My stock option was granted to me when I worked in MA, transferred to the same company in NJ later. Moved back to MA in 2006 and work for a different company, exercised my stock option in the beginning of 2007. NJ tax was deducted from the W-2 form from my previous company. Do I have to pay this tax as non resident in NJ? If not, how can I get it back? Thanks in advance