Ledger.
Investor · Durham, NC

Heather Madsen

Open Heather in the network graph →
Filings
1
SEC Form D
Connections
2
co-filers
Capital
$1.5M
across filings
Active
Nov 2025
to Nov 2025

Most-connected co-filers (2)

Holden H. Thorp · St. Louis, MO1 sharedClay Thorp · Malvern, PA1 shared

Recent filings (1)

PIPr Therapeutics, Inc.Nov 2025 · 5 co-filers$2.5MPIPr Therapeutics, Inc.Nov 2025 · 5 co-filers$2.5M

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