Investor · Angwin, CA

John A. Martin

Open John in the network graph →

Filings

10

SEC Form D

Connections

53

co-filers

Capital

$1.1M

across filings

Active

Jun 2022

to Jun 2025

Most-connected co-filers (53)

Walter L. Seale · Angwin, CA10 shared Benjamin P. Santos · Singapore, U05 shared Alois A. Langer · Angwin, CA5 shared Shahar Hania · Ra'anana, L33 shared Steve W. Wright · Harrisonburg, VA3 shared Dennis P. Dougherty · MORRISVILLE, NC3 shared Revel Wood · Howald, Luxembourg, Luxembourg3 shared Joy P. Drach · MORRISVILLE, NC3 shared AEI Net Lease Portfolio IV Depositor, LLC · St. Paul, MN3 shared Ritesh V. Sharma · Johns Creek, GA3 shared Ben P. Shelton · MORRISVILLE, NC3 shared Sanjeev Krishnan · Rockingham, VA3 shared Scott Murphy · Rockingham, VA3 shared David Henderson · Rockingham, VA3 shared Steve P. Carnevale · MORRISVILLE, NC3 shared Philip Karp · Rockingham, VA3 shared Kathryn O'Sullivan · Howald, Luxembourg, Luxembourg3 shared Dmitry Vorontsov · New York, NY3 shared Michael Faulkner · Howald, Luxembourg, Luxembourg3 shared Walter Robb · Harrisonburg, VA3 shared Cathy Zoi · Harrisonburg, VA3 shared Cheryl Miller · Harrisonburg, VA3 shared Matt Ryan · Harrisonburg, VA3 shared Ulf W. Jonsson · Harrisonburg, VA3 shared

Recent filings (10)

Altesa BioSciences, Inc.Feb 2026 · 7 co-filers$75.0M Health Alert, Inc.Jun 2025 · 8 co-filers$1.0M Health Alert, Inc.Jun 2025 · 8 co-filers$1.0M Health Alert, Inc.Dec 2023 · 8 co-filers$1.0M Health Alert, Inc.Dec 2023 · 8 co-filers$1.0M Health Alert, Inc.Dec 2023 · 8 co-filers Health Alert, Inc.Dec 2023 · 8 co-filers Altesa BioSciences, Inc.Jul 2023 · 17 co-filers$35.0M Mansby Capital Income Fund, LPMay 2023 · 7 co-filers SG Holdings, LLCOct 2022 · 32 co-filers$15.0M SG Holdings, LLCAug 2022 · 32 co-filers SG Holdings, LLCJun 2022 · 34 co-filers Mansby Capital Income Fund, LPJun 2022 · 7 co-filers

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