Date Name Title Filing Type Shares Traded Price Total Held
Feb 20, 2015
Director
Director Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 10,000 $177.82 61,750
Aug 22, 2013
Director
Director Form 4 Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3 1,206 $236.64 60,813
May 10, 2012
Director
Director Form 4 Bona fide gift 7,000 -- 60,355
Aug 22, 2013
Director
Director Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 10,000 $33.42 58,431
Aug 10, 2012
Director
Director Form 4 Open market or private sale of non-derivative or derivative security 10,000 $136.15 57,355
Aug 22, 2013
Director
Director Form 4 Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3 1,412 $236.64 57,019
May 06, 2020
Director
Director Form 4 Open market or private sale of non-derivative or derivative security 7,295 $550.58 56,582
May 06, 2020
Director
Director Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 9,212 $520.01 54,629
Sep 14, 2011
Director
Director Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 15,000 $9.17 53,446
Feb 20, 2015
Director
Director Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 4,250 $273.67 51,750

* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.