Investor · New York, NY

David B. Klein

Open David in the network graph →

Filings

30

SEC Form D

Connections

149

co-filers

Capital

$133.7M

across filings

Active

Apr 2016

to Apr 2025

Most-connected co-filers (149)

Charles Stonehill · New York, NY9 shared Nicholas Schork · New York, NY8 shared Jeffrey C. Brownlow · Dallas, TX7 shared Donald R. Drew · Austin, TX7 shared Bootstrap Holdings Group Llc · Austin, TX7 shared Julius F. Tollas · The Woodlands, TX7 shared Ervin D. Cruce · Austin, TX6 shared Shahram H. Shafie · Austin, TX6 shared Daniel R. Rasmussen · BOSTON, MA5 shared John H. Walsh · Sugar Land, TX5 shared W.A. F. Lee · Austin, TX5 shared Paul R. Rodgers · Pittsburgh, PA5 shared Liquified Fossil Fuels Corporation · Austin, TX5 shared Liquified Fossil Fuels Corporation · Manhattan, KS5 shared Hamid R. Shafie · McLean, VA5 shared Bootstrap Holdings Group Llc · Austin, TX4 shared Crescendo Advisors II, LLC · New York, NY4 shared Randall B. Stanicky · New York, NY4 shared Brian Hirsch · NEW YORK, NY4 shared Victor Gao · New York, NY4 shared Muzammil B. Mansuri · New York, NY4 shared Cris B. De Luca · New York, NY4 shared Alex B. Zisson · New York, NY4 shared Jeffrey B. Berkowitz · New York, NY4 shared

Recent filings (30)

Click Therapeutics, Inc.Apr 2025 · 19 co-filers$48.6M Click Therapeutics, Inc.Nov 2024 · 10 co-filers$3.0M Click Therapeutics, Inc.Nov 2024 · 11 co-filers$8.3M DMB PEST LLCJul 2024 · 1 co-filer$250K DMB PEST LLCJul 2024 · 1 co-filer$250K DCP Partners LLCMay 2023 · 1 co-filer$300K DCP Partners LLCMay 2023 · 1 co-filer$300K Click Therapeutics, Inc.Nov 2021 · 10 co-filers$52.1M Click Therapeutics, Inc.Jun 2018 · 7 co-filers$19.3M DHK Storage, LLCOct 2017 · 1 co-filer$2.6M DHK Storage, LLCOct 2017 · 1 co-filer$2.6M Click Therapeutics, Inc.Apr 2017 · 9 co-filers$5.0M GREEN SOURCE HOLDINGS LLCMar 2017 · 20 co-filers$38.1M Avalon Health Services, LLCFeb 2017 · 24 co-filers$29.3M CommonBond, Inc.Jan 2017 · 26 co-filers$37.5M GREEN SOURCE HOLDINGS LLCNov 2016 · 19 co-filers$33.0M Click Therapeutics, Inc.Apr 2016 · 9 co-filers$1.5M GREEN SOURCE HOLDINGS LLCNov 2015 · 19 co-filers$20.5M CommonBond, Inc.Sep 2015 · 17 co-filers$36.5M Click Therapeutics, Inc.Aug 2015 · 9 co-filers$3.0M CommonBond, Inc.Mar 2015 · 7 co-filers$5.5M LATITUDE 360, INC.Dec 2014 · 18 co-filers$4.0M GREEN SOURCE HOLDINGS LLCNov 2014 · 19 co-filers$15.0M Click Therapeutics, Inc.Nov 2014 · 9 co-filers$3.1M GREEN SOURCE HOLDINGS LLCOct 2014 · 22 co-filers$7.9M

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