Investor · New York, NY

Eileen Tanghal

Open Eileen in the network graph →

Filings

9

SEC Form D

Connections

49

co-filers

Capital

$159.6M

across filings

Active

Nov 2021

to Aug 2024

Most-connected co-filers (49)

Black Opal Ventures, Llc · New York, NY5 shared Tara Bishop · New York, NY5 shared John J. Viscogliosi · New York, NY4 shared Black Opal Ventures Gp, Llc · New York, NY4 shared Rainer Ender · Zurich, V84 shared Jeffrey S. Levin · New York, NY4 shared Black Opal Ventures, Llc · New York, NY4 shared Charlie L. Rose · DALLAS, TX4 shared Julie Boardman · NEW YORK, NY4 shared Black Opal Ventures Gp, Llc · New York, NY4 shared Black Opal Ventures, Llc · New York, NY4 shared Maria Berkman · Austin, TX2 shared Fotios Plakogiannis · Whitestone, NY2 shared Christopher Kaster · Austin, TX2 shared Adam Berman · Austin, TX2 shared Arthur B. Makris · DALLAS, TX2 shared Kenneth Anderson · Wellesley, MA2 shared Eric Baum · Charlotte, NC2 shared Sara A. Shackelford · Washington, Washington, D.C.2 shared Keith Darragh · Paramus, NJ2 shared Pedro Waisman · Paramus, NJ2 shared Carrie A. Thatcher · Cottage Grove, WI2 shared Stephen C. Markscheid · Irvine, CA2 shared Asher Chanan-Khan · Jacksonville, FL2 shared

Recent filings (9)

Black Opal Ventures Fund II, L.P.Feb 2026 · 3 co-filers$75.0M Black Opal Ventures Fund I, L.P.Aug 2024 · 10 co-filers$62.7M Black Opal Ventures Fund I, L.P.Nov 2023 · 10 co-filers$15.0M Black Opal Ventures Fund I, L.P.Nov 2023 · 10 co-filers$57.5M Beaconcure Inc.Mar 2023 · 10 co-filers$14.0M Black Opal Ventures Fund I, L.P.Feb 2023 · 10 co-filers$120.0M Starton Therapeutics Inc.Feb 2022 · 29 co-filers$1.1M Beaconcure Inc.Nov 2021 · 10 co-filers$4.0M Starton Therapeutics Inc.Nov 2021 · 29 co-filers$1.1M

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