Avantor, Inc. — Director's Dealing 2025

Nov 12, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Avantor, Inc. (AVTR)
CIK: 0001722482
Period of Report: 2025-11-10

Reporting Person: Blenn Mary (EVP, Chief Operating Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-11-10	Common Stock	A	17391	—	Acquired	17391	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-11-10	Stock Options (Right to Buy)	$11.50	A	47058	Acquired	2035-11-10	Common Stock (47058)	Direct

Footnotes

F1: Reflects a grant of restricted stock units that vest in two equal annual installments beginning on November 10, 2026.

F2: Reflects a grant of stock options that vest in two equal annual installments beginning on November 10, 2026.