[Form 3] Western Asset Mortgage Opportunity Fund Inc. Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

Jeffrey Masom submitted an Initial Statement on Form 3 for Western Asset Mortgage Opportunity Fund Inc. (DMO) reporting that he does not beneficially own any securities of the issuer as of the event date 04/29/2025. The filing lists his relationship to the issuer as an officer (Director-Subadviser) and confirms the form was filed by one reporting person. The form includes a signed remark stating "No securities are beneficially owned." This filing is a routine Section 16 disclosure documenting current ownership (or lack thereof) by an insider.

Positive

• Timely, transparent disclosure of insider status and ownership baseline
• Clear statement that no securities are beneficially owned as of 04/29/2025

Negative

• None.

Insights

Corporate Governance Analyst

Form 3 discloses no insider holdings as of 04/29/2025.

The filing shows Jeffrey Masom (listed as an officer and director-subadviser) reported zero beneficially owned shares in DMO on the event date. For insiders, a Form 3 simply establishes a baseline ownership position; here that baseline is a reported absence of holdings.

This is factual disclosure under Section 16 and does not imply misconduct or intent. It provides investors and the issuer with a clear starting record for any future Section 16 changes, such as purchases or option grants.

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Masom Jeffrey

(Last) (First) (Middle)

100 INTERNATIONAL DRIVE

(Street)

BALTIMORE MD 21202

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
04/29/2025

3. Issuer Name and Ticker or Trading Symbol
Western Asset Mortgage Opportunity Fund Inc. [ DMO ]

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

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

5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

No securities are beneficially owned.

	/s/Mitchell O'Brien by Power of Attorney on behalf of Jeffrey Masom	08/28/2025
	** 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 5 (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.

FAQ

What does the Form 3 for Western Asset Mortgage Opportunity Fund (DMO) filed by Jeffrey Masom report?

The Form 3 reports that Jeffrey Masom does not beneficially own any securities of Western Asset Mortgage Opportunity Fund as of the event date 04/29/2025.

What is the relationship of the reporting person to DMO?

The filing lists the reporting person as an Officer with the title noted as Director-Subadviser.

Does this Form 3 indicate any derivative or non-derivative holdings?

No. The filing explicitly states "No securities are beneficially owned," and both Table I and Table II show no holdings.

When was the event date that triggered this Form 3 filing?

The event date requiring the statement is 04/29/2025.

Who signed the Form 3 on behalf of the reporting person?

The document shows it was signed by Mitchell O'Brien by power of attorney on behalf of Jeffrey Masom with a signature date of 08/28/2025.