It is possible, but not advisable, and completely out of the question at this time of the year. The only time to attempt such a move would be when the plant is fully dormant, and even then survival is not assured.

Assuming this is an Acer palmatum/japonicum they have small and shallow root systems, so even relatively large plants can be moved with extreme care - we did just that with five 15-year-old Acer palmatum this last winter. It's really a job for a small JCB though.

You'd also have to water it as you would a new tree for the first year - if it survived.