Investor · Boston, MA

Nathan Sigworth

Open Nathan in the network graph →

Filings

16

SEC Form D

Connections

78

co-filers

Capital

$6.3M

across filings

Active

Dec 2017

to Mar 2020

Most-connected co-filers (78)

Robert J. Molinari · MOHAMMAD PUR, K77 shared Barath S. Subramanian · Boston, MA6 shared Peter Rice · Boston, MA6 shared Julia S. Bernstein · Boston, MA6 shared Armen S. Solakhyan · Boston, MA5 shared Jay Kunin · Lebanon, NH4 shared Nick M. Hughes · London, United Kingdom3 shared Shawn J. Wallace · VANCOUVER, British Columbia, Canada3 shared Alan Cole · Deerfield, IL3 shared Jake M. Thomson · LONDON, United Kingdom3 shared Mitchell Kitayama · GLENDALE, CA3 shared Kenneth Sim · GLENDALE, CA3 shared Thomas Lam · GLENDALE, CA3 shared Gary Augusta · GLENDALE, CA3 shared Keiji W. Hattori · New York, NY3 shared Anne E. Gudefin · LONDON, United Kingdom3 shared Jason N. Wong · San Francisco, CA3 shared Li Yu · GLENDALE, CA3 shared Hing Ang · GLENDALE, CA3 shared Derek Ohly · WALTHAM, MA3 shared Tommy M. Gendal · Newport Beach, CA3 shared Albert Young · GLENDALE, CA3 shared Christopher Petrossian · Newport Beach, CA3 shared Michael Eng · GLENDALE, CA3 shared

Recent filings (16)

PharmaCCX, Inc.Jul 2023 · 9 co-filers$5.4M PharmaCCX, Inc.Jul 2023 · 9 co-filers$5.4M PharmaCCX, Inc.Mar 2020 · 14 co-filers$7.0M PharmaCCX, Inc.Nov 2018 · 14 co-filers$4.1M Apollo Medical Holdings, Inc.Jan 2018 · 35 co-filers$1.3M Apollo Medical Holdings, Inc.Jan 2018 · 35 co-filers$200K Apollo Medical Holdings, Inc.Dec 2017 · 35 co-filers$5.2M PharmaSecure, Inc.Mar 2013 · 7 co-filers$1.0M PharmaSecure, Inc.Aug 2011 · 8 co-filers$6.0M US INFRASTRUCTURE HOLDINGS, LLCJun 2011 · 11 co-filers$4.0M US INFRASTRUCTURE HOLDINGS, LLCJun 2011 · 11 co-filers US INFRASTRUCTURE HOLDINGS, LLCJun 2011 · 10 co-filers$96.0M BioKier, Inc.Oct 2009 · 5 co-filers$250K PharmaSecure, Inc.Oct 2009 · 11 co-filers$2.2M BioKier, Inc.Oct 2009 · 5 co-filers$250K PharmaSecure, Inc.Sep 2009 · 11 co-filers$1.0M BioKier, Inc.Aug 2009 · 3 co-filers$250K

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