Exhibit 11.1 Statement Re: Earnings Per Share (Unaudited) THREE MONTHS ENDED SIX MONTHS ENDED June 30, 1997 June 30, 1998 June 30, 1997 June 30, 1998 ------------- ------------- ------------- -------------- Net loss applicable to common stock $ (2,641,000) $ (3,633,000) $ (4,731,000) $ (7,875,000) ------------- ------------- ------------- -------------- Weighted average common shares outstanding- basic 7,718,681 9,020,957 6,275,556 8,915,006 Common stock options issued at nominal amounts within twelve months of initial public offering 2,872,920 1,903,045 2,872,920 1,903,045 ------------- ------------- ------------- -------------- Weighted average number of common shares outstanding-diluted 10,591,601 10,924,002 9,148,476 10,818,051 ------------- ------------- ------------- -------------- Net loss per common share: Basic $ (0.34) $ (0.40) $ (0.75) $ (0.88) ------------- ------------- ------------- -------------- Diluted $ (0.25) $ (0.33) $ (0.52) $ (0.73) ------------- ------------- ------------- -------------- The Company follows Statement of Financial Accounting Standards (SFAS) No. 128, Earnings Per Share, issued by the Financial Accounting Standards Board. Under SFAS No. 128, the basic and diluted net loss per share of common stock for the periods ended June 30, 1997 and 1998 is computed by dividing the net loss by the weighted average number of common shares outstanding during the period, including stock options issued at nominal amounts within twelve months of the Company's initial public offering (IPO). Stock options issued at nominal amounts within twelve months prior to the Company's IPO are considered outstanding for all periods presented for the diluted calculation in accordance with the Securities and Exchange Commission Staff Accounting Bulletin No. 98. The Company's convertible preferred stock and other convertible instruments are not considered outstanding for the diluted calculation since their effect is antidilutive. The weighted average number of common shares outstanding excludes 1,200,000 shares of common stock subject to a contingent repurchase right of the Company. The 1,200,000 shares will only be released upon the attainment of certain revenue, net income and stock price milestones, as defined in an agreement between Palomar and the Company. At June 30, 1998 such conditions were not satisfied.