Bill Katz
Bill Katz
+1.214.969.1330

Overview

Bill Katz is a litigation and antitrust attorney in Holland & Knight's Dallas office. Mr. Katz is a first-chair trial lawyer who focuses his practice on resolving complex disputes, particularly those involving clients in the healthcare and energy industries. In addition to counseling clients on a variety of antitrust issues, he represents clients before federal and state trial and appellate courts, arbitration panels and administrative agencies, including the Federal Trade Commission (FTC) and the Antitrust Division of the U.S. Department of Justice (DOJ).

Mr. Katz also has experience in internal investigations, representation of audit committees and the design and implementation of compliance and training programs. Chambers USA directories have praised him for his ability to develop "effective strategies in complex disputes" and his "good reputation, which is well deserved," and describe him as "very knowledgeable" and an "A+ litigator who would be on anyone's list of lawyers if you had a problem."

Representative Experience

  • Representing several healthcare providers in litigation involving claims for alleged violations of Sections 1 and 2 of the Sherman Act, state antitrust violations, breach of contract and tortious interference
  • Representing several healthcare providers in connection with a lawsuit involving alleged monopolization, price fixing and anti-competitive mergers
  • Representing a hospital and physician group in a lawsuit involving claims of monopolization and attempted monopolization
  • Representing an international petroleum company in a lawsuit involving alleged Sherman Act violations and claims for breach of contract, misappropriation of trade secrets, fraud and business disparagement
  • Represented several opt-out plaintiffs in public and non-public price-fixing matters
  • Represented a hospital system and staffing agency in a lawsuit involving claims under the Sherman Act and the False Claims Act (FCA)
  • Represented a manufacturer in multiple class action lawsuits involving an alleged conspiracy to fix prices
  • Represented a manufacturer in a lawsuit involving claims of monopolization and attempted monopolization
  • Represented an insurance company in a lawsuit involving price-fixing allegations
  • Represented a manufacturer in an adjudicatory proceeding before the Federal Trade Commission (FTC) involving price-fixing allegations
  • Represented a group of physicians in an adjudicatory proceeding before the FTC involving price-fixing allegations
  • Represented an international offshore drilling company in a class action lawsuit alleging a conspiracy among drilling companies to fix the wages and benefits paid to their offshore workers
  • Represented several charitable organizations in a nationwide class action lawsuit alleging a conspiracy to fix the rates of return for charitable gift annuities
  • Counseled and advised clients regarding mergers, joint ventures, clinically integrated networks, pricing issues and other antitrust matters

  • Representing an international mining company’s affiliate in an American Arbitration Association (AAA) arbitration and related confirmation proceeding
  • Represented the general partner of a partnership in a lawsuit involving claims for breach of fiduciary duty and breach of contract
  • Representing an international energy company and its affiliate in an International Centre for Dispute Resolution (ICDR) arbitration involving claims for breach of contract, fraud and statutory violations
  • Represented a borrower in an AAA arbitration involving claims for breach of a loan agreement
  • Represented a bank acting as the independent administrator of an estate in an ad hoc arbitration involving the enforceability of a premarital agreement
  • Represented an international energy company and its affiliates in an ICDR arbitration involving claims for breach of contract and fraud
  • Represented an international energy company's affiliate in an AAA arbitration involving claims for breach of contract
  • Represented a healthcare provider in an AAA arbitration involving claims for breach of contract related to a stock purchase agreement
  • Represented a large transportation company in a proceeding to vacate an arbitration award
  • Represented an international energy company in an International Chamber of Commerce (ICC) arbitration involving claims for breach of contract and declaratory relief
  • Represented an international energy company in an ICDR arbitration involving claims for breach of contract and declaratory relief
  • Represented two international energy companies in an ICDR arbitration involving claims for declaratory relief regarding the interpretation of an oil and gas contract
  • Represented an international energy company's affiliates in connection with the confirmation of an ICDR arbitration award
  • Represented a luxury retailer and its board of an ICDR arbitration award
  • Represented an international energy company's affiliates in an ICDR arbitration involving claims for breach of contract and other relief
  • Represented an independent energy company in a AAA arbitration involving the breach of a purchase and sale agreement for certain oil and gas assets
  • Represented a large electronics manufacturing services company in a AAA arbitration involving claims for breach of contract and unjust enrichment

