Charles Alistair.Neilson Butler, Chief Executive Officer at Market Tech Holdings, holds 46.36K shares in essensys PLC (Ticker: GB:ESYS), holds 192.41K shares in Market Tech Holdings (Ticker: GB:MKT). Most recently, Charles Alistair.Neilson Butler Bought ― shares of essensys PLC on Apr 09, 2020 for an estimated value of 20.00K.