================================================================================ SCHEDULE 14A Information Required in Proxy Statement Schedule 14A Information Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.___) Filed by the Registrant [X] Filed by a Party other than the Registrant [ ] Check the appropriate box: [ ] Preliminary Proxy Statement [ ] Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) [X] Definitive Proxy Statement [ ] Definitive Additional Materials [ ] Soliciting Material Pursuant to ss.240.14a-11(c) or ss.240.14a-12 MassMutual Corporate Investors ------------------------------- (Name of Registrant as Specified In Its Charter) -------------------------------------------------------------------------------- (Name of Person(s) Filing Proxy Statement if other than the Registrant) Payment of Filing Fee (Check the appropriate box): [X] No fee required. [ ] Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11. 1) Title of each class of securities to which transaction applies: ------------------------------------------------------------------------- 2) Aggregate number of securities to which transaction applies: ------------------------------------------------------------------------- 3) Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (Set forth the amount on which the filing fee is calculated and state how it was determined): ------------------------------------------------------------------------- 4) Proposed maximum aggregate value of transaction: ------------------------------------------------------------------------- 5) Total fee paid: ------------------------------------------------------------------------- [ ] Fee paid previously with preliminary materials. ================================================================================ MASSMUTUAL CORPORATE INVESTORS Springfield, Massachusetts 01115 [LOGO] NOTICE OF ANNUAL MEETING OF SHAREHOLDERS AND PROXY STATEMENT TIME FRIDAY, APRIL 22, 2005 AT 2:00 P.M. PLACE OAK ROOM MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY 1295 STATE STREET SPRINGFIELD, MASSACHUSETTS 01111 -------------------------------------------------------------------------------- PLEASE DATE, FILL IN AND SIGN THE ENCLOSED PROXY CARD AND MAIL IT IN THE ENCLOSED RETURN ENVELOPE WHICH REQUIRES NO POSTAGE IF MAILED IN THE UNITED STATES. -------------------------------------------------------------------------------- MASSMUTUAL CORPORATE INVESTORS Springfield, Massachusetts Dear Shareholder: The 2005 Annual Meeting of Shareholders of MassMutual Corporate Investors (the "Trust") will be held in the Oak Room of Massachusetts Mutual Life Insurance Company, 1295 State Street, Springfield, Massachusetts 01111, at 2:00 p.m., Eastern Time, on Friday, April 22, 2005. A Notice and a Proxy Statement regarding the meeting, a proxy card for your vote at the meeting and a postage prepaid envelope in which to return your proxy card are enclosed. BY PROMPTLY RETURNING THE ENCLOSED PROXY CARD YOU CAN HELP THE TRUST AVOID THE EXPENSE OF SENDING FOLLOW-UP LETTERS TO OBTAIN THE ATTENDANCE OF A MAJORITY OF THE OUTSTANDING SHARES. You are earnestly requested to sign and return the proxy card in order that the necessary quorum may be represented at the meeting. If you later find that you can be present in person, you may, if you wish, revoke your proxy then and vote your shares in person. At the meeting, shareholders will be asked to re-elect three Trustees. The Board of Trustees and the Nominating Committee of the Board of Trustees recommend that shareholders elect the nominated Trustees. I look forward to your attendance at this meeting because it will provide us with an opportunity to inform you about the progress of the Trust. Sincerely, /s/ Stuart H. Reese -------------------------- Stuart H. Reese CHAIRMAN 1 MASSMUTUAL CORPORATE INVESTORS Notice of Annual Meeting of Shareholders TO THE SHAREHOLDERS OF MASSMUTUAL CORPORATE INVESTORS: The Annual Meeting of Shareholders of MassMutual Corporate Investors (the "Trust") will be held in the Oak Room of Massachusetts Mutual Life Insurance Company, 1295 State Street, Springfield, Massachusetts 01111, on Friday, April 22, 2005, at 2:00 p.m., Eastern Time, for the following purposes: (1) to re-elect Steven A. Kandarian, Jack A. Laughery and Corine T. Norgaard as Trustees for three-year terms, and until their respective successors are duly elected and qualified; and (2) to transact such other business as may properly come before the meeting or any adjournment or adjournments thereof. Holders of record of the shares of the Trust at the close of business on February 22, 2005, are entitled to vote at the meeting or any adjournment thereof. By order of the Board of Trustees, /s/ Stephen L. Kuhn ------------------------------- Stephen L. Kuhn VICE PRESIDENT AND SECRETARY Springfield, Massachusetts March 1, 2005 2 PROXY STATEMENT GENERAL This Proxy Statement is furnished in connection with the solicitation of proxies by the Board of Trustees of MassMutual Corporate Investors (the "Trust") for use at the Annual Meeting of its Shareholders, to be held in the Oak Room of Massachusetts Mutual Life Insurance Company ("MassMutual"), 1295 State Street, Springfield, Massachusetts 01111, on Friday, April 22, 2005, at 2:00 p.m., Eastern time. Any person giving a proxy has power to revoke it by mail or in person at any time prior to its exercise by executing a superseding proxy or by submitting a notice of revocation to the Trust. All properly executed and unrevoked proxies received in time for the meeting will be voted in accordance with the instructions contained therein. Holders of common shares of the Trust ("shares") of record at the close of business on February 22, 2005 will be entitled to one vote per share on all business of the meeting and any adjournments. There were 9,009,343 shares outstanding on the record date. To the best knowledge of the Trust, MassMutual is the only beneficial owner of more than 5% of the outstanding shares of the Trust. MassMutual may be deemed a beneficial owner of more than 5% of the outstanding shares of the Trust by reason of its owning a $20,000,000 Senior Fixed Rate Convertible Note due November 15, 2007 (the "Note") issued by the Trust. MassMutual, at its option, can convert the principal amount of the Note into shares. The dollar amount of principal would be converted into an equivalent