Investor · Boston, MA

Matt S. Walsh

Open Matt in the network graph →

Filings

25

SEC Form D

Connections

168

co-filers

Capital

$50.0M

across filings

Active

Apr 2020

to Apr 2022

Most-connected co-filers (168)

Timothy Rice · Boston, MA9 shared Nic Carter · Cambridge, MA9 shared Bob Davis · Boston, MA9 shared Mathew S. Mcdermott · Boston, MA8 shared Nicolas Carter · Boston, MA6 shared Robert R. Wills, Ph.D · San Diego, CA5 shared Michael G. Carter, M.D., Chb, Frcp · San Diego, CA5 shared Timothy S. Collins · MILWAUKEE, WI5 shared Xin R. Nakanishi, Ph.D · San Diego, CA5 shared William R. Larue · San Diego, CA5 shared Igor B. Bilinsky, Ph.D · San Diego, CA5 shared Daniel G. Kisner, M.D · San Diego, CA5 shared Frank B. Hsu, M.D · San Diego, CA5 shared David Fleshman · PALO ALTO, CA5 shared Man R. Cho · San Diego, CA5 shared Michael A. Moceri · Chicago, IL5 shared Karen J. Jakobi · Irvine, CA5 shared Paul T. Estrem · New Haven, CT5 shared David J. Winograd · Milwaukee, WI5 shared Richard B. Vincent · San Diego, CA5 shared Damian Caldwell · Winston-Salem, NC5 shared Carolin Steinmann · Pfaffikon, V85 shared David F. Hale · San Diego, CA5 shared Mark E. Jorgensen · San Francisco, CA5 shared

Recent filings (25)

Castle Island Ventures IV Feeder, L.P.Oct 2025 · 14 co-filers Castle Island Ventures IV, L.P.Sep 2025 · 14 co-filers Syr Corp.Apr 2024 · 8 co-filers$2.8M ONE OHANA CORP.Nov 2023 · 20 co-filers$450K Coin Metrics Inc.Oct 2023 · 11 co-filers$6.7M Coin Metrics Inc.Oct 2023 · 11 co-filers$6.7M Attestiv Inc.Jul 2023 · 12 co-filers$2.2M Syr Corp.Jun 2023 · 8 co-filers$2.4M ONE OHANA CORP.Jun 2023 · 13 co-filers$1K Coin Metrics Inc.Apr 2022 · 14 co-filers$35.0M Coin Metrics Inc.May 2021 · 16 co-filers$15.0M Attestiv Inc.Apr 2021 · 10 co-filers$4.0M Oncternal Therapeutics, Inc.Dec 2020 · 38 co-filers$6.5M Oncternal Therapeutics, Inc.Nov 2020 · 38 co-filers$1.7M Oncternal Therapeutics, Inc.Sep 2020 · 38 co-filers$383K Attestiv Inc.Aug 2020 · 10 co-filers$1.5M Oncternal Therapeutics, Inc.Aug 2020 · 40 co-filers$3.5M Varde Jarnvag Fund, L.P.Jun 2020 · 55 co-filers Oncternal Therapeutics, Inc.Jun 2020 · 40 co-filers$2.8M Varde Mortgage Fund III Master, L.P.Apr 2020 · 55 co-filers NIGHT SHIFT I, LTD.Feb 2020 · 2 co-filers$450K Coin Metrics Inc.Nov 2019 · 7 co-filers$6.0M Coin Metrics Inc.Nov 2019 · 7 co-filers$6.0M Hines Master Fund Management CO S.a.r.l. acting in its capacity as Management CO of Hines Real Estate Master FCP-FIS-Hines Pan-European Core FundJun 2019 · 14 co-filers NIGHT SHIFT I, LTD.Jun 2019 · 2 co-filers$450K

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