Investor · NORTHBROOK, IL

Samuel B. Barnett

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Filings

88

SEC Form D

Connections

105

co-filers

Capital

$7.8B

across filings

Active

Sep 2014

to Sep 2025

Most-connected co-filers (105)

Matthew L. Aven · NORTHBROOK, IL72 shared Parag Jagdale · COPLEY, OH45 shared Ray Davis · Kirkland, WA45 shared Brian J. Flaherty · Sunnyvale, CA42 shared Matthew S. Feinstein · Los Angeles, CA42 shared Brad A. Greenstein · Northbrook, IL38 shared Sandeep D. Navalgund · Northbrook, IL37 shared Walter M. Kelly · Northbrook, IL35 shared Sbb Research Group Llc · Northbrook, IL30 shared Adam Rondeau · Horace, ND30 shared Sbb Research Group Llc · Northbrook, IL30 shared Sbb Research Group Llc · Northbrook, IL30 shared Wayne Riley · Mountain View, CA30 shared Tom Waddell · Horace, ND29 shared Gabriel Dean · Lowell, MI29 shared Marian M. Walters · Edison, NJ28 shared Diameter Associates LLC · New York, NY28 shared Arkadi A. Kuhlmann · Jacksonville, FL17 shared Sean F. Nicolosi · Boston, MA17 shared SBB Research Group LLC · Northbrook, IL15 shared Brandon Bertrang · Ann Arbor, MI15 shared John Claytor · Village of Golf, FL15 shared David B. Goone · New York, NY11 shared Remi Ducrocq · New York, NY11 shared

Recent filings (88)

SBB Research Group Polysight III, LLCSep 2025 · 14 co-filers SBB RESEARCH GROUP CPS FUND XI LLCSep 2025 · 13 co-filers SBB Research Group Polysight I LLCSep 2025 · 14 co-filers SBB Research Group Investors I LLCAug 2025 · 14 co-filers SBB Research Group Polysight III, LLCFeb 2025 · 17 co-filers SBB Research Group Polysight Odin LLCFeb 2025 · 17 co-filers SBB RESEARCH GROUP POLYSIGHT II LLCFeb 2025 · 17 co-filers SBB RESEARCH GROUP CPS FUND XI LLCFeb 2025 · 17 co-filers SBB Research Group Polysight I LLCFeb 2025 · 17 co-filers SBB RESEARCH GROUP CPS FUND XI LLCFeb 2024 · 17 co-filers SBB Research Group Polysight I LLCFeb 2024 · 17 co-filers SBB Research Group Investors IV LLCFeb 2024 · 17 co-filers SBB Research Group Investors III LLCFeb 2024 · 17 co-filers SBB RESEARCH GROUP CPS I LLCFeb 2024 · 16 co-filers SBB Research Group Investors II LLCFeb 2024 · 17 co-filers SBB Research Group Polysight III, LLCFeb 2024 · 17 co-filers SBB RESEARCH GROUP POLYSIGHT II LLCFeb 2024 · 17 co-filers SBB Research Group Polysight Odin LLCFeb 2024 · 17 co-filers SBB Research Group Polysight Odin LLCAug 2023 · 16 co-filers SBB Research Group Polysight III, LLCFeb 2023 · 17 co-filers SBB Research Group Investors II LLCFeb 2023 · 17 co-filers SBB Research Group Investors IV LLCFeb 2023 · 17 co-filers SBB RESEARCH GROUP CPS FUND XI LLCFeb 2023 · 17 co-filers SBB RESEARCH GROUP CPS I LLCFeb 2023 · 16 co-filers SBB Research Group Investors III LLCFeb 2023 · 17 co-filers

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