================================================================================ UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM N-Q Quarterly Schedule of Portfolio Holdings of Registered Management Investment Company Investment Company Act file number 811-02183 MassMutual Corporate Investors -------------------------------------------------------------------------------- (Exact name of registrant as specified in charter) 1500 Main Street, Suite 600, Springfield, MA 01115 -------------------------------------------------------------------------------- (Address of principal executive offices) (Zip code) Stephen L. Kuhn, 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: 12/31 ___________________ Date of reporting period: 09/30/04 ___________________ ================================================================================ ITEM 1. SCHEDULE OF INVESTMENTS. CONSOLIDATED SCHEDULE OF INVESTMENTS MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Shares, Units, Warrants, Ownership or Acquisition CORPORATE RESTRICTED SECURITIES - 82.87%: (A) Principal Amount Date Cost Fair Value ------------ ------------ ------------ ------------ PRIVATE PLACEMENT INVESTMENTS - 72.85% A T I ACQUISITION COMPANY A for-profit post-secondary school serving students in Texas, Florida and Arizona. 12% Senior Subordinated Note due 2012 $ 2,125,000 04/08/04 $ 2,125,000 $ 2,115,366 Warrant, exercisable until 2012, to purchase common stock at $.01 per share (B) 2,323 shs. 04/08/04 -- 23 ------------ ------------ 2,125,000 2,115,389 ------------ ------------ A W C HOLDING COMPANY A manufacturer and distributor of aluminum and vinyl windows and doors in the Southwest and Southeast regions of the U.S. 12% Senior Subordinated Note due 2012 $ 2,125,000 05/18/04 1,917,731 1,918,647 Limited Partnership Interest (B) 250 uts. 05/18/04 212,500 191,251 ------------ ------------ 2,130,231 2,109,898 ------------ ------------ ADORN, INC. A manufacturer of wall panels, cabinets, moldings and countertops for houses and recreational vehicles. 12.5% Subordinated Note due 2010 $ 2,125,000 02/29/00 1,924,254 2,095,924 Warrant, exercisable until 2010, to purchase common stock at $.02 per share (B) 364 shs. 02/29/00 307,759 137,429 ------------ ------------ 2,232,013 2,233,353 ------------ ------------ AMERICA'S BODY COMPANY, INC./LCP HOLDING CO. A designer and manufacturer of commercial work vehicles. 12% Preferred Stock Series C (B) $ 395 shs. 12/16/03 1,750,000 2,625,001 Warrant, exercisable until 2007, to purchase common stock at $.01 per share (B) 58 shs. * 513,334 1 ------------ ------------ 2,263,334 2,625,002 ------------ ------------ AMERICAN HOSPICE MANAGEMENT A for-profit hospice care provider in the U.S. 12% Senior Subordinated Note due 2010 $ 2,125,000 01/22/04 1,899,110 2,210,000 Preferred Class A Unit (B) 2,525 uts. 01/22/04 240,789 216,710 Common Class B Unit (B) 3,042 uts. 01/22/04 -- 30 ------------ ------------ 2,139,899 2,426,740 ------------ ------------ BEACON MEDICAL PRODUCTS, INC. A designer, manufacturer and marketer of medical air and gas distribution systems. Senior Secured Floating Rate Revolving Credit Facility due 2007 $ 115,318 04/09/02 115,318 114,686 Senior Secured Tranche A Floating Rate Note due 2008 $ 899,928 04/09/02 899,928 890,777 12% Senior Secured Note due 2010 $ 721,196 04/09/02 617,976 754,707 Limited Partnership Interest of Riverside Capital Appreciation Fund IV, L.P. (B) 1.12% int. 04/09/02 152,329 137,096 Warrant, exercisable until 2010, to purchase common stock at $.01 per share (B) 1,390 shs. 04/09/02 127,497 78,180 ------------ ------------ 1,913,048 1,975,446 ------------ ------------ *11/02/98 and 12/16/03. -------------------------------------------------------------------------------- 7 CONSOLIDATED SCHEDULE OF INVESTMENTS (CONT.) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Shares, Units, Warrants, Ownership or Acquisition CORPORATE RESTRICTED SECURITIES (A) (CONTINUED) Principal Amount Date Cost Fair Value ------------ ------------ ------------ ------------ BETA BRANDS LTD A manufacturer of hard candy and chocolate-coated products sold primarily to the Canadian market. 5% Promissory Note due 2009 (B) $ 195,498 03/31/04 $ 195,498 $ -- Warrant, exercisable until 2009, to purchase common stock at $.01 per share (B) 4,895 shs. 03/31/04 1 -- ------------ ------------ 195,499 -- ------------ ------------ BETTER MINERALS & AGGREGATES A producer of high grade industrial and specialty silica sands. 14% Redeemable Preferred Stock (B) 997 shs. 09/30/99 545,858 108,991 Convertible Preferred Stock Series A and B, convertible into common stock at $9.26 per share (B) 126,003 shs. 12/19/96 1,166,700 -- Common Stock (B) 20,027 shs. 09/30/99 799,068 -- Warrants, exercisable until 2005 and 2010, to purchase common stock at $.01 per share (B) 11,399 shs. * 128,502 -- ------------ ------------ 2,640,128 108,991 ------------ ------------ C & M CONVEYOR, INC. A manufacturer and supplier of material handling systems to the corrugated sheet and container industry. 9.5% Senior Secured Term Note due 2007 $ 996,235 09/13/02 996,235 1,005,263 11% Senior Subordinated Note due 2010 $ 838,102 09/13/02 793,859 854,189 Common Stock (B) 316,265 shs. 09/13/02 316,265 253,012 Warrant, exercisable until 2010, to purchase common stock at $.01 per share (B) 137,175 shs. 09/13/02 60,250 1,372 ------------ ------------ 2,166,609 2,113,836 ------------ ------------ CAINS FOODS, L.P. A producer of mayonnaise and sauce products for both the retail and food service markets. Limited Partnership Interest (B) 117 uts. 09/29/95 158,369 194,418 ------------ ------------ CAPESUCCESS LLC A provider of diversified staffing services. Preferred Membership Interests (B) 1,882 uts. 04/29/00 8,396 420 Common Membership Interests (B) 24,318 uts. 04/29/00 108,983 5,442 ------------ ------------ 117,379 5,862 ------------ ------------ CAPITAL SPECIALTY PLASTICS, INC. A producer of desiccant strips used for packaging pharmaceuticals products. Common Stock (B) 109 shs. ** 503 503 ------------ ------------ CHEMED CORPORATION An operator in the residential and commercial repairand- maintenance service industry through two wholly owned subsidiaries, Roto-Rooter and Service America. Common Stock (B) 20,000 shs. 02/24/04 1,000,000 1,114,802 ------------ ------------ **12/19/96 and 09/30/99. **12/30/97 and 05/29/99. -------------------------------------------------------------------------------- 8 CONSOLIDATED SCHEDULE OF INVESTMENTS (CONT.) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Shares, Units, Warrants, Ownership or Acquisition CORPORATE RESTRICTED SECURITIES (A) (CONTINUED) Principal Amount Date Cost Fair Value ------------ ------------ ------------ ------------ COEUR, INC. A producer of proprietary, disposable power injection syringes. 8.75% Senior Secured Term Note due 2010 $ 570,652 04/30/03 $ 570,652 $ 584,384 11.5% Senior Subordinated Note due 2011 $ 424,819 04/30/03 388,513 435,478 Common Stock (B) 126,812 shs. 04/30/03 126,812 114,131 Warrant, exercisable until 2010, to purchase common stock at $.01 per share (B) 87,672 shs. 04/30/03 40,804 877 ------------ ------------ 1,126,781 1,134,870 ------------ ------------ COINING CORPORATION OF AMERICA LLC A manufacturer of close tolerance parts and metal stampings. Senior Secured Floating Rate Revolving Credit Facility due 2006 $ 108,025 01/07/02 108,025 103,498 Senior Secured Floating Rate Tranche A Note due 2007 $ 1,020,834 06/26/01 1,020,834 935,614 13% Senior Secured Tranche B Note due 2006 $ 648,148 06/26/01 648,148 638,361 Limited Partnership Interest (B) 6.38% int. 06/26/01 324,074 259,259 Warrant, exercisable until 2008, to purchase common stock at $.01 per share (B) 107,036 shs. 06/26/01 79,398 1,070 ------------ ------------ 2,180,479 1,937,802 ------------ ------------ COLIBRI HOLDINGS CORPORATION A manufacturer and distributor of wild bird feeders and accessories. 