NWBO, value-wise is such a small percentage of NW fund holdings I believe he will sell other, more liquid holdings to feed redemptions. NWBO will be his rally....IMO.
I seriously doubt that Woodford has been actively selling, much less selling half a million shares daily.
A large persistent seller would be noticed quickly. Bids would step aside. Price would drop. A price that has not varied more than $0.01 per day for two weeks is not consistent with your hypothesis.