Mistral today announced that it has raised €3 billion in a Series D funding round at a post-money valuation of more than €21 billion, the largest equity fundraising round ever completed by a European technology company, three years after the company's launch.Samsung Electronics led the round, joined by co-leads Scaleup Europe Fund, managed by EQT, and existing investor PSG Equity.The round will significantly expand Mistral's frontier research, which is the foundation underpinning its infrastruct...