Investor · Plantation, FL

Barry Gainsburg

Open Barry in the network graph →

Filings

19

SEC Form D

Connections

57

co-filers

Capital

$513K

across filings

Active

Feb 2018

to Sep 2024

Most-connected co-filers (57)

Jennifer Myung · Boulder, CO9 shared Rodney Thompson · Boulder, CO8 shared Philip J. Hempleman · Stamford, CT5 shared Ardsley Partners I GP, LLC · Stamford, CT5 shared Ardsley Advisory Partners LP · Stamford, CT5 shared Val Dziedzic · Boulder, CO5 shared Spencer J. Hempleman · Stamford, CT5 shared Darren S. Guccione · Chicago, IL4 shared Magnus Hillestad · Palo Alto, CA4 shared John B. Elstrott, Jr · San Clemente, CA4 shared David Sabath · New York, NY4 shared Simen S. Skogsrud · Palo Alto, CA4 shared Jarrod C. Maly · Ringwood, OK4 shared Margaret Regalia · Englewood, CO4 shared Jeffrey A. Leerink · Boston, MA4 shared Anselme Le Van · MOUNTAIN VIEW, CA4 shared David Ford · New York, NY4 shared Craig B. Lurey · Chicago, IL4 shared Brent Watts · Savannah, GA4 shared Gregory L. Verdine · Cambridge, MA4 shared Edward M. Fitzgerald · Cambridge, MA4 shared Weiqing M. Zhou · Cambridge, MA4 shared Matthew Cantor · New York, NY4 shared Michael Bulley · Gaithersburg, MD3 shared

Recent filings (19)

Ardsley World Information Technology Fund, L.P.Nov 2025 · 9 co-filers Ardsley Partners Fund II, L.P.Nov 2025 · 9 co-filers Ardsley Duckdive Fund, L.P.Nov 2025 · 9 co-filers Ardsley Sustainable Opportunities Fund, L.P.Nov 2025 · 9 co-filers Ardsley Partners Advanced Healthcare Fund, L.P.Nov 2025 · 8 co-filers Romulus Parent LLCSep 2024 · 9 co-filers FOG PHARMACEUTICALS, INC.Dec 2022 · 21 co-filers$178.0M FOG PHARMACEUTICALS, INC.Jan 2021 · 20 co-filers$107.0M Dry, CoNov 2019 · 11 co-filers$263K Cannaholdco, Inc.Sep 2019 · 3 co-filers$2.0M Dry, CoJun 2019 · 11 co-filers$4.0M Dry, CoMay 2019 · 11 co-filers$250K Dry, CoApr 2019 · 11 co-filers$250K FOG PHARMACEUTICALS, INC.May 2018 · 14 co-filers$66.0M Romulus Parent LLCFeb 2018 · 7 co-filers FOG PHARMACEUTICALS, INC.Feb 2018 · 14 co-filers$50.0M FUTURES PORTFOLIO FUND L.P.Mar 2009 · 7 co-filers SAGE FUND LPMar 2009 · 9 co-filers SAGE FUND LPMar 2009 · 9 co-filers$250.0M

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