Investor · New York, NY

Charles Auster

Open Charles in the network graph →

Filings

13

SEC Form D

Connections

67

co-filers

Capital

$132.2M

across filings

Active

Nov 2024

to Feb 2026

Most-connected co-filers (67)

Francesco Scanga · New York, NY11 shared Ronald F. Zampolin · Armonk, NY11 shared Anthony J. D'Ambrosi · Briarcliff Manor, NY10 shared Robert Manning · San Francisco, CA8 shared Charles T. Woolnough · DUBLIN, Ireland5 shared Lansdowne General Partner I Limited · Dublin, Ireland5 shared Lansdowne Partners (UK) LLP · London, United Kingdom5 shared Jeffrey S. Mathiesen · Eden Prairie, MN5 shared Michael Pisterzi · New York, NY5 shared Donghao Li · Los Angeles, CA5 shared Mark S. Christianson · Eden Prairie, MN5 shared Matthew Auster · New York, NY5 shared Suzanna Nutton · DUBLIN, Ireland5 shared Johannes T. Niederhauser · DUBLIN, Ireland5 shared Ann Zovein · El Segundo, CA3 shared Wu Xijin · North York, Ontario, Canada3 shared Nikolaus T. Von Bomhard · DUBLIN, Ireland3 shared Xianhui Liang · Los Angeles, CA3 shared Anthony F. Holler · Vancouver, British Columbia, Canada2 shared Michael D. Barker · Pasadena, CA2 shared Allen I. Pruitt · Midland, TX2 shared Norman J. Mayr · Burnaby, British Columbia, Canada2 shared Jeanne Walters · New York, NY2 shared Kenneth L. Burgess · Midland, TX2 shared

Recent filings (13)

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 LANSDOWNE CLEAN ENERGY FUND, L.P.Oct 2021 · 15 co-filers LANSDOWNE CLEAN ENERGY FUND, L.P.Oct 2020 · 15 co-filers Axispoint Technology Solutions Group, Inc.Nov 2019 · 18 co-filers$35.0M LANSDOWNE CLEAN ENERGY FUND, L.P.Oct 2019 · 15 co-filers Axispoint Technology Solutions Group, Inc.Feb 2019 · 14 co-filers$15.0M LANSDOWNE CLEAN ENERGY FUND, L.P.Oct 2018 · 15 co-filers LANSDOWNE CLEAN ENERGY FUND, L.P.Oct 2017 · 15 co-filers FIRST BANCSHARES OF TEXAS INCOct 2017 · 33 co-filers$45.0M FIRST BANCSHARES OF TEXAS INCOct 2017 · 33 co-filers$45.0M

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