Investor · Madison, WI

Douglas J. Swirsky

Open Douglas in the network graph →

Filings

46

SEC Form D

Connections

168

co-filers

Capital

$74.0M

across filings

Active

Jan 2010

to Sep 2023

Most-connected co-filers (168)

Ran Li · Grand Cayman, Cayman Islands22 shared Wen Hsieh · San Francisco, CA18 shared Coltrane Asset Management, L.P · New York, NY18 shared Coltrane Asset Management, L.P · New York, NY17 shared Laing Rikkers · Pleasanton, CA17 shared Ivana Faltysova · Grand Cayman, Cayman Islands17 shared Keith Reinhard · Pleasanton, CA17 shared Roger L. Priaulx · Grand Cayman, Cayman Islands16 shared Mandeep Manku · New York, NY14 shared Brian Burkholder · New York, NY14 shared Coltrane Asset Management, L.P · New York, NY14 shared Frederick W. Driscoll · Madison, WI11 shared Stefan A. Loren · Florham Park, NJ9 shared John Neis · NOVI, MI9 shared Lynnette B. Frank · Seattle, WA5 shared Marcus E. Smith · EXTON, PA5 shared David B. Auckland · Seattle, WA5 shared Tom Mckeever · Vancouver, British Columbia, Canada5 shared John M. Maslowski · EXTON, PA5 shared Julian P. Kirk · EXTON, PA5 shared Michael G. Mcinnis · Vancouver, British Columbia, Canada5 shared John E. Bateman · Dallas, TX5 shared Eric B. Wolf · Denver, CO5 shared Eric Hankinson · Irvine, CA5 shared

Recent filings (46)

Coltrane Long Value Offshore Fund, Ltd.Feb 2026 · 3 co-filers Coltrane Offshore Fund, Ltd.Aug 2025 · 11 co-filers Coltrane Long Value Offshore Fund, Ltd.Feb 2025 · 11 co-filers Coltrane Offshore Fund, Ltd.Aug 2024 · 11 co-filers Coltrane Offshore Fund, Ltd.Mar 2024 · 11 co-filers Coltrane Long Value Offshore Fund, Ltd.Mar 2024 · 11 co-filers Coltrane Long Value Offshore Fund, Ltd.Feb 2024 · 11 co-filers Cellectar Biosciences, Inc.Sep 2023 · 19 co-filers$24.5M Cellectar Biosciences, Inc.Sep 2023 · 19 co-filers$24.5M Coltrane Offshore Fund, Ltd.Aug 2023 · 11 co-filers Coltrane Long Value Offshore Fund, Ltd.Feb 2023 · 11 co-filers Coltrane Offshore Fund, Ltd.Aug 2022 · 11 co-filers Coltrane Long Value Offshore Fund, Ltd.Feb 2022 · 11 co-filers NeuroBo Pharmaceuticals, Inc.Oct 2021 · 21 co-filers$14.0M Coltrane Offshore Fund, Ltd.Aug 2021 · 11 co-filers Coltrane Long Value Offshore Fund, Ltd.Feb 2021 · 11 co-filers NeuroBo Pharmaceuticals, Inc.Feb 2021 · 23 co-filers$10.0M NeuroBo Pharmaceuticals, Inc.Jan 2021 · 27 co-filers$17.0M Cellectar Biosciences, Inc.Jan 2021 · 24 co-filers$20.5M AavantiBio, Inc.Nov 2020 · 15 co-filers$106.9M AavantiBio, Inc.Nov 2020 · 15 co-filers$106.9M Coltrane Offshore Fund, Ltd.Aug 2020 · 11 co-filers SSG PRIVATE DEBT RATED NOTES II LPFeb 2020 · 26 co-filers SSG PRIVATE DEBT RATED NOTES I LPFeb 2020 · 26 co-filers Vesta Hospitality Fund II, LLCFeb 2020 · 6 co-filers$50.0M

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