Investor · Winter Park, FL

Mark Feinberg

Open Mark in the network graph →

Filings

3

SEC Form D

Connections

3

co-filers

Capital

$3.5M

across filings

Active

Nov 2024

to Jan 2026

Most-connected co-filers (3)

Wilson Patton · Los Altos, CA3 shared L. Wang · Los Altos, CA1 shared Gregory Meerbaum · Winter Park, FL1 shared

Recent filings (3)

National Quality Systems, Inc.Jan 2026 · 1 co-filer$5.0M National Quality Systems, Inc.Jun 2025 · 1 co-filer$2.0M National Quality Systems, Inc.Nov 2024 · 3 co-filers$3.4M

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