Avantor Inc (AVTR)
Who owns Avantor Inc (AVTR)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 97.3% of the shares are freely tradable; institutional investors hold 101.6%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Dodge & Cox | 17.69 | 119,648,329 | +2.2 | 03/31/2026 |
| BlackRock Inc | 9.71 | 65,703,554 | +10.2 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 4.62 | 31,275,847 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.53 | 30,606,112 | +0.0 | 03/31/2026 |
| Greenhaven Associates Inc | 3.64 | 24,637,310 | +9.0 | 06/30/2026 |
| Wellington Management Company LLP | 3.58 | 24,224,156 | +3.4 | 03/31/2026 |
| Barrow Hanley Mewhinney & Strauss LLC | 3.31 | 22,358,399 | -32.8 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Dodge & Cox Stock I | 11.07 | 74,871,715 | +0.0 | 06/30/2026 |
| iShares Core S&P Mid-Cap ETF | 3.47 | 23,450,125 | +0.0 | 07/30/2026 |
| Vanguard Morn Total Stk Mkt Idx Investor | 3.21 | 21,681,946 | -0.3 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 24. Jul 2026 | Sokenu Claudius | EVP, Chief Legal & Compliance | Other | 1,201 | 11.44 | 13,739 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character.
View all insider transactions →Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.