BridgeBio Oncology (BBOT) CEO has RSU shares withheld to cover taxes

Rhea-AI Filing Summary

BridgeBio Oncology Therapeutics, Inc. President and CEO Pedro Beltran had 1,047 shares of Common Stock withheld at $9.03 per share to cover tax obligations from the vesting of restricted stock units.

After this tax-withholding disposition, he directly holds 45,623 shares of the company’s Common Stock. This is a routine, non–open-market event tied to equity compensation rather than an active sale in the market.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Beltran Pedro

Role President and CEO

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	1,047	$9.03	$9K

Holdings After Transaction: Common Stock — 45,623 shares (Direct, null)

Footnotes (1)

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Key Figures

Shares withheld for taxes: 1,047 shares Withholding price per share: $9.03 per share Shares held after transaction: 45,623 shares

3 metrics

Shares withheld for taxes 1,047 shares Common Stock withheld to satisfy tax obligations on RSU vesting

Withholding price per share $9.03 per share Value used for tax-withholding disposition of Common Stock

Shares held after transaction 45,623 shares Direct Common Stock ownership by Pedro Beltran following withholding

Key Terms

restricted stock units, tax withholding obligations, Common Stock

3 terms

restricted stock units financial

"in connection with the vesting of restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding obligations financial

"withheld by the Issuer to satisfy the Reporting Person's tax withholding obligations"

Common Stock financial

"shares of the Issuer's Common Stock withheld by the Issuer"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Form 4 Insider Transactions: What Each Field Means →

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^*

Beltran Pedro

(Last) (First) (Middle)

BRIDGEBIO ONCOLOGY THERAPEUTICS, INC.

256 EAST GRAND AVENUE, SUITE 104

(Street)

SOUTH SAN FRANCISCO CALIFORNIA 94080

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
BridgeBio Oncology Therapeutics, Inc. [ BBOT ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/01/2026

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	04/01/2026		F		1,047(1)	D	$9.03	45,623	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. Represents the number of shares of the Issuer's Common Stock withheld by the Issuer to satisfy the Reporting Person's tax withholding obligations in connection with the vesting of restricted stock units.

	/s/ Aaron Chan, Attorney-in-Fact	05/05/2026
	** 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)

FAQ

What did BridgeBio Oncology (BBOT) CEO Pedro Beltran report in this Form 4?

Pedro Beltran reported a tax-withholding disposition of 1,047 shares of BridgeBio Oncology Common Stock. The company withheld these shares at $9.03 each to satisfy tax obligations arising from the vesting of previously granted restricted stock units.

How many BridgeBio Oncology (BBOT) shares were withheld for taxes in this transaction?

A total of 1,047 Common Stock shares were withheld to cover tax liabilities. The withholding occurred in connection with the vesting of restricted stock units, which is a standard mechanism for handling taxes on equity compensation awards.

Was the BridgeBio Oncology (BBOT) CEO’s Form 4 transaction an open-market sale?

No, the transaction was a tax-withholding disposition, not an open-market sale. Shares were retained by the issuer to satisfy Beltran’s tax obligations from vesting restricted stock units, rather than being sold on a stock exchange to outside buyers.

How many BridgeBio Oncology (BBOT) shares does Pedro Beltran hold after this transaction?

Following the tax-withholding event, Pedro Beltran directly holds 45,623 shares of BridgeBio Oncology Common Stock. This figure reflects his remaining direct ownership after 1,047 shares were withheld by the issuer to satisfy his equity-related tax obligations.

What does the F transaction code mean in the BridgeBio Oncology (BBOT) Form 4?

The F transaction code indicates a tax-withholding disposition, where shares are delivered to the issuer to cover taxes. In this case, BridgeBio Oncology withheld 1,047 shares from CEO Pedro Beltran when restricted stock units vested and generated a tax liability.

How is this BridgeBio Oncology (BBOT) Form 4 transaction related to restricted stock units?

The filing notes the withheld shares came from restricted stock units vesting. When RSUs convert into shares, they create taxable income; the issuer often withholds part of the shares, as BridgeBio Oncology did here, to pay the associated tax obligation on Beltran’s behalf.