BlackRock BBN adds director Mahoney, no holdings

A new director, Francis C. Mahoney, filed an initial Form 3 for BlackRock Taxable Municipal Bond Trust without reporting any current holdings or transactions.

Available on EDGAR 09/17/2026 - 04:41 PM EDT Accepted by SEC EDGAR 09/17/2026 - 04:40 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

BlackRock Taxable Municipal Bond Trust (BBN) reported that Francis C. Mahoney has become a director and a reporting person for the trust through an initial ownership filing. The Form 3 does not list any equity transactions or holdings for Mahoney and includes no Rule 10b5-1 trading plan disclosure.

Key Figures

Buy transactions: 0 transactions / 0 shares Sell transactions: 0 transactions / 0 shares Derivative transactions: 0 transactions / 0 shares

3 metrics

Buy transactions 0 transactions / 0 shares Buy-related activity reported for Francis C. Mahoney in this Form 3

Sell transactions 0 transactions / 0 shares Sell-related activity reported for Francis C. Mahoney in this Form 3

Derivative transactions 0 transactions / 0 shares Derivative-related activity reported in the transaction summary

FAQ

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

What does the Form 3 filing for BBN disclose about Francis C. Mahoney?

The filing shows that Francis C. Mahoney is a director of BlackRock Taxable Municipal Bond Trust and is now a reporting person under SEC rules. It does not report any equity transactions or current holdings for him.

Were any BBN shares bought or sold in this Form 3 filing?

No. The Form 3 for BlackRock Taxable Municipal Bond Trust reports no buy or sell transactions, and the transaction summary shows zero shares bought, sold, acquired, or disposed of.

Does the BBN Form 3 indicate any derivative or option positions for the director?

No. The filing’s derivative summary is empty, and the transaction summary reports zero derivative transactions and zero derivative exercises for Francis C. Mahoney.

Is there any Rule 10b5-1 trading plan noted in the BBN Form 3?

No. The form-level indicator for Rule 10b5-1 plans is null, and there are no footnotes describing any trading plan, so the filing does not affirm trades under a Rule 10b5-1 plan.

Does the Form 3 for BBN report any current holdings for Francis C. Mahoney?

No. The transaction summary shows zero holding entries, and there are no tables listing share ownership, so the filing does not disclose any current BBN holdings for Mahoney.

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

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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^*

Mahoney Francis C.

(Last) (First) (Middle)

50 HUDSON YARDS

(Street)

NEW YORK NEW YORK 10001

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
09/08/2026

3. Issuer Name and Ticker or Trading Symbol
BlackRock Taxable Municipal Bond Trust [ BBN ]

3a. Foreign Trading Symbol

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

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

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

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:

No securities are beneficially owned.

	/s/ Gladys Chang as Attorney-in-Fact	09/17/2026
	** 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.
* Form 3: SEC 1473 (03-26)