X0303 4 2008-09-25 0 0000275694 MASSMUTUAL CORPORATE INVESTORS MCI 0001194961 CRANDALL ROGER W BABSON CAPITAL MANAGEMENT LLC 1500 MAIN ST PO BOX 15189 SPRINGFIELD MA 01115-5189 0 1 0 1 Officer/ Dir Issuer & Adviser Officer/ Dir Issuer & Adviser Capital Stock 2000.00 D MassMutual Non-Qualified Thrift Plan 0.00 2008-09-25 4 J 0 16.88 25.23 A Capital Stock 16.88 12685.85 D Babson Capital Non Qualified Thrift Plan 0.00 Capital Stock 29193.64 29193.64 D Babson Capital and MassMutual each offer a non-qualified compensation deferral plan where certain officers are permitted to defer a portion of their compensation into the plans. Deferred compensation into a plan is allocated among one or more investment options at the election of the plan participant. Each plan has an investment option that derives its value from the market value of MassMutual Corporate Investors' common shares (and includes the value of reinvested dividends). However, pursuant to the terms of the plans, neither the plans nor the participants have an actual ownership interest in the common shares. The shares beneficially owned include the number of shares of MassMutual Corporate Investors represented by the value of the MassMutual Corporate Investors investment option under the plan held by the plan participant. Specific transactions itemized herein may reflect a change in plan value on account of the reinvestment of investment option dividend credits. Exercisable only upon termination, retirement or other plan permitted event. Plan holdings may be "liquidated" and reallocated into other plan investment options by the plan participant. The derivative has no actual securities underlying the plan agreement, which is entirely notional. By: Ann Malloy as Attorney-in-fact for 2008-09-26