Kayne Anderson Energy Infrastructure Fund, Inc.

FORM 5

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

ANNUAL 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

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Form 3 Holdings Reported.

Form 4 Transactions Reported.

1. Name and Address of Reporting Person^*

MASSACHUSETTS MUTUAL LIFE INSURANCE CO

(Last)

(First)

(Middle)

1295 STATE STREET

(Street)

SPRINGFIELD

01111

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Kayne Anderson MLP/Midstream Investment Co [ KYN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
	Officer (give title below)	X	Other (specify below)
Former 10% Owner

3. Statement for Issuer's Fiscal Year Ended (Month/Day/Year)
12/31/2019

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	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 at end of Issuer's Fiscal Year (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
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)	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Series C MRPS due 2020							572,000	D
Series FF Senior Unsecured Note							3,600,000	D
Series GG Senior Unsecured Note							500,000	D
Series JJ Unsecured Senior Notes							13,000,000	D
Series KK Senior Unsecured Note							15,600,000	D
Series JJ Unsecured Senior Notes							500,000	I	By Barings LLC⁽¹⁾
Series KK Senior Unsecured Note							600,000	I	By Barings LLC⁽¹⁾
Series C MRPS due 2020							28,000	I	By C.M. Life Insurance company⁽²⁾
Series FF Senior Unsecured Note							400,000	I	By YF Life Insurance International Limited⁽³⁾
Series JJ Unsecured Senior Notes							500,000	I	By YF Life Insurance International Limited⁽³⁾
Series KK Senior Unsecured Note							800,000	I	By YF Life Insurance International Limited⁽³⁾

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)
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)	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Barings LLC is a subsidiary of the Reporting Person.

2. C.M. Life Insurance Company is a wholly-owned subsidiary of the Reporting Person.

3. The inclusion of YF Life Insurance International Limited held securities of the Issuer shall not be construed as an admission that Massachusetts Life Insurance Company 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 YF Life Insurance International Limited. YF Life Insurance International Limited, formerly known as MassMutual Asia Limited was previously an indirect wholly-owned subsidiary of the Reporting Person.

	/s/ Alethea O'Donnell, Head of Corporate Compliance	02/14/2020
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.