Nathan E. Denning

Partner

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Home 9 Person 9 Nathan E. Denning

Nathan E. Denning

Partner

Nathan is a Partner in Wiggin and Danaโ€™s Litigation Department and is Co-Chair of the firmโ€™sย Antitrust and Technology Disputes Practice Group. Recognized as aย โ€œRising Starโ€ย byย The New York Law Journal, Nathan was also named toย Benchmark Litigationโ€™sย โ€œ40 and Under Listโ€ย for three consecutive years before being named a โ€œFuture Starโ€ in 2026. His advocacy has been praised byย Am Law Litigation Dailyย for itsย โ€œattention-catching storytelling,โ€ย and his successful defense of a contract and intellectual property dispute earned him runner-up honors asย The American Lawyerโ€™s โ€œLitigator of the Week.โ€ย Nathan was also one of the lead Wiggin lawyers representing Epic Games in its antitrust victory over Google in federal court in California, a win for whichย Global Competition Review awarded โ€œLitigation of the Year.โ€

A generalist litigator with a nationwide practice, Nathan has obtained a string of favorable results in high-stakes matters for clientsโ€”plaintiffs and defendants alikeโ€”across a range of industries and practice areas. He also represents clients in FTC, SEC, and DOJ investigations, conducts internal investigations, and litigates Chapter 11 bankruptcy adversary proceedings.

Before joining Wiggin and Dana, Nathan practiced at Cravath, Swaine & Moore LLP.

Nathanโ€™s recent notable representations include:

  • Aurobindo Pharma USA: Representing Aurobindo, a leading generics pharmaceutical company, as lead counsel in a multidistrict litigation comprising dozens of antitrust lawsuits brought by state attorneys general and private plaintiffs relating to the pricing of generic pharmaceuticals.
  • NextEra Energy: Representing NextEra, one of the worldโ€™s largest energy companies, as lead counsel in New York state court litigation concerning the operation of a group of wind farms in Pennsylvania, West Virginia, and California.
  • OpenX: Representing OpenX, a digital advertising platform, as co-lead counsel with Cravath in an action against Google alleging that Googleโ€™s anticompetitive conduct in the publisher ad server and ad exchange markets has stifled innovation and harmed competition in violation of the Sherman Act.
  • Former Twitter Executive: Represented Twitterโ€™s former Chief Marketing Officer as lead counsel in a federal lawsuit in California against Elon Musk and X Corp. seeking tens of millions of dollars in unpaid severance. Following 18 months of litigation, the case settled on confidential terms on the eve of Muskโ€™s deposition.
  • Dooney & Bourke Founder: Represented the founder of luxury leather goods brand Dooney & Bourke as lead counsel in litigation seeking approval to subdivide tens of millions of dollarsโ€™ worth of real estate in one of Greenwich, Connecticutโ€™s most exclusive residential communities. Following nearly two years of litigation, defendants agreed to permit the subdivision as proposed and to reimburse Nathanโ€™s client for millions of dollars in damages and legal fees.
  • American Express: Represented American Express as co-lead counsel with Cravath in defending more than 1,200 individual merchant arbitrations before JAMS and AAA, each one challenging Amexโ€™s anti-steering and non-discrimination rules. After obtaining favorable rulings in hundreds of cases, the remaining claimants withdrew all claims.
  • Murdoch Family Trust: Represented three of Rupert Murdochโ€™s children as co-counsel with Cravath in Nevada state court in defeating an effort by their father to change the terms of the family trust that controls both Fox and News Corp.

Additional representative matters are detailed on the Experience tab above.

Nathan received his J.D. from the University of Pennsylvania Law School and earned both a B.S. in Electrical and Computer Engineering and a B.A. in Political Science from The Ohio State University. Following law school, he served as a law clerk to Judge Roger L. Wollman of the U.S. Court of Appeals for the Eighth Circuit and to Judge James S. Gwin of the U.S. District Court for the Northern District of Ohio.

Education

  • University of Pennsylvania Law School (J.D.)
    • cum laude
  • The Ohio State University (B.A. and B.S.)
    • magna cum laude
    • honors

Bar Admissions

Awards and Recognitions

The New York Law Journal โ€œRising Starsโ€ (2024)

Benchmark Litigation โ€œFuture Starโ€ (2026)

Benchmark Litigation โ€œ40 & Underโ€ (2022-2025)

The American Lawyer โ€œLitigator of the Weekโ€ Runner Up (2023)

