Cover to Sell transaction

My company performed a cover to sell transaction on by behalf.  The 1099-B only shows description of property, date sold, and proceed amount.  Also, the Noncovered security box is checked.

The stocks awarded me as part of my compensation package, is also included on my W-2 so therefore I already paid taxes on the amount.  What do I report for the shares sold?  Is it a short term transaction?  And do I list date acquired the same as the sold date?  And what about cost basis - would that be the the cost per share times the number of shares?  If so, then the basis would be the same as the proceeds - right?