There are various reasons why aid may not appear on your statement. Your statement will only display the aid that was complete at the time of the billing.
You can check the status of your aid by logging in to MyDenison and select My Financial Aid (My Apps tab). This is where you should start.
Once your aid is complete it will feed to your account and will appear in your Account Summary by Term. Please note that any federal aid will not feed to your account until 10 days prior to classes so will not be visible in your Account Summary by Term until 8/7.