CAMBRIDGE, Mass.--(BUSINESS WIRE)--Helicos BioSciences Corporation (NASDAQ: HLCS), a life science company focused on innovative genetic analysis technologies for the research, drug discovery, and diagnostic markets, today announced that it has entered into a definitive agreement with certain new and existing investors, including Atlas Ventures, Flagship Ventures, Highland Capital Partners, Versant Ventures (the “Existing Investors”) and Ron Lowy, the Company’s chief executive officer, to raise approximately $10 million in gross proceeds in a private placement through the sale of shares of its common stock and warrants. The Company estimates that net proceeds from the offering will be approximately $9.4 million, after deducting placement agent fees and estimated offering expenses, which Helicos intends to use to fund working capital requirements to support its sales and for general corporate purposes.