Investor · Scottsdale, AZ

David Upjohn

Open David in the network graph →

Filings

8

SEC Form D

Connections

59

co-filers

Capital

$18.6M

across filings

Active

Apr 2021

to Sep 2025

Most-connected co-filers (59)

Chris Grilli · Scottsdale, AZ8 shared James Miller · Wellesley, MA8 shared Jonathan G. Tetrault · Toronto, Ontario, Canada4 shared Michael C. Adornetto · Sea Girt, NJ4 shared Adam Vigna · Toronto, Ontario, Canada4 shared Texas Gustavson · Fountain Valley, CA4 shared Samuel G. Robinson · New York, NY4 shared Mark T. Maruszewski · New York, NY4 shared Thomas J. Corra · Needham, MA4 shared Jason I. Ment · New York, NY4 shared Dominique G. Perron · Toronto, Ontario, Canada4 shared Thomas A. Bradley · New York, NY4 shared Stephen C. Hostetler · Charlotte, NC4 shared Jason M. Brass · Minneapolis, MN4 shared Dr. Phares Noel · Detroit, MI2 shared Dr. Tonya Matthews · Detroit, MI2 shared Kenneth Kelly · Detroit, MI2 shared Nick Adamo · Boston, MA2 shared Derron Sanders · Detroit, MI2 shared James Dolce · SUNNYVALE, CA2 shared Ping Li · Boston, MA2 shared Kevin Mahaffey · Boston, MA2 shared Dimitrius Hutcherson · Detroit, MI2 shared Kevin Hartz · Boston, MA2 shared

Recent filings (8)

RX Mapper, LLCSep 2025 · 8 co-filers$9.9M RX Mapper, LLCSep 2024 · 8 co-filers$9.9M RX Mapper, LLCSep 2023 · 8 co-filers$6.0M RX Mapper, LLCAug 2022 · 8 co-filers$5.0M Lookout, Inc.Apr 2022 · 26 co-filers$46.8M FIRST INDEPENDENCE CORPJul 2021 · 35 co-filers$5.0M FIRST INDEPENDENCE CORPApr 2021 · 35 co-filers$8.1M Lookout, Inc.Apr 2021 · 26 co-filers$46.8M

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