EXHIBIT 11 CHATTEM, INC. AND SUBSIDIARIES STATEMENT REGARDING COMPUTATION OF PER SHARE EARNINGS (UNAUDITED AND IN THOUSANDS, EXCEPT PER SHARE AMOUNTS) FOR THE THREE MONTHS FOR THE NINE MONTHS ENDED AUGUST 31, ENDED AUGUST 31, ---------------------- ----------------------- As Restated As Restated 1999 1998 1999 1998 ----------- --------- ---------- ----------- NET INCOME: Income before extraordinary loss ....... $ 5,957 $ 4,391 $ 16,455 $ 15,069 Extraordinary loss ..................... (533) (958) (2,117) (2,859) --------- -------- ---------- ---------- Net income ........................... $ 5,424 $ 3,433 $ 14,338 $ 12,210 ========= ======== ========== ========== COMMON SHARES: Weighted average number outstanding .... 9,774 9,483 9,742 9,165 Number issued upon assumed exercise of outstanding stock options and stock warrants ............................. 265 363 295 342 --------- -------- ---------- ---------- Weighted average and dilutive potential number outstanding .................... 10,039 9,846 10,037 9,507 ========= ======== ========== ========== NET INCOME (LOSS) PER COMMON SHARE: Basic: Income before extraordinary loss .... $ .61 $ .46 $ 1.69 $ 1.64 Extraordinary loss .................. (.05) (.10) (.22) (.31) --------- -------- ---------- ---------- Total basic ..................... $ .56 $ .36 $ 1.47 $ 1.33 ========= ======== ========== ========== Diluted: Income before extraordinary loss .... $ .59 $ .45 $ 1.64 $ 1.58 Extraordinary loss .................. (.05) (.10) (.21) (.30) --------- -------- ---------- ---------- Total diluted ................... $ .54 $ .35 $ 1.43 $ 1.28 ========= ======== ========== ==========