Investor · Northfield, MN

John (Jack) C. Springer

Open John in the network graph →

Filings

1

SEC Form D

Connections

5

co-filers

Capital

$571K

across filings

Active

Dec 2016

to Dec 2016

Most-connected co-filers (5)

Nancy M. Ness · PLYMOUTH, MN1 shared Richard W. Kramp · Northfield, MN1 shared Nancy Ness · Northfield, MN1 shared Bernard J. Weiss · Northfield, MN1 shared Marie Johnson, Ph.D · Northfield, MN1 shared

Recent filings (1)

AUM Cardiovascular, Inc.Dec 2016 · 9 co-filers$3.0M AUM Cardiovascular, Inc.Dec 2016 · 9 co-filers$3.0M

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