Series and Classes/Contracts Information:
| Existing | |||
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000000021 | American Trust Allegiance Fund | ||
| Class/Contract C000000034 | Investor Class | ATAFX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000005062 | Capital Advisors Growth Fund | ||
| Class/Contract C000013847 | Investor Class | CIAOX | |
| 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 S000005066 | PIA Moderate Duration Bond Fund | ||
| Class/Contract C000013851 | Advisor Class | PIATX | |
| 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 S000005071 | The Teberg Fund | ||
| Class/Contract C000013857 | Investor Class | TEBRX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000005073 | Chase Growth Fund | ||
| Class/Contract C000013859 | Class N | CHASX | |
| Class/Contract C000043306 | Institutional Class | CHAIX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000005074 | Chase Mid-Cap Growth Fund | ||
| Class/Contract C000013860 | Class N | CHAMX | |
| Class/Contract C000110232 | Institutional Class | CHIMX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000005075 | Edgar Lomax Value Fund | ||
| Class/Contract C000013862 | Investor Class | LOMAX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000013666 | Phocas Real Estate Fund | ||
| Class/Contract C000037424 | Phocas Real Estate Fund | PHREX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000018427 | Huber Capital Equity Income Fund | ||
| Class/Contract C000050919 | Investor Class | HULIX | |
| Class/Contract C000106239 | Institutional Class | HULEX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000018428 | Huber Capital Small Cap Value Fund | ||
| Class/Contract C000050920 | Investor Class | HUSIX | |
| Class/Contract C000106240 | Institutional Class | HUSEX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000022607 | Davidson Multi-Cap Equity Fund | ||
| Class/Contract C000065364 | Class A | DFMAX | |
| Class/Contract C000065365 | Class C | DFMCX | |
| Class/Contract C000132969 | Class I | DFMIX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000027249 | Poplar Forest Partners Fund | ||
| Class/Contract C000082237 | Class A | PFPFX | |
| Class/Contract C000082238 | Institutional Class | IPFPX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000029818 | O'Shaughnessy All Cap Core Fund | ||
| Class/Contract C000091688 | Class A | OFAAX | |
| Class/Contract C000091689 | Class C | OFACX | |
| Class/Contract C000091690 | Class I | OFAIX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000029819 | O'Shaughnessy Enhanced Dividend Fund | ||
| Class/Contract C000091691 | Class A | OFDAX | |
| Class/Contract C000091692 | Class C | OFDCX | |
| Class/Contract C000091693 | Class I | OFDIX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000029820 | O'Shaughnessy Global Equity Fund | ||
| Class/Contract C000091694 | Class A | ||
| Class/Contract C000091695 | Class I | ||
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000029821 | O'Shaughnessy International Equity Fund | ||
| Class/Contract C000091696 | Class I | ||
| Class/Contract C000091697 | Class A | ||
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000029822 | O'Shaughnessy Small/Mid Cap Growth Fund | ||
| Class/Contract C000091698 | Class A | OFMAX | |
| Class/Contract C000091699 | Class I | OFMIX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000029824 | PIA High Yield Fund | ||
| Class/Contract C000091707 | Class A | ||
| Class/Contract C000091708 | Institutional Class | PHYSX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000029825 | PIA High Yield (MACS) Fund | ||
| Class/Contract C000091709 | Managed Account Completion Shares | ||
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000030114 | Meydenbauer Dividend Growth Fund | ||
| Class/Contract C000092486 | No Load Class | CMDGX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000030916 | Davidson Equity Income Fund | ||
| Class/Contract C000095903 | Class A | ||
| Class/Contract C000095904 | Class C | ||
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000030917 | Davidson Small/Mid Equity Fund | ||
| Class/Contract C000095905 | Class A | DFSAX | |
| Class/Contract C000095906 | Class C | DFSOX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000030918 | Davidson Intermediate Fixed Income Fund | ||
| Class/Contract C000095907 | Class A | ||
| Class/Contract C000095908 | Class I | ||
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000030922 | WBI Absolute Return Balanced Fund | ||
| Class/Contract C000095914 | No Load Class | WBADX | |
| Class/Contract C000095915 | Institutional Class | WBBAX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000030923 | WBI Absolute Return Dividend Growth Fund | ||
| Class/Contract C000095916 | No Load Class | WBIDX | |
| Class/Contract C000095917 | Institutional Class | WBDGX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000031090 | Alpha Defensive Alternatives Fund | ||
| Class/Contract C000096439 | Class I | ACDEX | |
| Class/Contract C000096440 | Class R | ||
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000031091 | Alpha Opportunistic Alternatives Fund | ||
| Class/Contract C000096441 | Class I | ACOPX | |
| Class/Contract C000096442 | Class R | ||
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000031753 | Vivaldi Orinda Hedged Equity Fund | ||
| Class/Contract C000098870 | Class A | OHEAX | |
| Class/Contract C000098872 | Class I | OHEIX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000032592 | Fort Pitt Capital Total Return Fund | ||
| Class/Contract C000100439 | Fort Pitt Capital Total Return Fund | FPCGX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000033043 | SiM Dynamic Allocation Diversified Income Fund | ||
| Class/Contract C000101881 | Class A | SDDAX | |
| Class/Contract C000101882 | Class C | SDDCX | |
| Class/Contract C000101883 | Class I | ||
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000033045 | SiM Dynamic Allocation Equity Income Fund | ||
| Class/Contract C000101887 | Class A | SDEAX | |
| Class/Contract C000101888 | Class C | SDECX | |
| Class/Contract C000101889 | Class I | ||
