Who owns Avantor, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of AVTR from SEC Form 13F filings across 455 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 455 institutions disclosed 698.9M shares of Avantor, Inc. worth $6.93B — about 103.4% of shares outstanding; the largest disclosed holder is Dodge & Cox. Source: SEC Form 13F filings, parsed by EvidInvest.
455
13F holders
$6.93B
value, 2026 filers
103.4%
of shares outstanding (698.9M sh)
104
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of AVTR's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Dodge & Cox | 120.0M | $1.19B | 0.6% | 17.7% | +0.3% |
| 2 | BlackRock, Inc. | 70.3M | $695.8M | 0.0% | 10.4% | +7.0% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 31.3M | $310.3M | 0.0% | 4.6% | +0.2% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 30.8M | $304.9M | 0.0% | 4.6% | +0.6% |
| 5 | GREENHAVEN ASSOCIATES INC | 24.6M | $243.9M | 2.8% | 3.6% | +9.0% |
| 6 | STATE STREET CORP | 21.6M | $213.6M | 0.0% | 3.2% | +4.1% |
| 7 | DIMENSIONAL FUND ADVISORS LP | 20.4M | $202.1M | 0.0% | 3% | +20.8% |
| 8 | Engine Capital Management, LP | 19.9M | $196.6M | 19.1% | 2.9% | +0.4% |
| 9 | BARROW HANLEY MEWHINNEY & STRAUSS LLC | 19.7M | $195.4M | 0.6% | 2.9% | -11.7% |
| 10 | New Mountain Capital, L.L.C. | 14.0M | $138.6M | 100.0% | 2.1% | 0.0% |
| 11 | Invesco Ltd. | 13.9M | $137.5M | 0.0% | 2.1% | +72.0% |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | 13.2M | $130.5M | 0.0% | 1.9% | +2.2% |
| 13 | MARSHALL WACE, LLP | 13.1M | $130.0M | 0.1% | 1.9% | +281.9% |
| 14 | AQR CAPITAL MANAGEMENT LLC | 11.6M | $115.1M | 0.0% | 1.7% | +138.9% |
| 15 | BANK OF AMERICA CORP /DE/ | 11.0M | $108.8M | 0.0% | 1.6% | +55.5% |
| 16 | EARNEST PARTNERS LLC | 10.7M | $106.4M | 0.4% | 1.6% | +78.4% |
| 17 | LONDON CO OF VIRGINIA | 10.5M | $103.8M | 0.6% | 1.6% | -3.4% |
| 18 | FULLER & THALER ASSET MANAGEMENT, INC. | 10.3M | $101.5M | 0.3% | 1.5% | -3.5% |
| 19 | D. E. Shaw & Co., Inc. | 9.6M | $94.8M | 0.0% | 1.4% | -27.0% |
| 20 | First Pacific Advisors, LP | 8.2M | $81.1M | 1.0% | 1.2% | +1.3% |
| 21 | SEI INVESTMENTS CO | 7.9M | $78.7M | 0.1% | 1.2% | +50.3% |
| 22 | FMR LLC | 7.8M | $77.7M | 0.0% | 1.2% | +3.1% |
| 23 | GENDELL JEFFREY L | 7.6M | $75.3M | 0.7% | 1.1% | +54.7% |
| 24 | VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.NEW | 7.4M | $73.2M | 0.6% | 1.1% | new |
| 25 | Clarkston Capital Partners, LLC | 6.8M | $67.2M | 5.7% | 1% | -21.3% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.