dollar amount of shares based upon the average price of the shares for ten business days prior to the notice of conversion. This Proxy Statement and the accompanying letter to shareholders from the Chairman of the Board of Trustees, Notice of Annual Meeting of Shareholders and proxy card are being mailed on or about March 1, 2005, to shareholders of record on February 22, 2005, the record date. The Trust's principal business office is MassMutual Corporate Investors, c/o Babson Capital Management LLC ("Babson"), 1500 Main Street, Suite 600, Springfield, Massachusetts 01115. Pursuant to the Trust's By-Laws, the presence at the Annual Meeting, in person or by proxy, of shareholders entitled to cast a majority of the votes shall be a quorum for the transaction of business. A plurality of votes cast is required to elect Trustees. Thus, the three nominees for Trustees at the Annual Meeting who receive the greatest number of votes properly cast for the election of trustees shall be elected Trustees. Votes cast by proxy or in person at the Annual Meeting will be counted by persons appointed by the Trust to act as election inspectors for the meeting. The election inspectors will count the total number of votes cast "for" approval of the proposals for purposes of determining whether sufficient affirmative votes have been cast. The election inspectors will count shares represented by proxies that withhold authority to vote for a nominee for election as a Trustee or that reflect abstentions or "broker non-votes" (i.e., shares held by brokers or nominees as to which (i) instructions have not been received from the beneficial owners or the persons entitled to vote and (ii) the broker or nominee does not exercise the discretionary voting power 3 on a particular matter) as shares that are present and entitled to vote on the matter for purposes of determining the presence of a quorum. With respect to the election of Trustees, abstentions and broker non-votes have no effect on the outcome of the proposal so long as a quorum is present. (1) ELECTION OF TRUSTEES The Board of Trustees is currently comprised of eight Trustees with terms expiring in 2005, 2006 and 2007. The terms of Steven A. Kandarian, Jack A. Laughery and Corine T. Norgaard expire this year. The Trust's Nominating Committee nominated Mr. Kandarian, Mr. Laughery and Ms. Norgaard (who are independent Trustees) for re-election to the Board of Trustees, each for a three-year term. All nominees, if elected, are to serve their respective terms, and until each of their successors is duly elected and qualified. INFORMATION CONCERNING TRUSTEES, NOMINEES FOR TRUSTEE AND OFFICERS OF THE TRUST Set forth below after the name of each nominee for Trustee and for each Trustee whose term will continue after this meeting, is his or her present office with the Trust; age; term of office and length of such term served; principal occupation during the past five years; certain other of the Trustees' directorships; and certain other information required to be disclosed in this Proxy Statement. Also, set forth below is a list of the Trust's Executive Officers, with his or her position with the Trust, principal occupation or employment for the past five years and term of office and length of such term served. 4 INTERESTED TRUSTEES Portfolios Position Office Term/ Principal Overseen In Name (Age) with the Length of Occupation(s) During Fund Other Directorships Address Fund Time Served Past 5 Years Complex Held by Director ------------------------------------------------------------------------------------------------------------------------------------ Stuart H. Reese* (49) Trustee 3 years/1 year, Executive Vice President 41 Trustee, Chairman (since 1999) 10 months and Chief Investment and President (1993-1999) of MassMutual Life Ins. Co. Chairman Officer (since 1999) of the Trust; Director (since 1295 State Street (since 1999) 1 year/7 months MassMutual; Chairman 1995), MassMutual Corporate Springfield, MA 01111 and Chief Executive Value Partners Limited Officer (since 2000), (investment company); President Director (2000-2004), (1994-1999), Chairman and Member of the Board of Trustee (since 1999), Managers (since 2004), MassMutual Select Funds, and President (2000- formerly MassMutual 2001 and 2003-2005) of Institutional Funds (an Babson; Chief Executive open-end investment company Director (1997-1999), advised by MassMutual); Senior Vice President President (1993-1999), Chairman (1993-1997) of MassMutual. and Trustee (since 1999), MML Series Investment Fund (an open-end investment company advised by MassMutual); Advisory Board Member (since 1995), Kirtland Capital Partners (investment partnership); Advisory Board Member (since 1996), MassMutual High Yield Partners II LLC (investment company); Chairman (since 1999) and Director (since 1996), Antares Capital Corporation (bank loan syndication); Director (since 1996), Charter Oak Capital Management, Inc.; President (since 1998), MassMutual/Darby CBO LLC (investment company); Director (since 1999), MLDP Holdings; Chairman (since 2000), Cornerstone Real Estate Advisers Inc.; Trustee (since 1998), President (1998-2001) and Chairman (since 2001), MMCI Subsidiary Trust and MMPI Subsidiary Trust; Trustee, Chairman (since 1999), and President (1993-1999), MassMutual Participation Investors (closed-end investment company advised by Babson). ------------------------------------------------------------------------------------------------------------------------------------ *Mr. Reese is an "interested person" of the Trust (as defined in the Investment Company Act of 1940, amended) because of his position as an Officer of the Trust, an Executive Officer of MassMutual and Chairman, Member of the Board of Managers, and Chief Executive Officer of Babson. 