13 March $21 Call contracts ... right?
If so, you can roll them up at a credit and keep the shares.
This AM someone is buying March $21 and selling March $22 calls. So far they have bought 7k $21 and sold 33k of the $22.
They seem to be doing the same for Apr. Buying the $21 and selling the $22. Appears to be a BULL CALL SPREAD for Mar and Apr.