501 institutions reported holding $5.38B of AVANTOR INC (AVTR) in SEC 13F filings for 2026-03-31. Largest institutional holders: Dodge & Cox ($938.0M), BlackRock, Inc. ($515.1M), VANGUARD PORTFOLIO MANAGEMENT LLC ($245.2M), VANGUARD CAPITAL MANAGEMENT LLC ($240.0M), WELLINGTON MANAGEMENT GROUP LLP ($189.9M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Dodge & Cox | $938.0M | 119.6M | Added |
| 2 | BlackRock, Inc. | $515.1M | 65.7M | Added |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $245.2M | 31.3M | New |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $240.0M | 30.6M | New |
| 5 | WELLINGTON MANAGEMENT GROUP LLP | $189.9M | 24.2M | Added |
| 6 | GREENHAVEN ASSOCIATES INC | $177.1M | 22.6M | Added |
| 7 | BARROW HANLEY MEWHINNEY & STRAUSS LLC | $175.3M | 22.4M | Trimmed |
| 8 | STATE STREET CORP | $162.5M | 20.7M | Added |
| 9 | Engine Capital Management, LP | $155.1M | 19.8M | Added |
| 10 | DIMENSIONAL FUND ADVISORS LP | $132.4M | 16.9M | Added |
| 11 | T. Rowe Price Investment Management, Inc. | $115.9M | 14.8M | Trimmed |
| 12 | New Mountain Capital, L.L.C. | $109.8M | 14.0M | Hold |
| 13 | JANE STREET GROUP, LLC | $108.4M | 13.8M | Added |
| 14 | D. E. Shaw & Co., Inc. | $102.8M | 13.1M | Added |
| 15 | GEODE CAPITAL MANAGEMENT, LLC | $101.1M | 12.9M | Added |
| 16 | LONDON CO OF VIRGINIA | $85.1M | 10.9M | Trimmed |
| 17 | FULLER & THALER ASSET MANAGEMENT, INC. | $83.4M | 10.6M | Added |
| 18 | Clarkston Capital Partners, LLC | $67.7M | 8.6M | Trimmed |
| 19 | First Pacific Advisors, LP | $63.4M | 8.1M | Added |
| 20 | Invesco Ltd. | $63.3M | 8.1M | Trimmed |
| 21 | FMR LLC | $59.7M | 7.6M | Trimmed |
| 22 | BANK OF AMERICA CORP /DE/ | $55.4M | 7.1M | Added |
| 23 | MORGAN STANLEY | $47.8M | 6.1M | Trimmed |
| 24 | EARNEST PARTNERS LLC | $47.2M | 6.0M | Trimmed |
| 25 | NORTHERN TRUST CORP | $42.8M | 5.5M | Added |
Source: SEC Form 13F filings · as of 2026-03-31