Earnings Per Share

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Earnings Per Share Disclosure

22.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:

	2012	2011	2010
	$’M	$’M	$’M
	_________________	_________________	_________________
Numerator for basic earnings per share	745.4	865.0	588.0
Interest on convertible bonds, net of tax	31.3	33.6	33.5
	_________________	_________________	_________________
Numerator for diluted earnings per share	776.7	898.6	621.5
	_________________	_________________	_________________
Weighted average number of shares:
	Millions	Millions	Millions
	_________________	_________________	_________________
Basic 1	555.4	551.1	546.2
Effect of dilutive shares:
Share based awards to employees 2	4.6	10.9	10.9
Convertible bonds 2.75% due 2014 3	33.5	33.4	33.2
	_________________	_________________	_________________
Diluted	593.5	595.4	590.3
	_________________	_________________	_________________

1. Excludes shares purchased by the EBT and under the share buy-back program and presented by Shire as treasury stock.

2. Calculated using the treasury stock method.

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

Year to December 31,	2012	2011	2010
	_______________	_______________	_______________
Earnings per ordinary share - basic
Earnings per ordinary share attributable to Shire plc shareholders - basic	134.2c	156.9c	107.7c
	_______________	_______________	_______________
Earnings per ordinary share - diluted
	_______________	_______________	_______________
Earnings per ordinary share attributable to Shire plc shareholders – diluted	130.9c	150.9c	105.3c
	_______________	_______________	_______________

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

	2012	2011	2010
	No. of shares	No. of shares	No. of shares
	Millions	Millions	Millions
	_________________	_________________	_________________
Share based awards to employees1	6.7	2.9	5.4
	_________________	_________________	_________________

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) the required performance conditions werenotsatisfiedas at the balance sheet date.