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
2012-01-31	STEWARD, H LEIGHTON	Director	普通株式	購入	340.932	$106.14
2012-01-27	PLAEGER, FREDERICK J. II	Senior VP & General Counsel	普通株式	購入	4.617	$104.12
2012-01-27	THOMAS, GARY L	Chief Operating Officer	普通株式	購入	27.428	$104.12
2012-01-13	THOMAS, GARY L	Chief Operating Officer	普通株式	購入	27.714	$103.04
2012-01-13	PLAEGER, FREDERICK J. II	Senior VP & General Counsel	普通株式	購入	4.666	$103.04
2011-12-30	PLAEGER, FREDERICK J. II	Senior VP & General Counsel	普通株式	購入	121	$83.73
2011-12-30	DRIGGERS, TIMOTHY K	VP & Chief Financial Officer	普通株式	購入	121	$83.73
2011-12-30	THOMAS, WILLIAM R.	President	普通株式	購入	121	$83.73
2011-12-30	THOMAS, GARY L	Chief Operating Officer	普通株式	購入	13.177	$98.51
2011-12-30	THOMAS, GARY L	Chief Operating Officer	普通株式	購入	121	$83.73
2011-12-30	JANSSEN, ANN D.	VP, Accounting	普通株式	購入	126	$83.73
2011-12-16	THOMAS, GARY L	Chief Operating Officer	普通株式	購入	13.289	$97.68
2011-12-02	DRIGGERS, TIMOTHY K	VP & Chief Financial Officer	普通株式	売却	397	$102.56
2011-12-02	THOMAS, GARY L	Chief Operating Officer	普通株式	購入	12.657	$102.56
2011-11-18	THOMAS, GARY L	Chief Operating Officer	普通株式	購入	1,223.818	$97.84
2011-11-04	THOMAS, GARY L	Chief Operating Officer	普通株式	購入	12.766	$101.68
2011-10-31	PAPA, MARK G	Director, Chairman & CEO	普通株式	購入	17.207	$89.43
2011-10-31	TEXTOR, DONALD F	Director	普通株式	購入	42623	$89.43