SandboxAQ announced a round of more than $300 million from Fred Alger Management, LLC, T. Rowe Price Associates, Inc., Mumtalakat, Parkway Venture Capital, Breyer Capital, Rizvi Traverse, S32, US Innovative Technology Fund, Ava Investments, Eric Schmidt, Marc Benioff, David Siegel, Yann LeCun, IQT, and other prominent investors. The funding round valued the company at $5.3 billion on a pre-money basis.