Investor · Tokyo, M0

Sayaka Sumida

Open Sayaka in the network graph →

Filings

9

SEC Form D

Connections

158

co-filers

Capital

$55.9M

across filings

Active

Jan 2021

to Aug 2025

Most-connected co-filers (158)

Kouichi Nanba · Tokyo, M07 shared Koichi Tsukui · Tokyo, M07 shared Keith Hardwick · Tokyo, M07 shared Ricky Sim · Tokyo, M07 shared Isao Sasaki · Tokyo, M05 shared Naruo Tanaka · Tokyo, M05 shared Samuel B. Silverman · San Juan, Puerto Rico4 shared Dave Wolcott · Sarasota, FL4 shared Sanjeev Mohan · Tokyo, M04 shared Richard Junger · Tokyo, M04 shared Nicolas Ibanez · NEW YORK, NY4 shared Michael Kamis · Calgary, Alberta, Canada4 shared Mark Dumas · Norfolk, VA4 shared Michael B. Schoenfeld · San Juan, Puerto Rico4 shared Toshiaki Adachi · Tokyo, M04 shared Makoto Nakahara · Tokyo, M04 shared August J. Peterson · Austin, TX4 shared Martin Steyn · Grand Cayman, Cayman Islands4 shared John A. Coelho · La Jolla, CA4 shared Brian A. Borton · La Jolla, CA4 shared Robert Shattuck · Holladay, UT4 shared Masayuki Suzuki · Tokyo, M04 shared E. D. Bell · Greensboro, NC4 shared Shili Zhan · Annandale, VA4 shared

Recent filings (9)

ADVANTEST CORPAug 2025 · 100 co-filers ADVANTEST CORPSep 2024 · 97 co-filers$163.5M Venrock Associates X, L.P.Jan 2024 · 18 co-filers$650.0M ADVANTEST CORPJun 2023 · 83 co-filers$115.3M ADVANTEST CORPJun 2022 · 83 co-filers$61.4M InflammX Therapeutics, Inc.May 2022 · 22 co-filers InflammX Therapeutics, Inc.Nov 2021 · 20 co-filers$8.4M Venrock Associates IX, L.P.Jan 2021 · 27 co-filers$423.4M InflammX Therapeutics, Inc.Jan 2021 · 17 co-filers$7.0M

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