Investor · Madison, WI

Matthew Koester

Open Matthew in the network graph →

Filings

8

SEC Form D

Connections

31

co-filers

Capital

$500K

across filings

Active

Apr 2022

to Oct 2025

Most-connected co-filers (31)

Barret Ayres · Dover, DE4 shared Jay R. Venkatesan · Uniondale, NY2 shared Christopher Haqq · Cambridge, MA2 shared Julian Adams · Cambridge, MA2 shared Robert Ruffolo · Cambridge, MA2 shared Kyle White · Salt Lake City, UT2 shared Carol Ashe · Cambridge, MA2 shared Thomas Shivers · Dover, DE2 shared Stephen H. Soucy · Saratoga Springs, NY2 shared Will Andress · Dallas, TX2 shared Keith White · Downington, PA2 shared Charles Hura · Lakeville, PA2 shared Jeremiah Boucher · Las Vegas, NV2 shared Yekaterina Chudnovsky · Boston, MA2 shared Karen Wilson · Boston, MA2 shared Brian Piekos · Boston, MA2 shared Allen Nissenson · Boston, MA2 shared Peter Demuth · Boston, MA2 shared Lewis W. Cummings, Iii · Hoover, AL2 shared Matthew Maletta · Malvern, PA2 shared John S. Gault · Austin, TX2 shared Paul Haycock · Dublin, Ireland2 shared Darin Bifani · Dublin, Ireland2 shared Juan Linietsky · Dublin, Ireland2 shared

Recent filings (8)

Hedge Health, Co.Oct 2025 · 2 co-filers$200K Hedge Health, Co.Oct 2025 · 2 co-filers$200K Elicio Therapeutics, Inc.Mar 2024 · 32 co-filers$6.0M Hedge Health, Co.Mar 2024 · 2 co-filers$300K Hedge Health, Co.Mar 2024 · 2 co-filers$300K Elicio Therapeutics, Inc.Jan 2024 · 32 co-filers$7.0M VALLEY VIEW VENTURE II, LLCApr 2022 · 2 co-filers$27.0M VALLEY VIEW VENTURE II, LLCApr 2022 · 2 co-filers$27.0M WRE Hendersonville, LLCApr 2022 · 8 co-filers$1.2M WRE ACQ 2, LLCApr 2022 · 8 co-filers$1.9M

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