Karl G. Dial

• Securities and Director & Officer Litigation: Represented over 100 officers and directors in securities class actions, derivative suits, SEC enforcement matters, and other claims.
• Energy and Mining Litigation: Handled numerous disputes involving electricity generation, oil and gas exploration and production, mining, renewable energy, pipelines, and other energy issues.
• Regulatory Investigations: Handled dozens of federal and state regulatory enforcement actions, including SEC investigations into alleged misstated financial statements and state agency investigations into alleged violations of rules governing certified public accountants.
• Internal Investigations: Conducted numerous internal investigations for Boards and Audit Committees involving allegations of improper accounting and breaches of fiduciary duty.
• Trade Secrets/Contract Litigation: Jury trials of trade secrets, contract and fraud claims with damages claimed as large as the nine figures.
• Banking Litigation: Defended multiple financial institutions involving alleged Ponzi schemes, trust litigation, and breach of duty claims.
• Health Care Class Actions: Defended major hospital system against multiple putative class actions alleging surprise billing for services.
• Caribbean Islands Litigation: Represented investor in ownership dispute over of two Caribbean islands involving claim of over $44 million.
• Explosion Litigation: Defended supplier of gas in MDL litigation with 2,500 claims for alleged wrongful death, personal injury, and economic losses from an explosion.
• Ponzi Scheme Litigation: Defended large accounting firm against Ponzi scheme and securities claims seeking US$7 billion in investor losses.°
• Securities Fraud Litigation: Obtained dismissal of class action securities claim (affirmed by the Fifth Circuit) seeking US$1.5 billion against the chief financial officers of one of the largest failed banks.°
• Accounting Litigation: Defended multiple audit firms against claims of alleged improper accounting related to tender offers, sales of subsidiaries, class actions by investors, and bankruptcy trustees, including multiple jury trials involving audits and accounting issues.
• International Merger Litigation: Defended against injunction claims, class actions, and derivative lawsuits seeking to interfere with US$30 billion merger. °
• Fiduciary Duty Litigation: Jury trial of shareholder derivative lawsuit involving claims for over US$20 million based on alleged breach of fiduciary duty and accounting fraud.°
• Securities Sale Litigation: Represented sellers of securities seeking payment of US$40 million for post-closing consideration based on post-sale financial results of the business.°

°The above representations were handled by Mr. Dial prior to his joining Greenberg Traurig, LLP.

• Board Certified in Civil Trial Law, Texas Board of Legal Specialization
• Former Certified Public Accountant, 1984–2025

• Listed, The Best Lawyers in America, Bet-the-Company Litigation, Securities Litigation, Commercial Litigation, Banking and Finance Litigation, Intellectual Property Litigation, 2006-2025
  • Selected, "Lawyer of the Year," Litigation - Banking and Finance, Dallas/Fort Worth, 2024
• Listed, Benchmark Litigation, Local Litigation Star—Texas: General Commercial, Securities, Intellectual Property, 2013-2025
• Listed, Chambers USA Guide, Litigation: Securities, 2014-2024
• Listed, Super Lawyers magazine, Texas Super Lawyers (Business Litigation), 2003-2004, 2006-2024
• Rated, AV Preeminent^® 5.0 out of 5.0 (30+ Years)

°AV^®, AV Preeminent^®, Martindale-Hubbell Distinguished^SM and Martindale-Hubbell Notable^SM are certification marks used under license in accordance with the Martindale-Hubbell^® certification procedures, standards and policies.

• Past President and Board Member, University of Texas Law Review Association
• Member, American Bar Association
• Life Fellow, Texas Bar Foundation and Dallas Bar Foundation