Resources

Click to visit, Blog of Reason

blog of reason logo, antitrust, consumer protection,

News

Experience

Antitrust Litigation

  • Epic Games: Member of the core trial team that secured a jury verdict on behalf of Epic Games against Google in the Google Play Store litigation in the U.S. District Court for the Northern District of California. Following a four-week trial, the jury deliberated for fewer than three hours before returning a verdict for Epic on every claim, including unlawful monopolization, illegal restraints of trade, and tying in violation of the Sherman Act. The case successfully challenged Googleโ€™s anticompetitive conduct in the markets for Android app distribution and in-app billing services. Nathanโ€™s responsibilities included eliciting trial testimony from key third parties. He was also part of the Epic Games team that won a first-of-its-kind permanent injunction against Apple requiring changes to its platform practices, which was later affirmed on appeal.
  • Nationwide Distributor of Customized Emergency Vehicles: Represented a nationwide distributor as co-lead counsel in a federal lawsuit alleging that a supplierโ€™s attempted termination of a nine-figure contractual relationship violated the Robinson-Patman Act, state distributor relationship statutes, and a state unfair trade practices statute. Following an initial hearing on the clientโ€™s request for a temporary restraining order and preliminary injunction, the case settled on favorable terms.
  • Qualcomm, Inc.: Part of the trial team representing Qualcomm in high-stakes antitrust litigation with Apple concerning chipset sales and licensing practices, culminating in a favorable settlement for Qualcomm on the first day of trial in federal court.

Intellectual Property Litigation

  • Mystic Seaport Museum: Represented Mystic Seaport Museum, one of the worldโ€™s foremost maritime museums, as lead counsel in a federal copyright and contract lawsuit seeking to nullify a decades-old donation of thousands of historically significant yacht design drawings. The district courtย granted summary judgment on all of plaintiffsโ€™ copyright and contract-based copying claims and further held that the donated drawingsโ€”described as the โ€œyacht-world equivalent of holding the original sheets where Beethoven drafted his symphoniesโ€โ€”must remain with the museum. The summary judgment win earned Nathan a spot asย The American Lawyerโ€™sย runner-upย โ€œLitigator of the Week,โ€ย and hisย winning summary judgment briefย earned a separateย profileย fromย Am Law Litigation Daily. As part of the settlement, the plaintiff issued an apology for bringing the suit.
  • The Authors Guild, Inc.: Represented The Authors Guild and other artistsโ€™ rights organizations as amici curiae in a Ninth Circuit case addressing the continued viability of the copyright โ€œdiscovery rule.โ€ The Ninth Circuit favorably quoted amiciโ€™s brief in holding the rule โ€œalive and well,โ€ opening a circuit split and contributing to the Supreme Court granting certiorari in a related case. Nathan also represented The Authors Guild as amicus curiae before the Supreme Court, which ruled 6โ€“3 in favor of the Guildโ€™s position.

Other Commercial Litigation

  • Shipbroking Firm: Representing a shipbroking firm in a dispute over an unpaid brokerage fee arising from the sale of a liftboat for use in an oil development project in Angola. The matter settled with the client recovering its full fee.
  • Family of Online Dating Companies: Representing a family of online dating companies as lead counsel in consumer litigations and arbitrations arising from their platforms. Obtained complete dismissals of claims, including on the basis that they were barred by Section 230 of the Communications Decency Act.
  • Major Streaming Service: Represented a major streaming service as co-lead counsel in an arbitration involving valuation disputes between the serviceโ€™s two investor-owners, both major media companies. Succeeded in having our client dismissed as a party.

Bankruptcy Adversary Proceedings

  • Chaucer: Represented Chaucer in an adversary proceeding against the estate of Vesttoo following revelation of a $4 billion fraud. Successfully established that certain funds claimed by the estate were subject to a constructive trust for Chaucerโ€™s benefit, resulting in an 82.5% recovery of approximately $19 millionโ€”the highest absolute and percentage recovery among similarly situated creditors.
  • Pacific Gas & Electric: Represented PG&E in tort litigation arising from the 2017 Tubbs Fire, then the most destructive wildfire in California history.
  • Credit Suisse: Represented Credit Suisse in litigation against the Lehman estate concerning the termination and close-out of tens of thousands of derivatives trades.

Government and Other Investigations

  • Representing a special committee of the board of a public company in connection with a shareholder demand.
  • Represented a major third-party handbag manufacturer in connection with the FTCโ€™s successful litigation blocking the proposed merger between Tapestry, Inc. and Capri Holdings Limited.
  • Represented a public company in an internal investigation into potential misconduct by a senior executive.
  • Represented a private family foundation in internal investigations involving potential employee misconduct and related whistleblower claims.
  • Represented a public company employee as lead counsel in an SEC investigation into potential insider trading; the SEC declined to pursue enforcement action.
  • Represented a cryptocurrency firm and its CEO in an investigation into anonymous defamatory statements sent to prospective investors, which led to the identification of the speaker and a retraction.

Firm Highlights