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BIOTECH EXPRESS

Third Arc Bio, Promega, Xenothera, Alaffia Health

February 4, 2026

Translated by artificial intelligence from the original French version. Learn more

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(United States/Biotech/Oncology & Immuno-inflammation)Third Arc Bio completes a $52M extension of its Series A, bringing the total round to $217M, to accelerate its immunology portfolio and further advance oncology programs into the clinic. The round is led by Andreessen Horowitz (a16z), joining historical investors including Omega Funds, Goldman Sachs Alternatives, BVF Partners, and T. Rowe Price. Founded in 2022, Third Arc Bio develops multi-specific antibodies capable of finely tuning T cell responses. Its lead candidate, ARC101, a bispecific T cell engager targeting CLDN6,...

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Third Arc Bio, Promega, Xenothera, Alaffia Health | BiotechFinances