C# - String Manipulation In Regex?

i have a problem in string manipulation

here is the code

string str = "LDAP://company.com/OU=MyOU1 Control,DC=MyCompany,DC=com";
Regex regex = new Regex("OU=\w+");
var result = regex.Matches(str);
var strList = new List<string>();
foreach (var item in result)
{
strList.Add(item.ToString().Remove(0,3));
}
Console.WriteLine(string.Join("/",strList));

the result i am getting is "MyOU1" instead of getting "MyOU1 Control"