Investor · New York, NY

Michael S. Irwin

Open Michael in the network graph →

Filings

11

SEC Form D

Connections

45

co-filers

Capital

$11.4M

across filings

Active

Jul 2024

to Sep 2025

Most-connected co-filers (45)

Camber Partners Management LLC · San Francisco, CA7 shared Kevin Mcdonald · Santa Fe, NM5 shared Mark Goldwasser · Rockville, MD5 shared Todd Westhus · NEW YORK, NY5 shared Andrew E. Law · London, United Kingdom3 shared Christopher Wolfe · Omaha, NE3 shared Brent Fawson · Boise, ID3 shared Dana Barnard · Santa Fe, NM3 shared Alan H. Kelly · George Town, Cayman Islands3 shared Eric S. Ziegler · San Francisco, CA3 shared Michael M. Ricci · Goleta, CA3 shared Robert Reali · Goleta, CA3 shared Bradley Paden · Goleta, CA3 shared Brian Clark · Tallahassee, FL3 shared Cyrus Morici · Goleta, CA3 shared Tripathi Burton · Goleta, CA3 shared Mark Maire · Goleta, CA3 shared Chanelle D. Nicholls · London, United Kingdom3 shared Stephen A. Schubert · Elmsford, NY3 shared Christian D'Urso · Portland, OR3 shared Joseph M. Scharfenberger · NEW YORK, NY2 shared Mark M. Mcfadden · NEW YORK, NY2 shared Gregory D. Brenneman · Atlanta, GA2 shared Kent J. Summers · Santa Fe, NM2 shared

Recent filings (11)

SER Holdco Inc.Sep 2025 · 9 co-filers$10.0M SER Holdco Inc.Sep 2025 · 9 co-filers$10.0M TaxCloud HoldCo, Inc.Feb 2025 · 9 co-filers$5.0M TaxCloud HoldCo, Inc.Feb 2025 · 9 co-filers$5.0M Camber TaxCloud LLCFeb 2025 · 3 co-filers$1.4M Camber TaxCloud LLCFeb 2025 · 3 co-filers$1.4M Camber Partners Fund II LPJul 2024 · 5 co-filers Camber Partners Fund II LPJul 2024 · 5 co-filers Camber Beamer LLCJul 2023 · 5 co-filers Camber TaxCloud LLCFeb 2023 · 5 co-filers Launchpoint Electric Propulsion Solutions, Inc.Oct 2022 · 20 co-filers$4.0M Launchpoint Electric Propulsion Solutions, Inc.Apr 2022 · 20 co-filers$4.0M Launchpoint Electric Propulsion Solutions, Inc.Dec 2021 · 20 co-filers$4.0M CCMP Capital Investors III CV, L.P.Dec 2021 · 14 co-filers CCMP Capital Investors (Employee) III CV, L.P.Dec 2021 · 14 co-filers

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