12.5% Senior Subordinated Note due 2008 $ 1,593,750 09/22/00 1,420,761 1,512,042 28% Preferred Stock 71 shs. 11/02/01 70,833 70,294 20% Preferred Stock 66 shs. 03/09/04 66,406 64,076 Common Stock (B) 1,429 shs. 09/22/00 531,250 265,624 Warrant, exercisable until 2008, to purchase common stock at $.01 per share (B) 843 shs. 09/22/00 265,625 8 ------------ ------------ 2,354,875 1,912,044 ------------ ------------ CORVEST GROUP, INC. A manufacturer and distributor of promotional products. 12% Senior Subordinated Note due 2007 $ 3,863,636 * 3,739,063 3,477,272 Common Stock (B) 56 shs. * 96,591 24,145 Limited Partnership Interest (B) 19.32% int. * 284,869 71,692 Warrant, exercisable until 2007, to purchase common stock at $.01 per share (B) 324 shs. * 297,203 139,251 ------------ ------------ 4,417,726 3,712,360 ------------ ------------ DELSTAR HOLDING CORPORATION A manufacturer of plastic netting for a wide variety of industries. Convertible Preferred Stock, convertible into common stock at $12.16 per share (B) 3,514 shs. 10/05/01 427,153 395,243 Preferred Stock (B) 412 shs. 09/16/04 48,793 46,353 ------------ ------------ 475,946 441,596 ------------ ------------ *03/05/99 and 03/24/99. -------------------------------------------------------------------------------- 9 CONSOLIDATED SCHEDULE OF INVESTMENTS (CONT.) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Shares, Units, Warrants, Ownership or Acquisition CORPORATE RESTRICTED SECURITIES (A) (CONTINUED) Principal Amount Date Cost Fair Value ------------ ------------ ------------ ------------ DEXTER MAGNETICS TECHNOLOGIES, INC. A designer, fabricator, assembler and distributor of industrial magnets and subassemblies in North America and Europe. 12% Senior Subordinated Note due 2006 $ 461,956 07/19/01 $ 423,210 $ 462,571 Common Stock (B) 585 shs. 07/19/01 585,074 526,635 Warrant, exercisable until 2006, to purchase common stock at $.01 per share (B) 297 shs. 07/19/01 250,611 3 ------------ ------------ 1,258,895 989,209 ------------ ------------ DIRECTED ELECTRONICS, INC. A designer and distributor of brand name automotive security systems, audio products and installation accessories. Class B Common Stock (B) 36,633 shs. 12/22/99 -- 560,480 Limited Partnership Interest (B) 8.70% int. 12/22/99 1 839,837 Warrant, exercisable until 2007, to purchase common stock at $.01 per share (B) 48,569 shs. 12/22/99 -- 743,106 ------------ ------------ 1 2,143,423 ------------ ------------ DIVERSCO, INC./DHI HOLDINGS, INC. A contract provider of janitorial and equipment maintenance services and temporary production labor to industrial customers. Membership Interests of MM/Lincap Diversco Investments Ltd. LLC (B) 27.19% int. 8/27/98 734,090 -- Preferred Stock (B) 3,278 shs. 12/14/01 2,784,133 1,392,069 Warrants, exercisable until 2011, to purchase common stock of DHI Holdings, Inc. at $.01 per share (B) 13,352 shs. * 403,427 -- ------------ ------------ 3,921,650 1,392,069 ------------ ------------ DWYER GROUP, INC. A franchiser of a variety of home repair services. 14% Senior Subordinated Note due 2011 $ 1,859,375 10/30/03 1,684,239 1,818,733 Common Stock (B) 6,906 shs. ** 690,600 621,540 Warrant, exercisable until 2011, to purchase common stock at $.01 per share (B) 2,034 shs. 10/30/03 186,469 20 ------------ ------------ 2,561,308 2,440,293 ------------ ------------ E X C ACQUISITION CORPORATION A manufacturer of pre-filled syringes and pump systems used for intravenous drug delivery. 15% Senior Subordinated Note due 2012 $ 2,125,000 06/28/04 2,049,078 2,151,457 Warrant, exercisable until 2014, to purchase common stock at $.01 per share (B) 22 shs. 06/28/04 77,208 -- ------------ ------------ 2,126,286 2,151,457 ------------ ------------ EAGLE PACK PET FOODS, INC. A manufacturer of premium pet food sold through independent pet stores. 14% Senior Subordinated Note due 2011 $ 1,062,500 09/24/04 1,023,045 1,059,255 Warrant, exercisable until 2011, to purchase common stock at $.01 per share (B) 4,085 shs. 09/24/04 39,464 41 ------------ ------------ 1,062,509 1,059,296 ------------ ------------ *10/24/96 and 08/28/98. **10/30/03 and 01/02/04. -------------------------------------------------------------------------------- 10 CONSOLIDATED SCHEDULE OF INVESTMENTS (CONT.) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Shares, Units, Warrants, Ownership or Acquisition CORPORATE RESTRICTED SECURITIES (A) (CONTINUED) Principal Amount Date Cost Fair Value ------------ ------------ ------------ ------------ EAGLE WINDOW & DOOR HOLDING CO. A manufacturer of wood and aluminum-clad wood windows and doors. 12% Senior Subordinated Note due 2010 $ 1,900,000 05/06/02 $ 1,668,936 $ 1,957,000 Common Stock (B) 225 shs. 05/06/02 225,000 400,928 Warrant, exercisable until 2010, to purchase common stock at $.01 per share (B) 441 shs. 05/06/02 285,000 785,244 ------------ ------------ 2,178,936 3,143,172 ------------ ------------ EAST RIVER VENTURES I, L.P. An acquirer of controlling or substantial interests in other entities. Limited Partnership Interest (B) 0.14% int. 01/01/01 28,971 27,300 ------------ ------------ ENZYMATIC THERAPY, INC. A manufacturer and distributor of branded natural medicines and nutritional supplements. 13% Senior Subordinated Note due 2005 (B) $ 1,593,750 09/17/02 1,349,781 956,250 Limited Partnership Interest (B) 1.32% int. 03/30/00 531,250 5,313 Warrant, exercisable until 2009, to purchase common stock at $.01 per share (B) 478 shs. 03/30/00 255,000 5 ------------ ------------ 2,136,031 961,568 ------------ ------------ EURO-PRO CORPORATION A designer, marketer and distributor of floor care, steam cleaning and small kitchen products and appliances. 13.25% Senior Subordinated Note due 2011 $ 2,125,000 09/09/03 2,092,083 2,144,679 Warrant, exercisable until 2011, to purchase common stock at $.01 per share (B) 43,878 shs. 09/09/03 35,641 439 ------------ ------------ 2,127,724 2,145,118 ------------ ------------ EVANS CONSOLES, INC. A designer and manufacturer of consoles and control center systems. 10% Senior Secured Note due 2006 $ 602,000 05/06/04 602,000 602,000 Limited Partnership Interest of CM Equity Partners (B) 2.24% int. 02/11/98 126,648 -- Common Stock (B) 90,000 shs. 05/06/04 6 -- ------------ ------------ 728,654 602,000 ------------ ------------ EXAMINATION MANAGEMENT SERVICES, INC. A national full-service evidence provider to the insurance industry and a provider of occupational health testing. 12% Senior Subordinated Note due 2007 $ 2,109,637 03/16/99 2,021,398 -- Limited Partnership Interest (B) 13.14% int. 03/02/99 2,140,363 -- Warrant, exercisable until 2007, to purchase common stock at $.01 per share (B) 77,233 shs. 03/16/99 175,803 -- ------------ ------------ 4,337,564 -- ------------ ------------ -------------------------------------------------------------------------------- 11 CONSOLIDATED SCHEDULE OF INVESTMENTS (CONT.) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Shares, Units, Warrants, Ownership or Acquisition CORPORATE RESTRICTED SECURITIES (A) (CONTINUED) Principal Amount Date Cost Fair Value ------------ ------------ ------------ ------------ G C-SUN HOLDINGS, L.P. A value-added national distributor of maintenance, repair and operating supplies such as fasteners, electrical components and tools. 12% Senior Subordinated Note due 2008 (B) $ 1,725,000 03/02/00 $ 1,451,784 $ 1,293,750 Warrant, exercisable until 2008, to purchase common stock at $.01 per share (B) 880 shs. 03/02/00 347,288 -- ------------ ------------ 1,799,072 1,293,750 ------------ ------------ HAMILTON FUNERAL SERVICES CENTERS, INC. A privately held owner and operator of funeral homes in the United States. 16.5% Senior Subordinated Note due 2007 (B) $ 3,802,712 * 3,697,924 380,271 Warrant, exercisable until 2007, to purchase common stock at $1 per share (B) 338,280 shs. * 48,447 -- ------------ ------------ 3,746,371 380,271 ------------ ------------ HIGHGATE CAPITAL LLC An acquirer of controlling or substantial interests in manufacturing and marketing entities. Series A Preferred Units (B) 1.19% int. 07/21/94 385,258 2,723 ------------ ------------ HOME DeCOR HOLDING COMPANY A designer, manufacturer and marketer of framed art and wall decor products. 