The dividend generally goes ex between 23-26 March (one of 4 annual div payments @ 3 cents each this year).
Whilst it is obvious that a seller is about I doubt they are selling to themselves - I strongly suspect an institutional buyer is shrewdly accumulating these now . I've got a couple of orders in place and one executed . This CSM pipeline is a worth 9 times the current market cap and the asset grap for the CSM assets has not slowed .