5 INTERESTED TRUSTEES Portfolios Position Office Term/ Principal Overseen In Name (Age) with the Length of Occupation(s) During Fund Other Directorships Address Fund Time Served Past 5 Years Complex Held by Director ------------------------------------------------------------------------------------------------------------------------------------ Robert E. Joyal** (60) Trustee 3 years/10 months President (2001-2003), 41 President (1999-2003) and (since 2003) Managing Director Trustee (since 2003) of the MassMutual Corporate Investors (2000-2001) and Trust; Director (since 1996), 1500 Main Street Executive Director Antares Capital Corporation Suite 600 (1999-2000) of Babson; (bank loan syndication); Springfield, MA 01115 Executive Director Director (since 2003), Pemco (1997-1999) of Aviation Group, Inc.; Trustee MassMutual. (since 2003), MassMutual Select Funds, formerly MassMutual Institutional Funds, (an open-end investment company advised by MassMutual); Trustee (since 2003), MML Series Investment Fund (an open-end investment company advised by MassMutual); Trustee (1998-2003), Senior Vice President (1998-2001) and President (2001-2003), MMCI Subsidiary Trust and MMPI Subsidiary Trust; President (1999-2003), Trustee (since 2003), MassMutual Participation Investors (closed-end investment company advised by Babson). ------------------------------------------------------------------------------------------------------------------------------------ **Mr. Joyal retired as President of Babson in June 2003. He continues to serve as a director or trustee of several entities affiliated with MassMutual, Babson's indirect parent company. Accordingly, the Trust classifies Mr. Joyal as an "interested person" of the Trust and Babson (as defined in the Investment Company Act of 1940, amended). 6 INDEPENDENT TRUSTEES Portfolios Position Office Term/ Principal Overseen In Name (Age) with the Length of Occupation(s) During Fund Other Directorships Address Fund Time Served Past 5 Years Complex Held by Director ------------------------------------------------------------------------------------------------------------------------------------ Steven A. Kandarian (52) Trustee 3 years/2 years, Consultant, financial 22 Trustee (since 2002), (since 2002) 10 months services (since 2004); MassMutual Premier Funds, MassMutual Corporate Investors Executive Director formerly The DLB Fund Group, 1500 Main Street (2001-2004), Pension (an open-end investment company Suite 600 Benefit Guaranty Corp., advised by MassMutual); Trustee Springfield, MA 01115 (a Federal pension (since 2002), MassMutual agency); Managing Participation Investors (a NOMINEE FOR TRUSTEE Director (1993-2001), closed-end investment company Orion Partners, L.P. (a advised by Babson). private equity fund). ------------------------------------------------------------------------------------------------------------------------------------ 7 INDEPENDENT TRUSTEES Portfolios Position Office Term/ Principal Overseen In Name (Age) with the Length of Occupation(s) During Fund Other Directorships Address Fund Time Served Past 5 Years Complex Held by Director ------------------------------------------------------------------------------------------------------------------------------------ Jack A. Laughery (70) Trustee 3 years/2 years, President and Partner 2 Director (since 1993), Papa (since 1996) 10 months (since 1996), Laughery John's International (food MassMutual Corporate Investors Investments. service companies); Director 1500 Main Street (since 1994), Houston Pizza Suite 600 Venture LLC (pizza restaurant); Springfield, MA 01115 Part Owner (1998-2004), Rocky Mount Harley Davidson; Partner NOMINEE FOR TRUSTEE (since 1996), Papa John's Iowa; Director (since 2001), Papa John's United (food service); Director (1997-1998), PJ New England; Trustee (since 1996), MassMutual Participation Investors (closed-end investment company advised by Babson). ------------------------------------------------------------------------------------------------------------------------------------ Corine T. Norgaard (67) Trustee 3 years/2 years, President, (since 2004), 22 Trustee (since 2004), (since 1998) 10 months Thompson Enterprises MassMutual Premier Funds, MassMutual Corporate Investors Real Estate Investment; formerly The DLB Fund Group (an 1500 Main Street Dean (1996-2004), open-end investment company Suite 600 Barney School of advised by MassMutual); Springfield, MA 01115 Business, University of Director (1997-2004), The Hartford. Advest Bank; Director (since NOMINEE FOR TRUSTEE 2004), Frontier Trust Company, FSB (Federal Savings Bank); Trustee (since 1993), ING Series Fund (investment company); Director (since 1992), ING Variable Series Fund; Trustee (since 1998), MassMutual Participation Investors (a closed-end investment company advised by Babson). ------------------------------------------------------------------------------------------------------------------------------------ 8 INDEPENDENT TRUSTEES Portfolios Position Office Term/ Principal Overseen In Name (Age) with the Length of Occupation(s) During Fund Other Directorships Address Fund Time Served Past 5 Years Complex Held by Director ------------------------------------------------------------------------------------------------------------------------------------ Donald E. Benson* (74) Trustee 3 years/10 months Executive Vice President 2 Director (since 1997), MAIR (since 1986) and Director (since Holdings, Inc. (commuter MassMutual Corporate Investors 1992), Marquette airline holding company); 1500 Main Street Financial Companies Director (since 1997), National Suite 600 (financial services); Mercantile Bancorp (bank Springfield, MA 01115 Partner (since 1996), holding company) and Mercantile Benson Family Limited National Bank; Trustee (since Partnership No. 1 and 1988), MassMutual Participation Benson Family Limited Investors (closed-end Partnership No. 2 investment company advised by (investment partnerships); Babson). Partner (1987-2004), Benson, Pinckney, Oates Partnership (building partnership). ------------------------------------------------------------------------------------------------------------------------------------ Donald Glickman (71) Trustee 3 years/10 months Chairman (since 1992), 2 Director (1988-2000), CalTex (since 1992) Donald Glickman and Industries, Inc. (manufacturer MassMutual Corporate Investors Company, Inc. of windows); Director (since 1500 Main Street (investment banking); 1984), Monro Muffler Brake, Suite 600 Partner (since 1992), J.F. Inc. (automobile repair Springfield, MA 01115 Lehman & Co. (private service); Director (since investments). 