Exhibit 11 ALLMERICA FINANCIAL CORPORATION STATEMENT RE: COMPUTATION OF PER SHARE EARNINGS For the Periods Ended September 30, 1997 and 1996 (in millions, except per share data) (Unaudited) Nine Months Quarter Ended Ended September 30, September 30, 1997 1996 1997 1996 Primary: Average shares outstanding 58.3 50.1 52.9 50.1 Net effect of dilutive stock options based on the treasury stock method using average market price 0.1 0.0 0.1 0.0 ----- ----- ----- ----- TOTALS 58.4 50.1 53.0 50.1 ===== ===== ===== ===== Net income $60.7 $46.7 $114.3 $136.6 ==== ===== ===== ===== Per share amount $1.04 $0.93 $2.16 $2.72 Fully diluted: Average shares outstanding 58.3 50.1 52.9 50.1 Net effect of dilutive stock options based on the treasury stock method using the higher of period end or average market price 0.2 0.0 0.1 0.0 ----- ----- ----- ----- TOTALS 58.5 50.1 53.0 50.1 ===== ===== ===== ===== Net income $60.7 $46.7 $114.3 $136.6 ===== ===== ===== ===== Per share amount $1.04 $0.93 $2.16 $2.72 Page 39