Investor · Venice, CA

Stephen Marcus

Open Stephen in the network graph →

Filings

5

SEC Form D

Connections

7

co-filers

Capital

$299.9M

across filings

Active

Sep 2020

to Oct 2025

Most-connected co-filers (7)

William Coffield · Venice, CA5 shared Riot Ventures Fund Ii Gp, Llc · Venice, CA3 shared Riot Ventures Fund Ii Gp, Llc · Venice, CA3 shared Riot Ventures Fund Iii Gp, Llc · Venice, CA2 shared Riot Ventures Fund Iii Gp, Llc · Venice, CA2 shared Riot Ventures Fund Iii Gp, Llc · Venice, CA2 shared Nicholas H. Burchard · Venice, CA1 shared

Recent filings (5)

Riot Ventures Fund III, L.P.Oct 2025 · 4 co-filers$160.0M Riot Ventures Fund III, L.P.Oct 2024 · 5 co-filers$150.0M Riot Ventures Fund II, L.P.Mar 2022 · 3 co-filers$86.4M Riot Ventures Fund II, L.P.Sep 2021 · 3 co-filers$75.0M Riot Ventures Fund II, L.P.Sep 2020 · 3 co-filers$75.0M

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