Biography

Clients seek out John to litigate and provide counsel for their most important restrictive covenant, trade secret, and employment matters. He regularly assists clients with crisis or other emergent situations involving executive onboarding, departures, or misconduct; mass exoduses and raids; planned hiring of key employees from competitors; claims of discrimination, harassment, or retaliation; and incentive compensation programs, acquisitions, investments, and agreements between business partners, vendors, and customers. John is known for quickly dissecting the issues and understanding the dynamics of how a case will unfold before a judge, jury, or administrative agency, as well as its impact on a company’s business and reputation.
He has represented companies across the industry spectrum, including financial services, private equity, hedge funds, alternative asset management funds, pharmaceuticals, medical devices, retail, and technology.
John has expansive experience in restrictive covenant matters, encompassing matters involving non-competition, non-solicitation, confidentiality, non-disclosure, non-disparagement, judicial modification (bluepenciling) of agreements, clawback, and other remedial provisions. He has handled these issues in all 50 states and internationally.
John has developed a reputation as a preeminent employment lawyer. In 2023, John was recognized by National Law Journal as one of just 25 “Trailblazers” nationwide in the Employment and Discrimination Law space, based on his work developing national trade secrets and restrictive covenants expertise. In 2016, he received the 2016 Lexology Client Choice Award in the Employment & Benefits category, an accolade that recognizes law firms and partners around the world who stand apart for their excellent client care and high quality of service. Since 2013, John has been continuously recognized as a leading employment lawyer in Chambers USA, which notes he is “super effective, fierce and smart in court,” and offers “quick, efficient and concise advice,” and “has an innate sense of how to approach a case giving you the optimal chance of success.” Since 2008, he likewise has been ranked nationally by Legal 500 in the areas of Trade Secrets and Labor & Employment Disputes. John also has been recognized by Benchmark Litigation, Best Lawyers in America, and Super Lawyers, and is a Fellow of the College of Labor & Employment Lawyers.
Outside of his active practice, he is a noted and regular author and speaker on employment-related topics. John has been quoted by The National Law Journal, among other publications, regarding employment law and restrictive covenants. He also was honored with a 2013 Burton Award for Distinguished Legal Writing for the article, “Can An Employee Steal Social Media Influence?” which appeared in Corporate Counsel in March 2012.
John received his J.D. from Boston University School of Law and his B.A., cum laude, from Harvard University.
Prior to joining Weil, John worked at another international law firm, where he served as both Labor & Employment Law Department Operating Partner and as Co-Head of the Non-Compete and Trade Secrets Group.
Firm News & Announcements, Awards and Recognition, Speaking Engagements, Latest Thinking
Firm News & Announcements
- John Barry Named a 2023 Employment & Discrimination Law Trailblazer by the National Law Journal Firm Announcement — September 05, 2023
- Seven Weil Partners Named Top U.S. Corporate Employment Lawyers by Lawdragon in 2022 Firm Announcement — August 17, 2022
Awards and Recognition
- John P. Barry Named an Employment and Discrimination Law Trailblazer Award Brief — The National Law Journal
- John Barry Named a "Best Lawyer" for Employment Law – Management and Litigation – Labor and Employment Award Brief — The Best Lawyers in America
Speaking Engagements
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Goodbye Non-Competes? The FTC’s Proposed Rule
Speaker(s):
John P. Barry and
Jeffrey H. Perry
February 16, 2023 — Weil’s Employment Litigation Practice Group Head John P. Barry and U.S. Antitrust/Competition Practice Co-Head Jeffrey Perry participated in a panel presentation entitled “Goodbye Non-Competes? The FTC’s Proposed Rule,” which was sponsored by The Conference Board’s ESG Center. During this presentation, they discussed the U.S. Federal Trade Commission’s Non-Compete Clause Rule, its practical impact on companies, the prospects for, and potential challenges to, the rule, and what companies should do to prepare in the event it is implemented.
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FTC Proposes to Eliminate Almost All Non-Competes
Speaker(s):
Mark A. Perry,
John P. Barry,
Eric S. Hochstadt and
Regina Readling
January 30, 2023 — Weil partners Mark A. Perry, John Barry, Eric Hochstadt, and Regina Readling presented a cross-disciplinary Weil webinar entitled “FTC Proposes to Eliminate Almost All Non-Competes,” during which they assessed the FTC’s proposed rule and provided practical takeaways for employers.
Latest Thinking
- Limited Time Period in Which to Assert Arbitration Claims Upheld by Second Circuit Alert — Employer Update — By John P. Barry, Celine Chan and Brett Bonfanti — PDF — August 17, 2023
- Supreme Court Clarifies and Augments Title VII Religious Accommodation Standard: De Minimis No More Alert — Employer Update — By John P. Barry and Celine Chan — PDF — July 06, 2023
- Minnesota’s Non-Compete Ban Becomes Effective July 1, 2023 Alert — By John P. Barry, Rebecca Sivitz and Brett Bonfanti — PDF — June 28, 2023
- Will New York Enact Nation’s Most Sweeping NonCompete Ban? Alert — Employer Update — By John P. Barry, Rebecca Sivitz and Brett Bonfanti — PDF — June 23, 2023
- State Laws Extending Discrimination Protections to New Classes of Employees Publication — Westlaw Today — By John P. Barry and Sahar Merchant — PDF — April 19, 2023