1998), MSC Software, Inc.; Chairman (1998-2003), Elgar Electronics (manufacturer of electronic power supplies); Director (since 2002), Racal Instrument Group (manufacturer of electronic test equipment); Director (2002-2004), OAOT, Inc. (ITC Services); Director (since 1999) SDI, Inc. (manufacturer of airbag initiations); Trustee (since 1992), MassMutual Participation Investors (closed-end investment company advised by Babson). ------------------------------------------------------------------------------------------------------------------------------------ * Mr. Benson has a beneficial ownership interest in the Benson Family Limited Partnership No. 2, which owns 0.863% ($985,512 in value) of MassMutual High Yield Partners II LLC and 1.80% ($1,056,608 in value) of Corporate Value Partners Limited, each an investment fund that may be deemed to be controlled by MassMutual. 9 INDEPENDENT TRUSTEES Portfolios Position Office Term/ Principal Overseen In Name (Age) with the Length of Occupation(s) During Fund Other Directorships Address Fund Time Served Past 5 Years Complex Held by Director ------------------------------------------------------------------------------------------------------------------------------------ Martin T. Hart* (69) Trustee 3 years/1 year, Private Investor; 2 Director (since 2004), Texas (since 1991) 10 months President and Director Roadhouse, Inc. (operates MassMutual Corporate Investors (since 1983), H restaurant chain); Director 1500 Main Street Corporation. (since 1999), ValueClick Inc. Suite 600 (internet advertising company); Springfield, MA 01115 Director (since 2002), Spectranetics Corp. (medical device company); Trustee (since 1991), MassMutual Participation Investors (closed-end investment company advised by Babson). ------------------------------------------------------------------------------------------------------------------------------------ *Mr. Hart owns 0.878% ($1,002,560 in value) of MassMutual High Yield Partners II LLC and 0.90% ($528,304 in value) of MassMutual Corporate Value Partners Limited, each an investment fund that may be deemed to be controlled by MassMutual. 10 OFFICERS OF THE TRUST Position Office Term/ Principal Name (Age) with the Length of Occupation(s) During Address Fund Time Served Past 5 Years ------------------------------------------------------------------------------------------------------------------------------------ Roger W. Crandall (40) President 1 year/7 months President (since 2003) and Vice President (2002-2003) of the Trust; Vice Chairman (since 2005), Director (2003-2004), Member of the MassMutual Corporate Investors Board of Managers (since 2004), and Managing Director (since 2000) 1500 Main Street of Babson; Managing Director (1993-2000) of MassMutual; Trustee and Suite 600 President (since 2003), MMCI Subsidiary Trust and MMPI Subsidiary Springfield, MA 01115 Trust; President (since 2003), Vice President (2002-2003), MassMutual Participation Investors. ------------------------------------------------------------------------------------------------------------------------------------ Clifford M. Noreen (47) Vice President 1 year/7 months Vice President (since 1993) of the Trust; Managing Director (since 2000) of Babson; Managing Director (1996-1999) of MassMutual; Vice MassMutual Corporate Investors President (since 1993), MassMutual Participation Investors. 1500 Main Street Suite 600 Springfield, MA 01115 ------------------------------------------------------------------------------------------------------------------------------------ Stephen L. Kuhn (58) Vice President 1 year/7 months Vice President (since 1989) and Secretary (since 1980) of the Trust; and Secretary General Counsel and Clerk (since 2000) of Babson; Senior Vice MassMutual Corporate Investors President (since 1999), Deputy General Counsel (since 1998), and 1500 Main Street Assistant Secretary (since 1996) of MassMutual; Secretary (since Suite 600 1998), MMCI Subsidiary Trust and MMPI Subsidiary Trust; Vice Springfield, MA 01115 President and Secretary (since 1988) of MassMutual Participation Investors. ------------------------------------------------------------------------------------------------------------------------------------ 11 OFFICERS OF THE TRUST Position Office Term/ Principal Name (Age) with the Length of Occupation(s) During Address Fund Time Served Past 5 Years ------------------------------------------------------------------------------------------------------------------------------------ Charles C. McCobb, Jr. (61) Vice President 1 year/7 months Chief Financial Officer (since 1998) and Vice President (since 1997) and Chief of the Trust; Managing Director (since 2000) of Babson; Managing Financial Officer Director (1997-1999) of MassMutual; Trustee, Vice President, MassMutual Corporate Treasurer and Chief Financial Officer (since 1998), MMCI Subsidiary Investors Trust and MMPI Subsidiary Trust; Chief Financial Officer (since 1500 Main Street 1998) and Vice-President (since 1997), MassMutual Participation Suite 600 Investors. Springfield, MA 01115 ------------------------------------------------------------------------------------------------------------------------------------ John T. Davitt, Jr. (37) Comptroller 1 year/7 months Comptroller (since 2001) of the Trust; Director (since 2000) of Babson; Associate Director (1997-1999) of MassMutual; Comptroller MassMutual Corporate (since 2001), MassMutual Participation Investors. Investors 1500 Main Street Suite 600 Springfield, MA 01115 ------------------------------------------------------------------------------------------------------------------------------------ James M. Roy (42) Treasurer 1 year/7 months Treasurer (since 2003) and Associate Treasurer (1999-2003) of the Trust; Director (since 2000) of Babson; Associate Director MassMutual Corporate (1996-1999) of MassMutual; Controller (since 2003), MMCI Subsidiary Investors Trust and MMPI Subsidiary Trust; Treasurer (since 2003) and 1500 Main Street Associate Treasurer (1999-2003), MassMutual Participation Investors. Suite 600 Springfield, MA 01115 ------------------------------------------------------------------------------------------------------------------------------------ Mary Ellen Wesneski (54) Chief 1 year/7 months Chief Compliance Officer (since 2004) of the Trust; Managing Compliance Director and Compliance Director (since 1999) of Babson; Chief Officer Compliance Officer (since 2004) of MassMutual Participation MassMutual Corporate Investors. Investors 1500 Main Street Suite 600 Springfield, MA 01115 ------------------------------------------------------------------------------------------------------------------------------------ 