Investor · Baltimore, MD

Mark A. Keidel

Open Mark in the network graph →

Filings

21

SEC Form D

Connections

149

co-filers

Capital

$54.0M

across filings

Active

Dec 2024

to Aug 2025

Most-connected co-filers (149)

John C. Morton · Baltimore, MD10 shared Bonnie V. Klapaska · Baltimore, MD10 shared Avani Kanubaddi · Naples, FL8 shared Heli A. Tattari · Monterey, CA8 shared Empire GP, L.L.C · Westport, CT8 shared Satyanarain S. Rangarajan · Princeton, NJ7 shared Adam Thomarios · Akron, OH6 shared Steve J. Korbly · Billerica, MA6 shared Aladin T. Abughazaleh · Dallas, TX6 shared Redwood Capital Management GP, LLC · New York, NY6 shared Dennis O'Brien · Fargo, ND6 shared Daniel Hodgson · Fargo, ND6 shared Nathan J. Churchill · Dallas, TX6 shared Christopher J. Shult · Dallas, TX6 shared Gordon Baty · Billerica, MA6 shared Bruce M. Gewertz · OVERLAND PARK, KS6 shared George E. Hall · New York, NY6 shared John M. Harvey · OVERLAND PARK, KS6 shared Timothy P. Wegener · Dallas, TX6 shared Steve T. Hughes · Boulder, CO6 shared Miriam T. Shark · Brunswick, ME5 shared Keith T. Bisson · Brunswick, ME5 shared Kevin G. Lewis · Brunswick, ME5 shared Charles T. Rudelitch · Brunswick, ME5 shared

Recent filings (21)

MF Raven Holdings, Inc.Aug 2025 · 3 co-filers$90.0M MF Raven Holdings, Inc.Dec 2024 · 4 co-filers$9.8M Coastal Enterprises, Inc.Aug 2023 · 66 co-filers$40.0M Coastal Enterprises, Inc.Mar 2022 · 62 co-filers$40.0M CECIL BANCORP INCSep 2021 · 16 co-filers$10.0M CECIL BANCORP INCSep 2021 · 16 co-filers$10.0M Coastal Enterprises, Inc.Oct 2020 · 60 co-filers$40.0M MF Raven Holdings, Inc.Sep 2020 · 11 co-filers$21.8M Coastal Enterprises, Inc.Dec 2019 · 67 co-filers$40.0M Coastal Enterprises, Inc.Aug 2018 · 46 co-filers$40.0M MF Raven Holdings, Inc.Apr 2018 · 11 co-filers$90.0M Coastal Enterprises, Inc.May 2017 · 61 co-filers$40.0M Empire Capital Partners, L.P.Feb 2013 · 4 co-filers Empire Capital Partners Enhanced, L.P.Feb 2013 · 4 co-filers Empire Capital Partners Enhanced, L.P.Feb 2012 · 4 co-filers Empire Capital Partners, L.P.Feb 2012 · 4 co-filers Empire Capital Partners Enhanced, L.P.Feb 2011 · 4 co-filers Empire Capital Partners, L.P.Feb 2011 · 4 co-filers FIRST MARINER BANCORPJul 2010 · 24 co-filers$1.0M FIRST MARINER BANCORPApr 2010 · 24 co-filers Empire Capital Partners Enhanced, L.P.Feb 2010 · 4 co-filers Empire Capital Partners, L.P.Feb 2010 · 4 co-filers

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