As a sub contractor do I file a mechanics lien or does the GC file it? The contract is between the GC & homeowner

The homeowner is refusing to pay what is owed for work done on his property. We are a sub contractor & are paid by the GC who actually has the contract with the owner. Monies are owed to multiples subcontractors as well as the GC. The GC is planning to file a mechanics lien; do we as a subcontractor also need to file a lien or does the GC list all outstanding debt owed to himself & his subs?