12 SHARE OWNERSHIP OF TRUSTEES, NOMINEES AND EXECUTIVE OFFICERS Set forth below is information concerning beneficial ownership, as of December 31, 2004, of the Trust's shares by each Trustee, nominee for Trustee, and by the Trust's Trustees, nominees for Trustee and Executive Officers as a group. BENEFICIAL OWNERSHIP OF TRUST SHARES DECEMBER 31, 2004* -------------------------------------------------------------------------------- NAME OF SHARES PERCENTAGE OF INDIVIDUAL BENEFICIALLY OUTSTANDING OR GROUP OWNED* SHARES OWNED -------- ------ ------------ D. Benson 2,500 ** D. Glickman 9,600 0.11% M. Hart 17,800 0.20% R. Joyal 3,670 ** S. Kandarian 2,539 ** J. Laughery 4,834 ** C. Norgaard 492+ ** S. Reese 17,106++ 0.19% All Trustees, Nominees and Executive Officers as a Group 58,702 0.65% -------------------------------------------------------------------------------- *This information, not being within the knowledge of the Trust, has been furnished by each nominee, Trustee and executive officer as of December 31, 2004. Beneficial ownership is as defined under Section 13(d) of the Securities Exchange Act of 1934, as amended. Except as otherwise indicated by footnote, the persons named in the table have sole voting and investment power with respect to all of the shares beneficially owned by them. Fractional shares are not reported. **Less than one-tenth of one percent not listed. + Ms. Norgaard has shared voting and investment power with respect to the shares listed above. ++Includes 330 shares with respect to which Mr. Reese has shared voting and investment power. The table below sets forth information regarding the beneficial ownership of the Trust's shares by each Trustee and Nominee based on the market value of such shares as of December 31, 2004. DOLLAR RANGES OF SHARES OWNED BY TRUSTEES AND NOMINEES FOR TRUSTEE -------------------------------------------------------------------------------- NAME OF DOLLAR RANGE AGGREGATE DOLLAR RANGE NOMINEE/ OF SHARES OF SHARES IN THE FAMILY TRUSTEE IN THE TRUST INVESTMENT COMPANIES ------- ------------ -------------------- D. Benson $50,001-$100,000 Over $100,000 D. Glickman Over $100,000 Over $100,000 M. Hart Over $100,000 Over $100,000 R. Joyal Over $100,000 Over $100,000 S. Kandarian $50,001-$100,000 Over $100,000 J. Laughery Over $100,000 Over $100,000 C. Norgaard $10,001-$50,000 $10,001-$50,000 S. Reese Over $100,000 Over $100,000 13 INFORMATION CONCERNING COMMITTEES AND MEETINGS OF THE BOARD OF TRUSTEES The Board of Trustees has an Audit Committee, a Joint Transactions Committee and a Nominating Committee. The Audit Committee is comprised exclusively of Trustees who are not "interested persons" of the Trust and operates pursuant to a written Audit Committee Charter, which is available on the Trust's website, www.babsoncapital.com/mci. The present members of the Audit Committee are Donald E. Benson (Chairman), Martin T. Hart and Corine T. Norgaard. Each member of the Audit Committee qualifies as an "independent" Trustee under the current listing standards of the New York Stock Exchange (the "Listing Standards") and the rules of the U.S. Securities and Exchange Commission ("SEC"). In accordance with the SEC's rules implementing Section 407 of the Sarbanes-Oxley Act of 2002 and upon due consideration of the qualifications of each member of the Trust's Audit Committee at the July 18, 2003 meeting of the Trust's Board of Trustees, the Board designated Mr. Benson as the Trust's Audit Committee Financial Expert. In accordance with the standards set forth in the Audit Committee Charter, the Audit Committee is responsible for: financial statement and disclosure oversight matters; matters related to the hiring, retention and oversight of the Trust's independent accountants; certain legal and compliance oversight matters; and certain other matters as set forth in the Charter. The Audit Committee also supervises investigations into matters relating to audit function and performs other duties as required by applicable law or regulation. During the twelve months ended December 31, 2004, the Audit Committee held six meetings. The Joint Transactions Committee is comprised of all of the Trust's Trustees who are not "interested persons" of the Trust. This Committee reviews certain joint investment transactions between the Trust and MassMutual. This Committee acts primarily by written consent (eighteen consents were executed by Committee members, approving twenty-nine investments during the past fiscal year.) The Committee also met informally four times during the year in conjunction with the quarterly meetings of the Trust's Board of Trustees. The Trust's Nominating Committee currently is comprised of the following Trustees: Donald E. Benson, Donald Glickman, Martin T. Hart, Jack A. Laughery (Chairman), Steven A. Kandarian, and Corine T. Norgaard, none of whom is an "interested person" of the Trust, as defined in Section 2(a)(19) of the Investment Company Act of 1940, as amended (the "1940 Act"). A current copy of the Nominating Committee's Charter can be found on the Trust's website, www.babsoncapital.com/mci. This Committee did not meet during fiscal year 2004. The Nominating Committee is responsible for identifying and nominating individuals to serve as Trustees who are not "interested persons" of the Trust ("independent Trustees"). The Nominating Committee Charter contemplates that all nominees for independent Trustees have a college degree or, in the judgment of the Committee, equivalent business experience. In addition, the Committee may take into 14 account a wide variety of factors in considering Trustee candidates, giving such weight to any individual factor(s) as it deems appropriate, including but not limited to: availability and commitment of a candidate to attend meetings and perform his or her responsibilities on the Board; relevant industry and related experience; educational background; depth and breadth of financial expertise; an assessment of the candidate's ability, judgment, expertise, reputation and integrity. In the case of a shareholder recommended candidate, the Committee may also consider any other facts and circumstances attendant to such shareholder submission as may be deemed appropriate by the Committee. Different factors may assume greater or lesser significance at particular times, in light of the