Schedule 13G/A

AVTR Schedule 13G/A filing by T. Rowe Price Investment Management

T. Rowe Price Investment Management reported beneficial ownership of 69.7M shares, representing 10.3% of AVANTOR INC in this filing.

FiledJul 10, 2024

Ownership dateJun 30, 2024

Reported shares69.7M

Reported ownership10.3%

Ownership details

Voting and dispositive power reported in the filing

These figures describe the reporting filer’s disclosed voting and investment authority. They should be read together with the reported share count and percentage.

Sole voting power 66.9M

Shared voting power 0

Sole dispositive power 69.7M

Shared dispositive power 0

Price context

Price dates alongside the ownership filing

Price data provides market context around the disclosure. It does not identify the filer’s actual transaction price.

Close near filing date—

Latest tracked price$13.68as of Aug 4, 2026

Source

Original filing and accession

Use the SEC filing as the primary source when you need the complete disclosure, footnotes, exhibits, or reporting-person details.

Reporting filer: T. Rowe Price Investment Management
CIK: CIK0001897612
Accession: 0001897612-24-001374
Form: Schedule 13G/A

Open SEC filing View AVTR ownership history

Read the filing in context

Understand what a Schedule 13 filing does—and does not—tell you.

How to read a Schedule 13G → Does a 13G mean the shares were just bought? → Filing date vs. ownership date →