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Antitrust Experience
Chul focuses on antitrust litigation, mergers, and counseling. He defends clients in class actions, competitor lawsuits, and complex multi-district litigations across the U.S., and counsels companies in investigations before the FTC, DOJ, and state attorneys general.
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FTC Veteran
Before joining the firm, Chul served as the assistant director of the Mergers IV Division at the Federal Trade Commission.
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A Leading Antitrust Practitioner
Chul was named among New York's top antitrust attorneys in the 2014-2026 editions of Chambers USA: America's Leading Lawyers for Business.
Chul Pak is a partner in Wilson Sonsini Goodrich & Rosati's antitrust practice, where he focuses on antitrust litigation, mergers, and counseling. Chul defends clients in class actions, competitor lawsuits, and complex multi-district litigations across the United States. His litigation practice includes the representation of manufacturers, services companies, and technology firms. Chul also counsels companies in mergers and non-merger investigations before the Federal Trade Commission, the Department of Justice, and numerous state attorneys general.
Recognized consistently by Chambers USA: America's Leading Lawyers for Business for his antitrust practice in New York, sources describe Chul as “thoughtful and analytical” with an “easy demeanor about him that puts the court at ease even in high-tension and high stress situations.” Clients also remark that he “knows how to read the room and has a great ability to draw the court in.”
Prior to joining the firm, Chul served as the assistant director of the Mergers IV Division at the Federal Trade Commission. In that role, Chul supervised a 25-attorney team responsible for investigating mergers and acquisitions across a wide spectrum of industries, including consumer goods (food and beverages), retail stores (supermarkets, department stores, and other retail venues), cable and related media entertainment, and hospitals. Chul also represented the FTC in numerous high-profile trials in federal court and the FTC's internal administrative adjudication tribunal.
Chul Pak is a partner in Wilson Sonsini Goodrich & Rosati's antitrust practice, where he focuses on antitrust litigation, mergers, and counseling. Chul defends clients in class actions, competitor lawsuits, and complex multi-district litigations across the United States. His litigation practice includes the representation of manufacturers, services companies, and technology firms. Chul also counsels companies in mergers and non-merger investigations before the Federal Trade Commission, the Department of Justice, and numerous state attorneys general.
Recognized consistently by Chambers USA: America's Leading Lawyers for Business for his antitrust practice in New York, sources describe Chul as “thoughtful and analytical” with an “easy demeanor about him that puts the court at ease even in high-tension and high stress situations.” Clients also remark that he “knows how to read the room and has a great ability to draw the court in.”
Prior to joining the firm, Chul served as the assistant director of the Mergers IV Division at the Federal Trade Commission. In that role, Chul supervised a 25-attorney team responsible for investigating mergers and acquisitions across a wide spectrum of industries, including consumer goods (food and beverages), retail stores (supermarkets, department stores, and other retail venues), cable and related media entertainment, and hospitals. Chul also represented the FTC in numerous high-profile trials in federal court and the FTC's internal administrative adjudication tribunal.
- J.D., New York University School of Law
- B.A., Swarthmore College
- Member, Board of Directors, Korean American Community Foundation
- Member, Board of Governors, Korean American Lawyers Association of Greater New York
- Recognized in the 2025 edition of GCR/Lexology Index's Competition guide
- Selected for inclusion in the 2021 and 2023-2024 editions of GCR/Who’s Who Legal: Competition and named a 2020 “Global Leader” by the publication
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Named among New York's top antitrust attorneys in the 2014-2026 editions of Chambers USA: America's Leading Lawyers for Business
- Named to Lawdragon's 2025-2026 "500 Leading Global Antitrust & Competition Lawyers" guide
- Selected for inclusion in the 2024-2026 editions of Lawdragon's "500 Leading Litigators in America"
- Winner of Global Competition Review's 2018 "Litigation Matter of the Year" for representing Wilson Sonsini client Amphastar Pharmaceuticals, Inc. in antitrust litigation before the U.S. Court of Appeals for the First Circuit
- State Bar of New York
- J.D., New York University School of Law
- B.A., Swarthmore College
- Member, Board of Directors, Korean American Community Foundation
- Member, Board of Governors, Korean American Lawyers Association of Greater New York
- Recognized in the 2025 edition of GCR/Lexology Index's Competition guide
- Selected for inclusion in the 2021 and 2023-2024 editions of GCR/Who’s Who Legal: Competition and named a 2020 “Global Leader” by the publication
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Named among New York's top antitrust attorneys in the 2014-2026 editions of Chambers USA: America's Leading Lawyers for Business
- Named to Lawdragon's 2025-2026 "500 Leading Global Antitrust & Competition Lawyers" guide
- Selected for inclusion in the 2024-2026 editions of Lawdragon's "500 Leading Litigators in America"
- Winner of Global Competition Review's 2018 "Litigation Matter of the Year" for representing Wilson Sonsini client Amphastar Pharmaceuticals, Inc. in antitrust litigation before the U.S. Court of Appeals for the First Circuit
- State Bar of New York
Select Trial Experience
- In re Generic Pharmaceuticals Antitrust Litig.: Trial counsel for defendant manufacturer and court-appointed member of lead defense liaison counsel in one of the largest price-fixing and market-allocation cases in the U.S.
- Amphastar v. Momenta Pharmaceuticals: Trial counsel for plaintiff drug manufacturer in standard-setting monopolization case, which settled on the eve of trial, securing nearly $60 million for the client.
- In re Photochromic Lens Antitrust Litig.: Trial counsel for defendant manufacturer against monopolization claims following FTC consent order, which settled after defeating class certification claims of direct and indirect purchasers.
