Susan M Collins bought between 15,001 and 50,000 shares of SE on 7 May.
David A Perdue , Jr sold between 15,001 and 50,000 shares of SE on 27 June.
David A Perdue , Jr sold between 15,001 and 50,000 shares of SE on 12 September.
David A Perdue , Jr sold between 15,001 and 50,000 shares of SE on 18 November.
