Investor · San Diego, CA

Mark Gergen

Open Mark in the network graph →

Filings

11

SEC Form D

Connections

56

co-filers

Capital

$195.5M

across filings

Active

Apr 2018

to Aug 2025

Most-connected co-filers (56)

Dirk Soenksen · Carlsbad, CA5 shared Thomas Bologna · St. Helier, Y95 shared Zubeen N. Shroff · Stamford, CT5 shared David L. Schlotterbeck · Sunnyvale, CA5 shared Henry N. Kelly · LONDON, United Kingdom3 shared R.H. ". Seale, Iii · Austin, TX3 shared Robert N. Raymond · GRAND CAYMAN, Cayman Islands3 shared Patrick Yount · Vista, CA3 shared Nick N. Williams · LONDON, United Kingdom3 shared William A. Jones · Luxembourg, Luxembourg3 shared Jordan N. Kitson · GRAND CAYMAN, Cayman Islands3 shared Jeff ". Diehl · Austin, TX3 shared Don Wessler · Arenzville, IL2 shared Lee E. Burrus · Arenzville, IL2 shared Eric M. Ostertag · Lexington, KY2 shared Marcea B. Lloyd · San Diego, CA2 shared Kevin M. Dilorenzo · Minneapolis, MN2 shared Steve H. Ginder · Jacksonville, IL2 shared Steve Baloff · Palo Alto, CA2 shared John Giannuzzi · Atlanta, GA2 shared John Schmid · Hartford, CT2 shared Christopher Ciano · Carlsbad, CA2 shared Thomas J. Donohue, Jr · Washington, Washington, D.C.2 shared David Hirsch · New York, NY2 shared

Recent filings (11)

Ceresti Health, Inc.Aug 2025 · 9 co-filers$15.0M Ceresti Health, Inc.Aug 2025 · 9 co-filers$15.0M Ceresti Health, Inc.Feb 2025 · 5 co-filers$11.1M Ceresti Health, Inc.Feb 2025 · 5 co-filers$11.1M Poseida Therapeutics, Inc.Aug 2023 · 21 co-filers$25.0M Poseida Therapeutics, Inc.Aug 2023 · 21 co-filers$25.0M Poseida Therapeutics, Inc.Apr 2019 · 17 co-filers$150.0M Poseida Therapeutics, Inc.Apr 2019 · 17 co-filers$150.0M Poseida Therapeutics, Inc.Apr 2018 · 9 co-filers$30.5M Poseida Therapeutics, Inc.Apr 2018 · 9 co-filers$30.5M APERIO TECHNOLOGIES INCAug 2012 · 15 co-filers$6.0M APERIO TECHNOLOGIES INCJul 2012 · 15 co-filers$6.0M APERIO TECHNOLOGIES INCMay 2012 · 14 co-filers$5.5M ARENZVILLE BANCORP INCMar 2012 · 16 co-filers$1.4M ARENZVILLE BANCORP INCJan 2012 · 16 co-filers$998K PSYLIN NEUROSCIENCES INCAug 2009 · 6 co-filers$10.0M

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