Chip giant Nvidia, meanwhile, sharply accelerated its dealmaking, ranking among the most active and highest-spending investors for the month. The chip giant participated in nine disclosed rounds of at least $5 million ' marking its busiest month for investing since at least the beginning of 2025 ' and led or co-led financings collectively valued at $1.3 billion. San Francisco-based General Catalyst ranked as the most active lead investor in rounds of $5 million or more, leading or co-leading five such deals. Its largest was the $1.1 billion Series A for River AI, which provides custom AI fine-tuning for businesses. General Catalyst also led or co-led a $116 million Series E for Cityblock Health, along with three seed rounds ranging from $10 million to $25 million, Crunchbase data shows. The scale of those rounds varied considerably. The four deals that Andreessen led or co-led totaled more than $1.15 billion, driven by an $800 million Series C for defense tech company Castelion and...
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