Board's present composition and the Committee's (or the Board's) perceptions about future issues and needs. When the Board has or expects to have a vacancy for an independent Trustee, the Nominating Committee will consider candidates recommended by the Trust's current Trustees; the Trust's officers; the Trust's investment adviser; the Trust's shareholders; and any other source the Committee deems to be appropriate. Shareholders' recommendations to fill vacancies on the Board for independent Trustees must be submitted in accordance with the provisions of the Nominating Committee Charter, which requires that shareholder recommendations be timely received, and contain biographical and other necessary information regarding the candidate that would be required for the Trust to meet its disclosure obligations under the proxy rules. The Nominating Committee will evaluate nominee candidates properly submitted by shareholders in the same manner as it evaluates candidates recommended by other sources. During the past fiscal year, the Board of Trustees held six regular meetings (two of which were held by means of a telephone conference call). TRANSACTIONS WITH AND REMUNERATION OF OFFICERS AND TRUSTEES Pursuant to the Investment Services Contract between the Trust and Babson (the "Contract"), Babson paid (and will continue to pay) the compensation and expenses of the Trust's officers and of all Trustees of the Trust who were officers or employees of Babson, with the exception of Messrs. Reese, Kuhn and Deitelbaum, whose compensation and expenses were paid (and will continue to be paid) by MassMutual. Trustees who are not officers or employees of MassMutual or Babson receive fees of $2,000 for each Trustees' meeting ($1,000 for each meeting conducted by telephone conference call) which they attend and annual Trustees' fees of $12,000. Members of the Audit Committee and Nominating Committee receive an additional fee of $1,000 per meeting attended, including meetings conducted by telephone. Pursuant to a deferred compensation plan, Trustees may defer receipt of their fees until their retirement from the Board or some other time at their election. The aggregate direct remuneration of these Trustees and reimbursement of their out-of-pocket expenses paid by the Trust during the fiscal year ended December 31, 2004 was approximately $154,874. 15 The following table discloses the compensation paid to the Trust's independent Trustees (not including reimbursement for out-of-pocket expenses) for the fiscal year ended December 31, 2004. Each of the independent Trustees also serves as a Trustee of one other closed-end investment company, MassMutual Participation Investors, managed by Babson. Mr. Kandarian and Ms. Norgaard also serve as a Trustee of an open-end investment company, MassMutual Premier Funds, managed by MassMutual, the ultimate parent of Babson. (The Trust, MassMutual Participation Investors and MassMutual Premier Funds are collectively referred to in the table below as the "Fund Complex"). The Trustees do not receive pension or retirement benefits. TOTAL AGGREGATE COMPENSATION NAME OF COMPENSATION FROM FUND TRUSTEE FROM THE TRUST COMPLEX ------- -------------- ------- Donald E. Benson $ 28,000 $ 48,250 Donald Glickman 22,000 36,250 Martin T. Hart 28,000 48,250 Jack A. Laughery 22,000 36,250 Corine T. Norgaard 28,000 57,583 Steven A. Kandarian 18,286 54,643 -------- -------- Total $146,286 $281,226 ======== ======== AUDIT COMMITTEE REPORT The Audit Committee oversees the Trust's financial reporting process on behalf of the Board of Trustees and operates under a written Charter adopted by the Board of Trustees. The Audit Committee meets with the Trust's management ("Management") and independent public accountants and reports the results of its activities to the Board of Trustees. Management has the primary responsibility for the financial statements and the reporting process including the system of internal controls. In connection with the Committee's and independent accountant's responsibilities, Management advised that the Trust's financial statements were prepared in conformity with generally accepted accounting principles. Accordingly, the Audit Committee has: o Reviewed and discussed the audited financial statements for the fiscal year ended December 31, 2004 with Management and KPMG LLP, the Trust's independent public accountant; o Discussed with KPMG LLP those matters required to be discussed by SAS 61 (Codification of Statements on Auditing Standards); and o Received the written disclosure and the letter from KPMG LLP required by Independence Standards Board Standard No. 1 (Independence Discussions with Audit Committees) and has discussed with KPMG LLP its independence. 16 The Audit Committee has also reviewed the aggregate fees billed for professional services rendered by KPMG LLP for 2004 and by Deloitte & Touche LLP for 2003 for the Trust and for the non-audit services provided to Babson, and Babson's parent, MassMutual. As part of this review, the Audit Committee considered whether the provision of such non-audit services were compatible with maintaining the principal accountant's independence. In reliance on the reviews and discussions referred to above, the Audit Committee presents this Report to the Trust's Board of Trustees and recommends that the Board of Trustees (1) include the December 31, 2004 audited financial statements in the Annual Report to shareholders for the fiscal year ended December 31, 2004, and (2) file such Annual Report with the Securities and Exchange Commission and the New York Stock Exchange. The Audit Committee appointed the firm of KPMG LLP as the Trust's auditors of the Trust for the fiscal year ending December 31, 2005, and, in connection therewith, KPMG LLP will prepare all of the Trust's tax returns for the fiscal year ending December 31, 2005. SUBMITTED BY THE AUDIT COMMITTEE OF THE BOARD OF TRUSTEES DONALD E. BENSON, Audit Committee Chair MARTIN T. HART, Audit Committee Member CORINE T. NORGAARD, Audit Committee Member February 7, 2005 The Board of Trustees reviewed this Report and approved the audited financial statements for publication in the Trust's Annual Report. THE TRUST'S INDEPENDENT AUDITORS KPMG LLP ("KPMG") audited the financial statements of the Trust, Babson and MassMutual for the fiscal year ended December 31, 2004. KPMG's audit report for the Trust contained no qualifications or modifications. A KPMG representative is expected to be present at the forthcoming Annual Meeting. This representative shall have the opportunity to make a statement if he or she desires to do so, and it is expected that such representative will be available to respond to appropriate questions from shareholders. As noted above, KPMG will audit the Trust's 2005 financial statements and prepare the Trust's 2005 tax return. 