Investor · CHICAGO, IL

Michael S. Langdon

Open Michael in the network graph →

Filings

18

SEC Form D

Connections

72

co-filers

Capital

—

across filings

Active

Sep 2021

to Dec 2024

Most-connected co-filers (72)

Neal G. Sahney · CHICAGO, IL11 shared Joseph R. Rondinelli · CHICAGO, IL11 shared Walter C. Florence · CHICAGO, IL10 shared Paul D. Carbery · CHICAGO, IL9 shared Ronald W. Kuehl · CHICAGO, IL8 shared Elizabeth C. Williamson · CHICAGO, IL8 shared Frank Scavone · Roslyn, NY5 shared Ben J. Gillooly · Grand Cayman, Cayman Islands5 shared Alan Spragins · Seattle, WA4 shared Julie A. Bender · CHICAGO, IL4 shared Andrew Vitus · SAN FRANCISCO, CA4 shared Jeffrey R. Sekinger · Miami, FL4 shared EVR Research LP · Richmond, VA4 shared Benjamin W. Joffe · Richmond, VA4 shared Gennady Alferenko · Irvine, CA4 shared Markie A. Masri · CHICAGO, IL4 shared Julia A. Bender · CHICAGO, IL4 shared Jason W. Fitzgerald · Grand Cayman, Cayman Islands4 shared Mustafa Al-Bassam · Vaduz, N23 shared David Blaauw · Ann Arbor, MI3 shared Eleanor Laurans · Boston, MA3 shared Stefan Goetz · London, United Kingdom3 shared Brian Bloch · Boston, MA3 shared Adrien Motte · London, United Kingdom3 shared

Recent filings (18)

Sentinel Buyer Corp.Sep 2025 · 23 co-filers EVR Offshore Partners Fund, Ltd.Jun 2025 · 10 co-filers FORESTER REVENUE PARTICIPATION, LTD.Mar 2025 · 10 co-filers FRONTENAC XIII PRIVATE CAPITAL LIMITED PARTNERSHIPDec 2024 · 8 co-filers$700.0M FRONTENAC XIII PRIVATE CAPITAL (PARALLEL) LIMITED PARTNERSHIPDec 2024 · 8 co-filers$700.0M Sentinel Buyer Corp.Aug 2024 · 23 co-filers EVR Offshore Partners Fund, Ltd.Jun 2024 · 10 co-filers Sentinel Buyer Corp.Jul 2023 · 22 co-filers Frontenac XI Private Capital (Parallel) Limited PartnershipJul 2023 · 26 co-filers Frontenac XI Private Capital Limited PartnershipJul 2023 · 26 co-filers Frontenac XI Private Capital Limited PartnershipJul 2023 · 26 co-filers Frontenac XI Private Capital (Parallel) Limited PartnershipJul 2023 · 26 co-filers EVR Offshore Partners Fund, Ltd.Jun 2023 · 13 co-filers Pictory, Corp.Mar 2023 · 9 co-filers$3.1M EVR Offshore Partners Fund, Ltd.Jun 2022 · 13 co-filers Pictory, Corp.Jan 2022 · 5 co-filers$2.1M FRONTENAC XII PRIVATE CAPITAL LIMITED PARTNERSHIPSep 2021 · 11 co-filers$425.0M FRONTENAC XII PRIVATE CAPITAL (PARALLEL) LIMITED PARTNERSHIPSep 2021 · 11 co-filers$425.0M Frontenac XI Private Capital Limited PartnershipMay 2017 · 21 co-filers Frontenac XI Private Capital (Parallel) Limited PartnershipMay 2017 · 21 co-filers Frontenac XI Private Capital Limited PartnershipMay 2017 · 21 co-filers Frontenac XI Private Capital (Parallel) Limited PartnershipMay 2017 · 21 co-filers

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