Shari Ross Lahlou, Partner Washington, D.C.
Phone: +1 202.624.2679
1001 Pennsylvania Avenue NW
Washington, DC 20004-2595

Shari Ross Lahlou is co-chair of the firm's Antitrust Group, a member of the Litigation Group, and resident in the Washington, D.C. office. Her practice focuses primarily on antitrust and other complex litigation, including class actions and multidistrict proceedings. She has successfully litigated cases at the trial and appellate levels in several federal and state courts nationwide, and has participated in a number of bench and jury trials, including as first chair. She has defended several clients in antitrust cartel cases, as well as cases alleging monopolization, tying, exclusive dealing, and other anticompetitive conduct. In addition, Shari has prosecuted and defended patent infringement claims and claims related to major commercial disputes.

Shari was named Global Competition Review's 2018 "Litigator of the Year," and in 2016 she was recognized as a National Law Journal M&A-Antitrust Trailblazer.

Representative Matters

  • In re Titanium Dioxide Antitrust Litigation: Currently representing DuPont in defense of Sherman Act Section 1 class action litigation alleging conspiracy to fix the price of titanium dioxide.
  • In re Rail Freight Fuel Surcharge Antitrust Litigation: Currently representing CSX Transportation, Inc. in defense of Sherman Act Section 1 multidistrict class action litigation alleging conspiracy to fix fuel surcharge prices.
  • Suture Express v. Cardinal & Owens & Minor: Currently representing major distributor of medical & surgical supplies in litigation alleging tying and exclusive dealing. 
  • U.S. v. AT&T & T-Mobile: Represented AT&T in its bid to purchase T-Mobile.
  • In re:  Apple/ATTM Antitrust Litigation: Represented AT&T in litigation over exclusive service provider relationship for iPhones.
  • NewCal v. IKON: Represented major copier company in a case alleging violations of Sherman Act Section 2 using an aftermarket theory, and RICO.
  • DuPont v. Kolon: RepresentedDuPont in its prosecution of trade secrets claims and its defense of a Sherman Act Section 2 counterclaim.


Admitted to practice: District of Columbia, Maryland

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Firm News & Announcements

Jun.15.2018 Federal Judge Clears Way for AT&T-Time Warner Merger
Apr.11.2018 Crowell & Moring Antitrust Co-Chair Shari Ross Lahlou Named Global Competition Review's 2018 "Litigator of the Year"
Oct.27.2017 LITIGATION NOTE: Crowell & Moring Wins Denial of Class Certification
Oct.06.2017 LITIGATION NOTE: DuPont Prevails in Antitrust Price-Fixing Lawsuit
Mar.14.2017 Litigation Note: Crowell & Moring Wins Appellate Victory Affirming Summary Judgment on Tying and Exclusive Dealing Case
Sep.28.2016 Crowell & Moring Partner Shari Ross Lahlou Named a National Law Journal Antitrust/M&A Trailblazer
Mar.08.2016 Litigation Note: Crowell & Moring Wins Tying and Exclusive Dealing Case on Summary Judgment
Jan.28.2016 Litigation Note: DuPont Wins Summary Judgment in Rare Feat
Jan.22.2015 Crowell & Moring's Antitrust Group Featured in Global Competition Review's 15th Edition "GCR 100"
Jan.13.2015 Crowell & Moring Releases Third Annual Litigation Forecast Report and Inaugural Regulatory Forecast
Apr.08.2014 Crowell & Moring Named Finalist in Global Competition Review's Fourth Annual "GCR Awards"
May.01.2009 Two Crowell & Moring Antitrust Lawyers Recognized In Global Competition Review’s "Women In Antitrust" Special Report