In the rapidly evolving AI industry, reverse acquihires have emerged as a strategic alternative to traditional mergers and acquisitions (M&As). This study analyzes how major US Big Tech firms, including Microsoft, Amazon, Google, Meta, and Atlassian, strategically deploy reverse acquihires to balance the dual imperatives of talent acquisition and regulatory compliance. Through six detailed case studies, we show how these firms combine selective hiring with technology licensing to accelerate innovation while avoiding the legal scrutiny of full acquisitions. The findings highlight key strategic benefits, such as enhanced agility, lower integration friction, and reduced antitrust exposure, as well as critical trade-offs related to talent retention and ecosystem consolidation. For corporate strategists, policymakers, and startup founders, this study provides timely insights into how reverse acquihires are reshaping competitive dynamics and regulatory boundaries in the AI era.