Investor · Houston, TX

David Parkinson

Open David in the network graph →

Filings

6

SEC Form D

Connections

34

co-filers

Capital

$78.1M

across filings

Active

Sep 2012

to Oct 2021

Most-connected co-filers (34)

David C. Parkinson · Menlo Park, CA5 shared David Wood · Centennial, CO3 shared Scott W. Requadt · Cambridge, MA3 shared Franklin Berger · Framingham, MA3 shared Gary Sollis · Vancouver, British Columbia, Canada3 shared Richard Glickman · Vancouver, British Columbia, Canada3 shared Richard V. Glickman · Montreal, Quebec, Canada3 shared Gary Economo · Ottawa, Ontario, Canada2 shared Dale T. Zajicek · Houston, TX2 shared Jeffrey D. Port · New York, NY2 shared Paul J. Finnegan · CHICAGO, IL2 shared John R. Jaskowiak · San Diego, CA2 shared John T. Lomoro · San Diego, CA2 shared Marianne Sadar · Vancouver, British Columbia, Canada2 shared Paul Cossum · Houston, TX2 shared Raymond Andersen · Vancouver, British Columbia, Canada2 shared Frank Perabo · Houston, TX2 shared Peter A. Kiener · Montecito, CA1 shared Tony F. Polglase · Vancouver, British Columbia, Canada1 shared John A. Martin · Newtown, PA1 shared Sandy M. Zweifach · Sausalito, CA1 shared Daniel Menichella · Gaithersburg, MD1 shared Robert Garland · Pittsburgh, PA1 shared Marc Cohen · North Andover, MA1 shared

Recent filings (6)

Angiocrine Bioscience, Inc.Sep 2025 · 9 co-filers$3.0M Angiocrine Bioscience, Inc.Sep 2025 · 9 co-filers$3.0M Angiocrine Bioscience, Inc.Oct 2021 · 13 co-filers$99.4M ESSA Pharma Inc.Aug 2019 · 15 co-filers$36.0M ESSA Pharma Inc.Apr 2016 · 21 co-filers$5.0M ESSA Pharma Inc.Jan 2016 · 21 co-filers$15.0M Zyngenia, Inc.Sep 2012 · 12 co-filers$10.0M

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