Pathos is a Biotech company based in Chicago, IL. It has raised $345M in total funding. Latest round: Series D. Backed by Revolution, Lightbank, Builders VC.
Pathos is a Biotech company based in Chicago, IL. Pathos has raised $345M in total disclosed funding. That places its disclosed total in the $250M–$1B range. Its most recent disclosed round is a Series D announced in April 2025. The round record for Pathos runs through 2025; nothing later has been disclosed. Investors on record include Revolution, Lightbank, Builders VC, NEA. 4 distinct backers are named across the disclosed rounds.
Pathos totals reflect disclosed capital only — undisclosed extensions and secondaries are excluded. Use the related Biotech companies in Chicago below to benchmark round size and investor mix.
Company funding database · Investor directory · Founder database · Mega-rounds 2026