Samuel B. Isaacson

  • 330 North Wabash Avenue, Suite 2800
  • Chicago, IL 60611
  • USA
Profile Experience

Samuel Isaacson is the former Local Co-Chair of the Litigation & Trial Department. His practice focuses on complex commercial litigation, including representing corporations and their directors and officers, and audit firms, in class actions, derivative litigation, regulatory investigations, and corporate governance disputes.

Mr. Isaacson represents issuers and their directors and officers and audit firms, in matters involving shareholder litigation and Securities and Exchange Commission (SEC) enforcement actions. He has successfully represented his clients against shareholder class actions brought under the securities laws, and against derivative actions for breach of fiduciary duty. Mr. Isaacson also represents these same clients in investigations brought by the SEC, United States Attorneys' offices, and self-regulatory organizations.

Separately, Mr. Isaacson represents a wide range of publicly traded and private companies in the defense of consumer class actions filed throughout the United States. In this regard, he has represented a host of clients in the insurance, financial, healthcare, and transportation industries.

Mr. Isaacson’s practice involves both trial and appellate advocacy in the state and federal courts, including the Illinois Supreme Court and federal courts of appeal, and arbitrations. He has also helped numerous clients achieve resolution of their disputes through mediation and other forms of alternative dispute resolution.

Mr. Isaacson has been recognized as a leading lawyer by Chambers USA, The Legal 500, Illinois Super Lawyers, Who's Who in American Law, and Best Lawyers in America.

Mr. Isaacson’s experience includes the following matters:

  • Representing silicon metal producer and its board of directors in shareholder class actions arising from cross-border US$3 billion merger (Del. Chancery Ct. 2015)
  • Representing Orbitz Worldwide, LLC and its board of directors in shareholder class actions arising from US$1.6 billion merger with Expedia (Del. Chancery Ct. 2015)
  • Representing top-tier accounting firm in SEC investigation into resignation as auditor of public company
  • Represented general partner of fund manager accused of defaming director of public company for misusing Rule 10b5-1 for insider trading (Cook County, Illinois 2015)
  • Represented a leading financial institution in class action to enjoin shareholder vote on proposed merger based on proxy disclosures, sales process, and adequacy of merger consideration*
  • Represented a public holding company and its board of directors in shareholder class action and derivative litigation alleging ultra vires acts under stock incentive plans
  • Represented a public company and incumbent board of directors in proxy contest to unseat the board based on alleged breaches of fiduciary duties
  • Won a dismissal with prejudice of shareholder class actions brought against an unlisted REIT, its sponsor and board, for allegedly inflating the reported value of the REIT’s shares*
  • Represented a leading REIT and its directors and officers in securities class actions and derivative claims challenging an internalization of affiliated property managers and an adviser*
  • Represented the Chief Financial Officer of a leading information security company in shareholder class actions and regulatory investigations alleging improper options backdating and accounting irregularities*
  • Represented the Chief Financial Officer of a publicly traded company in shareholder class actions, derivative litigation, and SEC and Department of Justice (DOJ) investigations involving alleged violations of the securities laws with respect to alleged financial irregularities*
  • Represented the country's largest packaged ice manufacturer and its CEO and CFO in securities class actions, derivative lawsuits and SEC and DOJ investigations, alleging that the company defrauded investors by attributing its success to its business plan while concealing an allegedly unlawful agreement with competitors to allocate markets and fix prices*
  • Represented an incumbent board of directors in proxy contest class actions and derivative claims challenging the accuracy of executive compensation and other disclosures*
  • Represented the world's leading airlines in a lawsuit to determine whether the airlines or the United States government, acting through the Federal Emergency Management Agency, is liable for costs of natural disasters at O'Hare International Airport and Midway Airport*
  • Represented leading airlines in litigation against the City of Chicago, the owner of O’Hare International Airport, in a multi-billion dollar dispute over O’Hare expansion*
  • Represented the rental car industry against the City of Chicago in a billion-dollar dispute concerning O’Hare rental car concessions and airport capital improvements*
  • Represented financial institutions in consumer class actions in which borrowers alleged that the financial institutions deceptively and fraudulently calculated interest under their commercial loans based on the 365/360 method*
  • Represented a leading health care insurer in consumer class action involving more than 100,000 insureds claiming wrongful conversion of their insurance plans to inferior plans*
  • Represented one of the country's largest publicly traded shippers and transport companies in putative nationwide consumer class action alleging deceptive and unfair trade practices*
  • Represented a publicly traded finance company in more than 30 lawsuits, including four class actions in multi-district litigation, while using a combination of the removal statutes, multi-district litigation procedures, bankruptcy law and the All-Writs Act to fashion an advantageous settlement that disposed of substantially all the litigation*
  • Argued and won in the Illinois Supreme Court dismissal of a lawsuit against a law firm sued for legal malpractice*

*Matter completed prior to joining Latham & Watkins

Thought Leadership 
  • "Supreme Court's Haliburton Decision Opens New Line of Defense," Latham & Watkins Client Alert
  • "Third Point LLC v. Ruprecht – Activism Confronts the Rights Plan," Latham & Watkins Client Alert
Speaking Engagements
  • “Litigation Risks for the Corporate Secretary,” Society of Corporate Secretaries & Governance Professionals, Colorado Springs, Colorado (June 2016)
  • "Hot Topics in Securities and Delaware Law," Chicago Bar Association (May 2016) 
  • "Annual Securities Litigation & Enforcement 2015 Update," Sandpiper Partners, Chicago, Illinois (April 2015)
  • "Securities Fraud Actions in the Wake of Halliburton II: A New Line of Defense," Chicago Bar Association (March 2015)
  • "PricewaterhouseCoopers Securities Litigation & Enforcement Update," Chicago, Illinois (April 2013)
  • "PricewaterhouseCoopers 2011 Securities Litigation Study," Chicago, Illinois (April 2012)
  • "Litigators Advice: What All Transactional Attorneys Need to Know," Chicago Bar Association (March 2012)
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