12.5% Senior Subordinated Note due 2012 $ 2,043,269 ** 1,845,775 2,074,470 Common Stock (B) 63 shs. ** 62,742 56,466 Warrant, exercisable until 2012, to purchase common stock at $.01 per share (B) 200 shs. ** 199,501 2 ------------ ------------ 2,108,018 2,130,938 ------------ ------------ HUSSEY SEATING CORPORATION A manufacturer of spectator seating products. Senior Secured Floating Rate Revolving Note due 2006 $ 1,343,106 06/12/96 1,343,106 1,343,106 Senior Secured Floating Rate Note due 2006 $ 433,125 *** 433,125 433,125 12% Senior Subordinated Note due 2006 $ 1,350,000 03/31/03 1,350,000 1,345,078 Common Stock (B) 4,771 shs. 03/12/04 225,000 211,007 ------------ ------------ 3,351,231 3,332,316 ------------ ------------ INTEGRATION TECHNOLOGY SYSTEMS, INC. A manufacturer of steel protective computer and network systems for the industrial and office environments. 16.5% Senior Secured Note due 2006 $ 1,603,175 03/01/04 1,601,792 1,535,374 Common Stock (B) 228 shs. 06/01/00 262,200 131,100 ------------ ------------ 1,863,992 1,666,474 ------------ ------------ *01/25/99 and 07/16/99. **06/30/04 and 08/19/04. ***06/12/96 and 08/03/01. -------------------------------------------------------------------------------- 12 CONSOLIDATED SCHEDULE OF INVESTMENTS (CONT.) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Shares, Units, Warrants, Ownership or Acquisition CORPORATE RESTRICTED SECURITIES (A) (CONTINUED) Principal Amount Date Cost Fair Value ------------ ------------ ------------ ------------ JASON, INC. A diversified manufacturing company serving various industrial markets. 13% Senior Subordinated Note due 2008 $ 963,687 08/04/00 $ 888,840 $ 864,167 14% Cumulative Redeemable Preferred Stock Series A (B) 289 shs. 08/04/00 289,224 265,364 Limited Partnership Interest of Saw Mill Capital Fund II, L.P. (B) 2.50% int. 08/03/00 886,409 443,253 Warrants, exercisable until 2008 and 2009, to purchase common stock at $.01 per share (B) 50,870 shs. 08/04/00 115,412 509 ------------ ------------ 2,179,885 1,573,293 ------------ ------------ KEEPSAKE QUILTING, INC. A seller of quilting fabrics, books, patterns, kits and notions to consumers. Senior Secured Floating Rate Revolving Note Due 2005 $ 128,425 06/16/00 128,425 128,217 Senior Secured Floating Rate Tranche A Note due 2007 $ 729,269 06/16/00 729,265 722,701 12% Senior Secured Tranche B Note due 2008 $ 550,392 06/16/00 523,187 566,904 Limited Partnership Interest of Riverside XVI Holding Company, L.P. (B) 5.29% int. 06/12/00 333,490 300,132 Warrant, exercisable until 2008, to purchase common stock at $.01 per share (B) 1,108 shs. 06/12/00 45,866 31,815 ------------ ------------ 1,760,233 1,749,769 ------------ ------------ KELE AND ASSOCIATES, INC. A distributor of building automation control products. 12% Senior Subordinated Note due 2012 $ 1,831,548 02/27/04 1,662,446 1,826,007 Preferred Stock Class A (B) 23 shs. 02/27/04 449,164 483,545 Common Stock (B) 12 shs. 02/27/04 12,871 11,581 Warrant, exercisable until 2012, to purchase common stock at $.01 per share (B) 11 shs. 02/27/04 7,793 -- ------------ ------------ 2,132,274 2,321,133 ------------ ------------ KENAN-ADVANTAGE TRANSPORT COMPANY A transporter of light petroleum, petrochemicals, lubricants and residual fuels. 12.5% Senior Subordinated Note due 2009 $ 1,817,435 04/30/01 1,817,435 1,853,784 Preferred Stock (B) 307 shs. 04/30/01 307,000 614,000 Warrant, exercisable until 2009, to purchase common stock at $.01 per share (B) 269 shs. 04/30/01 14 3 ------------ ------------ 2,124,449 2,467,787 ------------ ------------ LANCASTER LABORATORIES, INC. A laboratory testing operation in the United States. Common Stock (B) 455,739 shs. 09/25/00 589,813 821,243 ------------ ------------ LIH INVESTORS, L.P. A manufacturer and marketer of a broad line of external accessories for new and used sport utility vehicles, trucks and vans. 12.5% Senior Subordinated Note due 2006 $ 3,845,000 * 3,462,973 3,868,697 Common Stock (B) 5,800 shs. * 406,003 345,100 Warrant, exercisable until 2006, to purchase common stock at $.11 per share (B) 15,572 shs. * 602,127 926,534 ------------ ------------ 4,471,103 5,140,331 ------------ ------------ *12/23/98 and 1/28/99. -------------------------------------------------------------------------------- 13 CONSOLIDATED SCHEDULE OF INVESTMENTS (CONT.) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Shares, Units, Warrants, Ownership or Acquisition CORPORATE RESTRICTED SECURITIES (A) (CONTINUED) Principal Amount Date Cost Fair Value ------------ ------------ ------------ ------------ MAVERICK ACQUISITION COMPANY A manufacturer of capsules that cover the cork and neck of wine bottles. Senior Secured Floating Rate Revolving Note due 2009 $ 13,496 09/03/04 $ 13,496 $ 13,360 Senior Secured Floating Rate Tranche A Note due 2010 $ 783,582 09/03/04 783,582 774,431 12% Senior Secured Tranche B Note due 2011 $ 313,433 09/03/04 274,173 319,482 Limited Partnership Interest (B) 58,769 uts. 09/03/04 58,769 52,892 Warrant, exercisable until 2011, to purchase common stock at $.01 per share (B) 425 shs. 09/03/04 39,473 4 ------------ ------------ 1,169,493 1,160,169 ------------ ------------ MAXON CORPORATION A manufacturer of industrial combustion equipment and related shut-off valves and control valves. 12% Senior Subordinated Note due 2012 $ 962,215 09/30/04 871,318 951,150 8.75% Senior Subordinated Note due 2012 $ 1,281,112 09/30/04 1,281,112 1,279,703 Common Stock (B) 381,672 shs. 09/30/04 381,672 343,505 Warrant, exercisable until 2012, to purchase common stock at $.01 per share (B) 153,572 shs. 09/30/04 90,897 1,536 ------------ ------------ 2,624,999 2,575,894 ------------ ------------ MEDASSIST, INC. A provider of patient eligibility and accounts receivable management services to hospitals and physician practices. 12% Senior Subordinated Note due 2011 $ 2,125,000 05/01/03 2,089,077 2,188,750 Warrant, exercisable until 2013, to purchase common stock at $.01 per share (B) 83,214 shs. 05/01/03 40,675 53,174 ------------ ------------ 2,129,752 2,241,924 ------------ ------------ MOSS, INC. A manufacturer and distributor of large display and exhibit structures. Senior Secured Floating Rate Tranche A Note due 2007 $ 951,601 09/21/00 951,601 951,601 12% Senior Secured Tranche B Note due 2008 $ 336,200 09/21/00 315,787 336,200 Limited Partnership Interest of Riverside Capital Appreciation Fund I, L.P. (B) 7.47% int. * 311,481 233,600 Warrant, exercisable until 2008, to purchase common stock at $100 per share (B) 463 shs. 09/21/00 40,344 5 ------------ ------------ 1,619,213 1,521,406 ------------ ------------ MUSTANG VENTURES COMPANY A natural gas gathering and processing operation located in Oklahoma and Texas. Warrant, exercisable until 2012, to purchase common stock at $.01 per share (B) 16,535 shs. 12/11/02 493,501 938,300 ------------ ------------ NEFF MOTIVATION, INC. A manufacturer and distributor of customized awards and sportswear to schools. 12.5% Senior Subordinated Note due 2011 $ 1,062,500 01/31/03 902,141 1,098,682 Warrant, exercisable until 2011, to purchase common stock at $.01 per share (B) 212 shs. 01/31/03 180,625 86,937 ------------ ------------ 1,082,766 1,185,619 ------------ ------------ * 09/20/00 and 05/23/02. -------------------------------------------------------------------------------- 14 CONSOLIDATED SCHEDULE OF INVESTMENTS (CONT.) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Shares, Units, Warrants, Ownership or Acquisition CORPORATE RESTRICTED SECURITIES (A) (CONTINUED) Principal Amount Date Cost Fair Value ------------ ------------ ------------ ------------ NONNI'S FOOD COMPANY, INC. A producer and distributor of premium biscotti and bagel chips in North America. 12.25% Senior Subordinated Note due 2012 $ 1,863,462 03/29/04 $ 1,856,139 $ 1,924,540 10% Preferred Stock 255 shs. 03/29/04 255,083 260,180 Common Stock (B) 6,455 shs. 03/29/04 6,455 5,810 Warrant, exercisable until 2012, to purchase common stock at $.01 per share (B) 8,622 shs. 03/29/04 7,323 86 ------------ ------------ 2,125,000 2,190,616 ------------ ------------ NPC, INC. A manufacturer of flexible connectors and equipment used in the installation of sewers and storm drain pipelines. Senior Secured Floating Rate Revolving Note due 2006 $ 414,182 06/25/99 414,182 406,202 Senior Secured Floating Rate Note due 2006 $ 2,024,364 06/25/99 2,024,330 1,983,732 12% Senior Secured Tranche B Note due 2007 $ 978,814 06/25/99 910,239 978,808 Limited Partnership Interest of Riverside XIII Holding Company L.P. (B) 3.38% int. 06/11/99 296,883 221,438 Warrant, exercisable until 2007, to purchase common stock at $.01 per share (B) 201 shs. 06/25/99 142,373 2 ------------ ------------ 3,788,007 3,590,182 ------------ ------------ NYLONCRAFT, INC. A supplier of engineered plastic components for the automotive industry. 