Luke Cadigan

Partner in Charge – Boston
Full contact info

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.

About Luke

Luke is head of business litigation for the east coast and partner in charge of the Boston office. He is an experienced trial attorney and concentrates his practice on securities enforcement matters, shareholder disputes and actions, complex commercial litigation, internal investigations, and regulatory compliance.

Luke is a former assistant director in the US Securities and Exchange Commission’s Enforcement Division, serving in the Boston regional office and in the SEC’s Foreign Corrupt Practices Act (FCPA) unit. He managed investigations conducted by staff attorneys and accountants, including matters related to accounting fraud, offering fraud, insider trading, whistleblower complaints, investment advisers and broker-dealers. Luke also oversaw investigations into potential FCPA violations and, while serving as a member of the agency’s Cross-Border Working Group, he supervised investigations into the accounting practices of Chinese and other non-US companies trading on US markets. Luke has been recognized by Chambers USA, with a client describing Luke as a “fantastic lawyer who is very familiar with the law and the SEC’s enforcement practices.”

Prior to becoming an assistant director, Luke spent 7+ years as SEC senior trial counsel, investigating and litigating dozens of high-profile matters. As lead counsel, he also successfully tried several complex matters in federal court and in the SEC’s administrative forum, including allegations of insider trading by a hedge fund employee, accounting fraud, insider trading by a director, a pay-to-play scheme by a former state senate majority leader, fraud by an investment adviser, and fraud by a broker-dealer (resulting in the largest penalty awarded in a SEC administrative proceeding at the time). He was a recipient of the Chairman’s Award for Excellence in 2002 and 2007, and the Enforcement Division Director’s Award in 2007 and 2008.

Luke served as law clerk for US District Court Judge Edward F. Harrington of the US District Court for the District of Massachusetts and as a special assistant district attorney in Middlesex County, Massachusetts.

Luke also has handled investigations, examinations and inquiries by numerous government entities, including the SEC, the US Department of Justice (DOJ), US attorney’s offices (USAO), attorneys general offices, the Financial Industry Regulatory Authority (FINRA) and the Massachusetts Securities Division.

Luke’s representative matters include:

Government investigations

  • Representing public biotechnology company investigated by SEC for alleged misrepresentations regarding its key drug product
  • Representing a private life sciences company and CEO in connection with a SEC investigation into disclosures regarding Food and Drug Administration (FDA) communications
  • Advising a manufacturer in SEC and DOJ investigations arising from a self-report of FCPA violations in China, resulting in a rare SEC non-prosecution agreement and a public DOJ declination
  • Representing private equity firm investigated by SEC for misrepresentations to investors
  • Represented a private software company investigated by the SEC and the DOJ for allegedly inflating revenue
  • Advising individuals at an investment adviser firm investigated by the SEC for off-platform communications
  • Representing a private ecommerce company investigated by the SEC and the DOJ for allegedly inflating revenue
  • Representing a public biotechnology company investigated by the SEC for alleged misrepresentations regarding FDA communications
  • Representing private retail company investigated by SEC for mispresentations regarding its equity plan
  • Representing major investment firm in investigation by SEC into trading activity in the municipal securities market
  • Representing an executive of a Fortune 100 global industrial company in a SEC investigation into alleged accounting fraud
  • Representing online broker in investigations by SEC and FINRA into alleged false disclosures and best execution violations
  • Advising numerous entities and individuals, including officers and directors, investigated for alleged insider trading by the SEC and/or the USAO
  • Representing dozens of entities in SEC enforcement investigations and litigation involving issues arising from initial coin offerings, cryptocurrencies, and distributed ledger technology
  • Advising investment advisers, broker-dealers and employees in various SEC, USAO and DOJ investigations into issues including fee disclosures, potential conflicts of interest, pay-to-play, and performance advertising
  • Representing various employees in SEC and DOJ investigations into alleged accounting violations
  • Advising various executives in SEC and DOJ investigations into possible FCPA violations in Africa and China
  • Representing bond counsel in a SEC investigation into its role in a municipal offering
  • Advising individuals and entities in criminal and civil investigations into possible violations of the False Claims Act and the Anti-Kickback Statute
  • Representing broker-dealers and employees in SEC and FINRA investigations and/or enforcement actions arising from alleged best execution violations
  • Advising numerous investment advisers and broker dealers in connection with SEC examinations

Internal investigations

  • Conducting investigation on behalf of an audit committee into revenue recognition issues raised by whistleblower and auditor just prior to release of financials
  • Conducting investigation on behalf of a special committee into revenue recognition issues raised by auditor and SEC just prior to release of finanacials
  • Investigating possible FCPA violations by an international engineering firm in South America and Asia
  • Conducting an investigation on behalf of a special committee into whistleblower allegations of channel stuffing and other improper accounting practices at a major pharmaceutical company
  • Investigating whistleblower allegations of securities and FDA violations at a public life sciences company
  • Conducting an investigation on behalf of an audit committee into alleged falsification of data at a public biotech company
  • Investigating whistleblower allegations of securities violations by the former CEO of a public life sciences company
  • Conducting an investigation into whistleblower allegations of FCPA violations at a public biotech company
  • Investigating alleged improper revenue recognition practices by a private software provider
  • Conducting an investigation on behalf of an audit committee into whistleblower allegations of channel stuffing at a global publishing company
  • Investigating import-export compliance at the Chinese facilities of a multinational biopharmaceutical company on behalf ofan audit committee
  • Conducting an investigation on behalf of a special committee into whistleblower allegations of material breaches of government contracts by a private life sciences company and allegations of improper conduct by its management
  • Investigating possible fraud and improper accounting practices at a national branded food company
  • Conducting an investigation into whistleblower allegations of misrepresentations to investors by a private tech company

