Thad Behrens

Thad Behrens


Thad is US Co-Head of Commercial Litigation and Managing Partner of Dallas.

Thad is a seasoned trial lawyer to whom clients turn for their most challenging litigation matters. He focuses on the representation of companies, boards of directors, executives and underwriters in high-stakes commercial disputes, including securities class actions, shareholder derivative cases, M&A litigation, tender offer litigation, proxy contest lawsuits, bankruptcy litigation and internal investigations.

He also has extensive experience in defending class actions involving consumer protection, environmental issues, healthcare and telecommunications.

He has won major victories for some of the most recognizable companies in the U.S. For example, Thad obtained dismissals for two matters on behalf of Tenet Healthcare, a securities case and the other a medical care case. He also won a putative environmental class action lawsuit for AT&T by first obtaining denial of class certification and then securing voluntary dismissal of the lawsuit. Thad led the successful defense of the National Football League (NFL) in a consumer class action brought by ticketholders to Super Bowl XLV—first obtaining a denial of class certification and then winning the subsequent federal jury trial against the remaining individual plaintiffs. He also obtained summary judgment for the NFL in two different lawsuits brought in Texas state courts by a fantasy football convention company.

Thad has also led BP Products North America, Inc. to victory by defeating class certification and securing a voluntary dismissal in a $10 billion environmental litigation brought by property owners who claimed to have been harmed by alleged air emissions from one of the company’s oil refineries.


Representative matters

Securities and Shareholder Litigation

Obtained complete defense verdict denying all claims in arbitration brought by a bankruptcy litigation trustee alleging claims of breach of fiduciary duty against former public company CFO.

Defending the directors and officers of BlockFi, Inc., a cryptocurrency lender, in a putative securities class action involving BlockFi interest accountholders.

Defending oil and gas company in connection with an SEC investigation related to a financial restatement. 

Leadership Positions And Professional Affiliations

  • Master of the Bench, Patrick E. Higginbotham Inn of Court
  • Former President, Federal Bar Association, Dallas Chapter
  • Dallas Regional Chamber’s Leadership Dallas Program Alum
Thad is extremely knowledgeable, process-oriented, fair and personable. He is able to get to the root of the matter effectively and work toward a resolution.
Chambers USA, 2023
He is both client-friendly and effective in any forum. Thad is one of these open-minded, easy-to-engage-with lawyers who will consider and bake in good ideas from clients.
Chambers USA, 2023


  • Recognized in Securities Litigation, Chambers USA, 2018-2023
  • Litigation Star in Commercial Litigation and Securities Litigation, Benchmark Litigation, 2023
  • “Top Ten Most Influential Securities Litigation Lawyers in Texas”, Business Today, 2023
  • Recognized in Securities Litigation, The Best Lawyers in America, 2019-2022
  • “Texas Super Lawyer”, Thomson Reuters, 2013-2021
  • “Best Lawyer in Dallas,” D Magazine, 2016-2023
  • “Litigator of the Week”, Texas Lawyer, 2018



California, 1998

Texas, 2001 


United States Court of Appeals for the Fifth Circuit

United States District Court, Northern District of Texas

United States District Court, Southern District of Texas

United States District Court, Western District of Texas

United States District Court, Eastern District of Texas

United States District Court, Central District of California

United States District Court, Eastern District of California

United States District Court, District of Colorado


B.A., Sociology, Bucknell University, 1990

J.D., U of the Pacific, McGeorge School, 1997

– Valedictorian Award

– Outstanding Graduate Award

– Order of the Coif

– Chief Articles Editor, Pacific Law Journal (now McGeorge Law Review)

A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.