Investor · San Francisco, CA
Jonathan B. Siegel
Open Jonathan in the network graph →Filings
84
SEC Form D
Connections
297
co-filers
Capital
$45.2M
across filings
Active
Sep 2019
to Nov 2023
Most-connected co-filers (297)
Lisa Conte · San Francisco, CA42 sharedSteven King · San Francisco, CA27 sharedPerez HealthCor Management, L.P · New York, NY26 sharedChristine B. Clarke · New York, NY26 sharedArthur B. Cohen · Norwalk, CT26 sharedJoseph P. Healey · New York, NY26 sharedJames Bochnowski · San Francisco, CA26 sharedMichael W. Haley · Orlando, FL26 sharedDerek G. Rance · Toronto, Ontario, Canada26 sharedJonathan Wolin · San Francisco, CA25 sharedCarol Lizak · San Francisco, CA24 sharedPaul D. Cronin · Toronto, Ontario, Canada23 sharedTonia D. Kufner · White Bear Lake, MN23 sharedDavid Frazier · Lehi, UT23 sharedMichael Yang · New York, NY23 sharedGreg J. Divis · San Francisco, CA22 sharedScott Frazier · Lehi, UT21 sharedAnabelle P. Gray · New York, NY21 sharedAvi D. Horev · New York, NY21 sharedGeorge A. Flach · Toronto, Ontario, Canada21 sharedRichard G. Faucher · Toronto, Ontario, Canada19 sharedEric 4. Huang · Detroit, MI14 sharedChris D. Gaulin · New York, NY14 sharedC.J. 4. Ritterbusch · Palatine, IL14 shared
Recent filings (84)
Jaguar Health, Inc.Nov 2025 · 26 co-filers$10.8MJaguar Health, Inc.Nov 2025 · 26 co-filers$10.8MJaguar Health, Inc.Oct 2025 · 26 co-filers$1.0MJaguar Health, Inc.Oct 2025 · 26 co-filers$1.0MJaguar Health, Inc.Sep 2025 · 26 co-filers$2.4MJaguar Health, Inc.Sep 2025 · 26 co-filers$2.4MJaguar Health, Inc.May 2025 · 26 co-filers$1.5MJaguar Health, Inc.May 2025 · 26 co-filers$1.5MGalera Therapeutics, Inc.Jan 2025 · 17 co-filers$2.9MGalera Therapeutics, Inc.Jan 2025 · 17 co-filers$2.7MURANIUM ENERGY CORPSep 2024 · 25 co-filers$104KURANIUM ENERGY CORPMar 2024 · 23 co-filers$8KBrevan Howard PT Fund LtdJan 2024 · 19 co-filersJaguar Health, Inc.Nov 2023 · 23 co-filers$60KJaguar Health, Inc.May 2023 · 23 co-filers$1.8MJaguar Health, Inc.May 2023 · 23 co-filers$1.9MBrevan Howard PT Fund LtdJan 2023 · 19 co-filersBIN - Class A AI LLCJan 2023 · 14 co-filers$100.0MBIN - CLASS A QP LLCJan 2023 · 14 co-filers$100.0MJaguar Health, Inc.Sep 2022 · 23 co-filers$7KJaguar Health, Inc.Sep 2022 · 23 co-filers$12.0MJaguar Health, Inc.Jul 2022 · 23 co-filers$10.0MJaguar Health, Inc.Apr 2022 · 23 co-filers$51KJaguar Health, Inc.Apr 2022 · 23 co-filers$8KJaguar Health, Inc.Apr 2022 · 23 co-filers$40K
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Jonathan in the interactive graph →