  • Representing a healthcare provider in a lawsuit involving claims under the False Claims Act (FCA)
  • Representing an international mining company's affiliate in a lawsuit involving claims for breach of contract and deceptive trade practices
  • Representing a trustee in connection with potential litigation involving a trust and trust administration matters
  • Representing a publicly traded real estate investment trust (REIT) in state tax litigation
  • Representing an individual and related entity in litigation involving claims for breach of fiduciary duty and breach of contract arising from a partnership dispute
  • Represented an international energy company and its affiliates in a lawsuit involving claims for fraud, breach of fiduciary duty, breach of contract and statutory violations
  • Represented a hospital system in a lawsuit involving alleged contractual breaches and violations of the Texas Deceptive Trade Practices Act (DTPA)
  • Represented several hospitals in class action lawsuits involving alleged violations of the DTPA
  • Represented an international energy company in federal income tax litigation
  • Represented a publicly traded REIT in a lawsuit involving claims for breach of contract, tortious interference and conspiracy
  • Represented an oilfield services company in a lawsuit involving claims for breach of contract, fraud and conspiracy
  • Represented a business trust in a class action lawsuit
  • Represented a medical device manufacturer in a lawsuit involving claims under the FCA
  • Represented a hospital in a class action lawsuit alleging statutory billing violations
  • Represented an international energy company's affiliate in a class action lawsuit involving the alleged failure to pay royalties owed on flared natural gas
  • Represented a hospital in a lawsuit involving claims under the FCA
  • Represented an international energy company's affiliate in a lawsuit involving claims under the FCA
  • Represented an international energy company's affiliates in a lawsuit involving claims for breach of contract and other relief
  • Represented an international energy company's affiliate in a lawsuit involving claims for indemnification and other equitable relief
  • Represented an international energy company in a lawsuit involving claims for breach of contract
  • Represented a master limited partnership in a lawsuit involving claims for breach of contract
  • Represented an international energy company in a lawsuit involving claims for breach of fiduciary duty, fraud and promissory estoppel
  • Represented a major transportation company in a class action lawsuit involving claims for negligence, breach of contract and breach of fiduciary duty arising from the tax treatment of a special dividend
  • Represented a publicly traded REIT in a lawsuit involving claims for tortious interference, misappropriation of trade secrets and conspiracy
  • Represented a publicly traded REIT in a lawsuit involving claims for trespass
  • Represented several former officers and directors of a fiber-optic manufacturer in a jury trial involving the defense of a claim under the Computer Fraud and Abuse Act (CFAA) and the prosecution of a defamation counterclaim
  • Represented the former president of an international franchisor in a jury trial involving claims for fraud and breach of contract
  • Represented clients challenging the issuance and scope of several IRS summonses

  • Representing a limited partner and officer in a lawsuit involving claims for breach of fiduciary duty and breach of contract
  • Represented the general partner of a partnership in a lawsuit involving claims for breach of fiduciary duty and breach of contract
  • Represented a shareholder in a lawsuit to enjoin a proposed merger in the financial services industry
  • Represented a technology company and several of its officers and directors in a class action lawsuit involving alleged violations of federal securities laws
  • Represented a corporation and two shareholders in a jury trial involving the prosecution of claims against a publicly traded medical device manufacturer and its officers and directors for securities fraud, breach of fiduciary duty and breach of contract
  • Represented a technology company and its officers and directors in a lawsuit involving claims for breach of fiduciary duty, fraud, misrepresentation, tortious interference and breach of contract
  • Represented an energy company and its board of directors in a class action lawsuit involving claims for breach of fiduciary duty in connection with a merger and acquisition
  • Represented a luxury retailer and its board of directors in a class action lawsuit involving claims for breach of fiduciary duty in connection with a merger and acquisition
  • Represented the audit committee of a large technology outsourcing company in connection with internal investigation of issues raised by the Sarbanes-Oxley Act of 2002

