William T. Whelan: Lawyer with Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.

William T. Whelan


Peer Rating
AV® Preeminent

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Practice Areas

  • Mergers & Acquisitions
  • Securities & Capital Markets
  • Corporate Governance
  • Start-Ups
  • Joint Ventures
  • Strategic Alliances
  • Collaborations & Technology Transfer
  • Life Sciences
  • Technology
  • Communications & Media
  • Energy Technology
  • Medical Technology
Contact InfoTelephone: 617.348.1869
Fax: 617-542-2241
Internet: Each Attorney's Internet Address takes the following form: first initial, last name @mintz.com (e.g., rmintz@mintz.com)

University Middlebury College, B.A.
Law SchoolBoston University, J.D.
Admitted1983, Massachusetts

Professional & Community Involvement

•Past member, MIT Innovations Committee
•Member, American Bar Association
•Member, Massachusetts Bar Association
•Member, Boston Bar Association
•Member, 3rd Annual International Bar Association (IBA) World Life Sciences Conference Supporting Committee (2015)
•Member, Launchpad Venture Group


Bill serves as Co-chair of the firm's Life Sciences Practice. He focuses his practice on securities law, venture capital, and mergers and acquisitions. He regularly represents technology-based companies, principally in the areas of biotechnology, medical technologies, energy and clean technology, and software. He routinely counsels these clients on many aspects of their corporate development, from initial organization and acquisition of technology, through private financing and initial public offering, to strategic alliances and business combination transactions. He also regularly represents venture capital firms in portfolio investment activities and underwriters in public offerings and private placements of equity securities.

Bill has lectured at various Massachusetts Continuing Legal Education seminars on topics relating to corporate organization and mergers and acquisitions.

During law school, he served as editor-in-chief of the Boston University Law Review. Bill is a former law clerk to the Chief Judge of the US Court of Appeals for the District of Columbia Circuit.

Recognitions & Awards

Chambers USA: Massachusetts - Corporate/Mergers & Acquisitions (2014)
•Recommended by The Legal 500 United States for Healthcare: Life Sciences (2013)
Best Lawyers in America: Biotechnology Law (2013 - 2015)
•Martindale-Hubbell AV Preeminent


•Sixty-Two Mintz Levin Attorneys Included in The Best Lawyers in America, 2015 Edition, (08.18.2014)
• Nineteen Mintz Levin Attorneys and Seven Practice Areas Featured in 2014 Legal 500 United States Guide, (07.24.2014)
• Fifty-One Mintz Levin Attorneys Featured in Chambers USA 2014 Guide, (05.23.2014)
• Mintz Levin Named Biotechnology “Law Firm of the Year- North America” by M&A Today Global Awards, (02.20.2014)
• Sixty-Three Mintz Levin Attorneys Included in The Best Lawyers in America, 2014 Edition, (08.15.2013)
• Mintz Levin Represents Intercept Pharmaceuticals Inc. in Follow-On Public Offering, (07.01.2013)
• Eleven Mintz Levin Attorneys and Six Practice Areas Recommended by Legal 500 United States 2013, (06.18.2013)
• Sixty Mintz Levin Attorneys Included in The Best Lawyers in America, 2013 Edition, (08.24.2012)
• Mintz Levin's Life Sciences Practice Represents Boston Biomedical, Inc. in its Agreement with Dainippon Sumitomo Pharma Co., Ltd. to be Acquired for up to $2.63 Billion, (03.02.2012)
• Mintz Levin Represents Caliper Life Sciences in $600 Million Acquisition by PerkinElmer, (11.08.2011)
• Mintz Levin Represents BG Medicine in Closing of Initial Public Offering, (02.10.2011)
• William T. Whelan to moderate panel discussion at AdvaMed 2008 - The MedTech Conference, (09.23.2008)

Speaking Engagements

•Panelist, Financing Life Sciences Companies - What's Current and What's New, 3rd Annual International Bar Association (IBA) World Life Sciences Conference, Philadelphia, Pennsylvania (06.12.2015)
• Moderator, Innovative Ways to Fund Your Early Stage Company, MassBio 2015 Annual Meeting, Cambridge, MA (03.27.2015)
• Panelist, Financing Trends for Life Sciences and Healthcare Innovation, New England Healthcare Executive Meeting, Constant Contact, Waltham, MA (11.03.2014)
• Moderator, Private Financing Trends, 2014 CEO Conference, Boston Biotech Conferences, Boston, MA (06.05.2014)
• Moderator, Deal Structures, Boston CEO Conference, Boston, MA (06.12.2012)

Video Insights

Bill Whelan discusses what is driving financing trends in the life sciences.

Reported CasesRepresentative Matters:; Mergers & Acquisitions; Represented Allegro Diagnostics in its merger with Veracyte, Inc. (NASDAQ: VCYT); Represented Ember Corporation in its merger with Silicon Laboratories, Inc. (NASDAQ: SLAB); Represented Pluromed, Inc. in its merger with Sanofi; Represented Boston Biomedical, Inc. in its merger with Dainippon Sumitomo Pharma Co., Ltd.; Represented Caliper Life Sciences, Inc. (Nasdaq: CALP) in its merger with PerkinElmer, Inc. (NYSE: PKI); Represented Visigen Biotechnologies, Inc. in its merger with Invitrogen Corporation (currently known as Life Technologies, Inc. (Nasdaq: LIFE)); Represented V.I. Technologies, Inc. (Nasdaq: VITX) in its merger with Panacos Pharmaceuticals, Inc. (Nasdaq: PANC); Represented EPIX Pharmaceuticals, Inc. (Nasdaq: EPIX) in its merger with Predix Pharmaceuticals, Inc.; Represented Caliper Life Sciences, Inc. (Nasdaq: CALP) in its merger with Xenogen Corporation (Nasdaq: XGEN); Represented Focus Technologies Holding Company in its acquisition by Quest Diagnostics Incorporated (NYSE: DGX); Represented the MacGregror Group, Inc. in its acquisition by Investment Technology Group, Inc. (NYSE: ITG)

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Office Information

William T. Whelan

BostonMA 02111


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