Investor · Madison, WI

John Warren, O.D

Open John in the network graph →

Filings

6

SEC Form D

Connections

31

co-filers

Capital

—

across filings

Active

Dec 2008

to Jul 2025

Most-connected co-filers (31)

James Schneider · Minneapolis, MN6 shared Scott A. Jens, O.D · Madison, WI6 shared Bruce J. Richards · New York, NY4 shared Alicia Derrah · Chicago, IL4 shared Andrew Stewart · Chicago, IL4 shared James S. Johnson · BLOOMINGTON, MN2 shared Jeffrey D. Shellberg · BLOOMINGTON, MN2 shared Clifford B. Lepage, Iii · West Chester, PA2 shared David B. Juran · MINNEAPOLIS, MN2 shared Lisa Brezonik · St. Louis Park, MN2 shared Lisa Salazar · St. Louis Park, MN2 shared David Volk · St. Louis Park, MN2 shared Nick Place · St. Louis Park, MN2 shared Mary Jayne Crocker · St. Louis Park, MN2 shared Douglas Parish · St. Louis Park, MN2 shared Joe Chybowski · St. Louis Park, MN2 shared David Cremin · Los Angeles, CA2 shared Jeffrey Samberg · Irvington, NY2 shared Richard Breslow · Stamford, CT2 shared Bluford Putnam · Stamford, CT2 shared First Light GP, LLC · San Francisco, CA2 shared Andrew Weinreich · New York, NY2 shared Jeremy Levy · New York, NY2 shared James Citron · Venice, CA2 shared

Recent filings (6)

Bridgewater Bancshares IncJul 2025 · 41 co-filers$80.0M Bridgewater Bancshares IncJul 2025 · 41 co-filers$80.0M Health Innovation Technologies IncNov 2011 · 6 co-filers$600K Health Innovation Technologies IncMay 2011 · 5 co-filers$810K Health Innovation Technologies IncDec 2009 · 5 co-filers$750K Health Innovation Technologies IncDec 2008 · 5 co-filers$750K

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