SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* MASSACHUSETTS MUTUAL LIFE INSURANCE CO (Last) (First) (Middle) 1295 STATE STREET (Street) SPRINGFIELD MA 01111 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol MASSMUTUAL CORPORATE INVESTORS [ MCI ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner Officer (give title below) X Other (specify below) See Footer
	3. Date of Earliest Transaction (Month/Day/Year) 11/07/2008
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Shares of Beneficial Interest ("Common Shares")	11/07/2008		P		2,800	A	$23.4(1)	79,823	I(2)(3)	By Babson Capital Management LLC
Shares of Beneficial Interest ("Common Shares")	11/10/2008		P		1,300	A	$22.9(4)	81,123	I(2)(3)	By Babson Capital Management LLC
Senior Fixed Rate Convertible Note Due 11/15/2017								1	D(5)
Shares of Beneficial Interest ("Common Shares")								27,009	I	By Cornerstone Real Estate Advisers LLC(6)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person* MASSACHUSETTS MUTUAL LIFE INSURANCE CO (Last) (First) (Middle) 1295 STATE STREET (Street) SPRINGFIELD MA 01111 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) See Footer

1. Name and Address of Reporting Person* BABSON CAPITAL MANAGEMENT LLC (Last) (First) (Middle) 1500 MAIN STREET (Street) SPRINGFIELD MA 01115 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Advisor the to Issuer

Explanation of Responses:

1. Represents average price. Actual purchase prices ranged from $22.40 to $23.59. Babson Capital undertakes to provide full information upon request.

2. Purchased pursuant to Rule 10b5-1 Plan for Babson Capital, the investment adviser to Issuer and wholly-owned indirect subsidiary of MassMutual.

3. The inclusion of the Babson Capital held securities of the Issuer shall not be construed as an admission that MassMutual or Cornerstone Real Estate Advisers LLC ("Cornerstone") is for the purpose of Section 16 of the Securities Exchange Act of 1934, the direct or indirect beneficial owner of any of the securities of the Issuer beneficially owned by Babson Capital.

4. Represents average price. Actual purchase prices ranged from $22.60 to $22.99. Babson Capital undertakes to provide full information upon request.

5. Note held by MassMutual that is convertible based on average price of Issuer's common shares ten days prior to exercise.

6. Cornerstone is a wholly-owned indirect subsidiary of MassMutual.

Remarks:

This a joint filing made on behalf of Massachusetts Mutual Life Insurance Company ("MassMutual") and Babson Capital Management LLC ("Babson Capital").

	By: /s/ Janice Bishop, Assistant Vice President	11/11/2008
	By: /s/ James Masur, Chief Operating Officer & Chief Compliance Officer	11/11/2008
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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