Do I need to file this 1099-B?

Employer sold off stock to pay taxes and I received a 1099-B regarding this. The term and type is listed on the paper copy I received as  "B- Short-term transaction in which basis was NOT reported to the IRS".

 

Do I need to file this on my return?

 

The finance department at my employer basically told me I do not need to file it, however, in the past I have filed every 1099-B I have received. This one is just more confusing trying to figure out cost basis, etc. since this wasn't me (it was my employer) selling stock. 

 

Thanks