Kyntra Bio CEO has 209 shares withheld for taxes

KYNTRA BIO, INC.’s CEO had shares withheld to cover taxes on RSU vesting, leaving 26,796 direct and 40 indirectly held shares.

Rhea-AI Filing Summary

KYNTRA BIO, INC. (KYNB) reported that CEO and director Thane Wettig26,796 shares directly and 40 shares indirectly through his spouse. No transactions were reported under a Rule 10b5-1 trading plan.

Insider Trade Summary

Tax Withholding: 209 shares

Tax Withholding 2 txns

Insider Wettig Thane

Role CEO

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1	209	$8.55	$2K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 26,796 shares (Direct); Common Stock — 40 shares (Indirect, By spouse)

Footnotes (1)

1. F1. Represents shares withheld by the issuer to satisfy a tax obligation realized by the reporting person upon the vesting of restricted stock units

Key Figures

Shares withheld for tax obligation: 209 shares Withholding reference price: $8.55 per share Direct holdings after transaction: 26,796 shares +2 more

5 metrics

Shares withheld for tax obligation 209 shares Common stock withheld on September 6, 2026 upon RSU vesting

Withholding reference price $8.55 per share Value used for 209 withheld shares in tax-liability transaction

Direct holdings after transaction 26,796 shares Common stock directly owned by CEO after September 6, 2026 event

Indirect holdings after transaction 40 shares Common stock held indirectly by spouse after the reported event

Rule 10b5-1 plan status No plan reported Document-level 10b5-1 checkbox not affirmed for this Form 4

Key Terms

restricted stock units, withheld by the issuer, indirect

3 terms

restricted stock units financial

"tax obligation realized by the reporting person upon 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.

withheld by the issuer financial

"Represents shares withheld by the issuer to satisfy a tax obligation"

indirect financial

"ownership type for 40 shares reported as indirectly held by spouse"

FAQ

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

What did KYNB CEO Thane Wettig report in this Form 4?

He reported that 209 shares of KYNTRA BIO, INC. common stock were withheld on September 6, 2026 to satisfy a tax obligation arising from the vesting of restricted stock units, with no open-market purchase or sale reported.

How many KYNB shares does the CEO hold after this transaction?

After the tax-withholding transaction, Thane Wettig holds 26,796 KYNTRA BIO, INC. common shares directly and 40 shares indirectly through his spouse, as reported in the Form 4 holdings entries.

Was the KYNB CEO’s Form 4 transaction an open-market sale or purchase?

No. The Form 4 describes the event as shares withheld to satisfy a tax obligation upon vesting of restricted stock units, rather than an open-market sale or purchase of KYNTRA BIO, INC. common stock.

Did KYNB’s CEO use a Rule 10b5-1 trading plan for this transaction?

The filing indicates the Rule 10b5-1 checkbox is not affirmatively checked, and the footnote describes tax withholding on RSU vesting, so no Rule 10b5-1 trading plan is reported for this event.

What indirect ownership in KYNB stock does the CEO report?

The Form 4 includes an indirect holding entry showing 40 shares of KYNTRA BIO, INC. common stock held by spouse, in addition to his directly held shares.

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

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Available on EDGAR 09/09/2026 - 08:42 PM Accepted by SEC EDGAR 09/09/2026 - 08:42 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^*

Wettig Thane

(Last) (First) (Middle)

C/O KYNTRA BIO, INC.

350 BAY STREET, SUITE 100, #6009

(Street)

SAN FRANCISCO CALIFORNIA 94133

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
KYNTRA BIO, INC. [ KYNB ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/06/2026

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	09/06/2026		F		209(1)	D	$8.55	26,796	D
Common Stock								40	I	By spouse

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 shares withheld by the issuer to satisfy a tax obligation realized by the reporting person upon the vesting of restricted stock units

	/s/ John Alden, Attorney-in-Fact	09/09/2026
	** 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)