Three Months Ended

Nine Months Ended

September 30,
2011

October 1,
2010

September 30,
2011

October 1,
2010

(Dollars in thousands, except per share amounts)

Numerator:

Net income attributable to Trimble Navigation Ltd.

$

27,971

$

32,845

$

121,352

$

67,096

Denominator:

Weighted average number of common shares used in basic

122,969

119,474

122,485

120,296

earnings per share

Effect of dilutive securities (using treasury stock method):

Common stock options and restricted stock units

2,925

3,395

3,495

3,303

Weighted average number of common shares and dilutive potential common shares used in diluted earnings per

125,894

122,869

125,980

123,599

Basic earnings per share

$

0.23

$

0.27

$

0.99

$

0.56

Diluted earnings per share

$

0.22

$

0.27

$

0.96

$

0.54