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000034263 | O'Shaughnessy Emerging Markets Fund | ||
| Class/Contract C000105574 | Class A Shares | ||
| Class/Contract C000105575 | Class C Shares | ||
| Class/Contract C000105576 | Class I Shares | OFEMX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000035415 | Scharf Fund | ||
| Class/Contract C000108787 | Institutional Class | LOGIX | |
| Class/Contract C000152038 | Retail Class | ||
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000036614 | Vivaldi Orinda Macro Opportunities Fund | ||
| Class/Contract C000111961 | Class A | OMOAX | |
| Class/Contract C000111962 | Class I | OMOIX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000037381 | Kellner Merger Fund | ||
| Class/Contract C000115420 | Investor Class | GAKAX | |
| Class/Contract C000115421 | Institutional Class | GAKIX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000037501 | Logan Capital Large Cap Growth Fund | ||
| Class/Contract C000115769 | Investor Class | LGNHX | |
| Class/Contract C000115770 | Institutional Class | LGNGX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000037502 | Logan Capital International Fund | ||
| Class/Contract C000115771 | Investor Class | ||
| Class/Contract C000115772 | Institutional Class | ||
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000037503 | Logan Capital Small Cap Growth Fund | ||
| Class/Contract C000115773 | Investor Class | ||
| Class/Contract C000115774 | Institutional Class | ||
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000037504 | Logan Capital Large Cap Core Fund | ||
| Class/Contract C000115775 | Investor Class | ||
| Class/Contract C000115776 | Institutional Class | ||
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000037865 | C Tactical Dynamic Fund | ||
| Class/Contract C000116863 | Class A | ||
| Class/Contract C000116864 | Investor Class | ||
| Class/Contract C000116865 | Institutional Class | TGIFX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000038165 | PIA Short Duration Bond Fund | ||
| Class/Contract C000117709 | Class A | ||
| Class/Contract C000117710 | Class I | ||
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000038386 | Logan Capital Long/Short Fund | ||
| Class/Contract C000118417 | Institutional Class | LGNLX | |
| Class/Contract C000118418 | Investor Class | LGNMX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000038872 | Shenkman Short Duration High Income Fund | ||
| Class/Contract C000119634 | Class A | SCFAX | |
| Class/Contract C000119635 | Class C | SCFCX | |
| Class/Contract C000119636 | Institutional Class | SCFIX | |
| Class/Contract C000126960 | Class F | SCFFX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000039416 | Huber Capital Diversified Large Cap Value Fund | ||
| Class/Contract C000121467 | Investor Class | HUDIX | |
| Class/Contract C000121468 | Institutional Class | HUDEX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000039481 | Kellner Event Fund | ||
| Class/Contract C000121609 | Investor Class | KEFAX | |
| Class/Contract C000121610 | Inactive Class (Investor Class) | ||
| Class/Contract C000121611 | Institutional Class | KEFIX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000039497 | Scharf Balanced Opportunity Fund | ||
| Class/Contract C000121649 | Investor Class | LOGOX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000041003 | WBI Absolute Return Balanced Plus Fund | ||
| Class/Contract C000127221 | No Load Shares | WBPNX | |
| Class/Contract C000127222 | Institutional Class | WBBPX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000041004 | WBI Absolute Return Dividend Income Fund | ||
| Class/Contract C000127223 | No Load Shares | WBDNX | |
| Class/Contract C000127224 | Institutional Class | WBDIX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000041252 | Orinda Income Opportunities Fund | ||
| Class/Contract C000127906 | Class A | OIOAX | |
| Class/Contract C000127907 | Class I | OIOIX | |
| Class/Contract C000131940 | Class D | OIODX | |
| 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 | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000043369 | Kellner Long/Short Fund | ||
| Class/Contract C000134279 | Class A | KLSAX | |
| Class/Contract C000134280 | Institutional Class | KLSIX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000044707 | Pzena Mid Cap Focused Value Fund | ||
| Class/Contract C000138961 | Investor Class | PZVMX | |
| Class/Contract C000138962 | Institutional Class | PZIMX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000044708 | Pzena Emerging Markets Focused Value Fund | ||
| Class/Contract C000138963 | Investor Class | PZVEX | |
| Class/Contract C000138964 | Institutional Class | PZIEX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000044709 | Pzena Long/Short Value Fund | ||
| Class/Contract C000138965 | Investor Class | PZVLX | |
| Class/Contract C000138966 | Institutional Class | PZILX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000044710 | Wasmer Schroeder High Yield Municipal Fund | ||
| Class/Contract C000138967 | Institutional Class | WSHYX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000044807 | Semper Short Duration Fund | ||
| Class/Contract C000139162 | Institutional Class | SEMIX | |
| Class/Contract C000139163 | Investor Class | SEMRX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000046127 | Scharf Global Opportunity Fund | ||
| Class/Contract C000144365 | Retail Class | WRLDX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000046128 | Shenkman Floating Rate High Income Fund | ||
| Class/Contract C000144368 | Institutional Class | SFHIX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000047728 | Poplar Forest Outliers Fund | ||
| Class/Contract C000149953 | Class A | PFOFX | |
| Class/Contract C000149954 | Institutional Class | IPFOX | |
| Status | Name | Ticker Symbol | |
| CIK 0001027596 | |||
| Series S000047729 | Poplar Forest Cornerstone Fund | ||
| Class/Contract C000149955 | Class A | PFCFX | |
| Class/Contract C000149956 | Institutional Class | IPFCX | |
EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1031
Type: 497J | Act: 33 | File No.: 333-17391 | Film No.: 151084870