Investor · Seattle, WA

Karl Handelsman

Open Karl in the network graph →

Filings

53

SEC Form D

Connections

273

co-filers

Capital

$39.6M

across filings

Active

Dec 2017

to Dec 2025

Most-connected co-filers (273)

Amr Salahieh · Campbell, CA14 shared James P. Kelly · NEW CANAAN, CT14 shared Neela Patel · Seattle, WA12 shared Diane Hollenbaugh · Seattle, WA12 shared John Mulligan · Seattle, WA11 shared John P. Mckearn · St. Louis, MO11 shared Mitchell W. Mutz · Pleasanton, CA7 shared Darren Blasutti · VANCOUVER, British Columbia, Canada6 shared Casey G. Gordon · Campbell, CA6 shared Susan Howe · Gainesville, TX6 shared Andrew Devlin · Aptos, CA6 shared Craig Simkin · Wilmington, DE6 shared Marcho Partners LLP · London, United Kingdom6 shared Bihua S. Chen · Boston, MA6 shared Kenneth M. Panzer · Santa Monica, CA6 shared Xueying Li · Lawrenceville, NJ6 shared Marcho Partners Long GP LLC · Wilmington, DE6 shared Kedar Gupta · North Andover, MA5 shared Leslie F. Foley · Rye, NY5 shared David S. Katz · CHICAGO, IL5 shared David Seldin · Tampa, FL5 shared Aaron Bent · North Andover, MA5 shared William A. Mccullen · Boston, MA5 shared Samuel L. Miller · Montgomery, AL5 shared

Recent filings (53)

Akura Medical, Inc.Dec 2025 · 11 co-filers$72.0M Marcho Partners Long Feeder Fund (Delaware) LPJul 2025 · 12 co-filers Codon Innovation Fund I, LPJun 2025 · 6 co-filers$15.0M Supira Medical, Inc.Apr 2025 · 13 co-filers$120.0M Marcho Partners Long Feeder Fund (Delaware) LPJul 2024 · 12 co-filers Codon Innovation Fund I, LPJun 2024 · 6 co-filers$15.0M Laza Medical, Inc.Dec 2023 · 13 co-filers$38.3M Supira Medical, Inc.Dec 2023 · 11 co-filers$40.0M Akura Medical, Inc.Oct 2023 · 7 co-filers$35.0M Marcho Partners Long Feeder Fund (Delaware) LPJul 2023 · 12 co-filers Codon Innovation Fund I, LPJun 2023 · 6 co-filers$15.0M Bonum Therapeutics, Inc.Nov 2022 · 24 co-filers$93.0M 6K Inc.Aug 2022 · 29 co-filers$122.7M Marcho Partners Long Feeder Fund (Delaware) LPJul 2022 · 12 co-filers 6K Inc.Apr 2022 · 29 co-filers$101.9M Supira Medical, Inc.Mar 2022 · 11 co-filers$30.0M Akura Medical, Inc.Jan 2022 · 5 co-filers$25.0M Bonum Therapeutics, Inc.Dec 2021 · 20 co-filers$3.6M Good Therapeutics, Inc.Dec 2021 · 13 co-filers$26.4M Good Therapeutics, Inc.Dec 2021 · 13 co-filers$26.4M Texas Health Surgery Center Alliance, LLCOct 2021 · 28 co-filers$3K Marcho Partners Long Feeder Fund (Delaware) LPJul 2021 · 12 co-filers Tioga Medical, Inc.Jul 2021 · 8 co-filers$35.0M Codon Capital Fund I, L.P.Mar 2021 · 4 co-filers$50.0M Texas Health Surgery Center Alliance, LLCFeb 2021 · 29 co-filers$399K

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