Investor · Marathon, J3

Angelos Kostopoulos

Open Angelos in the network graph →

Filings

17

SEC Form D

Connections

49

co-filers

Capital

$338K

across filings

Active

Feb 2019

to Feb 2026

Most-connected co-filers (49)

Caledonia (Private) Investments Pty Limited · Sydney NSW, Channel Islands7 shared Joseph F. Tower · Boston, MA7 shared Caledonia GP, LLC · New York, NY7 shared Caledonia Us, LP · NEW YORK, NY7 shared Kevin Wyman · Greenwich, CT6 shared Patrick W. Agemian · George Town, Grand Cayman, Cayman Islands6 shared Matthew Bjonerud · Baltimore, MD6 shared Yitao Zhuang · Palo Alto, CA6 shared Tammy D. Jennissen · Grand Cayman, Cayman Islands6 shared Antoine Fillet · Grand Cayman, Cayman Islands6 shared James Mcguire · Baltimore, MD6 shared Landon Smith · MANKATO, MN6 shared Christopher C. Bowring · Grand Cayman, Cayman Islands6 shared Marc Lemchen · Wichita Falls, TX6 shared Douglas Becker · Baltimore, MD6 shared Jason Bible · Houston, TX6 shared Philip R. Cater · GEORGE TOWN, GRAND CAYMAN, Cayman Islands6 shared Howard Golden · Greenwich, CT5 shared James P. Barry · Chicago, IL3 shared Brian Belke · New York, NY3 shared Charles Yoon · New York, NY3 shared Luca N. Baggioli · Luxembourg, Luxembourg3 shared Dana Wheeler · Plymouth, MA2 shared Timothy J. Rudderow · Newtown, PA2 shared

Recent filings (17)

Caledonia Long Fund LPFeb 2026 · 2 co-filers Caledonia Fund (US), L.P.Feb 2026 · 2 co-filers Caledonia Fund (US), L.P.Feb 2025 · 8 co-filers Caledonia Fund (US), L.P.Feb 2024 · 8 co-filers Caledonia Fund (US), L.P.Feb 2023 · 8 co-filers SOUTHPAW CREDIT OPPORTUNITY FUND FTE LTDAug 2022 · 14 co-filers Caledonia Fund (US), L.P.Feb 2022 · 8 co-filers Plymouth Rock Technologies Inc.Aug 2021 · 18 co-filers$318K SOUTHPAW CREDIT OPPORTUNITY FUND FTE LTDJul 2021 · 14 co-filers Caledonia Fund (US), L.P.Feb 2021 · 8 co-filers MRP Value Fund I, LPAug 2020 · 14 co-filers SOUTHPAW CREDIT OPPORTUNITY FUND FTE LTDAug 2020 · 14 co-filers Plymouth Rock Technologies Inc.May 2020 · 17 co-filers$20K Caledonia Fund (US), L.P.Feb 2020 · 8 co-filers SOUTHPAW CREDIT OPPORTUNITY FUND FTE LTDFeb 2020 · 12 co-filers SOUTHPAW CREDIT OPPORTUNITY FUND FTE LTDFeb 2019 · 12 co-filers Caledonia Fund (US), L.P.Feb 2019 · 8 co-filers

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