AltPep Corporation, a privately held biomedical company focused on diagnosing and treating Central Nervous System amyloid disorders, starting with Alzheimer's Disease, today announced it closed a $23.150 million Series A investment round. Matrix Capital Management led the investment, with significant participation by Alexandria Venture Investments. In conjunction with the financing, David Goel, Managing General Partner and Founder of Matrix Capital Management and Joel Marcus, Executive Chairman and Founder of Alexandria Real Estate Equities/Alexandria Venture Investments, have joined the AltPep Board of Directors.