Everyone put their own claims on the table and there were no big moves, the source said, speaking on condition of anonymity because the talks were confidential.
No progress has been made and the story continues, the source added.
Airbus, part of aerospace group EADS, and a group of seven NATO nations met on Thursday and Friday to discuss the planemaker's request for billions of euros of extra support for the loss-making project and agreed to meet again on Tuesday.
Germany said the talks had been constructive, but repoeated its opposition to a compromise proposal to split the 20 billion euro plane order into two tranches, saying this would add cost. (Reporting by Tim Hepher)