Shareholders’ Equity

Our shareholders have authorized 50,000,000 preferred shares at $0.01 par value, of which none are issued or outstanding, and 200,000,000 ordinary shares of common stock at $0.01 par value, of which 48,442,296 are issued and outstanding at December 28, 2018.

The ordinary share activity for the years ended December 28, 2018 and December 29, 2017 is summarized as follows:



	Year ended
	December 28, 2018		December 29, 2017
Ordinary shares issued/(retired) as a result of:
Stock option exercises	38,500		59,000
Restricted stock awards	22,991		14,294
Restricted and performance stock units	351,856		251,303
Ordinary share repurchase and retirement	(730,532	)	(2,822,022	)

On February 21, 2018, our Board of Directors approved a three-year stock repurchase program of up to $300 million of our ordinary shares. We have repurchased $29.4 million of ordinary shares, or 730,532 ordinary shares, under the aforementioned repurchase program and retired all the repurchased shares. As of December 28, 2018, we have a maximum dollar value of $280.4 million that we can purchase under the approved stock repurchase program.

The following represents a summary of repurchase activity during years ended December 28, 2018 and December 29, 2017 (U.S. dollars in millions, except share and per share data):



	Year ended
	December 28, 2018					December 29, 2017
	Shares	USD		Average price per share		Shares	USD		Average price per share
Year ended:	730,532	$	29.4	$	40.26	2,822,022	$	142.0	$	50.31

Subsequent to the year ended December 28, 2018, there were no ordinary share repurchases.

The following is a summary of the dividends declared per share for the years ended December 28, 2018 and December 29, 2017:



Year ended
December 28, 2018			December 29, 2017
Dividend Declared Date	Cash Dividend Declared, per Ordinary Share		Dividend Declared Date	Cash Dividend Declared, per Ordinary Share
December 7, 2018	$	0.15	December 8, 2017	$	0.15
September 7, 2018	$	0.15	September 8, 2017	$	0.15
June 1, 2018	$	0.15	June 2, 2017	$	0.15
March 30, 2018	$	0.15	March 31, 2017	$	0.15

We paid $29.0 million in dividends during the year ended December 28, 2018 and $30.1 million during the year ended December 29, 2017.