X0101 EFFECT 33 LIVE 2009-03-30 15:30:00

N-14

0000078713 PIONEER FUND /MA/ 333-157321 0000078713 PIONEER FUND /MA/ S000003991 Pioneer Fund C000011118 Pioneer Fund: Class A 0000880934 REGIONS MORGAN KEEGAN SELECT FUNDS S000009992 Regions Morgan Keegan Select Core Equity Fund C000027633 Class A 0000078713 PIONEER FUND /MA/ S000003991 Pioneer Fund C000011120 Pioneer Fund: Class C 0000880934 REGIONS MORGAN KEEGAN SELECT FUNDS S000009992 Regions Morgan Keegan Select Core Equity Fund C000027634 Class C 0000078713 PIONEER FUND /MA/ S000003991 Pioneer Fund C000011121 Pioneer Fund: Class Y 0000880934 REGIONS MORGAN KEEGAN SELECT FUNDS S000009992 Regions Morgan Keegan Select Core Equity Fund C000027635 Class I