MICROCHIP TECHNOLOGY INCORPORATED AND SUBSIDIARIES EXHIBIT 11 - COMPUTATION OF NET INCOME PER SHARE (in thousands, except per share amounts) Three Months Ended June 30, 1997 1996 ------- ------- Net income $17,832 $ 6,686 ======= ======= Weighted average shares: Common shares outstanding 53,291 51,723 Common equivalent shares representing shares issuable upon exercise of stock options(1) 3,141 2,700 ------- ------- Total weighted average shares - primary 56,432 54,423 ======= ======= Incremental common equivalent shares (calculated using the higher of end of period or average market value)(2) -- -- ------- ------- Total weighted average shares - fully diluted 56,432 54,423 ======= ======= Primary net income per common and common equivalent share $ 0.32 $ 0.12 ======= ======= Fully diluted net income per common and common equivalent share $ 0.32 $ 0.12 ======= ======= - ------------------- (1) Amount calculated using the treasury stock method and fair market values for stock. (2) This calculation is submitted in accordance with Regulation S-K Item 601(b)(11) although not required by footnote 2 to paragraph 14 of APB Opinion No. 15 because it results in dilution of less than 3%. 20