Positron raises $875M Series C at $5B valuation for Asimov tapeout

Positron raised $875 million in Series C funding at a $5 billion post-money valuation, led by NEA, Atreides Management, Valor Equity Partners, Andra Capital, Dylan Patel's SemiAnalysis Capital, and Jim Clark. Funds support Asimov silicon tapeout targeted for end of 2026 and production in H2 2027.