Investor · New York, NY

Geoffrey C. Hsu

Open Geoffrey in the network graph →

Filings

81

SEC Form D

Connections

154

co-filers

Capital

$2.2B

across filings

Active

Feb 2014

to Dec 2025

Most-connected co-filers (154)

Carl L. Gordon · New York, NY72 shared W. C. Neild · New York, NY68 shared Sven H. Borho · New York, NY63 shared OrbiMed Advisors LLC · New York, NY40 shared C. S. Stevens · New York, NY35 shared Jonathan T. Silverstein · New York, NY33 shared David P. Bonita · New York, NY32 shared Samuel D. Isaly · New York, NY27 shared George R. Roberts · New York, NY23 shared Matthew S. Rizzo · New York, NY21 shared Peter A. Thompson · New York, NY21 shared OrbiMed Global Healthcare GP LLC · New York, NY17 shared Orbimed Advisors Llc · New York, NY15 shared Orbimed Advisors Llc · New York, NY15 shared Richard J. Wells · New York, NY12 shared Alan I. Mattamana · West Hartford, CT10 shared Mark R. Poff · San Francisco, CA10 shared C. M. Stout · SAN FRANCISCO, CA10 shared Mark L. Lane · Greenwood Village, CO10 shared David J. Sorkin · New York, NY10 shared Robert C. Desmarais · BEDMINSTER, NJ10 shared Alan Heppenstall · Mountain View, CA10 shared Gerald L. Van Horn · Greenwood Village, CO10 shared Sandrine E. Anton · Luxembourg, Luxembourg9 shared

Recent filings (81)

OrbiMed Genesis Fund, L.P.Dec 2025 · 13 co-filers OrbiMed Private Investments X, LPSep 2025 · 15 co-filers$1.8B OrbiMed Partners II, L.P.Jul 2025 · 24 co-filers OrbiMed RCO V Offshore Feeder, LPMay 2025 · 14 co-filers$1.8B OrbiMed Royalty & Credit Opportunities V, LPMay 2025 · 14 co-filers$1.8B OrbiMed Genesis Fund, L.P.Dec 2024 · 12 co-filers OrbiMed Royalty & Credit Opportunities V, LPNov 2024 · 15 co-filers$1.8B OrbiMed RCO V Offshore Feeder, LPNov 2024 · 15 co-filers$1.8B OrbiMed Partners II, L.P.Jul 2024 · 24 co-filers OrbiMed Genesis Fund, L.P.Dec 2023 · 11 co-filers OneTrust LLCAug 2023 · 8 co-filers$150.0M OrbiMed Partners II, L.P.Jul 2023 · 24 co-filers OrbiMed Private Investments IX, LPApr 2023 · 12 co-filers$1.9B OrbiMed New Horizons Fund, L.P.Apr 2023 · 11 co-filers OrbiMed RCO IV Offshore Feeder, LPDec 2022 · 12 co-filers$500.0M OrbiMed Royalty & Credit Opportunities IV, LPDec 2022 · 12 co-filers$1.8B OrbiMed Genesis Fund, L.P.Dec 2022 · 11 co-filers OneTrust LLCSep 2022 · 14 co-filers$6.4M OrbiMed RCO IV Offshore Feeder, LPJul 2022 · 12 co-filers$350.0M OrbiMed Partners II, L.P.Jul 2022 · 24 co-filers OrbiMed Royalty & Credit Opportunities IV, LPApr 2022 · 12 co-filers$1.8B OrbiMed Private Investments IX, LPApr 2022 · 12 co-filers$1.9B OrbiMed New Horizons Fund, L.P.Apr 2022 · 11 co-filers OrbiMed Genesis Fund, L.P.Dec 2021 · 11 co-filers OneTrust LLCOct 2021 · 14 co-filers$6.4M

Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Geoffrey in the interactive graph →