Investor · Santa Barbara, CA

George C. Holbrook

Open George in the network graph →

Filings

22

SEC Form D

Connections

58

co-filers

Capital

$320K

across filings

Active

May 2018

to Jun 2025

Most-connected co-filers (58)

Carol Reynolds · Grand Cayman, Cayman Islands9 shared Jean A. Sabatier · EDEN PRAIRIE, MN9 shared Sean Simon · Roslyn, NY9 shared Karla J. Bodden · Grand Cayman, Cayman Islands9 shared Andrew Greff · Austin, TX9 shared Larry Morgenthal · Roslyn, NY9 shared Chaithra K. Timalapura · IRVING, TX9 shared Matieu R. Plamondon · Calgary, Alberta, Canada9 shared Larry Hood · Alamenda, CA7 shared Robert Hallewell · Alamenda, CA7 shared Flat Footed II GP LLC · Wilson, WY6 shared Douglas R. Marlin · Calgary, Alberta, Canada6 shared Michael A. Porter · EDEN PRAIRIE, MN6 shared Michael Henos · Gaithersburg, MD5 shared Helen Thackray · Gaithersburg, MD5 shared M. J. Barrett · Gaithersburg, MD5 shared William Gust · Gaithersburg, MD5 shared Dhruva S. Moudgal · Phoenix, AZ5 shared Michael A. Wirth · Milwaukee, WI5 shared Cheryl Hess · Alamenda, CA5 shared Kelly Brodbeck · Alamenda, CA5 shared Harold Shattuck · Alamenda, CA5 shared John Baldwin · Gaithersburg, MD5 shared Franklin Top · Gaithersburg, MD5 shared

Recent filings (22)

Soundlink Investment Partners Offshore, LtdJun 2025 · 11 co-filers Soundlink Investment Partners Offshore, LtdJun 2024 · 11 co-filers Soundlink Investment Partners Offshore, LtdJun 2023 · 11 co-filers Soundlink Investment Partners Offshore, LtdOct 2022 · 11 co-filers Soundlink Investment Partners Offshore, LtdOct 2021 · 11 co-filers Soundlink Investment Partners Offshore, LtdMay 2021 · 11 co-filers PriorAuthNow, IncOct 2020 · 12 co-filers Soundlink Investment Partners Offshore, LtdMay 2020 · 11 co-filers Virtual World Computing, LLCDec 2019 · 7 co-filers$1.0M Virtual World Computing, LLCOct 2019 · 7 co-filers$1.0M Soundlink Investment Partners Offshore, LtdMay 2019 · 11 co-filers PriorAuthNow, IncFeb 2019 · 11 co-filers PriorAuthNow, IncMay 2018 · 13 co-filers Soundlink Investment Partners Offshore, LtdMay 2018 · 11 co-filers Vapore, Inc.Jun 2010 · 13 co-filers$700K Thingap, LLCMay 2010 · 2 co-filers$500K GeoTek Energy, LLCMay 2010 · 10 co-filers$18.0M Vapore, Inc.May 2010 · 13 co-filers$700K Vapore, Inc.Apr 2010 · 13 co-filers$1.2M Vapore, Inc.Sep 2009 · 13 co-filers$500K GeoTek Energy, LLCAug 2009 · 10 co-filers$12.5M Vapore, Inc.Aug 2009 · 13 co-filers$500K

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