Tax withholding trims Avantor (AVTR) EVP Claudius Sokenu shares

Rhea-AI Filing Summary

Avantor, Inc. executive Claudius Sokenu reported a small share disposition tied to equity compensation taxes. On February 23, 2026, 2,376 shares of common stock at $8.89 per share were withheld by Avantor to cover tax obligations from RSU vesting, leaving him with 252,429 shares directly held.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Sokenu Claudius

Role EVP, Chief Legal & Compliance

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	2,376	$8.89	$21K

Holdings After Transaction: Common Stock — 252,429 shares (Direct)

Footnotes (1)

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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^*

Sokenu Claudius

(Last) (First) (Middle)

RADNOR CORPORATE CENTER, BUILDING ONE,

SUITE 200, 100 MATSONFORD ROAD

(Street)

RADNOR PA 19087

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Avantor, Inc. [ AVTR ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Chief Legal & Compliance

3. Date of Earliest Transaction (Month/Day/Year)
02/23/2026

4. 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 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	02/23/2026		F(1)		2,376	D	$8.89	252,429	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 withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs.

Remarks:

	/s/ Scott Baker, by power of attorney for Claudius Sokenu	02/25/2026
	** 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.

FAQ

What insider transaction did Avantor (AVTR) report for Claudius Sokenu?

Avantor reported a tax-related share disposition for Claudius Sokenu. On February 23, 2026, 2,376 common shares were withheld by the company at $8.89 per share to satisfy tax obligations arising from restricted stock unit vesting.

Was the Avantor (AVTR) Form 4 transaction an open-market sale?

No, the transaction was not an open-market sale. The 2,376 Avantor shares were withheld by the company to cover Claudius Sokenu’s tax withholding obligations in connection with restricted stock units vesting, rather than being sold at his discretion in the market.

How many Avantor (AVTR) shares does Claudius Sokenu hold after this filing?

After the tax-withholding disposition, Claudius Sokenu directly holds 252,429 Avantor common shares. This figure reflects his remaining ownership following the withholding of 2,376 shares by the company related to the vesting of restricted stock units.

What does transaction code F mean in the Avantor (AVTR) Form 4?

Transaction code F indicates shares were used to pay an exercise price or tax liability. In this Avantor filing, 2,376 shares were withheld to satisfy Claudius Sokenu’s tax obligations tied to vesting restricted stock units, rather than representing a discretionary stock sale.

What role does Claudius Sokenu hold at Avantor (AVTR)?

Claudius Sokenu serves as Executive Vice President, Chief Legal & Compliance at Avantor. The Form 4 reflects a tax-withholding share disposition connected to his equity compensation, not a direct open-market purchase or sale of Avantor common stock.