Exhibit 11 MOBILE MINI, INC. STATEMENT RE: COMPUTATION OF EARNINGS PER SHARE Nine Months Ended Three Months Ended September 30, September 30, 1996 1995 1996 1995 ------------------------------------------------------------------------- PRIMARY: Common Shares outstanding, beginning of year 4,835,000 4,835,000 6,739,324 4,835,000 Effect of weighting shares: Conversion of Series A preferred stock 1,902,010 - - - Weighted average number of common ------------------------------------------------------------------------- shares and common share equivalents outstanding 6,737,010 4,835,000 6,739,324 4,835,000 ========================================================================= Net Income available for common stock $187,489 $513,365 $389,096 $276,362 ========================================================================= Net Income per common share and common share equivalent (Note 1) $0.03 $0.11 $0.06 $0.06 ========================================================================= FULLY DILUTED: Common Shares outstanding, beginning of year 4,835,000 4,835,000 6,739,324 4,835,000 Effect of weighting shares: Conversion of Series A preferred stock 1,902,010 - - - Weighted average number of common ------------------------------------------------------------------------- shares and common share equivalents outstanding 6,737,010 4,835,000 6,739,324 4,835,000 ========================================================================= Net Income available for common stock $187,489 $513,365 $389,096 $276,362 ========================================================================= Net Income per common share and common share equivalent (Note 1) $0.03 $0.11 $0.06 $0.06 ========================================================================= Note 1 - Net income per common share and common share equivalent calculated after effect of extraordinary item. 14