Investor · Tokyo, M0

Masaki Arai

Open Masaki in the network graph →

Filings

11

SEC Form D

Connections

107

co-filers

Capital

$45.5M

across filings

Active

Nov 2022

to Aug 2025

Most-connected co-filers (107)

Ralf Stoffels · Tokyo, M07 shared Katsuhiko Tsunetsugu · Tokyo, M05 shared Yasushi Yoshimoto · Tokyo, M05 shared Juan-Pablo Mas · Valencia, CA4 shared Nicole M. Scott · San Diego, CA4 shared John Sullivan · New York, NY3 shared Ronald Levy · MALIBU, CA3 shared Daniel Izzo · Old Greenwich, CT3 shared Anne M. Leadbetter · Grand Cayman, Cayman Islands3 shared Jozh Bibera · Salem, OR3 shared Michael A. Liss · San Antonio, TX3 shared Robert Duggan · Palo Alto, CA3 shared Stewart Martin · Williston, VT3 shared Claudia Meer · Williston, VT3 shared Andrew Matthy · Williston, VT3 shared Frederick Myrick, Jr · Williston, VT3 shared Holly Ruxin · MALIBU, CA3 shared Jeffrey Peck · Williston, VT3 shared Asuna P. Gilfoyle · New York, NY3 shared John A. Coelho · La Jolla, CA2 shared Shili Zhan · Annandale, VA2 shared Dave Wolcott · Sarasota, FL2 shared Martin Steyn · Grand Cayman, Cayman Islands2 shared Toshiaki Adachi · Tokyo, M02 shared

Recent filings (11)

Docuverus, Inc.Nov 2025 · 9 co-filers$500K ADVANTEST CORPAug 2025 · 100 co-filers ADVANTEST CORPAug 2025 · 100 co-filers Docuverus, Inc.Sep 2024 · 7 co-filers$1.9M ADVANTEST CORPSep 2024 · 97 co-filers$163.5M ADVANTEST CORPSep 2024 · 97 co-filers$163.5M Cybele Microbiome, Inc.Mar 2024 · 2 co-filers$500K ISUN, INC.Dec 2023 · 17 co-filers$3.0M ISUN, INC.Dec 2023 · 17 co-filers$631K Cybele Microbiome, Inc.Feb 2023 · 2 co-filers$877 ISUN, INC.Nov 2022 · 19 co-filers$25.0M Cybele Microbiome, Inc.Nov 2022 · 2 co-filers$1.0M Cybele Microbiome, Inc.Nov 2022 · 2 co-filers$894K

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