自社株取引日	役員・従業員名	役員・従業員の役職	株式の種類	売却／購入	株数	株価
2011-03-15	KENNER, ANDREW	VP - Manufacturing	普通株式	売却	9,319	$47.87
2011-03-14	TAYLOR, JEFFREY L	Sr VP, Polyethylene	普通株式	売却	2,259	$49.93
2011-03-14	TAYLOR, JEFFREY L	Sr VP, Polyethylene	普通株式	売却	200	$49.96
2011-03-14	TAYLOR, JEFFREY L	Sr VP, Polyethylene	普通株式	売却	500	$49.94
2011-03-10	CHAO, JAMES	Director, Chairman, 10% Owner	普通株式	売却	4,000	$0.00
2011-03-09	WALLACE, STEPHEN	VP, General Counsel, Secretary	普通株式	売却	1,388	$50.09
2011-03-09	WALLACE, STEPHEN	VP, General Counsel, Secretary	普通株式	購入	1,388	$0.00
2011-03-09	CHAO, JAMES	Director, Chairman, 10% Owner	普通株式	売却	10,868	$0.00
2011-03-09	WALLACE, STEPHEN	VP, General Counsel, Secretary	普通株式	購入	1,388	$36.10
2011-03-08	MANGIERI, GEORGE J	VP & Chief Accounting Officer	普通株式	売却	1,000	$48.70
2011-03-08	MANGIERI, GEORGE J	VP & Chief Accounting Officer	普通株式	購入	3,225	$0.00
2011-03-08	MANGIERI, GEORGE J	VP & Chief Accounting Officer	普通株式	売却	200	$48.66
2011-03-08	MANGIERI, GEORGE J	VP & Chief Accounting Officer	普通株式	売却	125	$48.65
2011-03-08	MANGIERI, GEORGE J	VP & Chief Accounting Officer	普通株式	売却	1,900	$48.64
2011-03-08	MANGIERI, GEORGE J	VP & Chief Accounting Officer	普通株式	売却	3,225	$14.24
2011-03-07	MANGIERI, GEORGE J	VP & Chief Accounting Officer	普通株式	売却	400	$50.06
2011-03-07	MANGIERI, GEORGE J	VP & Chief Accounting Officer	普通株式	売却	1,901	$14.24
2011-03-07	MANGIERI, GEORGE J	VP & Chief Accounting Officer	普通株式	売却	200	$50.09