SANJEEV K. MEHRA - 05 Dec 2025 Form 4 Insider Report for Avantor, Inc. (AVTR)

Role: Director
Signature: /s/ Scott Baker, as Attorney-in-Fact
Issuer symbol: AVTR
Transactions as of: 05 Dec 2025
Transactions value $: $3,881,500
Form type: 4
Filing time: 09 Dec 2025, 17:11:24 UTC
Previous filing: 03 Jan 2023
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
MEHRA SANJEEV K	Director	RADNOR CORPORATE CENTER, BUILDING ONE,, SUITE 200, 100 MATSONFORD ROAD, RADNOR	/s/ Scott Baker, as Attorney-in-Fact	09 Dec 2025	0001029623

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AVTR	Common Stock	Award	$0	+8.11K		$0.00	8.11K	05 Dec 2025	Direct	F1
transaction	AVTR	Common Stock	Purchase	$3.88M	+350K		$11.09	350K	05 Dec 2025	By limited liability company	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Reflects a grant of restricted stock units that vests on May 6, 2026.
F2	The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $10.98 to $11.21, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each price within the range set forth above.
F3	The Reporting Person disclaims beneficial ownership of the securities reported herein as indirectly beneficially owned, except to the extent of any pecuniary interest therein.