Investor · New York, NY

Matthew Auster

Open Matthew in the network graph →

Filings

5

SEC Form D

Connections

20

co-filers

Capital

$132.2M

across filings

Active

Nov 2024

to Feb 2026

Most-connected co-filers (20)

Robert Manning · San Francisco, CA5 shared Charles Auster · New York, NY5 shared Francesco Scanga · New York, NY5 shared Ronald F. Zampolin · Armonk, NY5 shared Michael Pisterzi · New York, NY5 shared Anthony J. D'Ambrosi · Briarcliff Manor, NY2 shared Jeanne Walters · New York, NY2 shared Russell Reeder · New York, NY2 shared Ilene Busch-Vishniac · Baltimore, MD1 shared Cristina Rohr · Arlington, VA1 shared Elizabeth Kubycheck · New York, NY1 shared Veery Maxwell · San Francisco, CA1 shared Neil K. Mowery · Bala Cynwyd, PA1 shared Devaang Shah · BROOKLYN, NY1 shared Kurt Goodjohn · La Jolla, CA1 shared Kris Goodjohn · La Jolla, CA1 shared Nathaniel MGG Investment Group LP · New York, NY1 shared Gregory Pappajohn · NEW YORK, NY1 shared William Allen · NEW YORK, NY1 shared Brian L. Dougherty · CHICAGO, IL1 shared

Recent filings (5)

XTIUM HOLDINGS, INC.Feb 2026 · 5 co-filers$25.6M XTIUM HOLDINGS, INC.Sep 2025 · 6 co-filers$17.5M ATSG Holdings, Inc.Nov 2024 · 8 co-filers$120.2M ATSG Holdings, Inc.Jan 2024 · 17 co-filers$15.4M ATSG Holdings, Inc.Jan 2024 · 17 co-filers$15.4M Axispoint Technology Solutions Group, Inc.Nov 2019 · 18 co-filers$35.0M Axispoint Technology Solutions Group, Inc.Nov 2019 · 18 co-filers$35.0M

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