I looked up their trading activity in RVX over the last several months.  Goldie has been a consistent seller...no buying.  This to me suggests that some client of theirs has been moving out of the stock.

Since June 10 2019, Goldman Sachs was the broker selling 184,511 shares.  GS (or more likely their client) sold 9,600 shares in June.  Sold 5,600 shares in July.  Sold 16,400 shares in August.  And dumped 152,900 in September so far.  

If I look at trading since the start of the year, the other broker that stands out as a net sell is:

Questrade (bought 287k shares, sold 579k shares)

Raymond James (bought 166k shares, sold 439k shares).

The other brokers have been either net buyers, or small sellers.

Not sure what to make of all this...but the one sided selling from Goldman Sachs suggests some rich client is reducing their exposure to RVX before the top line results come out.