Investor · Washington, Washington, D.C.

Joseph Grajewski

Open Joseph in the network graph →

Filings

17

SEC Form D

Connections

50

co-filers

Capital

$14.5M

across filings

Active

Oct 2013

to Jan 2021

Most-connected co-filers (50)

David Steinberg · Woodland Hills, CA16 shared Marc Wallace · Washington, Washington, D.C.14 shared Scott Smith · Washington, Washington, D.C.13 shared Timothy Donahue · Washington, Washington, D.C.13 shared Stillman Bradish · Washington, Washington, D.C.13 shared Chris T. Mckee · McLean, VA7 shared Theodore B. Smith, Iii · McLean, VA7 shared H. B. Thompson · McLean, VA7 shared Lothar H. Koob · Orlando, FL7 shared Rhodric C. Hackman · McLean, VA7 shared Howard E. Janzen · McLean, VA7 shared Devon Kinkead · Boston, MA7 shared Richard D. Calder, Jr · McLean, VA7 shared Nelson Repenning · Cambridge, MA7 shared Janine Shea · Boulder, CO6 shared Eric Ver Ploeg · Palo Alto, CA6 shared Nick B. Adamo · McLean, VA6 shared Elizabeth E. Satin · McLean, VA6 shared Michael T. Sicoli · McLean, VA6 shared Warren Lammert · Boston, MA6 shared Robert C. Machinist · Simi Valley, CA6 shared Heather S. Thorne · San Francisco, CA6 shared Daniel Abrams · Aurora, CO6 shared Christopher K. Casey · Rochester, NY5 shared

Recent filings (17)

Radius Networks, Inc.Jan 2024 · 11 co-filers$5.0M Radius Networks, Inc.Jan 2024 · 11 co-filers$5.0M Radius Networks, Inc.Jan 2021 · 14 co-filers$10.0M GTT Communications, Inc.Dec 2018 · 26 co-filers$5.0M GTT Communications, Inc.Jun 2018 · 29 co-filers$425.0M Radius Networks, Inc.Apr 2018 · 14 co-filers$5.0M GTT Communications, Inc.Mar 2018 · 26 co-filers$3.9M GTT Communications, Inc.Jan 2018 · 26 co-filers$2.1M GTT Communications, Inc.Oct 2017 · 26 co-filers$57.1M GTT Communications, Inc.Jan 2017 · 26 co-filers$75.0M Radius Networks, Inc.Sep 2016 · 14 co-filers$2.0M Rock Springs Capital Fund LPOct 2015 · 8 co-filers Radius Networks, Inc.Sep 2015 · 14 co-filers$3.0M Radius Networks, Inc.Jan 2015 · 14 co-filers$6.7M GTT Communications, Inc.Oct 2014 · 20 co-filers$2.9M Rock Springs Capital Fund LPOct 2014 · 8 co-filers Radius Networks, Inc.Mar 2014 · 3 co-filers$750K Radius Networks, Inc.Mar 2014 · 3 co-filers$750K Rock Springs Capital Fund LPOct 2013 · 5 co-filers

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