noob question, page-8

Your NTIs represent the shares you already own.  Nothing will change.

If you don't want any more NTI shares don't do anything.  Your NTIRs will expire and disappear again from your holdings.

You can exercise some or all of your NTIRs by following the instructions in the exercise form that was sent to you personally.  Don't use any document that wasn't sent individually to you because the form is pre-filled with your identification numbers.

Any NTIRs that you exercise will convert into NTIs after the completion date.  The rest of the NTIRs (if any) will expire.  Your NTI total will increase by the number of NTIRs that you exercised.

It's all in the offer document, but includes a lot of detail and explanation and regulatory statements and... oh... you're still awake?