Jon R. Roellke

Partner

Jon Roellke focuses on antitrust, trade regulation, and other commercial litigation, primarily counseling clients in the financial services, education, and high technology sectors of the economy. He handles class action and other complex litigation, advises clients on enforcement matters before state and federal agencies, and regularly counsels on competition issues, including algorithmic pricing, artificial intelligence, ESG collaborations, refusals to deal, distribution and franchising restraints, tying arrangements, group purchasing, exclusive dealing, joint ventures, and trade association activities . Firm clients have described Jon as “a fabulous lawyer who has been a great all-around antitrust counselor.”

Financial Benchmark Investigations and Litigation: Represented global financial institutions in multi-jurisdictional investigations and civil litigation alleging manipulation and antitrust violations relating to the setting of LIBOR and other financial benchmark rates
In re Treasury Securities Auction Antitrust Litigation, No. 22-943 (2d Cir., Decided February 1, 2024): Secured dismissal of a trading platform defendant and its affiliates from an antitrust class action alleging collusive conduct concerning the trading protocols for certain US Treasury securities
Intel Corp.: Secured denial of class certification for Intel Corp. in antitrust consumer class action related to Intel’s discounting and other pricing practices. Paul v. Intel (No. 05-485-LPS) (July 31, 2014, D. De.)
Simon v. KeySpan Corporation, et al. and Perez v. KeySpan Corporation, et al.: Represented Morgan Stanley in US Department of Justice and Federal Energy Regulatory Commission investigations and federal and state court actions alleging manipulation and antitrust violations arising from an energy derivative transaction. All claims in the federal and state court actions against Morgan Stanley were dismissed. 694 F.3d 196 (2d Cir. 2012), cert. denied, 133 S. Ct. 1998 (US 2013); 941 N.Y.S.2d 608 (App. Div. 2012), leave to appeal denied, 19 N.Y.3d 809, 951 N.Y.S.2d 109 (Table) (2012)
E*Trade Financial Corp. (Connecticut, Iowa, Missouri) — Represented E*Trade in state Attorneys General investigations into alleged collusive conduct in the retail securities brokerage industry
Overstock.com, et al v. Morgan Stanley & Co., et al./Avenius, et al. v. Morgan Stanley, et al. — Represented Bank of New York Mellon and Pershing LLC in unfair competition cases challenging prime brokerage short sale practices
Credit Suisse Securities (USA) LLC v. Billing — Secured dismissal of Lynch in an antitrust class action challenging the initial public offering distribution practices of underwriters. 127 S. Ct. 2383 (2007)
Draeger Medical Inc. — Represented Draeger Medical Inc. in federal antitrust lawsuit in the Eastern District of Texas challenging aftermarket service support, software, and replacement parts distribution policies.
Cordes & Co. Financial Services, Inc. v. A.G. Edwards & Sons, Inc. — Represented Merrill Lynch in private antitrust class actions challenging initial public offering underwriting fees. 502 F.3d 91 (2d Cir. 2007)
Telecom Tech. Servs. Inc. v. Rolm Company — Represented predecessor to Siemens Communications, Inc. in jury trial of intellectual property counterclaims in an antitrust case relating to the sale and service of telephone switching systems. 388 F.3d 820 (11th Cir. 2004)
InterVest, Inc. v. Bloomberg, L.P. — Represented fixed-income broker-dealer in the United States District Court for the Eastern District of Pennsylvania in a refusal to deal antitrust case stemming from the failure of an e-commerce bond trading platform. 340 F.3d 144 (3d Cir. 2003)
Fixed Income Trading Joint Ventures Investigations — Represented a major investment bank in joint venturer/fixed income broker-dealer in Justice Department antitrust investigations into multiple electronic bond trading platforms

Boston College Law School, 1987, Juris Doctor, with Honors
San Francisco State University, 1983, Bachelor of Arts, with Honors

District of Columbia
Massachusetts
Supreme Court of the United States
US Court of Appeals for the Second Circuit
US Court of Appeals for the Third Circuit
US Court of Appeals for the Eleventh Circuit
US Court of Appeals for the Federal Circuit
US Court of Appeals for the District of Columbia Circuit
US District Court for the District of Columbia
US District Court for the District of Maryland

Listed, Competition, Who’s Who Legal (2025)

Recognized, WWL: Competition, Lexology and Global Competition Review (2024)

Ranked, Antitrust: Litigation Specialists , District of Columbia, Chambers USA (2019, 2023, 2024)

Ranked, Antitrust, District of Columbia, Chambers USA (2007–2021)

Listed, Lawdragon 500, Leading Global Antitrust & Competition Lawyer, Antitrust, Trade Regulation & Commercial Litigation (2025)

Listed, Lawdragon 500, Leading Litigators in America, Washington, DC: Antitrust, Trade Regulation and Commercial Litigation (2022, 2024, 2025)

Recommended, Antitrust: Civil litigation/class actions: defense, The Legal 500 US (2021–2024)

Recommended, Antitrust: Cartel, The Legal 500 US (2012–2014, 2016, 2019–2021, 2024)

Recommended, Antitrust: Merger control, The Legal 500 US (2020, 2021)

Recommended, Dispute resolution: Financial services litigation, The Legal 500 US (2019)

Member, Practice Group of the Year, Competition, Law360 (2017–2021)

Recognized, US News & World Report and Best Lawyers 2017 Practice Group of the Year for Antitrust Law

Advisor, Georgetown University Law Center National Trial Team (1991–1996)

Member, American Bar Association, Antitrust and Commercial Litigation Sections

Member, American Bar Association, Financial Services Committee, Antitrust Section

Member, District of Columbia Bar Association, Antitrust and Litigation Sections