Investor · Sunnyvale, CA

Brian J. Flaherty

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Filings

61

SEC Form D

Connections

74

co-filers

Capital

$1.8M

across filings

Active

Mar 2016

to Sep 2025

Most-connected co-filers (74)

Ray Davis · Kirkland, WA56 shared Parag Jagdale · COPLEY, OH54 shared Matthew S. Feinstein · Los Angeles, CA54 shared Samuel B. Barnett · NORTHBROOK, IL42 shared Matthew L. Aven · NORTHBROOK, IL42 shared SBB Research Group LLC · Northbrook, IL25 shared Sandeep D. Navalgund · Northbrook, IL19 shared Brad A. Greenstein · Northbrook, IL19 shared Walter M. Kelly · Northbrook, IL17 shared Sbb Research Group Llc · Northbrook, IL11 shared Sbb Research Group Llc · Northbrook, IL11 shared Wayne Riley · Mountain View, CA11 shared Tom Waddell · Horace, ND11 shared Adam Rondeau · Horace, ND11 shared Gabriel Dean · Lowell, MI11 shared Sbb Research Group Llc · Northbrook, IL11 shared Diameter Associates LLC · New York, NY10 shared Marian M. Walters · Edison, NJ10 shared Daivid Beatty · Burlington, VT8 shared Daniel D. Burgess · Sacramento, CA8 shared Jing Zhou · Grand Cayman, Cayman Islands8 shared Robert S. Bednarz · Golden, CO8 shared Zhao Jules · CENTENNIAL, CO7 shared Peter Lyons · Woburn, MA7 shared

Recent filings (61)

SBB RESEARCH GROUP CPS FUND XI LLCSep 2025 · 13 co-filers SBB Research Group Polysight I LLCSep 2025 · 14 co-filers SBB Research Group Polysight I LLCFeb 2025 · 17 co-filers SBB RESEARCH GROUP CPS FUND XI LLCFeb 2025 · 17 co-filers SBB Research Group Polysight I LLCFeb 2024 · 17 co-filers SBB RESEARCH GROUP CPS I LLCFeb 2024 · 16 co-filers SBB RESEARCH GROUP CPS FUND XI 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 Investors IV LLCFeb 2023 · 17 co-filers SBB Research Group Polysight I 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 Thread Medical, Inc.Aug 2022 · 3 co-filers$500K SBB Research Group Investors IV LLCMar 2022 · 17 co-filers SBB Research Group Investors III LLCMar 2022 · 17 co-filers SBB Research Group Polysight I LLCMar 2022 · 17 co-filers SBB RESEARCH GROUP CPS I LLCFeb 2022 · 16 co-filers SBB RESEARCH GROUP CPS FUND XI LLCFeb 2022 · 17 co-filers SBB Research Group Investors IV LLCSep 2021 · 7 co-filers SBB Research Group Investors II LLCSep 2021 · 7 co-filers SBB Research Group Investors III LLCSep 2021 · 7 co-filers SBB Research Group Polysight I LLCSep 2021 · 7 co-filers SBB RESEARCH GROUP CPS I LLCFeb 2021 · 5 co-filers

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