Exhibit 11A GATX CORPORATION AND SUBSIDIARIES COMPUTATION OF NET INCOME PER SHARE OF COMMON STOCK AND COMMON STOCK EQUIVALENTS In Millions, Except Per Share Amounts Three Months Ended Nine Months Ended September 30 September 30 ---------------- --------------- 1996 1995 1996 1995 ------- ------- ------- ------ Average number of shares of Common Stock outstanding .......................... 20.2 20.1 20.2 20.0 Shares issuable upon assumed exercise of stock options, reduced by the number of shares which could have been purchased with the proceeds from exercise of such options ...................................... .3 .4 .3 .3 ----- ----- ----- ----- Total shares .......................................... 20.5 20.5 20.5 20.3 ===== ===== ===== ===== Net income ............................................ $33.4 $26.5 $83.8 $82.1 Deduct - Dividends paid and accrued on Preferred Stock ................................... 3.3 3.3 9.9 9.9 ----- ----- ----- ----- Net income, as adjusted ............................... $30.1 $23.2 $73.9 $72.2 ===== ===== ===== ===== Net income per share .................................. $1.47 $1.13 $3.61 $3.55 ===== ===== ===== ===== -14-