Investor · Gaithersburg, MD

David T. Lubner

Open David in the network graph →

Filings

19

SEC Form D

Connections

128

co-filers

Capital

$345.0M

across filings

Active

Aug 2019

to Jul 2025

Most-connected co-filers (128)

Rami Elghandour · Gaithersburg, MD12 shared Derek T. Yoon · Gaithersburg, MD8 shared Edwin Kania · LOS ANGELES, CA7 shared Drew Anwyll · Toronto, Ontario, Canada7 shared Arne Brock-Utne · Walnut Creek, CA7 shared Alan Young · Detroit, MI6 shared Kenneth V. Deregt · New York, NY6 shared Gino Santini · Boston, MA6 shared Alan E. Walts · Cambridge, MA6 shared Robert M. Armstrong, Ph.D · Cambridge, MA5 shared Phillip Donnelly · Las Vegas, NV4 shared Jill Carroll · Gaithersburg, MD4 shared Warren A. Heffelfinger · Lafayette, CA4 shared James Donnelly · Las Vegas, NV4 shared Austin Thornberry · VANCOUVER, British Columbia, Canada4 shared Mark Reynoso · LOS ANGELES, CA4 shared Jake H. Kalpakian · VANCOUVER, British Columbia, Canada4 shared Quentin Yarie · Toronto, Ontario, Canada4 shared Damia M. Tormo, Ph.D · Cambridge, MA4 shared Timothy Choi · Orange, CA4 shared Ali K. Behbahani · Chevy Chase, MD4 shared Joseph M. Lobacki · Cambridge, MA4 shared Thomas E. Schodorf · Miami, FL4 shared James P. Key · Pelham, AL4 shared

Recent filings (19)

Artax Biopharma, Inc.Jul 2025 · 25 co-filers$11.0M Artax Biopharma, Inc.Aug 2024 · 22 co-filers$8.0M Arcellx, Inc.Feb 2023 · 23 co-filers$100.0M Artax Biopharma, Inc.May 2022 · 20 co-filers$25.8M Arcellx, Inc.Mar 2022 · 21 co-filers$10.0M GUARANTY BANCSHARES INC /TX/Mar 2022 · 34 co-filers$35.0M Artax Biopharma, Inc.Jan 2022 · 14 co-filers$23.2M Arcellx, Inc.Jul 2021 · 23 co-filers$120.0M Arcellx, Inc.Apr 2021 · 23 co-filers$115.0M Artax Biopharma, Inc.Feb 2021 · 14 co-filers$3.0M Dyne Therapeutics, Inc.Aug 2020 · 21 co-filers$115.7M Dyne Therapeutics, Inc.Aug 2020 · 21 co-filers$115.7M GUARANTY BANCSHARES INC /TX/May 2020 · 34 co-filers$10.0M Artax Biopharma, Inc.May 2020 · 17 co-filers$2.0M Artax Biopharma, Inc.Aug 2019 · 8 co-filers$3.5M TETRAPHASE PHARMACEUTICALS INCMay 2010 · 14 co-filers$45.0M Mediphase Venture Partners II (Select Fund) Limited PartnershipApr 2010 · 5 co-filers$2.0M FGA Media, Inc.Oct 2009 · 6 co-filers TETRAPHASE PHARMACEUTICALS INCSep 2009 · 13 co-filers$29.6M FGA Media, Inc.Jul 2009 · 6 co-filers$1.0M

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