NorthWest Biotherapeutics Inc (NWBO)

[JerryCampbell]

There is another very reasonable possibility. In early July, there was a jump in nwbo shares outstanding, presumably from warrant exercise. If those shares were delivered to cover shorts, then there would have been no need to buy in the market.

That's a reasonable explanation that fits the data, and does not require any unsubstantiated assumption of manipulation.