Ann: Change in substantial holding, page-2

Would anyone have any ideas why Van Eyk would sell down about $30 million worth of SBM at a reasonably low point to put it into SLR at a reasonably high point? From what I can see, SBM market cap is about 3 times that of SLR at the moment but then SBM produces 3 times what SLR produce. however the margin SBM makes is substantially more than SLR. I could understand if they invested into SLR around the 25c mark but cannot see much value 50c+. I see tons of value in SBM below $2-