Keystone has appointed Karthik Hemmanur as Partner and Head of its Washington, D.C. office, further strengthening the firm’s presence in the nation’s capital.
Hemmanur brings expertise in tax, financial economics and valuation, advising companies and law firms on complex disputes, transactions and strategic matters. His work spans transfer pricing, international tax, intellectual property valuation and litigation support.
The appointment builds on Keystone’s continued investment in Washington, where the firm recently expanded its antitrust leadership with former Department of Justice economists. Hemmanur will lead the office’s growth and deepen Keystone’s multidisciplinary advisory capabilities at the intersection of economics, technology and law.
The DOJ’s landmark case over Internet Explorer concludes with remedies that redefine antitrust enforcement against dominant platforms and establish enduring standards for competition in software ecosystems.
Marco Iansiti and Roy Levien publish book that introduces how keystone firms—platforms with outsized ecosystems—shape how leaders, regulators, and courts understand network effects, competition, and value creation.
A decisive ruling clears Oracle in the acquisition of PeopleSoft, resetting merger analysis in enterprise software and reinforcing innovation-driven, dynamic market definitions for technology sector.
Foundational merger reshapes digital advertising, ad tech, monetization of content as well as the economic and technical theories behind two decades of antitrust scrutiny in world's largest global economies.
High-stakes patent lawsuit against LinkedIn is resolved days before jury selection, eliminating litigation risk and reinforcing defensive strategies against opportunistic IP challenges.
On the eve of its IPO, Facebook confronts sweeping patent claims from Yahoo, leading to a rapid resolution, value preservation and a dramatic expansion of Facebook’s patent portfolio.
A landmark transfer-pricing case examines how software, data, and marketing intangibles are valued, depreciated, and allocated across global e-commerce platforms.
As AI becomes central to competition, Keystone formalizes a dedicated machine learning capability to address algorithmic markets, data advantage, and emerging regulatory scrutiny.
Marco Iansiti and Karim Lakhani reframe how firms scale, operate, and compete in AI-driven ecosystems, becoming a definitive guide for digital transformation and governance.
U.S. Supreme Court rules Google’s use of Java APIs as fair use, preserving interoperability and setting a defining precedent for software development and platform innovation.
Landmark algorithm auditing case revealing how ranking and pricing algorithms misled consumers setting a global precedent for assess digital platform conduct.
Amgen resolves the FTC’s challenge through targeted remedies, setting new boundaries for antitrust theory and enforcement in life sciences and healthcare M&A.
Global regulators challenge Microsoft’s acquisition of Activision Blizzard, testing how antitrust law applies to vertical integration across gaming content, consoles, subscriptions, and cloud distribution in fast-evolving digital ecosystems.
Epic’s actions against Google in the United States and Australia test the legality of app store fees, self-preferencing, and control over Android distribution, reshaping how competition law applies to mobile platforms, developer access, and digital payment ecosystems.
Following its monopoly liability case, the Department of Justice advances remedies aimed at curbing Google’s control over search distribution and defaults, setting potential precedents for how antitrust enforcement can reshape platform contracts, data access, and competition.
Keystone is involved in several matters where the critical issues – strategic, regulatory, and legal - related to Gen AI and the key platforms and ecosystems are being assessed.
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