Investor · Minneapolis, MN

Mark Christopherson

Open Mark in the network graph →

Filings

3

SEC Form D

Connections

22

co-filers

Capital

$7.5M

across filings

Active

Sep 2013

to Jan 2026

Most-connected co-filers (22)

Glen L. Nelson · Maple Grove, MN1 shared John W. Murray · NEWPORT BEACH, CA1 shared Richard H. Clarida · NEWPORT BEACH, CA1 shared Scott C. Lentz · Miami, FL1 shared Derek Dubner · Boca Raton, FL1 shared Mauricio Gruener · Miami, FL1 shared Axonic Systematic Arbitrage GP LLC · New York, NY1 shared Austin Cohen · New York, NY1 shared Michael Hurley · Minneapolis, MN1 shared Howard Levin · Emeryville, CA1 shared Ben N. Scott · Austin, TX1 shared Sami Hamade · San Francisco, CA1 shared Curtis Mo · EAST PALO ALTO, CA1 shared David Neustaedter · Sunnyvale, CA1 shared Paul Laviolette · RALEIGH, NC1 shared Daniel Brauser · New York, NY1 shared Stephen A. Block · San Diego, CA1 shared J. Robert Paulson · St. Paul, MN1 shared Greg Lawrence · WORCESTER, MA1 shared Peter A. Cole · Cocoran, MN1 shared John A. Peterson · Cocoran, MN1 shared Robert A. Korljan · Cocoran, MN1 shared

Recent filings (3)

Bone Foam, Inc.Jan 2026 · 3 co-filers$350K Lunair Medical, Inc.Sep 2025 · 9 co-filers$12.5M Lunair Medical, Inc.Sep 2025 · 9 co-filers$12.5M NXTHERA INCSep 2013 · 16 co-filers$13.2M NXTHERA INCSep 2013 · 16 co-filers$13.2M

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