17 FEES PAID TO INDEPENDENT AUDITORS (1) Fees Billed to the Trust -------------------------------------------------------------------------------- KPMG LLP Deloitte & Touche LLP* Year Ended Year Ended December 31, 2004 December 31, 2003 ----------------- ----------------- Audit Fees $32,500 $60,500 Audit-Related Fees 5,000 5,500 Tax Fees 8,500 7,400 All Other Fees 0 0 ------- ------- Total Fees $46,000 $73,400 ======= ======= (2) Non-Audit Fees Billed to Babson and MassMutual -------------------------------------------------------------------------------- KPMG LLP Deloitte & Touche LLP* Year Ended Year Ended December 31, 2004 December 31, 2003 ----------------- ----------------- Audit-Related Fees $406,900 $340,000 Tax Fees 35,138 35,100 All Other Fees 400,000 5,000 -------- -------- Total Fees $842,038 $380,100 ======== ======== *Deloitte & Touche LLP ("D&T") was the Trust's independent auditors for the 2003 fiscal year audit. The category "Audit Related Fees" reflects fees billed by KPMG or D&T for services related to the audit and other assurance services performed in connection with the audit engagements of the Trust, Babson and MassMutual. Preparation of Federal, state and local income tax and compliance work are representative of the fees billed in the "Tax Fees" category. The category "All Other Fees" represents fees billed by KPMG or D&T for various non-audit and non-tax services rendered to Babson and MassMutual, such as SAS 70 review, agreed upon procedures reports, and tax consulting. The Sarbanes-Oxley Act of 2002 and its implementing regulations allows the Trust's Audit Committee to establish a pre-approval policy for certain services rendered by the Trust's independent accountants. During 2004, the Trust's Audit Committee approved all of the services rendered to the Trust by KPMG and did not rely on such a pre-approval policy for any such services. The 2003 fees billed represent final 2003 amounts, which may differ from the preliminary figures available as of the publication date of the Trust's 2004 Proxy Statement and includes, among other things, fees for services that may not have been billed as of the publication date of the Trust's 2004 Proxy Statement, but are now properly included in the 2003 fees billed to the Trust, Babson and MassMutual. 18 During 2003, the Trust, Babson and MassMutual solicited proposals for their independent audit and tax engagements from the four nationally recognized public accounting firms (including D&T and KPMG). The Trust's Audit Committee and its Board of Trustees determined that, based on KPMG's more favorable fee structure, engaging KPMG was in the best interests of the Trust. Effective January 1, 2004, and for the fiscal year ended December 31, 2004, the Trust's Audit Committee and Board of Trustees appointed KPMG as the Trust's independent auditors replacing D&T. Babson and MassMutual also engaged KPMG to perform certain audit, tax and other services for them. During 2002 and 2003, the Trust had no disagreements with D&T concerning any matter of accounting principles or practices, financial statement disclosure or auditing scope and procedure and D&T never advised the Trust that: (1) the Trust's internal controls were unreliable; (2) the representations of the Trust's management were unreliable or that D&T was unwilling to be associated with the financial statements prepared by the Trust's management; (3) D&T needed to expand significantly the scope of its audits (and D&T never, in fact, so expanded such audit scope); (4) D&T became aware of any information that materially impacted the fairness or reliablity of either a previously issued audit report or such report's underlying financial statements or that caused D&T to cease reliance on the assertions of the Trust's management related to such financial statements; and (5) an issue existed related to any of D&T's audit reports or their underlying financial statements were resolved other than to the satisfaction of D&T. (2) OTHER BUSINESS The Board of Trustees knows of no business to be brought before the meeting other than as set forth above. If, however, any other matters properly come before the meeting, it is the intention of the persons named in the enclosed proxy card to vote proxies on such matters in accordance with their best judgment. INVESTMENT ADVISER Babson provides investment management and certain administrative services to the Trust pursuant to the Contract. Babson, an SEC registered investment adviser since 1940, currently has over $89 billion in assets under management and provides investment management services to registered investment companies, unregistered investment companies, institutional investors (such as insurance companies, pension plans, endowments and foundations) and high net worth investors. MassMutual Holding LLC is the direct owner of 100% of the voting shares of Babson. MassMutual owns all of the voting shares of MassMutual Holding LLC. All of these entities are located at 1295 State Street, Springfield, Massachusetts, 01111. Babson also has an office at 1500 Main Street in Springfield, Massachusetts, 01115, and its principal office is located at One Memorial Drive, Cambridge, Massachusetts 02142. 