The Microsoft–Inflection AI deal shocked Silicon Valley: Nearly all seventy of Inflection’s employees resigned simultaneously to join Microsoft, which then paid the startup’s shell $650 million. After the mass exodus, Inflection appointed new leadership that switched the company’s direction, while Microsoft assumed the mantle of Inflection’s old mission. The competitive effect was thus nearly identical to that of a traditional acquisition. But relying on their novel deal structure to shield them from regulatory requirements, Microsoft and Inflection barreled ahead without filing a notice of the transaction with regulators. The rest of the industry soon followed suit, with Amazon, Google, and Meta all using this “reverse acquihire” playbook to absorb AI startups’ competitive cores while evading regulatory review.

Regulators must close this loophole before competitive harm takes root. And this Comment argues that they can—by clarifying that reverse acquihires constitute asset acquisitions under the Hart–Scott–Rodino Act (HSR Act). While HSR Act enforcement has traditionally focused on tangible asset acquisitions, this Comment evaluates legal tools regulators can use to mandate review of certain intangible asset acquisitions as well. Drawing on the treatment of intangible assets in divestiture orders, HSR Act review of intellectual property licensing agreements, and guidance from foreign competition authorities, this Comment demonstrates that reverse acquihires are acquisitions of AI startups’ most valuable assets: their business information and know-how. It concludes by suggesting factors that regulators should consider to craft workable rules, including the size of a deal in dollars, the size of a deal in personnel transferred, and post-transaction changes to startup operations.

Fridman, Nina (2026) "When a Mass Resignation Becomes a Merger: Rethinking Asset Acquisitions for the AI Era," University of Chicago Law Review: Vol. 93: Iss. 4, Article 4.
Available at: https://chicagounbound.uchicago.edu/uclrev/vol93/iss4/4

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