Investor · Herndon, VA

John S. Serafini

Open John in the network graph →

Filings

17

SEC Form D

Connections

76

co-filers

Capital

$185.0M

across filings

Active

May 2020

to Feb 2024

Most-connected co-filers (76)

Daniel M. Fu · Boston, MA8 shared Michael D. Germano · BOSTON, MA8 shared Arthur L. Money · Herndon, VA7 shared Newton Investment Management North America, Llc · BOSTON, MA5 shared Mark Spoto · Herndon, VA5 shared Newton Investment Management North America, Llc · BOSTON, MA5 shared Newton Investment Management North America, Llc · BOSTON, MA5 shared Robert L. Rainhart · Herndon, VA4 shared Harborwalk Alternatives Ii Gp, Llc · BOSTON, MA4 shared David S. Farnsworth · Herndon, VA4 shared Harborwalk Alternatives I Gp, Llc · BOSTON, MA4 shared Harborwalk Alternatives Ii Gp, Llc · BOSTON, MA4 shared Simon M. Davidson · Wellesley, MA4 shared Harborwalk Alternatives I Gp, Llc · BOSTON, MA4 shared Harborwalk Alternatives I Gp, Llc · BOSTON, MA4 shared Mellon Investments Corporation · BOSTON, MA3 shared Craig L. Searle · Herndon, VA3 shared Mellon Investments Corporation · BOSTON, MA3 shared David G. Dewalt · San Francisco, CA3 shared Nomi L. Bergman · Herndon, VA3 shared James Biviano · denver, CO2 shared William A. Ackman · New York, NY2 shared Jon Frojen · El Segundo, CA2 shared Peter C. Aberg · New York, NY2 shared

Recent filings (17)

HarborWalk Risk Parity Delta Rho Q V20 Fund, L.P.Feb 2024 · 10 co-filers Zia Risk Parity Fund, L.P.Aug 2023 · 7 co-filers HawkEye 360, Inc.Jul 2023 · 33 co-filers$100.0M HawkEye 360, Inc.Jul 2023 · 33 co-filers$100.0M HarborWalk Risk Parity Delta Rho Q V20 Fund, L.P.Feb 2023 · 8 co-filers Zia Risk Parity Fund, L.P.Aug 2022 · 7 co-filers HawkEye 360, Inc.Nov 2021 · 31 co-filers$150.8M HarborWalk Risk Parity Delta Rho Q V20 Fund, L.P.Sep 2021 · 8 co-filers Zia Risk Parity Fund, L.P.May 2021 · 6 co-filers HawkEye 360, Inc.Apr 2021 · 29 co-filers$55.0M HarborWalk Risk Parity Delta Rho Q V20 Fund, L.P.Aug 2020 · 13 co-filers Zia Risk Parity Fund, L.P.May 2020 · 12 co-filers Ascend Industries, LLCMay 2020 · 2 co-filers$475K GLDN Holdings, LLCMay 2020 · 2 co-filers$525K HawkEye 360, Inc.Aug 2019 · 17 co-filers$70.0M HawkEye 360, Inc.Aug 2019 · 17 co-filers$70.0M HawkEye 360, Inc.Aug 2018 · 15 co-filers$14.9M HawkEye 360, Inc.Aug 2018 · 15 co-filers$14.9M JN Medical CorpApr 2014 · 7 co-filers$2.0M JN Medical CorpApr 2014 · 7 co-filers$501K

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