Furniture, There are two reasons for funds to do this. Firstly...

Furniture,

There are two reasons for funds to do this. Firstly is if the fund needs liquidity desperately to survive and pay bills, they will sell down the worst performers. Secondly is called selective capital usage, if a position is under performing they will sell to buy an existing or new position with better growth prospects without even looking at fundamentals.

there is one more, but i consider it unlikely in this case, but also sometimes if a stock drops below a certain market cap funds are forced to sell due to their operating philsophy.