Marjorie Taylor bought between 15,001 and 50,000 shares of EXC on 28 August.
Carol Devine Miller sold between 15,001 and 50,000 shares of EXC on 24 July.
John Hoeven bought between 50,001 and 100,000 shares of EXC on 4 November.
David Roe sold between 15,001 and 50,000 shares of EXC on 27 January.
