Avantor, Inc
Held by 14 tracked managers as of Q2 2026 · CUSIP ⓘCUSIP: A 9-character ID for one specific security - one share class of one company, or one bond. Tickers can change and can mean different things in different countries; a CUSIP always identifies exactly the same security, which is why filings use it. Guide 05352A100 · Sector ⓘGICS sectors: The 11-sector system most investors know (Global Industry Classification Standard): Technology, Health Care, Financials and so on. This site assigns each company a GICS-style sector from its SIC code, with a few hand corrections, so sector pages match the names investors expect. Guide
Educational and informational only, not personalized investment advice. Based on public filings that may be delayed or contain errors; verify with the original filings. Disclaimer
Tracked capital in this stock
Total value held (area) and number of managers (line). Dips can mean a large holder filed that quarter confidentially (e.g. Norges Bank in Q1/Q3).
Aggregate buying and selling
Net share change reported each quarter
Who owns AVTR?
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Who owns AVTR? — Q2 2026
Holders ranked by position size, with each one's quarter-over-quarter change.
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| # | Manager | Fund | Shares | Value ↑ | % of their portfolio | QoQ | Δ shares | Δ shares % | Est. Δ value ⓘChange in shares × this quarter's price |
|---|---|---|---|---|---|---|---|---|---|
| 14 | Jeremy Grantham | GMO | 106.70K | $1.06M | 0.0% | Held | 0 | 0.0% | $0 |
| 13 | Ray Dalio | Bridgewater Associates | 301.22K | $2.98M | 0.0% | Added | +173.0K | +134.9% | +$1.71M |
| 12 | Ken Griffin | Citadel Advisors | 399.15K | $3.95M | 0.0% | Reduced | -170.4K | -29.9% | -$1.69M |
| 11 | Israel Englander | Millennium Management | 753.58K | $7.46M | 0.0% | Reduced | -1.7M | -69.1% | -$16.65M |
| 10 | Diamond Hill | Diamond Hill Capital Management | 1.05M | $10.36M | 0.1% | Reduced | -720.6K | -40.8% | -$7.13M |
| 9 | Chuck Royce | Royce & Associates | 3.68M | $36.39M | 0.3% | Added | +2.2M | +151.2% | +$21.90M |
| 8 | Mason Hawkins | Southeastern Asset Management (Longleaf) | 4.73M | $46.78M | 2.4% | Added | +1.2M | +34.2% | +$11.93M |
| 7 | Donald Yacktman | Yacktman Asset Management | 4.77M | $47.22M | 0.6% | Added | +25.0K | +0.5% | +$247.50K |
| 6 | Norges Bank | Norges Bank Investment Management | 6.09M | $60.31M | 0.0% | — | — | — | — |
| 5 | First Pacific Advisors | First Pacific Advisors, LP | 8.19M | $81.09M | 1.0% | Added | +101.7K | +1.3% | +$1.01M |
| 4 | David Shaw | D.E. Shaw & Co. | 9.57M | $94.76M | 0.1% | Reduced | -3.5M | -27.0% | -$35.04M |
| 3 | Barrow Hanley | Barrow Hanley Mewhinney & Strauss | 19.74M | $195.39M | 0.6% | Reduced | -2.6M | -11.7% | -$25.96M |
| 2 | Edgar Wachenheim | Greenhaven Associates | 24.64M | $243.91M | 2.8% | Added | +2.0M | +9.0% | +$20.23M |
| 1 | Dodge & Cox | Dodge & Cox | 120.02M | $1.19B | 0.6% | Added | +372.6K | +0.3% | +$3.69M |
Column filters
No tracked manager sold out of this stock this quarter.
Politician trades
Column filters
No politician trades match these filters.