Sec Form 4 Filing - Winn Caroline Ann @ Kayne Anderson Energy Infrastructure Fund, Inc. - 2025-06-24

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

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Winn Caroline Ann 2. Issuer Name and Ticker or Trading Symbol Kayne Anderson Energy Infrastructure Fund, Inc. [ KYN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O KAYNE ANDERSON CAPITAL ADVISORS, LP, 717 TEXAS AVENUE, 22ND FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 06/24/2025 (Street) HOUSTON, TX77002 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Winn Caroline Ann C/O KAYNE ANDERSON CAPITAL ADVISORS, LP 717 TEXAS AVENUE, 22ND FLOOR HOUSTON, TX77002 X Signatures /s/ Caroline Ann Winn 06/25/2025 Signature of Reporting Person Date

Explanation of Responses:

Remarks: On June 24, 2025, Caroline A. Winn notified Kayne Anderson Energy Infrastructure Fund, Inc. (the "Company") of her decision to resign from the Board of Directors of the Company (the "Board"), effective immediately. Ms. Winn qualified as a "disinterested" director of the Company (an "Independent Director") under the Investment Company Act of 1940, as amended. Ms. Winn was designated as a Class III director with a remaining term that otherwise would have expired at the annual meeting of stockholders in 2028 unless reelected. At the time of her resignation, Ms. Winn served on the Audit Committee of the Board. Ms. Winn confirmed that her decision to resign was not the result of any disagreement with the Company on any matter relating to the Company's operations, policies or practices. Ms. Winn was recently promoted to the position of executive vice president of Sempra overseeing Southern California Gas Company and San Diego Gas & Electric Company. The Company congratulates Ms. Winn on her promotion and sincerely thanks her for more than three years of dedicated service on the Board. Following her resignation, the Board is comprised of seven directors, six of whom are Independent Directors.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

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