Investor · Milwaukee, WI

Michael A. Wirth

Open Michael in the network graph →

Filings

17

SEC Form D

Connections

51

co-filers

Capital

$17.7M

across filings

Active

Aug 2009

to Dec 2025

Most-connected co-filers (51)

Garrett R. Berg · New York, NY10 shared Mallory Ross · New York, NY10 shared Dhruva S. Moudgal · Phoenix, AZ9 shared Calvin Carter · Dallas, TX6 shared Helen Thackray · Gaithersburg, MD5 shared Cheryl Hess · Alamenda, CA5 shared Kelly Brodbeck · Alamenda, CA5 shared Larry Hood · Alamenda, CA5 shared William Gust · Gaithersburg, MD5 shared Michael Henos · Gaithersburg, MD5 shared Franklin Top · Gaithersburg, MD5 shared M. J. Barrett · Gaithersburg, MD5 shared Harold Shattuck · Alamenda, CA5 shared George C. Holbrook · Santa Barbara, CA5 shared Robert Hallewell · Alamenda, CA5 shared John Baldwin · Gaithersburg, MD5 shared James Iuliano · Santa Barbara, CA4 shared Dakin Sloss · Teton Village, WY4 shared Derek Wilson · Dallas, TX4 shared Rowan G. Taylor · New York, NY4 shared Meng Seng Lee · Singapore, U04 shared Mark I. Colville · EDINA, MN4 shared Rachel Matthai · Hoboken, NJ4 shared Robert Bennett · Dallas, TX4 shared

Recent filings (17)

CT Steel HoldCo LLCDec 2025 · 2 co-filers$7.8M CT Steel HoldCo LLCDec 2025 · 2 co-filers$7.8M ESGL Holdings LtdJan 2025 · 23 co-filers$30.0M PPC Investors LLCSep 2024 · 4 co-filers$9.8M PPC Investors LLCSep 2024 · 4 co-filers$9.8M ESGL Holdings LtdAug 2024 · 23 co-filers$5.0M ESGL Holdings LtdAug 2024 · 23 co-filers$5.0M ESGL Holdings LtdApr 2024 · 23 co-filers$2.5M AFFINITY BIOSENSORS LLCOct 2023 · 11 co-filers$3.5M AFFINITY BIOSENSORS LLCJul 2023 · 11 co-filers$3.5M AFFINITY BIOSENSORS LLCFeb 2023 · 11 co-filers$4.0M AFFINITY BIOSENSORS LLCDec 2022 · 11 co-filers$4.0M CA-Colorado Center L.L.C.Dec 2022 · 16 co-filers$125K CA-Colorado Center L.L.C.Dec 2022 · 16 co-filers$125K Vapore, Inc.Jun 2010 · 13 co-filers$700K Vapore, Inc.May 2010 · 13 co-filers$700K Vapore, Inc.Apr 2010 · 13 co-filers$1.2M Vapore, Inc.Sep 2009 · 13 co-filers$500K Vapore, Inc.Aug 2009 · 13 co-filers$500K

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