Hi,
As we can see from our database your company has several user accounts, so you should contact your IT department and they'll do the migration process for you (download the installer available for your license, remove the existing installation and activate the plug-in on your new computer).
Anyway, if you want to check the serial number and the subscription end date for your license, you can find it under Licenses tab of Itoo Software License Manager by selecting the license and clicking on the Details... button.
Kind regards,