1 PLANET POLYMER TECHNOLOGIES, INC. EXHIBIT 11.1 STATEMENT OF COMPUTATION OF COMMON AND COMMON EQUIVALENT SHARES AS OF SEPTEMBER 30, 1999 Three months ended Nine months ended September 30, September 30, ------------------------ ------------------------ 1999 1998 1999 1998 --------- --------- --------- --------- Shares outstanding at beginning of period 5,300,144 5,300,144 5,300,144 5,300,144 10,169 shares issued on March 15, 1998 10,169 10,169 10,169 7,413 8,695 shares issued on June 15, 1998 8,695 8,695 8,695 3,408 13,483 shares issued on September 15, 1998 13,483 2,198 13,483 740 8,571 shares issued on December 15, 1998 8,571 -- 8,571 -- --------- --------- --------- --------- Weighted average number of shares 5,341,062 5,321,206 5,341,062 5,311,705 ========= ========= 1,000,000 shares issued on January 11, 1999 1,000,000 959,707 9,677 shares issued on March 15, 1999 9,677 7,054 5,000 shares issued on March 30, 1999 5,000 3,370 9,677 shares issued on June 15, 1999 9,677 3,793 5,106 shares issued on September 15, 1999 833 281 --------- --------- Weighted average number of shares 6,366,249 6,315,267 ========= =========