Investor · Lexington, MA

Joseph M. Grogan

Open Joseph in the network graph →

Filings

8

SEC Form D

Connections

71

co-filers

Capital

$41.7M

across filings

Active

May 2023

to Aug 2025

Most-connected co-filers (71)

Philip M. Pead · Lexington, MA6 shared Peter A. Testa · Lexington, MA4 shared Geoffrey M. Crouse · Lexington, MA4 shared Matthew Young · Jupiter, FL4 shared Peter A. Salvati · REDWOOD CITY, CA2 shared George Pfeffer · REDWOOD CITY, CA2 shared Scott A. Hart · La Jolla, CA2 shared Neal C. Walker · Malvern, PA2 shared Eric R. Lamb · REDWOOD CITY, CA2 shared Jonathan Seeber · Washington, Washington, D.C.2 shared Sergey C. Slipenchuk · Malvern, PA2 shared John Rubocki · Boise, ID2 shared Clay H. Young · EAGLE, ID2 shared Eric J. Newman · Lexington, MA2 shared Laura J. Daniels · Lexington, MA2 shared Robert E. Hariri · Scottsdale, AZ2 shared Robert J. Haime · Lexington, MA2 shared Eduardo P. Avayu · Lexington, MA2 shared Laurel J. Omert · Lexington, MA2 shared William P. O'Neill · Lexington, MA2 shared Jill J. Buckley · Lexington, MA2 shared Alex Newman · Berkeley, CA2 shared Ryan Rawson · Berkeley, CA2 shared Andrew P. Dunham · Lexington, MA2 shared

Recent filings (8)

OrthoRPM, Inc.Oct 2025 · 14 co-filers$2.2M Hemanext Inc.Aug 2025 · 47 co-filers$24.0M Hemanext Inc.Aug 2025 · 47 co-filers$24.0M Hemanext Inc.Jul 2025 · 47 co-filers$21.7M Hemanext Inc.Jul 2025 · 47 co-filers$21.7M OrthoRPM, Inc.Apr 2025 · 16 co-filers$1.2M Myota, Inc.Mar 2024 · 16 co-filers$2.5M SEEKINGSIMPLE, INC.Feb 2024 · 8 co-filers$1.0M SEEKINGSIMPLE, INC.May 2023 · 8 co-filers$1.0M Myota, Inc.May 2023 · 14 co-filers$1.0M

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