling Your Robotics Company
August 31, 2016 | Article | By Marc Mantell
News & Press
Mintz Advises Smartcar in Sale to Everyday Electric
October 12, 2026|
Mintz Advises Debticate in Acquisition by Automated Financial Systems
September 25, 2026|
M&A Buyers Beware: Who Bears the Cost of Defense of a Third-Party Claim?
February 1, 2025|
Mintz Advised Mahaffey USA on its Sale to Sunbelt Rentals Inc.
February 11, 2022|
Mintz Advises E.L. Harvey & Sons in Sale to Waste Connections
September 22, 2021|
Revisiting Earnouts During Coronavirus Pandemic
May 27, 2020|
Newton’s Marc Mantell Competes in SCORES Cup Soccer Event
August 7, 2017|
Mintz Represents Seventh Generation, Inc. in Sale to Unilever
October 27, 2016|
Preparing for an Exit: Selling Your Robotics Company
August 31, 2016|
Using Earnouts to Find an Exit
February 1, 2014|
Events & Speaking
Everything Life Sciences Companies Need to Know to Navigate the COVID-19 Pandemic
View the Webinar Recording
6th Annual World Life Sciences Conference
International Bar Association
InterContinental Boston 510 Atlantic Avenue Boston, MA 02210
Understanding Earn-Outs: Managing Risks and Navigating Traps for the Unwary
Boston Bar Association, Boston, MA
Recognition & Awards
The Legal 500 United States: Recommended for M&A – Middle-Market (2017 – 2018, 2026)
Massachusetts Super Lawyers: Rising Star – Mergers & Acquisitions (2013 – 2015)
Involvement
- Former Co-chair, Business Transactions Section, Boston Bar Association
- Former Co-chair, Mergers & Acquisitions Subcommittee, Boston Bar Association
- Member, American Bar Association
- Member, Board of Directors, America SCORES New England, a Boston nonprofit that provides youth soccer and literacy programs
Recent Insights
Mintz Advises Smartcar in Sale to Everyday Electric
October 12, 2026|
Mintz Advises Debticate in Acquisition by Automated Financial Systems
September 25, 2026|
