Investor · Greenwood, IN

Brian J. Hartman

Open Brian in the network graph →

Filings

10

SEC Form D

Connections

45

co-filers

Capital

$1.7M

across filings

Active

Apr 2023

to Dec 2025

Most-connected co-filers (45)

Evan M. Hartman · Greenwood, IN5 shared Evangelos J. Perros · NEW YORK, NY3 shared Bryan B. Sweeney · AUSTIN, TX3 shared Cushing K. Laura · Newport Beach, CA3 shared Catherine Valeri · Hamilton, Bermuda3 shared Fifth Horizon, LLC · Littleton, CO3 shared Trent Ambler · Littleton, CO3 shared Julie Mcdonald · Hamilton, Bermuda3 shared Frank L. Cassidy · San Francisco, CA2 shared John Gogol · London, United Kingdom2 shared Scott Lien · Seattle, WA2 shared Jeff L. Malo · New York, NY2 shared Charles E. Peter · Cos Cob, CT2 shared Devin Grief · Miami, FL2 shared Jack Lee · Conroe, TX2 shared Peter Crocco · Melville, NY2 shared Scott A. Finegan · CHICAGO, IL2 shared Sean Chermer · Sheridan, WY2 shared Bradley Bennett · Sheridan, WY2 shared Steven Woodruff · Sheridan, WY2 shared Merrill Stillwell · Littleton, CO2 shared Peter L. Cosica · New York, NY2 shared Chad L. Thiel · Costa Mesa, CA2 shared Adam L. Steinberger · San Mateo, CA2 shared

Recent filings (10)

Humera, Inc.Dec 2025 · 5 co-filers$5K Humera, Inc.Dec 2025 · 5 co-filers$5K Humera, Inc.Nov 2025 · 5 co-filers$975K Humera, Inc.Nov 2025 · 5 co-filers$975K Humera, Inc.Aug 2025 · 5 co-filers$775K Humera, Inc.Aug 2025 · 5 co-filers$775K MD MANAGEMENT LLCApr 2025 · 31 co-filers MD INVESTMENT LLCApr 2025 · 31 co-filers FIFTH HORIZON FUND, LLCMay 2024 · 8 co-filers PFC KC 2023 LLCMay 2023 · 8 co-filers$10.0M FIFTH HORIZON FUND, LLCMay 2023 · 8 co-filers PFC KC 2023 LLCMay 2023 · 8 co-filers$10.0M FIFTH HORIZON FUND, LLCApr 2023 · 5 co-filers

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