9% Senior Secured Note due 2009 $ 812,500 01/28/02 812,500 883,326 11.5% Senior Subordinated Note due 2012 $ 1,500,000 01/28/02 1,365,316 1,634,038 Common Stock (B) 312,500 shs. 01/28/02 312,500 326,250 Warrant, exercisable until 2012, to purchase common stock at $.01 per share (B) 243,223 shs. 01/28/02 162,045 251,736 ------------ ------------ 2,652,361 3,095,350 ------------ ------------ OLYMPIC SALES, INC. A boat retailer in Washington state, Oregon, California and British Columbia. 12% Senior Subordinated Note due 2006 $ 2,774,000 08/07/98 2,676,397 2,497,563 12% Senior Subordinated Note due 2008 $ 307,071 02/09/00 287,071 258,829 Limited Partnership Interest of Riverside VIII, VIII-A and VIII-B Holding Company, L.P. (B) 1,531,250 shs. * 1,555,768 798,930 Warrants, exercisable until 2007and 2008, to purchase common stock at $.01 per share (B) 28,648 shs. ** 389,188 287 ------------ ------------ 4,908,424 3,555,609 ------------ ------------ PARADIGM PACKAGING, INC. A manufacturer of plastic bottles and closures for the nutritional, pharmaceutical, personal care and food packaging markets. 12% Senior Subordinated Note due 2008 $ 2,125,000 12/19/00 1,948,414 2,167,500 Membership Interests of MM/Lincap PPI Investments, Inc., LLC (B) 2.42% int. 12/21/00 265,625 265,625 ------------ ------------ 2,214,039 2,433,125 ------------ ------------ *08/07/98, 02/23/99, 12/22/99 and 02/25/03. **08/07/98 and 02/09/00. -------------------------------------------------------------------------------- 15 CONSOLIDATED SCHEDULE OF INVESTMENTS (CONT.) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Shares, Units, Warrants, Ownership or Acquisition CORPORATE RESTRICTED SECURITIES (A) (CONTINUED) Principal Amount Date Cost Fair Value ------------ ------------ ------------ ------------ P H I HOLDING COMPANY A retailer of mid-priced gift items, home and garden decor, accessories and other similar consumer products. 12.5% Senior Subordinated Note due 2010 $ 2,125,000 10/25/02 $ 1,860,111 $ 2,210,000 Warrant, exercisable until 2010, to purchase common stock at $.02 per share (B) 351 shs. 10/25/02 296,747 320,449 ------------ ------------ 2,156,858 2,530,449 ------------ ------------ POLYMER TECHNOLOGIES, INC./POLI-TWINE WESTERN, INC. A manufacturer of polypropylene twine for the hay bailing marketplace. 8% Senior Subordinated Note due 2010 (B) $ 499,977 09/27/02 499,948 -- ------------ ------------ PRECISION DYNAMICS, INC. A manufacturer of custom-designed solenoid valves and controls. Senior Secured Floating Rate Revolving Credit Facility due 2004 $ 733,500 07/22/96 733,500 733,500 Senior Secured Floating Rate Term Note due 2004 $ 700,900 07/22/96 700,900 700,900 12% Senior Secured Term Note due 2004 $ 326,000 07/22/96 322,585 326,000 8% Preferred Stock (B) 374 shs. 07/22/96 231,964 231,964 Common Stock (B) 599 shs. 07/22/96 28,978 28,978 Warrant, exercisable until 2004, to purchase common stock at $.01 per share (B) 322 shs. 07/22/96 97,800 3 ------------ ------------ 2,115,727 2,021,345 ------------ ------------ PROCESS CHEMICALS LLC A specialty chemical company that manufactures processed chemicals for the fertilizer, asphalt and concrete industries. Common Membership Interests 9,863 uts. * 4 -- ------------ ------------ PROTEIN GENETICS, INC. A producer of bovine artificial insemination products, related breeding and healthcare products and specialty genetics sold to the dairy and beef industries. 9.8% Redeemable Exchangeable Preferred Stock (B) 1,004 shs. 08/12/94 100,350 -- Common Stock (B) 2,600 shs. ** 126,866 -- ------------ ------------ 227,216 -- ------------ ------------ PW EAGLE, INC. - O.T.C. An extruder of small and medium diameter plastic pipe and tubing in the United States. 18% Senior Subordinated Note due 2007 $ 3,639,961 09/16/99 3,616,448 1,273,986 Warrant, exercisable until 2007, to purchase common stock at $.01 per share (B) 197,040 shs. 09/16/99 1 179,750 ------------ ------------ 3,616,449 1,453,736 ------------ ------------ *07/31/97 and 01/04/99. **11/14/01 and 08/12/94. -------------------------------------------------------------------------------- 16 CONSOLIDATED SCHEDULE OF INVESTMENTS (CONT.) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Shares, Units, Warrants, Ownership or Acquisition CORPORATE RESTRICTED SECURITIES (A) (CONTINUED) Principal Amount Date Cost Fair Value ------------ ------------ ------------ ------------ QUALIS AUTOMOTIVE LLC A distributor of aftermarket automotive brake and chassis products. 12% Senior Subordinated Note due 2012 $ 1,770,834 05/28/04 $ 1,403,299 $ 1,800,700 Common Stock (B) 354,166 shs. 05/28/04 354,166 318,749 Warrant, exercisable until 2012, to purchase common stock at $.01 per share (B) 377,719 shs. 05/28/04 377,719 3,777 ------------ ------------ 2,135,184 2,123,226 ------------ ------------ QUALSERV CORPORATION A provider of foodservice equipment and supplies, to major restaurant chains and their franchisees. 14% Senior Subordinated Note due 2012 $ 1,865,854 07/09/04 1,817,555 1,904,296 Limited Partnership Interest (B) 259,146 uts. 07/09/04 259,146 233,231 Warrant, exercisable until 2012, to purchase common stock at $.01 per share (B) 528 shs. 07/09/04 49,061 5 ------------ ------------ 2,125,462 2,137,532 ------------ ------------ RIVER RANCH FRESH FOODS LLC A supplier of fresh produce to the retail and foodservice channels. 13% Senior Subordinated Note due 2011 $ 1,841,667 09/29/04 1,683,824 1,858,867 Limited Partnership Interest (B) 283,333 uts. 09/29/04 283,333 255,000 Warrant, exercisable until 2011, to purchase common stock at $.01 per share (B) 23,715 shs. 09/29/04 157,903 236 ------------ ------------ 2,125,060 2,114,103 ------------ ------------ ROYAL BATHS MANUFACTURING COMPANY A manufacturer and distributor of acrylic and cultured marble bathroom products. 12.5% Senior Subordinated Notes due 2011 $ 1,062,500 11/14/03 947,003 1,063,028 Warrant, exercisable until 2011, to purchase common stock at $.01 per share (B) 140 shs. 11/14/03 122,946 1 ------------ ------------ 1,069,949 1,063,029 ------------ ------------ SAFETY SPEED CUT MANUFACTURING COMPANY, INC. A manufacturer of vertical panel saws and routers for the wood working industry. Senior Secured Floating Rate Revolving Note due 2006 $ 282,663 05/01/03 282,663 287,475 Senior Secured Floating Rate Tranche A Note due 2007 $ 1,389,760 06/02/99 1,389,760 1,389,760 12% Senior Secured Tranche B Note Due 2007 $ 1,130,652 06/02/99 1,130,652 1,130,652 Class B Common Stock (B) 1,480 shs. 06/02/99 256,212 463,418 ------------ ------------ 3,059,287 3,271,305 ------------ ------------ SAVAGE SPORTS HOLDINGS, INC. A manufacturer of sporting firearms. 12% Senior Subordinated Note due 2012 $ 1,583,793 09/10/04 1,425,556 1,555,240 Common Stock (B) 586 shs. 09/10/04 586,207 527,589 Warrant, exercisable until 2012, to purchase common stock at $.01 per share (B) 134 shs. 09/10/04 113,578 1 ------------ ------------ 2,125,341 2,082,830 ------------ ------------ -------------------------------------------------------------------------------- 17 CONSOLIDATED SCHEDULE OF INVESTMENTS (CONT.) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Shares, Units, Warrants, Ownership or Acquisition CORPORATE RESTRICTED SECURITIES (A) (CONTINUED) Principal Amount Date Cost Fair Value ------------ ------------ ------------ ------------ SELIG ACQUISITION CORPORATION A manufacturer of container sealing materials for bottles used in consumer products. 12% Senior Subordinated Note due 2009 $ 2,125,000 06/13/02 $ 1,984,397 $ 2,163,250 Warrant, exercisable until 2009, to purchase common stock at $.01 per share (B) 2,011 shs. 06/13/02 182,023 422,247 ------------ ------------ 2,166,420 2,585,497 ------------ ------------ SHELTER ACQUISITION, INC. A distributor of roofing supplies and products throughout the Midwest. 