Welcome to the world of algorithmic trading. Nothing sinister here. Algo trades just make pip profits for the robotic managers.
The price movements are caused by a number of factors including those long term holders and rampers in this forum who trade a portion of their shares. You can see them ramping as and when it’s suits them. They are quiet when they have sold and want to buy back.
So don’t blame accumulators for manipulating to bring the price down.