UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-PX ANNUAL REPORT OF PROXY VOTING RECORD OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act file number 811-21569 ----- Pioneer Ibbotson Asset Allocation Series - ---------------------------------------------------- (Exact name of registrant as specified in charter) 60 State Street Boston, MA 02109 - ---------------------------------------------------- (Address of principal executive offices) Terrence J. Cullen 60 State Street Boston, MA 02109 - ---------------------------------------------------- (Name and address of agent for service) Registrant's telephone number, including area code: (617) 742-7825 Date of fiscal year end: July 31 Date of reporting period: July 1, 2009 to June 30, 2010 SIGNATURES Pursuant to the requirements of the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. (Registrant) Pioneer Ibbotson Asset Allocation Series By (Signature and Title) /s/ John F. Cogan, Jr. ------------------------- John F. Cogan, Jr., Chairman and President Date August 19, 2010 ---------------- ================= PIONEER IBBOTSON AGGRESSIVE ALLOCATION FUND ================== PIONEER MID-CAP GROWTH FUND Ticker: Security ID: 723751400 Meeting Date: JAN 20, 2010 Meeting Type: Special Record Date: NOV 13, 2009 # Proposal Mgt Rec Vote Cast Sponsor 1 Approve Merger of Funds For For Management ================ PIONEER IBBOTSON CONSERVATIVE ALLOCATION FUND ================= PIONEER MID-CAP GROWTH FUND Ticker: Security ID: 723751400 Meeting Date: JAN 20, 2010 Meeting Type: Special Record Date: NOV 13, 2009 # Proposal Mgt Rec Vote Cast Sponsor 1 Approve Merger of Funds For For Management =================== PIONEER IBBOTSON GROWTH ALLOCATION FUND ==================== PIONEER MID-CAP GROWTH FUND Ticker: Security ID: 723751400 Meeting Date: JAN 20, 2010 Meeting Type: Special Record Date: NOV 13, 2009 # Proposal Mgt Rec Vote Cast Sponsor 1 Approve Merger of Funds For For Management ================== PIONEER IBBOTSON MODERATE ALLOCATION FUND =================== PIONEER MID-CAP GROWTH FUND Ticker: Security ID: 723751400 Meeting Date: JAN 20, 2010 Meeting Type: Special Record Date: NOV 13, 2009 # Proposal Mgt Rec Vote Cast Sponsor 1 Approve Merger of Funds For For Management ========== END NPX REPORT