12.5% Senior Subordinated Note due 2008 $ 1,517,857 08/01/02 1,357,694 1,548,214 Common Stock (B) 758,929 shs. * 758,929 683,036 Warrant, exercisable until 2009, to purchase common stock at $.01 per share (B) 263,444 shs. 08/01/02 216,446 2,634 ------------ ------------ 2,333,069 2,233,884 ------------ ------------ SNYDER INDUSTRIES, INC. A manufacturer of proprietary rotationally molded polyethylene containers. 12.25% Senior Subordinated Note due 2007 $ 3,125,000 12/06/99 2,895,267 3,156,250 Warrant, exercisable until 2007, to purchase common stock at $.01 per share (B) 513 shs. 12/06/99 426,136 77,187 ------------ ------------ 3,321,403 3,233,437 ------------ ------------ SPECIALTY FOODS GROUP, INC. A manufacturer and distributor of branded meat products. Limited Partnership Interest of MHD Holdings LLC (B) 1.43% int. 08/29/00 525,155 93,180 ------------ ------------ SPORT COURT INTERNATIONAL, INC. A designer and manufacturer of synthetic indoor and outdoor sports flooring and other temporary flooring products. Senior Secured Floating Rate Revolving Note due 2009 $ 185,750 08/12/04 185,750 183,959 Senior Secured Floating Rate Note due 2009 $ 527,171 08/12/04 527,171 521,944 12% Senior Secured Note due 2012 $ 254,282 08/12/04 236,88 256,479 Limited Partnership Interest (B) 65,830 uts. 08/12/04 65,830 59,247 Warrant, exercisable until 2012, to purchase common stock at $.01 per share (B) 33 shs. 08/12/04 17,598 -- ------------ ------------ 1,033,233 1,021,629 ------------ ------------ STRATEGIC EQUIPMENT & SUPPLY CORPORATION, INC. A provider of kitchen and restaurant design, equipment fabrication and installation services. 12% Senior Subordinated Note due 2008 $ 3,875,000 01/14/00 3,506,418 3,913,750 Warrant, exercisable until 2008, to purchase common stock at $.01 per share (B) 106,539 shs. 01/14/00 658,751 -- ------------ ------------ 4,165,169 3,913,750 ------------ ------------ * 08/01/02 and 01/17/03 -------------------------------------------------------------------------------- 18 CONSOLIDATED SCHEDULE OF INVESTMENTS (CONT.) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Shares, Units, Warrants, Ownership or Acquisition CORPORATE RESTRICTED SECURITIES (A) (CONTINUED) Principal Amount Date Cost Fair Value ------------ ------------ ------------ ------------ SYNVENTIVE EQUITY LLC A manufacturer of hot runner systems used in the plastic injection molding process. 12% Senior Subordinated Note due 2007 $ 1,841,667 08/21/03 $ 1,773,893 $ 1,878,500 Limited Partnership Interest (B) 0.61% int. 08/20/03 283,333 283,333 Warrant, exercisable until 2011, to purchase common stock at $.01 per share (B) 86,780 shs. 08/21/03 85,000 868 ------------ ------------ 2,142,226 2,162,701 ------------ ------------ THE TRANZONIC COMPANIES A producer of commercial and industrial supplies, such as safety products, janitorial supplies, work apparel, washroom and restroom supplies and sanitary care products. 13% Senior Subordinated Note due 2009 $ 2,712,000 02/05/98 2,483,428 2,712,000 Common Stock (B) 630 shs. 02/04/98 630,000 534,477 Warrant, exercisable until 2006, to purchase common stock at $.01 per share (B) 444 shs. 02/05/98 368,832 376,675 ------------ ------------ 3,482,260 3,623,152 ------------ ------------ TIDEWATER HOLDINGS, INC. An operator of a barge transportation line on the Columbia/Snake River system. 17% Preferred Stock (B) 560 shs. 12/23/02 560,000 532,000 Convertible Preferred Stock, convertible into common stock at $1,000 per share (B) 1,120 shs. 07/25/96 1,120,000 1,008,000 Warrant, exercisable until 2008, to purchase common stock at $.01 per share (B) 474 shs. 07/25/96 48,216 426,384 ------------ ------------ 1,728,216 1,966,384 ------------ ------------ TINNERMAN-PALNUT ENGINEERED COMPONENTS A manufacturer of precision engineered metal and plastic fasteners and assembly components. 12.75% Senior Subordinated Note due 2008 $ 1,125,000 12/06/01 863,812 1,136,250 Class B Unit (B) 100,000 uts. 12/06/01 73,529 66,177 Class C Unit (B) 174,125 uts. 12/06/01 128,033 115,231 ------------ ------------ 1,065,374 1,317,658 ------------ ------------ TOMAH HOLDINGS, INC. A manufacturer of specialty chemicals. 16% Senior Subordinated Note due 2011 $ 1,416,667 12/08/03 1,365,371 1,448,523 16% Preferred Stock Series A (B) 37 shs. 12/08/03 631,630 644,355 Common Stock (B) 5,269 shs. 12/08/03 131,471 118,323 ------------ ------------ 2,128,472 2,211,201 ------------ ------------ TRONAIR, INC. A designer, engineer and manufacturer of ground support equipment for the business, commuter and commercial aviation markets. 10.5% Senior Secured Term Note due 2008 $ 1,579,293 01/20/00 1,579,293 1,564,492 12% Senior Subordinated Note due 2010 $ 1,326,500 01/20/00 1,261,379 1,311,814 Common Stock (B) 227,400 shs. 01/20/00 227,400 181,920 Warrant, exercisable until 2010, to purchase common stock at $1 per share (B) 260,563 shs. 01/20/00 98,540 2,606 ------------ ------------ 3,166,612 3,060,832 ------------ ------------ -------------------------------------------------------------------------------- 19 CONSOLIDATED SCHEDULE OF INVESTMENTS (CONT.) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Shares, Units, Warrants, Ownership or Acquisition CORPORATE RESTRICTED SECURITIES (A) (CONTINUED) Principal Amount Date Cost Fair Value ------------ ------------ ------------ ------------ TRUSTILE DOORS, INC. A manufacturer and distributor of interior doors. 12.5% Senior Subordinated Note due 2010 $ 1,062,500 04/11/03 $ 979,923 $ 1,075,244 Warrant, exercisable until 2010, to purchase common stock at $.01 per share (B) 5,781 shs. 04/11/03 95,625 58 ------------ ------------ 1,075,548 1,075,302 ------------ ------------ TUBULAR TEXTILE MACHINERY A designer, manufacturer, sale and servicer of finishing machinery for the knit and woven segments of the global textile industry. 12% Senior Subordinated Note due 2014 $ 1,234,551 05/28/04 1,106,556 1,258,232 8.75% Senior Secured Note due 2011 $ 716,292 05/28/04 716,292 733,910 Common Stock (B) 674,157 shs. 05/28/04 674,157 606,741 Warrant, exercisable until 2012, to purchase common stock at $1 per share (B) 203,912 shs. 05/28/04 130,788 2,039 ------------ ------------ 2,627,793 2,600,922 ------------ ------------ TVI, INC. A retailer of used clothing in the United States, Canada and Australia. Common Stock (B) 354,167 shs. 05/02/00 267,786 414,375 ------------ ------------ U S M HOLDINGS CORP. A provider of facility maintenance services to retail and corporate clients with multiple locations. 12% Senior Subordinated Note due 2011 $ 1,789,474 08/06/03 1,515,421 1,827,074 Preferred Stock (B) 3,345 shs. 08/06/03 334,494 301,045 Common Stock (B) 1,032 shs. 08/06/03 1,032 929 Warrant, exercisable until 2011, to purchase common stock at $.01 per share (B) 949 shs. 08/06/03 298,198 9 ------------ ------------ 2,149,145 2,129,057 ------------ ------------ U-LINE CORPORATION A manufacturer of high-end, built-in, undercounter icemaking, wine storage and refrigeration appliances. 12.5% Senior Subordinated Note due 2012 $ 1,882,100 04/30/04 1,675,711 1,907,576 10% Jr Subordinated Note due 2012 $ 60,700 04/30/04 60,700 60,734 Common Stock (B) 182 shs. 04/30/04 182,200 163,980 Warrant, exercisable until 2012, to purchase common stock at $1 per share (B) 230 shs. 04/30/04 211,736 2 ------------ ------------ 2,130,347 2,132,292 ------------ ------------ VICTORY VENTURES LLC An acquirer of controlling or substantial interests in other entities. Series A Preferred Units (B) 0.13% int. 12/02/96 1 2 ------------ ------------ -------------------------------------------------------------------------------- 20 CONSOLIDATED SCHEDULE OF INVESTMENTS (CONT.) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Shares, Units, Warrants, Ownership or Acquisition CORPORATE RESTRICTED SECURITIES (A) (CONTINUED) Principal Amount Date Cost Fair Value ------------ ------------ ------------ ------------ VITALITY FOODSERVICE, INC. A non-carbonated beverage dispensing company focused on the foodservice industry. 