Investor · San Diego, CA

Mark Spring

Open Mark in the network graph →

Filings

8

SEC Form D

Connections

28

co-filers

Capital

$155.0M

across filings

Active

Nov 2017

to Nov 2022

Most-connected co-filers (28)

Bill S. Wolfkiel · Boulder, CO4 shared Anand Jain · Walnut, CA4 shared Prashanth Prakash · Walnut, CA4 shared Sunil Thomas · Walnut, CA4 shared Elizabeth Williams · Yonkers, NY4 shared Jeffrey Mayer · New York, NY4 shared Greg D. Gordon · New York, NY4 shared Lawrence D. Helson · Center Valley, PA4 shared Mohit Bhatnagar · Walnut, CA4 shared James R. Granberry · Austin, TX4 shared Arthur P. Bollon, Ph.D · Quakertown, PA4 shared Michael Zelnik · Tampa, FL2 shared Brett Lund · San Diego, CA2 shared Joseph Limber · San Diego, CA2 shared Juan Estruch · San Diego, CA2 shared Francesco A. Tallarico · Toronto, Ontario, Canada2 shared Brad Eckenweiler · Irvine, CA2 shared Samuel G. Spears · Winter Park, FL2 shared John Fallon · New York, NY2 shared Alan S. Tooker · Greenwich, CT2 shared Jeffrey T. Leighton · Fargo, ND2 shared Brian O. Hagen · Fargo, ND2 shared Darren Marble · Beverly Hills, CA2 shared David Aronowitz · Toronto, Ontario, Canada2 shared

Recent filings (8)

WizRocket Inc.Nov 2022 · 11 co-filers$105.0M WizRocket Inc.Nov 2022 · 11 co-filers$35.0M Buddy Pegs, LLCJul 2019 · 3 co-filers$200K WizRocket Inc.Apr 2019 · 11 co-filers$26.0M Secura Bio, Inc.Apr 2019 · 11 co-filers$90.0M Secura Bio Holdings, Inc.Mar 2019 · 13 co-filers$145.0M Buddy Pegs, LLCNov 2017 · 5 co-filers$200K WizRocket Inc.Nov 2017 · 11 co-filers$8.0M

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