LAWYER PROFILE
Michael Bongiorno

Michael Bongiorno

USA 2026

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About

Provided by WilmerHale

USA

Practice Areas

Michael Bongiorno co-chairs the firm’s securities litigation and enforcement practice. He has served as first-chair lead defense counsel and argued motions to dismiss in over fifty securities class action and derivative suits across the country. His clients have achieved dismissal in the vast majority of such matters. He is an experienced appellate advocate, having successfully argued for the affirmance of the dismissal over a dozen securities cases. His successful defense in such cases spans a variety of industries and jurisdictions, and he is a recognized leader in securities litigation and enforcement matters, including in matters against biotech, life science, medical device, and medical product companies, and has handled cases in many other industries and areas as well, including transportation, energy, construction, education, high tech, and retail.

His representations as lead defense counsel in securities class actions include the dismissal of cases against companies such as Biogen, Inc., Norfolk Southern Corporation, Seanergy Maritime Holdings Corp., Verve Therapeutics, Inc., Karyopharm Therapeutics Inc., PricewaterhouseCoopers AG, Iterum Therapeutics PLC, Renewable Energy Group, Inc., Synacor, Inc., Top Ships, Inc., Ocular Therapeutix, Inc., Assertio, Inc., Jos. A. Bank Clothiers, Inc., Invivyd, Inc., Glencore PLC, Golar LNG, Limited, Electronics for Imaging, Inc., Solid Biosciences, Inc., Argos Therapeutics, Inc., 1Globe Capital, LLC, Tetraphase Pharmaceuticals, Inc., LogicBio Therapeutics, Inc., Voyager Therapeutics, Inc., Apollo Education Group, Inc., Nabriva Therapeutics, PLC, ConforMIS, Inc., Britannia Bulk Holdings Inc., Optionable, Inc., DryShips Inc., InVivo Therapeutics Holdings Corp., AVEO Pharmaceuticals, Inc., VeraSun Energy Corp., Technical Olympic, S.A., EDAP TMS, S.A., Medtronic, Inc., AtheroGenics, Inc. and many others.

Mr. Bongiorno also has extensive experience leading internal investigations and securities enforcement matters, including matters before the Securities and Exchange Commission, the Department of Justice, various state securities regulators and FINRA. He regularly advises boards of directors and board committees with regard to disclosures, corporate governance issues, and matters related to litigation, enforcement, derivative and document demands, and crisis management.

Mr. Bongiorno has substantial trial experience in federal and state courts in various contexts. Trial successes include the successful defense of a company and its officers against fraud and other related claims in Massachusetts Superior Court (affirmed on appeal), the successful defense of a finance and investment company in Federal District Court in Boston against claims of breaches of fiduciary duty brought by a closely held corporation, and a five-week trial in the US Bankruptcy Court for the Southern District of New York regarding corporate governance and fiduciary duty claims (resulting in an extraordinarily favorable settlement for his clients). He has tried more than 20 civil and criminal matters in his career in various tribunals, including federal and state court jury and bench trials, as well as AAA and FINRA arbitrations.

Personal

JD, cum laude, Harvard Law School, 1991; AB, summa cum laude, Dartmouth College, 1988

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Litigation: Securities - New York

Band 2
Band 2

Individual Editorial
Michael Bongiorno is held in high regard for his handling of complex securities class actions and derivative suits, and often acts for corporate issuers in the life sciences field.

Strengths

Provided by Chambers

  • Michael provides excellent, practical advice that takes into account all of the facts and issues. He is also incredibly knowledgeable about the market and able to expertly guide us.

    Litigation: SecuritiesChambers Guide to the USA
  • Michael is a phenomenal resource and adviser. He gets a 10/10 in all categories. He has a unique combination of decades of experience, being both smart and street smart, and having a lot of presence.

    Litigation: SecuritiesChambers Guide to the USA
  • Michael has a deep understanding of federal securities laws and is very pragmatic and strategic.

    Litigation: SecuritiesChambers Guide to the USA

Ranked Individuals at WilmerHale (135)

California

California: San Francisco, Silicon Valley & Surrou

Colorado

District of Columbia

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