The filing today shows ownership by Eastern of 1,881,381 shares so it appears that they recently purchased shares totaling 1,093,892. This seems to be confirmed in an article today FairHerald which says:
January 18, 2017 Michael Collier 13GD Report: Learn Why Eastern Capital Ltd Just Purchased Vericel Corp Stake? " The New Eastern Capital Ltd Holding in Vericel Corp
Eastern Capital Ltd filed with the SEC SC 13G form for Vericel Corp. The form can be accessed here: 000140840817000002. As reported in Eastern Capital Ltd’s form, the filler as of late owns 5.5% or 1,881,381 shares of the -company.
Vericel Corp stake is a new one for them and it was filed because of activity on January 8, 2017. We feel this shows Eastern Capital Ltd’s positive view for the stock."