Investor · Saint Paul, MN

Karl Holub

Open Karl in the network graph →

Filings

8

SEC Form D

Connections

45

co-filers

Capital

$1.0M

across filings

Active

Aug 2012

to Jan 2024

Most-connected co-filers (45)

Peter J. Busalacchi · San Diego, CA3 shared Keith Kallmes · Rochester, MN3 shared Scott Sherman · Miami, FL3 shared Ari Sasson · Miami, FL3 shared William Bien · Menlo Park, CA2 shared J. A. Y?Pez · San Mateo, CA2 shared Ralph Passarella · Alexandria, VA2 shared Joseph S. Caruso · Philadelphia, PA2 shared Rohit Syal · Chicago, IL2 shared Ed Monce · San Diego, CA2 shared Bradford Heming · San Antonio, TX2 shared Lange Allen · San Antonio, TX2 shared Laurence Bastien · San Antonio, TX2 shared Jason Hans · San Antonio, TX2 shared Kevin Kallmes · Rochester, MN2 shared Lenard W. Marcus · Princeton, NJ2 shared Stuart Tapper · Minnetonka, MN2 shared Moses Kusasira · Las Vegas, NV2 shared Spencer N. Boggess · Jupiter, FL2 shared Thomas L. Vander Schaaff · PRINCETON, NJ2 shared Sukemasa Kabayama · Mountain View, CA2 shared John Harasin · Austin, TX2 shared David Moritz · DUBLIN, OH2 shared Leonard J. O'Donnell · SAN ANTONIO, TX2 shared

Recent filings (8)

Nested Knowledge, Inc.Jan 2026 · 4 co-filers$4.3M Nested Knowledge, Inc.Jan 2024 · 14 co-filers$1.5M Nested Knowledge, Inc.Feb 2023 · 5 co-filers$700K Housing Platform REIT 1, LLCJan 2022 · 17 co-filers$125K Western Alaska Minerals Corp.Nov 2021 · 16 co-filers$18.5M MPLD II REIT DNov 2021 · 17 co-filers$125K Western Alaska Copper & Gold CoSep 2012 · 7 co-filers$800K Western Alaska Copper & Gold CoAug 2012 · 7 co-filers$800K

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