Investor · Lakewood, CO

Doug A. Campbell

Open Doug in the network graph →

Filings

9

SEC Form D

Connections

26

co-filers

Capital

$13.0M

across filings

Active

Apr 2022

to Apr 2025

Most-connected co-filers (26)

David Clouse · Lakewood, CO5 shared Paul E. Singer · New York, NY3 shared Douglas Campbell · Louisville, CO3 shared Alan Altman · Indian Wells, CA3 shared Jeffrey Williams · Draper, UT3 shared James Thorson · Lakewood, CO3 shared Michael A. Minyard · Lakewood, CO3 shared Alan Borrelli · Manhasset, NY3 shared Dwayne M. Tidwell · The Woodlands, TX3 shared Carlo Passacantando · Burr Ridge, IL3 shared James Thorson · Denver, CO3 shared Thomas W. Maizels · London, United Kingdom2 shared Luke A. Kingston · London, United Kingdom2 shared Michael Gaffney · Rockville, MD2 shared Derek Woods · Rockville, MD2 shared James Peake · Rockville, MD2 shared Thomas Dubin · Rockville, MD2 shared Pamela Conley · Rockville, MD2 shared Adam S. Lewis · London, United Kingdom2 shared Martin Squier · London, United Kingdom2 shared Rafael Jorda · Rockville, MD2 shared Angela Howerton · Rockville, MD1 shared Cristiane Wolfe · Atlanta, GA1 shared David Hirsh · Rockville, MD1 shared

Recent filings (9)

Cellphire, Inc.Dec 2025 · 19 co-filers$3.0M Exum Instruments, Inc.Apr 2025 · 14 co-filers$3.0M Exum Instruments, Inc.Jul 2024 · 14 co-filers$2.0M Exum Instruments, Inc.Mar 2024 · 14 co-filers$10.7M Cellphire, Inc.Oct 2023 · 25 co-filers$8.0M

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