I am more thinking they can see some value in this company that is why they are investing in it. Bearing in mind that everybody seems to be saying that PDN management is top quality therefore DYL must be a good investment.
Another reason I can see in them buying over 10% of this company is that they might think that they will be a takeover target in the future.
Anyway seeing PDN buying into DYL looks to me as a vote of confidence in DYL that is why I bought DYL today