Credentials

Education
  • Georgetown University Law Center, J.D.
  • Georgetown University, B.S., magna cum laude
Bar Admissions/Licenses
  • California
  • District of Columbia
  • New York
  • Texas
Court Admissions
  • U.S. Court of Appeals for the Eighth Circuit
  • U.S. Court of Appeals for the Fifth Circuit
  • U.S. Court of Appeals for the First Circuit
  • U.S. Court of Appeals for the Second Circuit
  • U.S. District Court for the Central District of California
  • U.S. District Court for the District of Columbia
  • U.S. District Court for the Eastern District of California
  • U.S. District Court for the Eastern District of New York
  • U.S. District Court for the Eastern District of Texas
  • U.S. District Court for the Northern District of California
  • U.S. District Court for the Northern District of New York
  • U.S. District Court for the Northern District of Oklahoma
  • U.S. District Court for the Northern District of Texas
  • U.S. District Court for the Southern District of California
  • U.S. District Court for the Southern District of New York
  • U.S. District Court for the Southern District of Texas
  • U.S. District Court for the Western District of Michigan
  • U.S. District Court for the Western District of Texas
  • U.S. Supreme Court
Memberships
  • American Bar Association, Antitrust Section, Trial Practice Committee, Co-Chair, 2022-Present, 2016-2019; Vice Chair, 2019-2022, 2014-2016
  • American Bar Association, Antitrust Section, Transportation and Energy Committee, Vice Chair, 2011-2014
  • American Bar Association, Antitrust Section, Insurance and Financial Services Committee, Co-Chair, 2009-2011
  • American Bar Association, Antitrust Section, Insurance Industry Committee, Chair, 2007-2009; Vice Chair, 2003-2007
  • State Bar of Texas, Antitrust and Business Litigation Section, Chair, 2008-2009; Chair-Elect, 2007-2008; Secretary-Treasurer, 2006-2007; Council Member, 2001-2009
  • Dallas Bar Association, Antitrust and Trade Regulation Section, Chair, 2008; Vice Chair, 2007
  • Law360, International Arbitration Editorial Advisory Board, 2016-2017
  • Texas Business Litigation Journal, Contributing Editor, 2000-2016
  • State Bar of California, Antitrust and Unfair Competition Law Section; Litigation Section
  • District of Columbia Bar, Antitrust Section
  • New York State Bar Association, Antitrust Law Section
  • American Health Lawyers Association
  • Georgetown University Alumni Admissions Program, Interviewer
  • American Bar Foundation, Fellow
  • Texas Bar Foundation, Fellow
  • Dallas Bar Foundation, Fellow
Honors & Awards
  • GCR 100, Global Competition Review, 2021, 2024, 2025
  • Chambers USA – America's Leading Lawyers for Business guide, Antitrust, 2009-2024
  • The Best Lawyers in America guide, Antitrust Law, Commercial Litigation, Litigation - Antitrust, Litigation - Securities, 2009-2025
  • Leading Litigators in America, Lawdragon 500, 2023-2025
  • The Best Lawyers in America guide, Dallas Litigation - Antitrust Lawyer of the Year, 2015, 2021
  • Best Lawyers in Dallas, D Magazine, 2021-2024
  • Texas Super Lawyers magazine, 2008-2024
  • Influencer in Retail Real Estate - Holland & Knight's Retail Development and Leasing Team, GlobeSt. Real Estate Forum, 2023

Publications

Speaking Engagements

News