Investor · Madison, WI

Michael Partsch

Open Michael in the network graph →

Filings

15

SEC Form D

Connections

57

co-filers

Capital

$21.1M

across filings

Active

Oct 2021

to Feb 2026

Most-connected co-filers (57)

M. Bret Schneider · Redwood City, CA5 shared Lauren Tyra · Dallas, TX4 shared Tobias Zutz · Madison, WI3 shared Ryan Moore · Burlington, MA3 shared Elliot M. Katzman · Somerville, MA3 shared Eric H. Horler · Madison, WI3 shared Adam H. Omansky · Burlington, MA3 shared Steven Weinstein · Madison, WI3 shared Patrick C. Walters · LOS ANGELES, CA3 shared Robert Jeraj · Madison, WI3 shared Alvin Vitangcol · WESTMINSTER, CO3 shared Richard Lesniewski · Madison, WI3 shared Jon Hirschtick · CAMBRIDGE, MA3 shared Gregg Fergus · ANN ARBOR, MI3 shared Timothy Curran · Burlington, MA3 shared Clovis Da Fonseca · INGLEWOOD, CA3 shared Marc Giroux · Lynnwood, WA3 shared Joshua L. Kanner · Burlington, MA3 shared Jim Walters · WEST HOLLYWOOD, CA3 shared Floyd Loop · Dublin, OH3 shared John Macomber · Tarrytown, NY3 shared I. S. Mosley, Jr · Atlanta, GA2 shared Gilbert G. Garcia · Dallas, TX2 shared Tom Huntington · Concord, MA2 shared

Recent filings (15)

Atrility Medical, Inc.Feb 2026 · 3 co-filers$2.0M Gregor Diagnostics, Inc.Nov 2025 · 4 co-filers$250K AIQ Global, Inc.Aug 2025 · 20 co-filers$1.5M AIQ Global, Inc.Aug 2025 · 20 co-filers$1.5M Gregor Diagnostics, Inc.Dec 2024 · 6 co-filers$10.0M AIQ Global, Inc.Jun 2024 · 14 co-filers$5.8M AIQ Global, Inc.Jun 2024 · 14 co-filers$5.8M Gregor Diagnostics, Inc.Oct 2023 · 9 co-filers$6.0M Gregor Diagnostics, Inc.Oct 2023 · 9 co-filers$6.0M Atrility Medical, Inc.Jun 2022 · 10 co-filers$3.8M Atrility Medical, Inc.Jun 2022 · 10 co-filers$3.8M Gregor Diagnostics, Inc.Oct 2021 · 8 co-filers$6.6M Gregor Diagnostics, Inc.Oct 2021 · 8 co-filers$6.6M AIQ Global, Inc.Oct 2021 · 13 co-filers$10.4M AIQ Global, Inc.Oct 2021 · 13 co-filers$10.4M Nalu Medical, Inc.Jul 2015 · 7 co-filers$28.8M Nalu Medical, Inc.Jul 2015 · 7 co-filers$28.8M VELA SYSTEMS INCSep 2010 · 13 co-filers$6.1M NEOSTIM INCFeb 2010 · 9 co-filers$7.5M NEOSTIM INCDec 2009 · 9 co-filers$1.0M VELA SYSTEMS INCJul 2009 · 15 co-filers$10.5M VELA SYSTEMS INCJul 2009 · 15 co-filers$10.5M

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