Litigation

  • Serving as trial counsel for Uber in a case brought in federal court by 34 taxi medallion-owning corporations that alleged unfair competition and conspiracy and sought more than $400 million in damages at trial, resulting in a complete defense verdict for Uber on liability and damages
  • Representing the Market Basket supermarket chain and various committees of its board of directors in connection with lawsuits and/or various disputes involving shareholders, directors, officers and employees
  • Defending Wells Fargo Securities in a SEC enforcement action arising from its role as a placement agent in a municipal bond offering
  • Representing an electronic payment vendor as the plaintiff in a Delaware Court of Chancery action alleging fraud
  • Securing a voluntary dismissals of respective securities class actions against Flex Pharma, Verrica Pharmaceuticals, Innate Pharma SA, and Molecular Partners AG
  • Obtaining a complete dismissal of a securities class action against GENFIT in New York state court
  • Representing club management software vendor in multiple lawsuits against club franchise customer
  • Representing and advising multiple SaaS companies in disputes with customers
  • Defending Kik Interactive in a SEC enforcement action charging unregistered offering of securities arising from the sale of cryptocurrencies 
  • Successfully trying a Section 220 books and records demand in the Delaware Court of Chancery on behalf of Alexandria Venture Investments
  • Representing the government of Bermuda in a lawsuit alleging civil Racketeer Influenced and Corrupt Organizations (RICO) Act violations
  • Representing numerous entities in post-acquisition litigation
  • Representing entities responding to subpoenas seeking discovery for use in foreign tribunals pursuant to 28 US Code § 1782
  • Defending an investment adviser executive against fraud allegations
  • Representing a defendant in a SEC enforcement action alleging he was an unregistered broker-dealer
  • Representing individuals and entities in an investigation and enforcement action by the Massachusetts Securities Division into supposed misrepresentations and unregistered activities

Recent speaking engagements

  • Panelist, “Current Trends in FCPA and FCA Enforcement: Identifying Fraudulent Practices and Mitigating Risk,” FDLI Webinar, June 13, 2023
  • Moderator, "Digital Assets and Cryptocurrency: Regulation and Enforcement of Exchanges, Crypto Lending, DeFi, NFTs and Stablecoins,” Securities Enforcement Forum 2022, Washington, DC, November 15, 2022
  • Panelist, “Parallel Enforcement: SEC Authorities and How they can Impact FDA’s Civil and Criminal Enforcement,” Food and Drug Law Institute, Food and Drug Law Journal 2022 Symposium, November 4, 2022
  • Panelist, "Cybersecurity and Cryptocurrency Regulation Enforcement and Litigation,” Securities Enforcement Forum 2020, Washington, DC, October 28, 2020
  • Panelist, “A Map of the Minefield: White Collar Crime and Enforcement Concerns for Early-Stage Companies,” Boston Bar Association White Collar Conference, Boston, Massachusetts, April 22, 2019 
  • Panelist, "Cryptocurrencies and ICOs: Where Will Enforcement Strike Next?," Securities Enforcement Forum 2018, Washington, DC, November 8 , 2018 
  • Panelist, “Trends and Developments in Mutual Fund Litigation and Asset Management Enforcement,” American Bar Association Roundtable, August 2, 2018 
  • Panelist, "ICOs - What Are They and What Laws Apply To Them?," ABA Business Law Section Spring Meeting, Orlando, Florida, April 12, 2018
  • Panelist, "FCPA Trends and Developments," Securities Enforcement Forum 2017, Washington, DC, October 26, 2017
  • Panelist, "Defending SEC Enforcement Actions and Investigations," Biotechnology Industry Organization General Counsel Committee Meeting, Berkeley, CA, October 3, 2017
  • Panelist, "Anti-Corruption Enforcement and Strategies," Benchmark International Litigation Forum 2017, New York, NY, September 26, 2017
  • Panelist, "ACS Live - SEC Enforcement Panel," ACS Financial Accounting & Reporting Update 2017, Boston, MA, June 7, 2017

Selected publications

Media mentions

Education

Boston College Law School
JD, magna cum laude

Amherst College
BA, cum laude

Court admissions

US Court of Appeals for the First Circuit

US Court of Appeals for the Second Circuit

US District Court for the District of Massachusetts

Rankings & accolades

Chambers USA: Litigation: Securities – Massachusetts (2022 – 2023)

Best Lawyers – Leading Lawyer in Litigation Securities

Massachusetts Super Lawyer

Memberships & affiliations

American Bar Association

Boston Bar Association’s Executive Committee and Council