Investor · Rockford, IL
David Diamond
Open David in the network graph →Filings
17
SEC Form D
Connections
52
co-filers
Capital
$14.1M
across filings
Active
Apr 2023
to Dec 2025
Most-connected co-filers (52)
Brendan Bader · Prosper, TX4 sharedPeter Holstein · Northbrook, IL2 sharedCryptx Labs LLC · San Juan, Puerto Rico2 sharedDan S. Mcdermott · Boston, MA2 sharedMiddleton Open Season Fund Ii GP LLC · GLENCOE, IL2 sharedJohn F. Buoymaster · San Francisco, CA2 sharedMark E. Mckee · San Francisco, CA2 sharedMatthew R. Barger · San Francisco, CA2 sharedKathryn A. Hall · San Francisco, CA2 sharedNicholas Carlson · Prosper, TX2 sharedJustin P. Wender · New York, NY2 sharedJames T. Armstrong · Santa Monica, CA2 sharedNoah Swank · Wichita, KS2 sharedAlfred Eisaian · New York, NY2 sharedHunter T. Lamunyon · WICHITA, KS2 sharedCharles Stovall · Thorton, CO2 sharedYongping Wang · Thorton, CO2 sharedSlava Tretyakov · Thorton, CO2 sharedMatthew Jaffee · GLENCOE, IL2 sharedMatthew Schneider · GLENCOE, IL2 sharedPeter Holstein · GLENCOE, IL2 sharedChristian S. Mumenthaler · New York, NY2 sharedMatt Huang · New York, NY2 sharedWilliard E. Lynn · San Francisco, CA2 shared
Recent filings (17)
421 Yellowstone LLCDec 2025 · 2 co-filers$7.2M421 Yellowstone LLCDec 2025 · 2 co-filers$7.2MMPE University LLCDec 2025 · 2 co-filers$6.8MMPE University LLCDec 2025 · 2 co-filers$6.8MMiddleton Open Season Fund II-A LPSep 2025 · 10 co-filers$50.0MMiddleton Open Season Fund II LPSep 2025 · 10 co-filers$50.0MMonona Pines 2 LLCJun 2025 · 4 co-filers$5.3MMonona Pines 2 LLCJun 2025 · 4 co-filers$5.3MMonona Pines 2 LLCJun 2025 · 4 co-filers$5.3MNavflex Inc.Sep 2024 · 10 co-filers$15.0MWEALTHUNION XI A SERIES OF WEALTHUNION VENTURES LLCApr 2023 · 2 co-filers$518KWEALTHUNION XI A SERIES OF WEALTHUNION VENTURES LLCApr 2023 · 2 co-filers$518KNavflex Inc.Apr 2023 · 8 co-filers$2.0MStoreport Retail Services, Inc.Aug 2014 · 3 co-filers$350KdELiAs, Inc.Feb 2014 · 17 co-filers$44.1MdELiAs, Inc.Feb 2014 · 17 co-filers$44.1MStoreport Retail Services, Inc.May 2013 · 5 co-filers$500KStoreport Retail Services, Inc.May 2013 · 5 co-filers$500KINTUUN SYSTEMS LLCNov 2011 · 3 co-filers$1.3MINTUUN SYSTEMS LLCNov 2011 · 3 co-filers$1.3MHCP PRIVATE EQUITY FUND IV LPJul 2011 · 9 co-filersTUUN HEALTH LLCAug 2009 · 1 co-filer$2.0MINTUUN SYSTEMS LLCJul 2009 · 1 co-filer$500KHCP PRIVATE EQUITY FUND IV LPJun 2009 · 11 co-filers$31.2M
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See David in the interactive graph →