Investor · New York, NY

Marc Weiss

Open Marc in the network graph →

Filings

40

SEC Form D

Connections

33

co-filers

Capital

$346.7M

across filings

Active

Dec 2011

to Jun 2025

Most-connected co-filers (33)

See Clarification See Clarification · London, United Kingdom25 shared James P. Stableford · New York, NY8 shared Carin M. Barth · El Paso, TX7 shared Steve Pruden · Indianapolis, IN6 shared Robert G. Jakobs · Morrisville, NC6 shared Daina Slekys Trout · Los Angeles, CA5 shared Randolph M. Brown · Ottawa, Ontario, Canada4 shared Ralph Petroff · Lancaster, CA4 shared Mark Petroff · Lancaster, CA4 shared Robert Hitchner · San Diego, CA4 shared Thomas Hitchner · San Diego, CA4 shared Thomas Wood · San Diego, CA4 shared Andrew Hermann · San Diego, CA4 shared G. Haslett · New York, NY4 shared Ronald G. Watson · Seminole, FL4 shared Todd C. Hixon · Reston, VA4 shared Tom First · Boston, MA4 shared Theodore Caster · Magnolia, TX3 shared Alan Hubbard · Magnolia, TX3 shared Jeffrey D. Harder · Houston, TX3 shared Brian Bogus · Magnolia, TX3 shared Ronald E. Lichtman · Boca Raton, FL3 shared Keith Klarer · San Diego, CA2 shared Paco Sandejas · San Diego, CA2 shared

Recent filings (40)

Open Field Hammerspace SPV II LLCOct 2025 · 5 co-filers$10.0M Open Field PsiQuantum SPV I LLCOct 2025 · 5 co-filers$10.0M OFPP LLCJun 2025 · 1 co-filer Open Field Numenta SPV I LLCDec 2024 · 2 co-filers$7.0M Open Field Groq SPV I LLCDec 2024 · 2 co-filers$10.0M Open Field Hammerspace SPV I LLCDec 2024 · 2 co-filers$10.0M Open Field Groq SPV I LLCNov 2024 · 2 co-filers$10.0M OFPP LLCJun 2024 · 1 co-filer Open Field Numenta SPV I LLCJun 2024 · 1 co-filer$7.0M OFPP LLCJul 2023 · 1 co-filer Emerging Technologies Fund III LPDec 2019 Emerging Technologies Fund III LLCDec 2019 OFPP LLCOct 2019 · 1 co-filer OFPP LLCOct 2018 · 1 co-filer OFPP LLCOct 2017 · 1 co-filer ATTAQ Online, Inc.Jul 2017 · 7 co-filers$1.0M Emerging Technologies Fund II LPMar 2017 · 2 co-filers Emerging Technologies Fund II LLCMar 2017 · 2 co-filers OFPP LLCOct 2016 · 1 co-filer Arena Online, Inc.Apr 2016 · 11 co-filers$1.0M Arena Online, Inc.Apr 2016 · 11 co-filers$600K Emerging Technologies Fund II LLCMar 2016 · 2 co-filers Emerging Technologies Fund II LPMar 2016 · 2 co-filers OFPP LLCOct 2015 · 1 co-filer PHARMANETUSA INC. Doing Business As Elithea SciencesOct 2015 · 4 co-filers$20.0M

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