Joseph O. Larkin

Joseph O. Larkin

Partner, Litigation; Corporate Restructuring
Joe Larkin represents a broad range of clients in high-profile, bet-the-company disputes involving mergers and acquisitions, commercial contracts, antitrust matters, securities class actions, corporate control challenges and troubled-company litigation in state and federal courts throughout the country. He also frequently advises clients on Delaware law governing corporations and alternative entities.


Mr. Larkin has been repeatedly named to The Best Lawyers in America for Corporate Law, and has been repeatedly recognized by The American Lawyer and the Financial Times for litigation victories in the Delaware Court of Chancery. He also has been recognized by Turnarounds & Workouts magazine as one of its Outstanding Young Restructuring Lawyers and by Chambers USA for Bankruptcy/Restructuring, in addition to being named as a Litigator of the Week in September 2020 by The American Lawyer for a victory in the Delaware Court of Chancery.

Throughout his career, Mr. Larkin has represented companies and boards in litigation arising from some of the largest transactions in history, and he has been at the forefront of corporate innovation. Mr. Larkin was one of the lead litigators that represented MacAndrews & Forbes in the Delaware Supreme Court’s seminal decision in Kahn v. M&F Worldwide Corp. (MFW), in which the court held for the first time that the deferential business judgment standard of review applied to a controller-led merger. In recent years, Mr. Larkin has successfully tried cases and arbitrations to judgment for Sabre Corporation, CommonWealth REIT, Service Properties Trust, TravelCenters of America LLC and the stockholders of EPCO Carbon Dioxide Products, Inc. In October 2021, Mr. Larkin successfully defeated a motion for preliminary injunction on behalf of Sabre Corporation after a week-long trial in Texas state court, and in April 2020, he was one of the lead litigators for Sabre Corporation in its trial victory in Delaware federal court against the Department of Justice’s effort to enjoin Sabre’s proposed acquisition of FareLogix, which was dubbed by one major media outlet as a “stunning court victory in the U.S.”

Some of Mr. Larkin’s other recent corporate litigation matters include:

  • the Special Litigation Committee of Clovis Oncology Inc. in an 18-month internal investigation and successful resolution of high-profile Caremark claims (Delaware Court of Chancery);
  • Red Lion Hotels and its board of directors in defeating breach of fiduciary duty claims arising from its merger with Sonesta (Washington state court);
  • Luxor Capital and certain of its principals in multijurisdictional litigation arising from its investment in RCAP (Delaware Court of Chancery and New York State Supreme Court);
  • Bottomline Corporation and its board of directors in litigation arising from its merger with Thoma Bravo (Delaware Court of Chancery and various federal district courts);
  • GCI Liberty, Inc. and certain of its directors and officers in litigation arising from GCI’s multibillion-dollar merger with Liberty Broadband, Inc. (Delaware Court of Chancery);
  • Ionis Pharmaceuticals, Inc. in the successful resolution of claims arising from its merger with its subsidiary Akcea Therapeutics, Inc. (Delaware Court of Chancery);
  • Stemline Therapeutics, Inc. in litigation arising from its acquisition by Menarini Group (New York and Delaware federal court);
  • Melinta Pharmaceuticals, Inc. in shareholder litigation and its subsequent comprehensive financial restructuring (Delaware Court of Chancery and Delaware Bankruptcy Court);
  • Array BioPharma in shareholder litigation arising from its $11.4 billion acquisition by Pfizer (Delaware Court of Chancery);
  • Alder Biopharmaceuticals, Inc. in its sale to Lundbeck for up to $1.95 billion (New York, California and Delaware federal court);
  • Merrimack Pharmaceuticals, Inc. in litigation against its convertible noteholders arising from Merrimack’s sale of certain assets to Ipsen S.A (Delaware Court of Chancery);
  • the defense of a significant shareholder in the successful resolution of litigation arising from Lions Gate’s acquisition of STARZ, Inc. (Delaware Court of Chancery and California Superior Court); and
  • the special committee of Wesco Financial Corporation in its merger with its controlling shareholder Berkshire Hathaway, Inc. (Delaware Court of Chancery).

In the bankruptcy and troubled-company arena, Mr. Larkin has substantial experience representing debtors, committees and creditors in litigation related to bankruptcies. He recently served as lead trial counsel to SeeCubic, Inc. in securing the dismissal of Stream TV Networks Inc.’s Chapter 11 filing (D. Del. Bankruptcy); the official equity committee of VIVUS, Inc. in obtaining significantly greater value for equity holders than initially contemplated under the debtor’s initial plan of reorganization (D. Del. Bankruptcy); and a stalking horse bidder in the successful defense of “bid-rigging” allegations arising from bankruptcy auction (S.D.N.Y. Bankruptcy). His recent Debtor representations include:

  • Endo International PLC and certain of its affiliates in their Chapter 11 cases (S.D.N.Y. Bankruptcy);
  • Armstrong Flooring and certain of its affiliates in their Chapter 11 cases ((D. Del. Bankruptcy);
  • Melinta Therapeutics in its comprehensive financial restructuring in Chapter 11 (D. Del. Bankruptcy); and
  • Stearns Holding and certain of its affiliates in their Chapter 11 reorganization (S.D.N.Y. Bankruptcy).

Mr. Larkin has published numerous articles on Delaware law issues and bankruptcy issues. He was appointed twice by the Delaware Supreme Court to serve on the Delaware Board of Bar Examiners.



  • J.D., Villanova University School of Law (magna cum laude; Order of the Coif; Associate Editor, Villanova Law Review)
  • B.A., University of Richmond (magna cum laude)


  • Delaware
  • Pennsylvania


  • Law Clerk, Hon. R. Barclay Surrick, U.S. District Court for the Eastern District of Pennsylvania

Joseph O. Larkin

Partner, Litigation; Corporate Restructuring