13% Senior Subordinated Note due 2011 $ 1,887,288 09/24/04 $ 1,700,628 $ 1,903,980 Common Stock (B) 23,771 shs. 09/24/04 237,710 213,939 Warrant, exercisable until 2012, to purchase common stock at $.01 per share (B) 23,787 shs. 09/24/04 186,883 238 ------------ ------------ 2,125,221 2,118,157 ------------ ------------ VITEX PACKAGING GROUP, INC. A manufacturer of specialty packaging, primarily envelopes and tags used on tea bags and medical and food products. 12.5% Senior Subordinated Note due 2012 $ 1,700,000 07/19/04 1,483,065 1,701,690 Limited Partnership Interest Class A (B) 414,375 uts. 07/19/04 414,375 372,938 Limited Partnership Interest Class B (B) 182,935 uts. 07/19/04 182,935 164,642 ------------ ------------ 2,080,375 2,239,270 ------------ ------------ WALLS INDUSTRIES, INC. A provider of branded workwear and sporting goods apparel. 10% Senior Subordinated Lien Note due 2009 $ 1,043,860 07/12/04 1,043,860 1,028,686 14% Senior Subordinated Note due 2012 $ 1,043,859 07/12/04 1,041,026 1,027,765 Limited Partnership Interest (B) 37,281 uts. 07/12/04 37,281 33,553 Warrant, exercisable until 2014, to purchase common stock at $.01 per share (B) 4,029 shs. 07/12/04 2,833 40 ------------ ------------ 2,125,000 2,090,044 ------------ ------------ WASHINGTON INVENTORY SERVICES, INC. A provider of physical inventory taking and other related services to retailers. 12.5% Senior Subordinated Note due 2011 $ 1,075,768 11/03/00 1,055,128 1,097,283 Senior Preferred Stock (B) 4,692 shs. 11/01/00 224,031 218,567 Class B Common Stock (B) 8,959 shs. 11/01/00 8,959 82,486 Warrant, exercisable until 2011, to purchase common stock at $.01 per share (B) 3,979 shs. 11/03/00 -- 36,599 ------------ ------------ 1,288,118 1,434,935 ------------ ------------ WEASLER HOLDINGS LLC A manufacturer of mechanical power transmission components for the agricultural, lawn and turf industries. Limited Partnership Interest (B) 1.55% int. 02/03/03 101,190 97,142 Warrant, exercisable until 2010, to purchase common stock at $.01 per share (B) 256 shs. 02/04/03 209,829 3 ------------ ------------ 311,019 97,145 ------------ ------------ WICOR AMERICAS, INC. A manufacturer of cellulose based insulation products, systems and services for electrical transformer equipment manufacturers. 20% Senior Subordinated Secured Note due 2009 $ 2,520,040 11/09/01 2,510,467 2,385,303 ------------ ------------ TOTAL PRIVATE PLACEMENT INVESTMENTS $170,630,816 $155,523,703 ------------ ------------ -------------------------------------------------------------------------------- 21 CONSOLIDATED SCHEDULE OF INVESTMENTS(CONT) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Shares or Interest Due Principal CORPORATE RESTRICTED SECURITIES (A) (CONTINUED) Rate Date Amount Cost Fair Value ---- ---- ------ ---- ---------- RULE 144A SECURITIES - 10.02%: (A) BONDS - 9.63% A E S Corporation 8.750% 05/15/13 $ 1,025,000 $ 1,131,599 $ 1,155,687 A E S Corporation 9.000 05/15/15 200,000 200,000 225,500 Appleton Papers Inc. 8.125 06/15/11 300,000 300,000 309,000 Argo Tech Corporation 9.250 06/01/11 850,000 850,000 911,625 BCP Caylux Holding Lux SCA 9.625 06/15/14 750,000 752,455 810,000 Blockbuster, Inc. 9.000 09/01/12 350,000 350,000 363,125 Bombardier Capital, Inc. 6.300 05/01/14 1,000,000 890,000 863,638 Cablevision Systems Corporation 5.670 04/01/09 1,000,000 1,000,000 1,040,000 Cadmus Communications Corporation 8.375 06/15/14 750,000 750,000 808,125 Calpine Corporation 8.750 07/15/13 500,000 465,000 377,500 Charter Communications Op LLC 8.000 04/30/12 250,000 249,375 249,375 Chesapeake Energy Corporation 7.000 08/15/14 325,000 325,000 343,688 Collins & Aikman Products Co. 12.875 08/24/12 300,000 289,323 276,750 Dana Credit Corporation 8.375 08/15/07 500,000 500,000 551,250 GulfMark Offshore, Inc. 7.750 07/15/14 565,000 562,599 572,063 Imax Corporation 9.625 12/01/10 500,000 500,000 498,750 Interactive Health LLC 7.250 04/01/11 900,000 732,628 774,000 Jostens I H Corporation 7.625 10/01/12 1,250,000 1,250,000 1,256,250 K 2, Inc. 7.375 07/01/14 325,000 325,000 344,500 Land O'Lakes, Inc. 9.000 12/15/10 750,000 750,000 780,937 M G M Mirage, Inc. 6.000 10/01/09 375,000 380,593 380,156 Metaldyne Corporation 10.000 11/01/13 510,000 514,063 474,300 N R G Energy, Inc. 8.000 12/15/13 700,000 700,000 749,875 North American Energy Partners 8.750 12/01/11 400,000 400,000 390,000 O E D Corp/Diamond Jo Company Guarantee 8.750 04/15/12 1,000,000 985,960 925,000 Pacific Energy Partners 7.125 06/15/14 500,000 491,270 541,250 Pinnacle Foods Holding 8.250 12/01/13 450,000 450,000 424,125 Sheridan Acquisition Corporation 10.250 08/15/11 375,000 370,001 405,938 Siebe PLC 6.500 01/15/10 650,000 572,000 588,250 Stanadyne Corporation 10.000 08/15/14 1,500,000 1,500,000 1,560,000 Tenet Healthcare Corporation 9.875 07/01/14 500,000 488,370 522,500 Warner Music Group 7.375 04/15/14 275,000 275,000 284,625 Wornick Co. 10.875 07/15/11 750,000 750,000 802,500 ------------ ------------ ------------ TOTAL BONDS $ 20,375,000 20,050,236 20,560,282 ============ ------------ ------------ COMMON STOCK - 0.00% Jordan Telecom Products (B) 70 $ 14,000 -- ------------ ------------ TOTAL COMMON STOCK 14,000 -- ------------ ------------ CONVERTIBLE BONDS - 0.39% Cymer, Inc. 3.500% 02/15/09 $ 850,000 $ 850,000 $ 840,438 ------------ ------------ ------------ TOTAL CONVERTIBLE BONDS $ 850,000 850,000 840,438 ============ ------------ ------------ CONVERTIBLE PREFERRED STOCK - 0.00% D T Industries, Inc. (B) 20,000 $ 1,000,000 -- ------------ ------------ TOTAL CONVERTIBLE PREFERRED 1,000,000 -- ------------ ------------ WARRANTS - 0.00% Winsloew Furniture, Inc. (B) 900 $ 9 $ 14 ------------ ------------ TOTAL WARRANTS 9 14 ------------ ------------ TOTAL RULE 144A SECURITIES 21,914,245 21,400,734 ------------ ------------ TOTAL CORPORATE RESTRICTED SECURITIES $192,545,061 $176,924,437 ------------ ------------ -------------------------------------------------------------------------------- 22 CONSOLIDATED SCHEDULE OF INVESTMENTS(CONT) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Interest Due Principal CORPORATE PUBLIC SECURITIES - 23.15%: (A) Rate Date Amount Cost Market Value ---- ---- ------ ---- ------------ BONDS - 20.28% A E P Industries, Inc. 9.875% 11/15/07 $ 350,000 $ 333,375 $ 356,563 Activant Solutions Inc 10.500 06/15/11 700,000 703,738 721,000 Aearo Co. 8.250 04/15/12 450,000 450,000 459,000 Alamosa Delaware, Inc. 11.000 07/31/10 325,000 330,477 368,062 Alamosa Delaware, Inc. 8.500 01/31/12 400,000 400,000 405,000 Allied Waste NA 7.375 04/15/14 1,000,000 975,000 962,500 American Media Operation, Inc. 8.875 01/15/11 900,000 901,718 933,750 Bally Total Fitness Holding Corporation 9.875 10/15/07 135,000 128,925 109,350 C S C Holdings, Inc. 7.625 04/01/11 500,000 502,244 526,875 Cenveo Corporation 7.875 12/01/13 1,100,000 1,100,000 1,072,500 Charter Comm Holdings LLC 10.000 04/01/09 1,000,000 815,000 810,000 Chemed Corporation 8.750 02/24/11 1,125,000 1,125,000 1,158,750 Cincinnati Bell, Inc. 8.375 01/15/14 1,100,000 1,007,500 1,003,750 Collins & Aikman Products Co. 10.750 12/31/11 700,000 722,077 700,000 Dana Corporation 9.000 08/15/11 500,000 526,977 603,750 Del Monte Corporation 8.625 12/15/12 225,000 225,000 250,312 Dollar Financial Group 9.750 11/15/11 600,000 600,000 636,000 Dominos, Inc. 8.250 07/01/11 292,000 289,892 316,090 Dynegy Holdings, Inc. 6.875 04/01/11 500,000 422,500 476,250 Esterline Technologies 7.750 06/15/13 200,000 200,000 214,000 Flextronics Intl Ltd 6.500 05/15/13 400,000 400,000 409,000 G F S I, Inc. 9.625 03/01/07 750,000 673,418 725,625 Gencorp, Inc. 9.500 08/15/13 400,000 400,000 428,000 General Nutrition Center 8.500 12/01/10 800,000 820,534 818,000 Goodyear Tire & Rubber Co. 7.857 08/15/11 650,000 607,750 612,625 Great Lakes Dredge & Dock Corporation 7.750 12/15/13 750,000 679,250 648,750 Houghton Mifflin Co. 9.875 02/01/13 1,000,000 1,056,671 1,050,000 Huntsman LLC 11.625 10/15/10 500,000 494,075 578,750 Intrawest Corporation 7.500 10/15/13 500,000 500,000 518,125 Koppers Inc. 9.875 10/15/13 700,000 700,000 773,500 Leucadia National Corporation 7.000 08/15/13 650,000 663,801 646,750 