Series and Classes/Contracts Information:
| Existing | |||
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000005064 | PIA BBB Bond Fund | ||
| Class/Contract C000013849 | Managed Account Completion Shares | PBBBX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000005065 | PIA Short-Term Securities Fund | ||
| Class/Contract C000013850 | Advisor Class | PIASX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000005067 | PIA MBS Bond Fund | ||
| Class/Contract C000013852 | Managed Account Completion Shares | PMTGX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000029824 | PIA High Yield Fund | ||
| Class/Contract C000091708 | Institutional Class | PHYSX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000030922 | WBI Tactical BA Fund | ||
| Class/Contract C000095914 | No Load Class | WBADX | |
| Class/Contract C000095915 | Institutional Class | WBBAX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000030923 | WBI Tactical DG Fund | ||
| Class/Contract C000095916 | No Load Class | WBIDX | |
| Class/Contract C000095917 | Institutional Class | WBDGX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000041003 | WBI Tactical BP Fund | ||
| Class/Contract C000127221 | No Load Class | WBPNX | |
| Class/Contract C000127222 | Institutional Class | WBBPX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000041568 | Semper MBS Total Return Fund | ||
| Class/Contract C000129089 | Institutional Class | SEMMX | |
| Class/Contract C000129090 | Investor Class | SEMPX | |
| Class/Contract C000164429 | Class A | SEMOX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000044807 | Semper Short Duration Fund | ||
| Class/Contract C000139162 | Institutional Class | SEMIX | |
| Class/Contract C000139163 | Investor Class | SEMRX | |
EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1031
Type: 24F-2NT/A | Act: 33 | File No.: 333-17391 | Film No.: 18696152