Ledger.
Investor · Waltham, MA

Donald W. Keyser

Open Donald in the network graph →
Filings
1
SEC Form D
Connections
3
co-filers
Capital
$3.0M
across filings
Active
Feb 2025
to Feb 2025

Most-connected co-filers (3)

Timothy Butler · Waltham, MA1 sharedJustin E. Dumouchelle · Boston, MA1 sharedC. W. Stevenson · Weston, MA1 shared

Recent filings (1)

TEGO INCFeb 2025 · 7 co-filers$5.1MTEGO INCFeb 2025 · 7 co-filers$5.1M

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