Investor · Toronto, Ontario, Canada

Ryan Ptolemy

Open Ryan in the network graph →

Filings

8

SEC Form D

Connections

54

co-filers

Capital

$642K

across filings

Active

Feb 2011

to Feb 2026

Most-connected co-filers (54)

Alec Pismiris · Vancouver, British Columbia, Canada5 shared Brian Moller · SYDNEY NSW, Channel Islands5 shared David Gower · SYDNEY NSW, Channel Islands5 shared Bruno R. Bailavoine · Vienna, VA3 shared Stephen R. Brady · Seattle, WA3 shared Jan Henrik T. Ter Meulen · Seattle, WA3 shared Wayne R. Gombotz · Seattle, WA3 shared Carl Iberger · West Palm Beach, FL3 shared Matthew D. Diserio · New York, NY3 shared Drew Y. Stern · Chicago, IL3 shared Peter V. Svennilson · SAN FRANCISCO, CA3 shared Brian G. Atwood · South San Francisco, CA3 shared William R. Ringo · Menlo Park, CA3 shared Richard T. Kenney · Seattle, WA3 shared Robert M. Patzig · Omaha, NE3 shared David R. Baltimore · San Diego, CA3 shared Ilan Danieli · New Haven, CT3 shared Ed C. Penhoet · San Diego, CA3 shared Franklin T. Berger · Seattle, WA3 shared Carlos V. Paya · Seattle, WA3 shared Paul T. Rickey · Seattle, WA3 shared Samuel Riccitelli · New Haven, CT3 shared Mark Rimer · New Haven, CT3 shared Brett Lynch · Toronto, Ontario, Canada2 shared

Recent filings (8)

Brazil Potash Corp.Feb 2026 · 7 co-filers$28.0M Consolidated Lithium Metals Inc.Dec 2025 · 15 co-filers$1.7M Consolidated Lithium Metals Inc.Dec 2025 · 15 co-filers$1.7M Aguia Resources Ltd.Jul 2017 · 13 co-filers$2.5M Aguia Resources Ltd.Jul 2017 · 13 co-filers$2.0M Aguia Resources Ltd.Jul 2017 · 13 co-filers$2.0M Aguia Resources Ltd.Jul 2017 · 13 co-filers$2.5M Immune Design Corp.Jun 2014 · 23 co-filers$18K Immune Design Corp.Jun 2014 · 23 co-filers$10 Immune Design Corp.Jun 2014 · 23 co-filers$11K Rodinia Lithium Inc.Feb 2011 · 17 co-filers$235K Rodinia Lithium Inc.Feb 2011 · 17 co-filers$235K

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