Lodgenet Entertainment Corp. 9.500 06/15/13 425,000 425,000 463,250 Lyondell Chemical Co. 9.500 12/15/08 900,000 923,539 982,125 M C I, Inc. 7.735 05/01/14 1,000,000 905,000 947,500 M S X International, Inc. 11.000 10/15/07 350,000 347,004 346,500 Majestic Star Casino LLC 9.500 10/15/10 500,000 500,000 510,000 Manitowoc Company, Inc. 7.125 11/01/13 200,000 200,000 211,500 Mediacom LLC/Mediacom Capital 9.500 01/15/13 1,150,000 1,136,000 1,106,875 Metaldyne Corporation 11.000 06/15/12 750,000 601,250 596,250 Mrs Fields Brands/Finance 11.500 03/15/11 750,000 713,710 731,250 Nalco Company 7.750 11/15/11 500,000 500,000 530,000 National Wine & Spirits, Inc. 10.125 01/15/09 500,000 485,250 480,000 Neff Corporation 10.250 06/01/08 170,000 168,062 144,500 Nextel Communications Corporation 7.375 08/01/15 700,000 714,238 752,500 Numatics, Inc. 9.625 04/01/08 550,000 539,705 495,000 O M Group, Inc. 9.250 12/15/11 750,000 777,882 781,875 Offshore Logistics, Inc. 6.125 06/15/13 450,000 450,000 456,750 Pliant Corporation 0.000 06/15/09 875,000 743,979 748,125 Pliant Corporation 13.000 06/01/10 1,000,000 936,875 860,000 Quintiles Transnational Corporation 10.000 10/01/13 500,000 500,000 530,000 Rayovac Corporation 8.500 10/01/13 200,000 200,000 217,000 Rent-A-Center, Inc. 7.500 05/01/10 400,000 400,000 414,000 Rent-Way, Inc. 11.875 06/15/10 800,000 848,346 872,000 Rhodia SA 10.250 06/01/10 800,000 830,161 828,000 Rhodia SA 8.875 06/01/11 500,000 499,668 435,000 S P X Corporation 6.250 06/15/11 400,000 400,000 390,000 Sea Containers Ltd. 10.500 05/15/12 785,000 765,065 801,681 Service Corp International 6.000 12/15/05 41,000 41,232 42,128 -------------------------------------------------------------------------------- 23 CONSOLIDATED SCHEDULE OF INVESTMENTS(CONT) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Shares or Interest Due Principal CORPORATE PUBLIC SECURITIES: (A)(CONTINUED) Rate Date Amount Cost Market Value ---- ---- ------ ---- ------------ Ship Finance Intl Ltd 8.500% 12/15/13 $ 750,000 $ 750,000 $ 746,250 Sports Club Co. 11.375 03/15/06 150,000 145,500 142,500 Tekni-Plex, Inc. 12.750 06/15/10 1,000,000 960,125 835,000 Telex Communications, Inc. 11.500 10/15/08 500,000 500,000 540,000 Telex Communications, Inc. 0.000 01/15/09 471,915 206,820 259,553 Tenet Healthcare Corporation 6.375 12/01/11 500,000 482,500 448,750 Tenneco Automotive, Inc. 10.250 07/15/13 400,000 400,000 456,000 Thermadyne LLC 9.250 02/01/14 750,000 738,750 729,375 Triton P C S, Inc. 8.500 06/01/13 550,000 550,000 499,125 United Rentals, Inc. 7.750 11/15/13 625,000 625,000 585,938 United Rentals, Inc. 7.000 02/15/14 500,000 500,000 443,750 Vicorp Restaurants Inc 10.500 04/15/11 600,000 592,746 597,000 Von Hoffman Press, Inc. 10.250 03/15/09 200,000 209,797 222,000 Vought Aircraft Industries 8.000 07/15/11 1,000,000 1,001,168 960,000 Williams Scotsman, Inc. 9.875 06/01/07 500,000 492,500 478,750 Winsloew Furniture, Inc. 12.750 08/15/07 455,000 444,622 375,375 ------------ ------------ ------------ TOTAL BONDS $ 44,099,915 42,906,416 43,285,802 ============ ------------ ------------ COMMON STOCK - 2.37% D T Industries, Inc. (B) 178,876 $ 1,168,093 $ 537 E O S International, Inc. (B) 100,000 300,000 12,000 H C I Direct, Inc. (B) 1,000 -- -- PepsiAmericas, Inc. 92,145 2,006,365 1,759,969 Rent-Way, Inc. (B) 92,866 916,263 636,132 Supreme Industries, Inc. 115,722 267,325 698,961 T G C Industries, Inc. (B) 6,361 9,496 14,630 Transmontaigne, Inc. (B) 333,326 1,109,177 1,939,957 ------------ ------------ TOTAL COMMON STOCK 5,776,719 5,062,186 ------------ ------------ CONVERTIBLE BONDS - 0.50% Leucadia National Corporation 3.750% 04/15/14 $ 1,000,000 $ 1,000,000 $ 1,075,000 ------------ ------------ ------------ TOTAL CONVERTIBLE BONDS $ 1,000,000 1,000,000 1,075,000 ============ ------------ ------------ PREFERRED STOCK - 0.00% Telex Communications, Inc. 17,707 $ 1 $ 177 ------------ ------------ TOTAL PREFERRED STOCK 1 177 ------------ ------------ WARRANTS - 0.00% Telex Communications, Inc. 698 $ 7 $ 7 ------------ ------------ TOTAL WARRANTS 7 7 ------------ ------------ TOTAL CORPORATE PUBLIC SECURITIES $ 49,683,143 $ 49,423,172 ------------ ------------ Interest Due Principal SHORT-TERM SECURITIES: Rate/Yield Date Amount Cost Market Value ---------- ---- ------ ---- ------------ COMMERCIAL PAPER - 2.25% Textron Financial Corporation 1.800% 10/06/04 $ 3,205,000 $ 3,204,199 $ 3,204,199 Wisconsin Electric Power Co. 1.760 10/04/04 1,590,000 1,589,767 1,589,767 ------------ ------------ ------------ TOTAL SHORT-TERM SECURITIES $ 4,795,000 $ 4,793,966 $ 4,793,966 ============ ------------ ------------ TOTAL INVESTMENTS 108.27% $247,022,170 $231,141,575 ============ ------------ Other Assets 5.32 11,361,470 Liabilities (13.59) (29,021,062) -------- ------------ TOTAL NET ASSETS 100.00% $213,481,986 ======== ============ (A) In each of the convertible note, warrant, convertible preferred and common stock investments, the issuer has agreed to provide certain registration rights. (B) Non-income producing security. -------------------------------------------------------------------------------- 24 CONSOLIDATED SCHEDULE OF INVESTMENTS(CONT) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Fair Value/ Fair Value/ INDUSTRY CLASSIFICATION: Market Value INDUSTRY CLASSIFICATION:(CONT.) Market Value -------------- -------------- AEROSPACE - 1.97% BUILDINGS & REAL ESTATE - 5.06% Argo Tech Corporation $ 911,625 A W C Holding Company $ 2,109,898 Esterline Technologies 214,000 Adorn, Inc. 2,233,353 Qualis Automotive LLC 2,123,226 Eagle Window & Door Holding Co. 3,143,172 Vought Aircraft Industries 960,000 Shelter Acquisition, Inc. 2,233,884 -------------- TruStile Doors, Inc. 1,075,302 4,208,851 -------------- -------------- 10,795,609 -------------- AUTOMOBILE - 7.77% CARGO TRANSPORT - 2.43% America's Body Company, Inc./LCP Kenan-Advantage Transport Company 2,467,787 Holding Co. 2,625,002 Ship Finance International Ltd. 746,250 Collins & Aikman Products Co. 976,750 Tidewater Holdings, Inc. 1,966,384 Dana Corporation 603,750 -------------- Gencorp, Inc. 428,000 5,180,421 Goodyear Tire & Rubber Co. 612,625 -------------- Jason, Inc. 1,573,293 CHEMICAL, PLASTICS & RUBBER - 3.09% LIH Investors, L.P. 5,140,331 Capital Specialty Plastics, Inc. 503 Metaldyne Corporation 1,070,550 Huntsman LLC 578,750 Nyloncraft, Inc. 3,095,350 Koppers Inc. 773,500 Tenneco Automotive, Inc. 456,000 Lyondell Chemical Co. 982,125 -------------- O M Group, Inc. 781,875 16,581,651 Process Chemicals LLC -- -------------- Rhodia SA 1,263,000 BEVERAGE, DRUG & FOOD - 6.18% Tomah Holdings, Inc. 2,211,201 Beta Brands Ltd -- -------------- Cains Foods, L.P. 194,418 6,590,954 Del Monte Corporation 250,312 -------------- Dominos, Inc. 316,090 CONSUMER PRODUCTS - 8.07% Eagle Pack Pet Foods, Inc. 1,059,296 Appleton Papers, Inc. 309,000 Land O' Lakes, Inc. 780,937 Colibri Holdings Corporation 1,912,044 National Wine & Spirit Inc. 480,000 Euro-Pro Corporation 2,145,118 Nonni's Food Company, Inc. 2,190,616 G F S I, Inc. 725,625 PepsiAmericas, Inc. 1,759,969 H C I Direct, Inc. -- Pinnacle Foods Holdings 424,125 K 2, Inc. 344,500 River Ranch Fresh Foods LLC 2,114,103 Maverick Acquisition Company 1,160,169 Specialty Foods Group, Inc. 93,180 Neff Motivation, Inc. 1,185,619 Vicorp Restaurants, Inc. 597,000 Rayovac Corporation 217,000 Vitality Foodservice, Inc. 2,118,157 Royal Baths Manufacturing Company 1,063,029 Wornick Co. 802,500 Savage Sports Holdings, Inc. 2,082,830 -------------- The Tranzonic Companies 3,623,152 13,180,703 Walls Industries, Inc. 2,090,044 -------------- Winsloew Furniture, Inc. 375,389 BROADCASTING -------------- & ENTERTAINMENT - 2.47% 17,233,519 C S C Holdings, Inc. 526,875 -------------- Cablevision Systems Corporation 1,040,000 CONTAINERS, PACKAGING & GLASS - 6.60% Cenveo Corporation 1,072,500 A E P Industries, Inc. 356,563 Charter Communications Holdings LLC 810,000 Paradigm Packaging, Inc. 2,433,125 Charter Communications Op LLC 249,375 Pliant Corporation 1,608,125 Lodgenet Entertainment Corporation 463,250 Sea Containers Ltd. 801,681 Mediacom Communications Corporation 1,106,875 Selig Acquisition Corporation 