PTY (NYSE: PTY) insider Stephen Chang files Form 3 with no holdings

Rhea-AI Filing Summary

PIMCO Corporate & Income Opportunity Fund insider filing shows no holdings. Stephen Koon Bong Chang, a member of PIMCO's Executive Committee, filed an initial ownership report stating that no securities of the fund are beneficially owned. The filing also notes PIMCO serves as the fund's investment advisor.

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

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1. Name and Address of Reporting Person^*

Chang Stephen Koon Bong

(Last) (First) (Middle)

C/O PIMCO

650 NEWPORT CENTER DRIVE

(Street)

NEWPORT BEACH CA 92660

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
01/22/2026

3. Issuer Name and Ticker or Trading Symbol
PIMCO CORPORATE & INCOME OPPORTUNITY FUND [ PTY ]

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

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

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:

Exhibit List: Exhibit 24 - Power of Attorney. Pacific Investment Management Company LLC ("PIMCO") is the investment advisor of the Issuer. The Reporting Person is a member of PIMCO's Executive Committee.

No securities are beneficially owned.

	/s/ Ryan Leshaw, Attorney-in-Fact for Stephen Koon Bong Chang	02/02/2026
	** 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 PTY Form 3 filed by Stephen Koon Bong Chang show?

The Form 3 shows that no securities are beneficially owned by Stephen Koon Bong Chang in PIMCO Corporate & Income Opportunity Fund. It serves as an initial ownership report confirming he holds no reportable PTY interests.

What is Stephen Koon Bong Chang’s relationship to PIMCO Corporate & Income Opportunity Fund (PTY)?

The filing states that PIMCO is the investment advisor of the fund and Stephen Koon Bong Chang is a member of PIMCO's Executive Committee. His relationship to PTY is through this advisory role, not through reported share ownership.

Does the PTY Form 3 report any derivative securities for Stephen Koon Bong Chang?

No, the Form 3 reports no derivative securities beneficially owned by Stephen Koon Bong Chang. Both the non-derivative and derivative tables contain no reported positions, consistent with the statement that no securities are beneficially owned.

Who signed the PTY Form 3 filed for Stephen Koon Bong Chang?

The Form 3 is signed by /s/ Ryan Leshaw as Attorney-in-Fact for Stephen Koon Bong Chang. The exhibit list references a Power of Attorney, authorizing this individual to sign on the reporting person's behalf.

Why does the PTY Form 3 mention a Power of Attorney?

The filing lists Exhibit 24 - Power of Attorney, indicating Stephen Koon Bong Chang authorized another person to sign SEC ownership reports for him. This allows Attorney-in-Fact Ryan Leshaw to execute the Form 3 on his behalf.