What do you do when an employee is acting negatively with the team work ?

firstly, Try to find out the reason behind his negative behavior. 

by getting the reason you can solve this issue logically and also convert one negative behavior employee into a loyal and satisfied employee

Isolate them for a while and teach them the importance of team work and reintroduce them later when well acquitted with team work idea.

WE HAVE TO COUNCIL HIM AND TRY TO MAKE HIM UNDERSTAND THE BENEFIT OF TEAM WORK AND MAKE HIM UNDERSTAND HOW THE SUCCESS DEPENDS ON COLLECTIVE TEAM WORK EFFORT

first let me study Employees Attitude

Find the reason why he is acting the way he does. That way, you'll know how to address, mitigate, and reverse the effect of what he's been doing.

Identify the causes of the problem. ... Be open to feedback. ... Give clear directions. ... Write down expectations and specific consequences. ... Monitor progress. ... Plan ahead. ... Stay calm and show respect.

Reason with the said employee and assess the damage, if he/she has done any. If no, be firm and give them a last chance.

 motibate him in a pasitive things,, 

will try to bring him positively if not cooperating will avoid him as we need our team work first

Talk to him, understand the reason, give him a counselling. After all these, still negative action, report to higher management for better approach.

i faced such issues 2years before  with a lady of my team. I was just taking in charge my position ( manager of the department) and she was acting very negatively and was perturbating all the department.

 

I tried to know what was her problem ( it was easy; She was expecting to get my post and my position when she knew that someone from outside the company was recruited...me)So we talked.. discussed...echanged point of views... 2 or 3 meetings At last she was convinced that I had ( I have) more skills, more experiences than she has for this position.  She tried to improve some of her skills ( lake let's say) and I triend to help her..Finally, I recommanded her in another department when I realized that she was ready to be manager. She (now ) is now , grateful and thankful for my help and my understanding.For resume: We need to talk and to listen to each other.