2,585,497 -------------- Snyder Industries, Inc. 3,233,437 5,268,875 Tekni-Plex, Inc. 835,000 -------------- Vitex Packaging, Inc. 2,239,270 -------------- 14,092,698 -------------- -------------------------------------------------------------------------------- 25 CONSOLIDATED SCHEDULE OF INVESTMENTS(CONT) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Fair Value/ Fair Value/ INDUSTRY CLASSIFICATION: (CONT.) Market Value INDUSTRY CLASSIFICATION:(CONT.) Market Value -------------- -------------- DISTRIBUTION - 6.27% FARMING & AGRICULTURE - 0.00% Corvest Group, Inc. $ 3,712,360 Polymer Technologies, Inc./Poli-Twine G C-Sun Holdings LP 1,293,750 Western, Inc. -- Kele and Associates, Inc. 2,321,133 Protein Genetics, Inc. -- QualServ Corporation 2,137,532 -------------- Strategic Equip & Supply Corporation, Inc. 3,913,750 -------------- FINANCIAL SERVICES - 2.33% 13,378,525 BCP Caylux Holding Lux SCA $ 810,000 -------------- Dana Credit Corporation 551,250 DIVERSIFIED/CONGLOMERATE, Dollar Financial Group 636,000 MANUFACTURING - 4.21% East River Ventures I, L.P. 27,300 Activant Solutions Inc 721,000 Highgate Capital LLC 2,723 Coining of America LLC 1,937,802 Leucadia National Corporation 1,721,750 Dexter Magnetics Technologies, Inc. 989,209 Mrs. Fields Brands / Finance 731,250 Evans Consoles, Inc. 602,000 Victory Ventures LLC 2 Great Lakes Dredge & Dock Corporation 648,750 Williams Scotsman, Inc. 478,750 S P X Corporation 390,000 -------------- Tinnerman-Palnut Engineered Components 1,317,658 Wicor Americas, Inc. 2,385,303 4,959,025 -------------- -------------- 8,991,722 -------------- HEALTHCARE, EDUCATION DIVERSIFIED/CONGLOMERATE, & CHILDCARE - 4.25% SERVICE - 6.85% A T I Acquisition Company 2,115,389 Allied Waste NA 962,500 American Hospice Management 2,426,740 Bombardier Capital, Inc. 863,638 Interactive Health LLC 774,000 CapeSuccess LLC 5,862 MedAssist, Inc. 2,241,924 Chemed Corporation 2,273,552 Quintiles Transnational Corporation 530,000 Diversco, Inc./DHI Holdings, Inc. 1,392,069 Tenet Healthcare Corporation 971,250 Dwyer Group, Inc. 2,440,293 -------------- Examination Management Services, Inc. -- 9,059,303 Hamilton Funeral Services Centers, Inc. 380,271 -------------- Lancaster Laboratories, Inc. 821,243 Moss, Inc. 1,521,406 HOME & OFFICE FURNISHINGS, M S X International, Inc. 346,500 HOUSEWARES, AND DURABLE Service Corp International 42,128 CONSUMER PRODUCTS - 4.04% U S M Holdings Corporation 2,129,057 Home Decor Holding Company 2,130,938 Washington Inventory Services, Inc. 1,434,935 Hussey Seating Corporation 3,332,316 -------------- Sport Court Int'l, Inc. 1,021,629 14,613,454 U-Line Corporation 2,132,292 -------------- -------------- ELECTRONICS - 3.59% 8,617,175 A E S Corporation 1,381,187 -------------- Calpine Corporation 377,500 Directed Electronics, Inc. 2,143,423 LEISURE, AMUSEMENT, Flextronics International Ltd. 409,000 ENTERTAINMENT - 2.33% N R G Energy, Inc. 749,875 Bally Total Fitness Holding Corporation 109,350 Precision Dynamics, Inc. 2,021,345 IMAX Corporation 498,750 Siebe PLC 588,250 Intrawest Corporation 518,125 -------------- Keepsake Quilting, Inc. 1,749,769 7,670,580 M G M Mirage, Inc. 380,156 -------------- Majestic Star Casino LLC 510,000 O E D Corp/Diamond Jo Company Guarantee 925,000 Warner Music Group 284,625 -------------- 4,975,775 -------------- -------------------------------------------------------------------------------- 26 CONSOLIDATED SCHEDULE OF INVESTMENTS(CONT) MASSMUTUAL CORPORATE INVESTORS September 30, 2004 (Unaudited) Fair Value/ Fair Value/ INDUSTRY CLASSIFICATION: (CONT.) Market Value INDUSTRY CLASSIFICATION:(CONT.) Market Value -------------- -------------- MACHINERY - 12.20% PUBLISHING/PRINTING - 2.19% Aearo Co. $ 459,000 American Media Operation, Inc. $ 933,750 C & M Conveyor, Inc. 2,113,836 Cadmus Communications Corporation 808,125 D T Industries, Inc. 537 Houghton Mifflin Co. 1,050,000 Integration Technology Systems, Inc. 1,666,474 Jostens I H Corporation 1,256,250 Manitowoc Company, Inc. 211,500 Sheridan Acquisition Corporation 405,938 Maxon Corporation 2,575,894 Von Hoffman Press, Inc. 222,000 N P C, Inc. 3,590,182 -------------- Numatics, Inc. 495,000 4,676,063 P W Eagle, Inc. 1,453,736 -------------- Safety Speed Cut Manufacturing Company, Inc. 3,271,305 RETAIL STORES - 5.12% Stanadyne Corporation 1,560,000 Blockbuster, Inc. 363,125 Synventive Equity LLC 2,162,701 E O S International, Inc. 12,000 Thermadyne LLC 729,375 General Nutrition Center 818,000 Tronair, Inc. 3,060,832 Neff Corporation 144,500 Tubular Textile Machinery 2,600,922 Olympic Sales, Inc. 3,555,609 Weasler Holdings LLC 97,145 P H I Holding Company 2,530,449 -------------- Rent-A-Center, Inc. 414,000 26,048,439 Rent-Way, Inc. 1,508,132 -------------- Sports Club Co. 142,500 TVI, Inc. 414,375 MEDICAL DEVICES/BIOTECH - 2.47% United Rentals, Inc. 1,029,688 Bausch & Lomb, Inc. -- -------------- Beacon Medical Products, Inc. 1,975,446 10,932,378 Coeur, Inc. 1,134,870 -------------- D H D Healthcare, Inc. -- E X C Acquisition Corporation 2,151,457 TECHNOLOGY - 0.60% Invitrogen Corporation -- Cymer, Inc. 840,438 -------------- Delstar Holding Corporation 441,596 5,261,773 -------------- -------------- 1,282,034 -------------- MINING, STEEL, IRON & NON PRECIOUS METALS - 0.05% TELECOMMUNICATIONS - 2.24% Better Minerals & Aggregates 108,991 Alamosa Delaware, Inc. 773,062 -------------- Cincinnati Bell, Inc. 1,003,750 OIL AND GAS - 2.99% Jordan Telecom Products -- Centerpoint Energy, Inc. -- MCI, Inc. 947,500 Chesapeake Energy Corporation 343,688 Nextel Communications Corporation 752,500 Dynegy Holdings, Inc. 476,250 Telex Communications, Inc. 799,737 GulfMark Offshore, Inc. 572,063 Triton P C S, Inc. 499,125 Mustang Ventures Company 938,300 -------------- North American Energy Partners 390,000 4,775,674 Offshore Logistics, Inc. 456,750 -------------- Pacific Energy Partners 541,250 UTILITIES - 0.25% Supreme Industries, Inc. 698,961 Nalco Co. 530,000 T G C Industries, Inc. 14,630 -------------- Transmontaigne, Inc. 1,939,957 -------------- Total Investments - 106.02% $ 226,347,609 6,371,849 ============== -------------- PHARMACEUTICALS - 0.45% Enzymatic Therapy, Inc. 961,568 -------------- -------------------------------------------------------------------------------- 27 ITEM 2. CONTROLS AND PROCEDURES. (a) The principal executive officer and principal financial officer of the registrant evaluated the effectiveness of the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940 (the "Act")) as of a date within 90 days of the filing date of this report and based on this evaluation have concluded that such disclosure controls and procedures are effective to provide reasonable assurance that information required to be disclosed by the registrant on Form N-Q is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms. (b) There has been no change in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the Act) that occurred during the registrant's last fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. ITEM 3. EXHIBITS. Certifications pursuant to Rule 30a-2(a) under the Investment Company Act of 1940 (17CFR 270.30a-2(a)) are attached hereto as an exhibit. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934 and 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 Corporate Investors ------------------------------ By (Signature and Title)* /s/ Roger W. Crandall --------------------------------------------- Roger W. Crandall, President Date November 24, 2004 ------------------------------------------------------------------ Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. By (Signature and Title)* /s/ Roger W. Crandall --------------------------------------------- Roger W. Crandall, President Date November 24, 2004 ------------------------------------------------------------------ By (Signature and Title)* /s/ Charles C. McCobb, Jr. --------------------------------------------- Charles C. McCobb, Jr., Vice President and Chief Financial Officer Date November 24, 2004 ------------------------------------------------------------------ * PRINT THE NAME AND TITLE OF EACH SIGNING OFFICER UNDER HIS OR HER SIGNATURE.