Investor · San Francisco, CA

J Zachary Stein

Open J in the network graph →

Filings

3

SEC Form D

Connections

3

co-filers

Capital

$297.3M

across filings

Active

Jun 2022

to Oct 2025

Most-connected co-filers (3)

Christina Cacioppo · San Francisco, CA2 shared Andrew Reed · San Francisco, CA2 shared Justin Wenig · New York, NY1 shared

Recent filings (3)

Starbridge.ai, Inc.Oct 2025 · 3 co-filers$44.9M Starbridge.ai, Inc.Oct 2025 · 3 co-filers$44.9M Vanta Inc.Aug 2023 · 5 co-filers$150.1M Vanta Inc.Aug 2023 · 5 co-filers$150.1M Vanta Inc.Jun 2022 · 5 co-filers$150.1M Vanta Inc.Jun 2022 · 5 co-filers$150.1M

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