Get Frontier Developments alerts:David John Braben also recently made the following trade(s):On Thursday, September 25th, David John Braben sold 33,038 shares of Frontier Developments stock. On Friday, September 26th, David John Braben bought 33,705 shares of Frontier Developments stock. On Wednesday, September 24th, David John Braben sold 31,181 shares of Frontier Developments stock. On Tuesday, September 23rd, David John Braben sold 27,594 shares of Frontier Developments stock. Frontier Developments Stock PerformanceFrontier Developments stock opened at GBX 459.85 on Friday.