Earnings Per Share

12 Months Ended

Dec. 31, 2011

Earnings Per Share [Abstract]

Earnings Per Share Disclosure

23.       Earnings per share

The following table reconciles net income and the weighted average ordinary shares outstanding for basic and diluted earnings per share for the periods presented:

	2011	2010	2009
	$’M	$’M	$’M
Amounts attributable to Shire plc shareholders
	_________________	_________________	_________________
Income from continuing operations, net of taxes	865.0	588.0	503.8
Loss from discontinued operations	-	-	(12.4)
Net loss attributable to noncontrolling interest in subsidiaries	-	-	0.2
	_________________	_________________	_________________
Numerator for basic earnings per share	865.0	588.0	491.6
Interest on convertible bonds, net of tax 1	33.6	33.5	0.0
	_________________	_________________	_________________
Numerator for diluted earnings per share	898.6	621.5	491.6
	_________________	_________________	_________________
Weighted average number of shares:
	Millions	Millions	Millions
	_________________	_________________	_________________
Basic 2	551.1	546.2	540.7
Effect of dilutive shares:
Share based awards to employees 3	10.9	10.9	7.3
Convertible bonds 2.75% due 2014 4	33.4	33.2	-
	_________________	_________________	_________________
Diluted	595.4	590.3	548.0
	_________________	_________________	_________________

1. For the year to December 31, 2009 interest on the convertible bonds has not been added back as the effect would be anti-dilutive.

2. Excludes shares purchased by the ESOT and presented by the Company as treasury stock.

3. Calculated using the treasury stock method.

4. Calculated using the 'if-converted' method.

Year to December 31,	2011	2010	2009
	_______________	_______________	_______________
Earnings per ordinary share - basic
Earnings from continuing operations attributable to Shire plc shareholders	156.9c	107.7c	93.2c
Loss from discontinued operations attributable to Shire plc shareholders	-	-	(2.3c)
	_______________	_______________	_______________
Earnings per ordinary share attributable to Shire plc shareholders - basic	156.9c	107.7c	90.9c
	_______________	_______________	_______________
Earnings per ordinary share - diluted
Earnings from continuing operations attributable to Shire plc shareholders	150.9c	105.3c	91.9c
Loss from discontinued operations attributable to Shire plc shareholders	-	-	(2.2c)
	_______________	_______________	_______________
Earnings per ordinary share attributable to Shire plc shareholders – diluted	150.9c	105.3c	89.7c
	_______________	_______________	_______________

The share equivalents not included in the calculation of the diluted weighted average number of shares are shown below:

	2011	2010	2009
	No. of shares	No. of shares	No. of shares
	Millions	Millions	Millions
	_________________	_________________	_________________
Share awards1	2.9	5.4	16.4
Convertible bonds 2.75% due 20142	-	-	33.2
	_________________	_________________	_________________

1. Certain stock options have been excluded from the calculation of diluted EPS because (a) their exercise prices exceeded Shire plc's average share price during the calculation period or (b) satisfaction of the required performance/market conditions cannot be measured until the conclusion of the performance period.

2. For the year toDecember 31, 2009 the ordinary shares underlying the convertible bonds have not been included in the calculation of the diluted weighted average number of shares, as the effect of their inclusion would be anti-dilutive.