================================================================================ SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM N-PX ANNUAL REPORT OF PROXY VOTING RECORD OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-05531 ---------------------------- MassMutual Participation Investors (Exact name of registrant as specified in charter) ---------------------------- 1500 Main Street Suite 600 Springfield, MA 01115 (Address of principal executive offices) (Zip code) -------------------------------------------------------------------------------- Rodney J. Dillman, Vice President and Secretary 1500 Main Street, Suite 2800, Springfield, MA 01115 -------------------------------------------------------------------------------- (name and address of agent for service) Registrant's telephone number, including area code: 413-226-1000 Date of fiscal year end: December 31 Date of reporting period: July 1, 2005 - June 30, 2006 ================================================================================ ITEM 1. PROXY VOTING RECORD DISTRIBUTED ENERGY SYSTEMS CORP. Ticker: DESC Security ID: 25475V104 Meeting Date: JUN 6, 2006 Meeting Type: Annual Record Date: APR 12, 2006 # Proposal Mgt Rec Vote Cast Sponsor 1.1 Elect Director Walter W. Schroeder For For Management 1.2 Elect Director Robert W. Shaw Jr. For For Management 2. Ratify Auditors For For Management ---------------------------------------------------------------------------------------- RENT-WAY, INC. Ticker: RWY Security ID: 76009U104 Meeting Date: MAR 8, 2006 Meeting Type: Annual Record Date: JAN 20, 2006 # Proposal Mgt Rec Vote Cast Sponsor 1.1 Elect Director William Lerner For For Management 1.2 Elect Director Marc W. Joseffer For For Management 1.3 Elect Director Jacqueline E. Woods For For Management 2. Approve omnibus Stock Plan For For Management 3. Ratify Auditors For For Management ---------------------------------------------------------------------------------------- THERAVANCE, INC. Ticker: THRX Security ID: 88338T104 Meeting Date: APR 26, 2006 Meeting Type: Annual Record Date: MAR 1, 2006 # Proposal Mgt Rec Vote Cast Sponsor 1.1 Elect Director P. Roy Vagelos, M.D. For No Vote Management 1.2 Elect Director Rick E. Winningham For No Vote Management 1.3 Elect Director Julian C. Baker For No Vote Management 1.4 Elect Director Jeffrey M. Drazan For No Vote Management 1.5 Elect Director R.V. Gunderson, Jr. For No Vote Management 1.6 Elect Director Arnold J. Levine, Ph.D. For No Vote Management 1.7 Elect Director Ronn C. Loewenthal For No Vote Management 1.8 Elect Director Eve E. Slater, M.D. For No Vote Management 1.9 Elect Director William H. Waltrip For No Vote Management 1.10 Elect Director G.M. Whitesides, Ph.D. For No Vote Management 1.11 Elect Director William D. Young For No Vote Management 2. Ratify Auditors For No Vote Management SIGNATURES [See General Instruction F] 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) MassMutual Participation Investors ---------------------------------- By (Signature and Title)* /s/ Clifford M. Noreen ---------------------- Clifford M. Noreen, President Date: August 28, 2006 --------------- * Print the name and title of each signing officer under his or her signature.