SEC FORM 4

SEC FORM 4 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

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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).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Corebridge Financial, Inc.

(Last)

(First)

(Middle)

2919 ALLEN PARKWAY, WOODSON TOWER

(Street)

HOUSTON

77019

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
ClearBridge Energy Midstream Opportunity Fund Inc. [ EMO ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
10/15/2025

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
4.66% Series H Senior Secured Notes due October 15, 2025	10/15/2025		J⁽¹⁾		5,494,298.5	D	$5,592,315.68	$0	I	Held through subsidiaries⁽²⁾⁽³⁾
Series J Mandatory Redeemable Preferred Stock								134,286	I	Held through subsidiary⁽⁴⁾
Series P Mandatory Redeemable Preferred Stock								160,000	I	Held through subsidiary⁽⁴⁾
3.56% Series N Senior Secured Notes due June 11, 2027								$1,492,293.86	I	Held through subsidiary⁽⁴⁾
3.76% Series O Senior Secured Notes due June 11, 2030								$2,051,904.07	I	Held through subsidiaries⁽⁵⁾

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)	Code	V	(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)

1. Name and Address of Reporting Person^*

Corebridge Financial, Inc.

(Last)

(First)

(Middle)

2919 ALLEN PARKWAY, WOODSON TOWER

(Street)

HOUSTON

77019

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

AMERICAN GENERAL LIFE INSURANCE CO

(Last)

(First)

(Middle)

2727-A ALLEN PARKWAY

(Street)

HOUSTON

77019

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

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

Explanation of Responses:

1. The 4.66% Series H Senior Secured Notes were redeemed by the issuer for full payment at maturity of 100% of the aggregate principal amount outstanding of the securities, plus accrued and unpaid interest through the redemption date.

2. American General Life Insurance Company ("AGLIC"), The United States Life Insurance Company in the City of New York ("USL") and The Variable Annuity Life Insurance Company ("VAL"), each an indirect wholly-owned subsidiary of Corebridge Financial, Inc. ("CRBG"), directly held $727,994.46 principal amount, $549,430.31 principal amount and $2,472,434.13 principal amount of the reported securities, respectively.

3. Corebridge Institutional Investments (U.S.), LLC, an indirect wholly owned subsidiary of CRBG, may have been deemed to have beneficial ownership of $1,744,439.63 principal amount of the reported securities held by a controlled subsidiary of American International Group, Inc. ("AIG") pursuant to an investment management agreement. CRBG disclaims beneficial ownership of the securities held by the controlled subsidiary of AIG, and this report shall not be deemed an admission that CRBG was the beneficial owner of such securities, except to the extent of CRBG's pecuniary interest therein.

4. Directly held by AGLIC.

5. AGLIC and USL directly hold $1,380,371.82 principal amount and $671,532.25 principal amount of the reported securities, respectively.

Remarks:

Filed pursuant to Section 30(h) of the Investment Company Act of 1940.

	/s/ Polly Klane, Authorized Signatory of Corebridge Financial, Inc.	10/17/2025
	/s/ Erik Norris, Authorized Signatory of American General Life Insurance Company	10/17/2025
	** 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.

Corebridge Financial, Inc. disposed of $30,725,851,652,150 worth of 4.66% Series H Senior Secured Notes due October 15 (5,494,298 units at $5,592,315.68) (SEC Form 4)