A series of stock transactions executed on September 29 left Cerebras chief operating officer Dhiraj Mallick with no remaining equity in the company. Mallick sold shares totaling $78 million, a complete divestment that removes his financial stake in the AI hardware manufacturer.

The exit occurred shortly after OpenAI's DevDay, where the company announced a new model called GPT6 ultrafast. SemiAnalysis reported that the latest model does not utilize Cerebras Wafer Scale Engines, coinciding with the COO's decision to liquidate his entire position.