Three Months Ended September 30,

Nine Months Ended September 30,

2012

2011

2012

2011

Net income attributable to Bruker Corporation, as reported

$

39.7

$

19.8

$

64.7

$

53.2

Weighted average shares outstanding:

Weighted average shares outstanding-basic

166.0

165.6

165.9

165.4

Effect of dilutive securities:

Stock options and restricted stock

1.3

1.4

1.6

167.3

166.9

167.3

167.0

Net income per common share attributable to Bruker Corporation shareholders:

Basic and diluted

$

0.24

$

0.12

$

0.39

$

0.32