Luke Cadigan


As a former Assistant Director and Senior Trial Counsel in the SEC’s Enforcement Division, I have gained invaluable experience taking complex securities fraud matters to trial and an insider’s perspective on how to best address government investigations and other regulatory scrutiny.

Luke is head of business litigation for the East Coast and an experienced trial attorney. He concentrates his practice on securities enforcement matters, shareholder disputes and actions, complex commercial litigation, internal investigations, and regulatory compliance. 

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  • Singapore-based Grab’s Record SPAC Marks Southeast Asia’s Largest Ever US Equity Offering 

  • Gopuff Agrees to Acquire BevMo 

  • Defending Inovio in Securities Class Action 

  • Trial Victory in Unfair Competition Case for Uber 

  • Genfit Beats Section 11 Suit  

  • View all

A fantastic lawyer who is very familiar with the law and the SEC's enforcement practices. – Client quote in Chambers USA

  • Boston College Law School
    JD, magna cum laude

  • Amherst College
    BA, cum laude

Admissions & Credentials


District of Columbia


  • American Bar Association

  • Boston Bar Association Council

Rankings & Accolades

    Best Lawyers – Leading Lawyer in Litigation Securities (2019-2022)

    Chambers USA: Litigation: Securities (2022)

    Massachusetts Super Lawyer (2012 – 2021)