- United States of America v. Bazaarvoice, Inc.: Trial counsel for defendant software services provider against DOJ challenge to acquisition of rival firm.
- In re Flash Memory Products Litigation: Trial counsel for defendant technology company against antitrust and patent misuse claims brought by competitors.
- In the Matter of Evanston Northwestern Healthcare: Trial counsel for FTC in the first successful challenge of a hospital merger by a government agency since the 1980s.
- In the Matter of Chicago Bridge & Iron: Trial counsel for FTC in challenge of consummated merger of industrial storage tank manufacturers.
- FTC v. Libbey: Trial counsel for FTC in preliminary injunction trial to block merger of glassware manufacturers.
- FTC v. Swedish Match: Trial counsel for FTC in preliminary injunction trial to block merger of chewing tobacco manufacturers.
- In the Matter of VISX: Trial counsel for FTC in challenge to enforceability of laser eye surgery patent because of fraud on the Patent and Trademark Office.
Select Trial Experience
- In re Generic Pharmaceuticals Antitrust Litig.: Trial counsel for defendant manufacturer and court-appointed member of lead defense liaison counsel in one of the largest price-fixing and market-allocation cases in the U.S.
- Amphastar v. Momenta Pharmaceuticals: Trial counsel for plaintiff drug manufacturer in standard-setting monopolization case, which settled on the eve of trial, securing nearly $60 million for the client.
- In re Photochromic Lens Antitrust Litig.: Trial counsel for defendant manufacturer against monopolization claims following FTC consent order, which settled after defeating class certification claims of direct and indirect purchasers.
- United States of America v. Bazaarvoice, Inc.: Trial counsel for defendant software services provider against DOJ challenge to acquisition of rival firm.
- In re Flash Memory Products Litigation: Trial counsel for defendant technology company against antitrust and patent misuse claims brought by competitors.
- In the Matter of Evanston Northwestern Healthcare: Trial counsel for FTC in the first successful challenge of a hospital merger by a government agency since the 1980s.
- In the Matter of Chicago Bridge & Iron: Trial counsel for FTC in challenge of consummated merger of industrial storage tank manufacturers.
- FTC v. Libbey: Trial counsel for FTC in preliminary injunction trial to block merger of glassware manufacturers.
- FTC v. Swedish Match: Trial counsel for FTC in preliminary injunction trial to block merger of chewing tobacco manufacturers.
- In the Matter of VISX: Trial counsel for FTC in challenge to enforceability of laser eye surgery patent because of fraud on the Patent and Trademark Office.
Select Publications
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Co-author with K. Edelson, J. Ceccio, and C. Clemens, "United States" chapter, The Private Competition Enforcement Review, Fourteenth Edition, Law Business Research, 2021
- Co-author with D. Weick and K. Edelson, "United States" chapter, The Private Competition Enforcement Review, Thirteenth Edition, Law Business Research, 2020
- Featured in a Law360 video titled “In Their Own Words: 9 Partners on Diversity at Work,” July 2019
- Co-author with D. Weick, "United States" chapter, The Private Competition Enforcement Review, Tenth Edition, Law Business Research, 2017
- Co-author of "United States Private Litigation" chapter, The Private Competition Enforcement Review, Eighth Edition, Law Business Research, 2015
Select Speaking Engagements
- Panelist, "Reducing Risk While Navigating Between Pro and Anti-ESG Regulatory Actions," Finpublica and K&L Gates panel discussion, September 2023
- Presenter, "Recent Developments in Mergers & Acquisitions," ABA Corporate Counseling Committee Monthly Antitrust Update, Section of Antitrust Law, February 2019
- Speaker, "The Price Is Right: How to Know," ABA Antitrust Section, April 2018
- Speaker, "Antitrust: Emerging Issues in Online Economies," GCR Live Fifth Annual Antitrust Law Leaders Forum, Miami, Florida, February 2016
- Moderator, "United States v. American Express - Payment Card Litigation Transforms an Industry," ABA Antitrust Section, June 2015
- "Tackling Labor & Employment Issues in Professional Sports and Beyond," AABANY Fall Conference, September 2014
Select Publications
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Co-author with K. Edelson, J. Ceccio, and C. Clemens, "United States" chapter, The Private Competition Enforcement Review, Fourteenth Edition, Law Business Research, 2021
- Co-author with D. Weick and K. Edelson, "United States" chapter, The Private Competition Enforcement Review, Thirteenth Edition, Law Business Research, 2020
- Featured in a Law360 video titled “In Their Own Words: 9 Partners on Diversity at Work,” July 2019
- Co-author with D. Weick, "United States" chapter, The Private Competition Enforcement Review, Tenth Edition, Law Business Research, 2017
- Co-author of "United States Private Litigation" chapter, The Private Competition Enforcement Review, Eighth Edition, Law Business Research, 2015
Select Speaking Engagements
- Panelist, "Reducing Risk While Navigating Between Pro and Anti-ESG Regulatory Actions," Finpublica and K&L Gates panel discussion, September 2023
- Presenter, "Recent Developments in Mergers & Acquisitions," ABA Corporate Counseling Committee Monthly Antitrust Update, Section of Antitrust Law, February 2019
- Speaker, "The Price Is Right: How to Know," ABA Antitrust Section, April 2018
- Speaker, "Antitrust: Emerging Issues in Online Economies," GCR Live Fifth Annual Antitrust Law Leaders Forum, Miami, Florida, February 2016
- Moderator, "United States v. American Express - Payment Card Litigation Transforms an Industry," ABA Antitrust Section, June 2015
- "Tackling Labor & Employment Issues in Professional Sports and Beyond," AABANY Fall Conference, September 2014
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