Circle Pharma is a biotechnology company creating bioavailable macrocyclic peptide therapeutics that target protein-protein interactions.
Circle Pharma has raised $92.5M in total funding. The most recent round was Series E. The last funding was announced in September 2026.
Circle Pharma's investors include RA Capital Management, Eli Lilly, Pfizer, The Column Group, Lifeforce Capital.
Circle Pharma is headquartered in San Francisco, United States.
Circle Pharma is a biotechnology company creating bioavailable macrocyclic peptide therapeutics that target protein-protein interactions.
Circle Pharma is at the Series E stage.
Free to use in articles, research, and reference works. Stable URL — will not change. Data on this page last updated .
"Circle Pharma — Funding & Investors." VCBacked, September 16, 2026, https://www.vcbacked.co/company/circle-pharma. Accessed October 14, 2026.
VCBacked. (2026). Circle Pharma — Funding & Investors. Retrieved October 14, 2026, from https://www.vcbacked.co/company/circle-pharma
{{cite web |title=Circle Pharma — Funding & Investors |url=https://www.vcbacked.co/company/circle-pharma |website=VCBacked |access-date=October 14, 2026}}Profile data sourced and verified per the VCbacked methodology · Last funding round dated