Thornburg Income Builder director buys 300 shares

A Thornburg Income Builder Opportunities Trust director increased her direct holdings through a 300-share open-market purchase.

Rhea-AI Filing Summary

Thornburg Income Builder Opportunities Trust (TBLD) director Anne W. Kritzmire purchased 300 shares of common stock on September 16, 2026 in an open-market or private transaction at a price of $20.78 per share. Following this purchase, she directly owned 5,345 shares, including 205 shares acquired through automatic dividend reinvestment exempt under Rule 16a-11.

Insider Trade Summary

Net Buyer: 300 shares

Net Buy 1 txn

Insider Kritzmire Anne W.

Role Director

Bought 300 shs ($6K)

Type	Security	Shares	Price	Value
Purchase	Common Stock F1	300	$20.78	$6K

Holdings After Transaction: Common Stock — 5,345 shares (Direct)

Footnotes (1)

1. F1. Includes 205 shares resulting from automatic dividend reinvestment in transactions exempt pursuant to Rule 16a-11 under Section 16 of the Securities Exchange Act of 1934.

Key Figures

Shares purchased: 300 shares Purchase price per share: $20.78 per share Total shares owned after transaction: 5,345 shares +2 more

5 metrics

Shares purchased 300 shares Common stock bought on September 16, 2026

Purchase price per share $20.78 per share Open-market or private purchase of TBLD common stock

Total shares owned after transaction 5,345 shares Director’s direct holdings following the September 16, 2026 purchase

Shares from dividend reinvestment 205 shares Portion of post-transaction holdings from automatic dividend reinvestment exempt under Rule 16a-11

Net buy shares 300 shares Net effect of all reported transactions in this Form 4

Key Terms

automatic dividend reinvestment, Rule 16a-11, Section 16 of the Securities Exchange Act of 1934

3 terms

automatic dividend reinvestment financial

"Includes 205 shares resulting from automatic dividend reinvestment in transactions"

Rule 16a-11 regulatory

"automatic dividend reinvestment in transactions exempt pursuant to Rule 16a-11"

Section 16 of the Securities Exchange Act of 1934 regulatory

"Rule 16a-11 under Section 16 of the Securities Exchange Act of 1934"

A provision of federal securities law that requires company insiders—directors, officers and large shareholders—to publicly report their stock holdings and trades and to surrender any “short-swing” profits from purchases and sales within a six-month window. It acts like a rule that forces leaders to announce their trades and prevents quick buy-sell windfalls, giving investors transparency into insider activity and reducing opportunities for unfair gain.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did TBLD director Anne W. Kritzmire report?

Anne W. Kritzmire reported a purchase of 300 TBLD common shares on September 16, 2026 in an open-market or private transaction at $20.78 per share, increasing her direct ownership to 5,345 shares.

At what price were the TBLD shares bought in this Form 4 filing?

The reported purchase price was $20.78 per share for 300 shares of Thornburg Income Builder Opportunities Trust common stock on September 16, 2026.

How many TBLD shares does the director own after the reported transaction?

After the purchase, Anne W. Kritzmire directly owned 5,345 shares of TBLD common stock, which includes 205 shares received through automatic dividend reinvestment.

Were any of the TBLD shares acquired through dividend reinvestment?

Yes. The Form 4 footnote states that the director’s holdings include 205 shares resulting from automatic dividend reinvestment in transactions exempt under Rule 16a-11.

Was this TBLD insider trade made under a Rule 10b5-1 trading plan?

No. The filing’s Rule 10b5-1 checkbox is not checked, and no footnote states that the transaction was made pursuant to a Rule 10b5-1 trading plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/18/2026 - 06:07 PM Accepted by SEC EDGAR 09/18/2026 - 06:07 PM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Kritzmire Anne W.

(Last) (First) (Middle)

2300 NORTH RIDGETOP ROAD

(Street)

SANTA FE NEW MEXICO 87506

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Thornburg Income Builder Opportunities Trust [ TBLD ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/16/2026

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

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/16/2026		P		300	A	$20.78	5,345(1)	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Includes 205 shares resulting from automatic dividend reinvestment in transactions exempt pursuant to Rule 16a-11 under Section 16 of the Securities Exchange Act of 1934.

	/s/ Kellilyn Greco, Attorney-in-Fact	09/18/2026
	** 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 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.
* Form 4: SEC 1474 (03-26)