Investor · Naples, FL

Charles Hallberg

Open Charles in the network graph →

Filings

2

SEC Form D

Connections

8

co-filers

Capital

$5.2M

across filings

Active

Sep 2009

to Mar 2025

Most-connected co-filers (8)

James J. Hummer · Woodridge, IL1 shared Geoffrey B. Thrope · Cleveland, OH1 shared Bill Sanford · Cleveland, OH1 shared Gregory Okeeffe · Naples, FL1 shared Tyler Hardt · Naples, FL1 shared Michael Burke · Alpine, UT1 shared Colin Scully · Cleveland, OH1 shared A. R. Dalton · Cleveland, OH1 shared

Recent filings (2)

Airotone, Inc.Mar 2025 · 5 co-filers$6.9M Airotone, Inc.Mar 2025 · 5 co-filers$6.9M Medical Growth Fund, LLCSep 2009 · 8 co-filers Medical Growth Fund, LLCSep 2009 · 8 co-filers

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