Been a long term holder of Sensera . Not really sure what to...

Been a long term holder of Sensera . Not really sure what to make of a situaiton where a Top 20 holder sells a sIgnificant volume when the share price is at all time lows whilst a director has recently bought at higher . Sure , there's the " don't know everyone's individual circumstances "argument but it's natural that this might ring some alarms.
I'm guessing that the elephant on the room might be when ( and now )/ if , SE1 becomes cash flow positive. Despite the earlier statements and commitments about $flow +ve, the latest capital raising presentation , whilst reiterating the sales revenue position, and pipeline, had nothing firm on committment /timeline to $flow +ve.
If any smarter minds than mine, have some thoughts would appreciate to hear. ? .......just not really sure what to make of this .