Grades are not mailed to you at the end of the quarter. You can access your unofficial transcript (grades) through the Student Records KIOSK. All grades for the quarter are usually available on the Tuesday following finals week. If you have any fines against your account you will be blocked from viewing your grades.

You'll Need Your Student ID number and Global PIN...

A Student Identification number (SID) and a Global PIN number were assigned to you when you were officially admitted as a new GHC student. When used together, your SID and Global PIN give you access to your personal academic information through the Information Kiosk. (i.e. your grades, financial aid info, degree audit, etc). Your global PIN remains the same unless you change it. This is not the number you use to register for classes!

These numbers were sent to you via mail but, if you forget them you can take a picture ID to the Admissions and Records Office where they can provide the information.
For security reasons, this information cannot be e-mailed to you or given out over the phone.