19 CERTAIN ADMINISTRATIVE SERVICES MassMutual indirectly provides certain administrative services to the Trust including, but not limited to, accounting services, meeting facilities, legal support, report preparation and other services provided to Babson, the Trust's investment adviser. MassMutual's principal business address is 1295 State Street, Springfield, MA, 01111. SECTION 16 (a) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE During the fiscal year one Babson employee, William F. Glavin Jr., who had reporting responsibilities with respect to transactions in securities, inadvertently failed to timely file a Form 4 relating to one transaction. PROPOSALS BY SHAREHOLDERS AND COMMUNICATIONS WITH THE BOARD OF TRUSTEES Any Shareholder intending to present a proposal at the Annual Meeting to be held in 2006 who wishes to have such proposal included in the Trust's proxy material for that meeting, should forward the written proposal to the Trust, Attention: Secretary. Proposals must be received on or before November 1, 2005, to be considered for inclusion in the Trust's proxy material for its 2006 Annual Meeting. Pursuant to procedures approved by the Trust's Board of Trustees, including a majority of the Trustees who are not "interested persons of the Trust" as defined in Section 2 (a)(19) of the 1940 Act, Shareholders may mail written communications to the Board by writing the Trust's Chief Financial Officer at the Office of the Trust's investment adviser or by emailing the Trust's Chief Financial Officer at mcimailbox@massmutual.com. When writing to the Trust's Board, Shareholders should identify themselves, the fact that the communication is directed to the Board, and any relevant information regarding their Trust holdings. ADDITIONAL INFORMATION Proxies will be solicited by mail and may be solicited in person or by telephone, electronically, or facsimile by officers of the Trust. The expenses connected with the solicitation of these proxies and with any further proxies which may be solicited by the Trust's officers in person, by telephone or by facsimile will be borne by the Trust. In addition, the Trust may retain an outside firm to solicit proxies, which would involve additional expenses, payable by the Trust. If the Trust does retain such an outside firm, the anticipated cost would be approximately $16,000. The Trust will reimburse banks, brokers, and other persons holding the Trust's shares registered in their names or in the names of their nominees, for their expenses incurred in sending proxy material to and obtaining proxies from the beneficial owners of such shares, which reimbursement will not be submitted to a vote of the Trust's Shareholders. The Trust will arrange for at least one Trustee to attend its 2005 Annual Meeting of Shareholders; encourages all of its Trustees to attend its Annual Meetings of Shareholders; and will endeavor to arrange Annual Meetings of Shareholders on the same date as a Board of Trustees meeting to facilitate such attendance. Five of the Trust's Trustees attended the April 30, 2004 Annual Meeting. If any Shareholders desire additional information about the matters proposed for action, management will be glad to hear from them and to provide further information. 20 ANNUAL REPORT THE ANNUAL REPORT OF THE TRUST FOR ITS FISCAL YEAR ENDED DECEMBER 31, 2004, INCLUDING FINANCIAL STATEMENTS, A SCHEDULE OF THE TRUST'S INVESTMENTS AS OF SUCH DATE AND OTHER DATA, WAS MAILED ON OR ABOUT MARCH 1, 2005, TO ALL SHAREHOLDERS OF RECORD. THE FINANCIAL STATEMENTS INCLUDED IN SUCH ANNUAL REPORT ARE INCORPORATED HEREIN BY REFERENCE. ANY SHAREHOLDER MAY REQUEST A COPY OF THE ANNUAL REPORT AND THE MOST RECENT SEMI-ANNUAL REPORT, WHICH WILL BE FURNISHED WITHOUT CHARGE, BY CALLING (TOLL-FREE) THE TRUST'S TRANSFER AGENT, SHAREHOLDER FINANCIAL SERVICES, INC., AT 1-800-647-7374. By order of the Board of Trustees, /s/ Stephen L. Kuhn ------------------------------ Stephen L. Kuhn VICE PRESIDENT AND SECRETARY 1500 Main Street Springfield, Massachusetts 01115 March 1, 2005 21 MASSMUTUAL CORPORATE INVESTORS C/O BABSON CAPITAL MANAGEMENT LLC 1500 MAIN STREET SUITE 600 SPRINGFIELD, MA 01115 TO VOTE BY MAIL 1) Read the Proxy Statement. 2) Check the appropriate boxes on the reverse side. 3) Sign and date the proxy card below. 4) Return the proxy card in the envelope provided. MASSMUTUAL CORPORATE INVESTORS THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF TRUSTEES The undersigned hereby appoints Stephen L. Kuhn and Charles C. McCobb, Jr., and each of them, attorneys and proxies of the undersigned, with power of substitution to vote all shares of MassMutual Corporate Investors (the "Trust") which the undersigned is entitled to vote at the Annual Meeting of Shareholders of the Trust to be held in the Oak Room of Massachusetts Mutual Life Insurance Company, 1295 State Street, Springfield, Massachusetts 01111, on Friday, April 22, 2005, at 2:00 p.m. Eastern time, and at any adjournments thereof (the "Annual Meeting"). THIS PROXY WILL BE VOTED ON ITEM (1) IN ACCORDANCE WITH THE INSTRUCTIONS GIVEN ON THIS CARD, AND IN THE ABSENCE OF INSTRUCTIONS THE UNDERSIGNED HEREBY AUTHORIZES THE AFORESAID PROXY OR PROXIES TO VOTE FOR ITEM (1). THIS PROXY WILL BE VOTED ON ITEM (2) IN THE SOLE AND ABSOLUTE DISCRETION OF THE PROXY, AND IN THE ABSENCE OF INSTRUCTIONS, THE UNDERSIGNED HEREBY AUTHORIZES THE AFORESAID PROXY OR PROXIES TO VOTE ON A MATTER RAISED PURSUANT TO ITEM (2). Address changes: ____________________________ ____________________________ ____________________________ (If you noted any address changes above, please mark corresponding box on other side.) Date _________________________ ------------------------------------ | | | | ------------------------------------ Signature(s) (if held jointly) (Please sign in box) Please sign exactly as your name or names appear. When signing as joint tenant, all parties to the joint tenancy should sign. When signing as attorney, executor, administrator, trustee or guardian, please give your full title as such. MASSMUTUAL CORPORATE INVESTORS Please fill in box(es) as shown using black or blue ink or number 2 pencil. [X] PLEASE DO NOT USE FINE POINT PENS. 1. Election of Trustees For Withhold For All All All Except* Nominees for re-election: (01) Steven A. Kandarian, [ ] [ ] [ ] (02) Jack A. Laughery and (03) Corine T. Norgaard for the terms set forth in the proxy statement. *To withhold authority to vote, mark "For All Except" and write the nominee's number on the line below. ________________________________________________________________________ 2. The proxies are authorized to vote on any other business that may properly come before the Annual Meeting. The proxies are hereby authorized to vote on any other business in their sole and absolute discretion. YES NO Please indicate if you plan to attend this meeting. [ ] [ ] For address changes, please check this box and write them on the reverse side of this card where indicated. [ ] THIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED. PLEASE SIGN AND DATE ON THE REVERSE SIDE.