Liquidity and Capital ResourcesOur primary financing requirements are for (i) capital equipment expenditures related to the manufacturing facility in South San Francisco, California; (ii) funding our day-to-day working capital requirements; and (iii) research and development costs. Cash, cash equivalents and investment securities were $18,021,000 and our working capital position was $7,540,000 at December 31, 2002. We have financed our operations since inception primarily through capital provided by Genentech, sales of our common stock and through an issuance of Series A Redeemable cConvertible preferred stockPreferred Stock. Genentech has no obligation to provide us future funding. We completed our initial public offering in July 1999, in which we sold 3,565,000 shares of common stock resulting in net proceeds to us of approximately $41,959,000. In early 1999, we received net proceeds of $5,273,000 from private placement financing activities, which were completed prior to our initial public offering. In December 1999, we completed a private placement of common stock with Vulcan Ventures, Inc. The funds from the private placement helped support our on-going operations along with our current clinical trials. This private placement has also enabled us to commence development of a formulation of AIDSVAX, that focuses on the predominant HIV type found in Africa, China, India and South America (subtype C). Currently, we have developed formulations of AIDSVAX, that focus on the predominant HIV type in North America, Europe, the Caribbean and Australia (subtype B) and the predominant HIV subtype in Southeast Asia and East Asia (subtype E). The private placement consisted of approximately 2,174,000 shares of common stock, which resulted in proceeds, net of expenses, to us of approximately $24,100,000. On May 23, 2001 we completed a Preferred Stock financing through which four investors paid us an aggregate of approximately $20,000,000 in consideration for 20,000 shares of our Series A Redeemable Convertible Preferred Stock at a price of $1,000 per share, convertible into shares of our common stock, at an initial conversion price of $23.2185 per share. In the event that there is no earlier conversion, we must redeem the Series A Redeemable Convertible Preferred Stock for cash on May 23, 2004, at a redemption price equal to $1,000 per share plus all accrued and unpaid dividends. Expenses relating to the transaction were approximately $1,700,000, resulting in net proceeds to us of approximately $18,300,000. The proceeds from the Series A Redeemable Convertible Preferred Stock financing have been used to develop our commercial-scale manufacturing facilities, the potential development of new adjuvants and general corporate purposes. During the fourth quarter of 2002, two investor’s converted 16,200 shares in the aggregate of Preferred Stock in exchange for 1,172,436 shares of common stock, which included shares issued for accrued but unpaid dividends. As of December 31, 2002, 3,800 shares of Series A Redeemable Convertible Preferred Stock remained outstanding. In connection with the Series A Redeemable Convertible Preferred Stock financing, we issued warrants for the purchase of 297,177 shares of our common stock to our Preferred Stock investors. The warrants, which expire on May 23, 2006, originally had an initial exercise price of $25.2375 per share; however effective as of May 23, 2002, the exercise price was automatically adjusted to $14.133 per share and the number of shares issuable on exercise of the warrants increased to 530,674, in accordance to the terms of the warrants. Since our inception, investing activities, other than purchases and sales of investment securities, have consisted entirely of equipment acquisitions and leasehold improvements. From inception through December 31, 2002, our gross investment in equipment and leasehold improvements was $6,421,000. The increase in equipment and leasehold improvements has been primarily due to the development of our research and development laboratories and the establishment of larger office facilities. Net cash used in operating activities for 2002 was $29,040,000 representing expenditures for research and development costs and general and administrative expenses.
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