Avantor, Inc. — Director's Dealing 2021

May 28, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Avantor, Inc. (AVTR)
CIK: 0001722482
Period of Report: 2021-05-26

Reporting Person: GUPTA RAJIV (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-26	Common Stock	S	150000	$31.89	Disposed	356218	Indirect
2021-05-27	Common Stock	S	78109	$31.94	Disposed	278109	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1447952	Direct

Footnotes

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $31.80 to $31.97, 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 sold at each price within the range set forth above.

F2: Reflects securities held by trusts for the benefit of the Reporting Person's family, of which the spouse of the Reporting Person is trustee. Reporting Person disclaims beneficial ownership of the securities held by the trusts, except to the extent of his pecuniary interest therein.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $31.92 to $31.97, 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 sold at each price within the range set forth above.