Investor · St. Petersburg, FL

Mark D. Keller

Open Mark in the network graph →

Filings

7

SEC Form D

Connections

47

co-filers

Capital

$2.6M

across filings

Active

Jul 2021

to Jul 2025

Most-connected co-filers (47)

D. F. Wolfe · St. Petersburg, FL5 shared Thomas G. Staudt · St. Petersburg, FL5 shared Paul G. Wilson · St. Petersburg, FL3 shared David N. Ross · Toronto, Ontario, Canada3 shared Stuart N. Waugh · Toronto, Ontario, Canada3 shared Jeffrey N. Pentland · Toronto, Ontario, Canada3 shared Olivier N. Laganiere · Toronto, Ontario, Canada3 shared Katherine N. Gurney · Toronto, Ontario, Canada3 shared Nadim N. Vasanji · Toronto, Ontario, Canada3 shared Ram M. Neelapu · BRENTWOOD, TN3 shared Rajesh R. Aggarwhal · BRENTWOOD, TN3 shared Robert W. Burnett · Franklin, TN3 shared Marlin F. Waters · Vestavia, AL3 shared John S. Hicks Jr · Nashville, TN3 shared Daniel Ripma · Long Island City, NY3 shared Ark Investment Management Llc · New York, NY3 shared Ark Investment Management Llc · St. Petersburg, FL3 shared Catherine D. Wood · St. Petersburg, FL3 shared Ark Investment Management Llc · New York, NY3 shared Kellen D. Carter · St. Petersburg, FL3 shared Andrew J. Aitken · London, United Kingdom2 shared Matthew Jacobs · Beverly Hills, CA2 shared Ross Iverson · Vail, CO2 shared Gregory S. Bennett · Grand Cayman, Cayman Islands2 shared

Recent filings (7)

ARK Venture Fund Holdings LLCJul 2025 · 20 co-filers ARK Venture Fund Holdings LLCNov 2022 · 20 co-filers ARK Venture Fund Holdings (Cayman) LPNov 2022 · 23 co-filers 137 VENTURES VI, LPJun 2022 · 4 co-filers Cross Ocean USD ESS Fund IV Open L.P.Jul 2021 · 20 co-filers$1.0B Cross Ocean USD ESS Fund IV Closed L.P.Jul 2021 · 20 co-filers$1.0B 137 AFFILIATES V, LPJul 2021 · 4 co-filers

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