Avantor, Inc. (NYSE:AVTR) has 404 institutional investors with active 13F positions as of December 2025.
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| DODGE & COX | 31 Mar, 2026 | 119,648,329 | 2,583,186 | 2.21% | $938,042,899.00 |
| DODGE & COX | 31 Mar, 2026 | 117,065,143 | -681,745 | -0.58% | $1,341,566,539.00 |
| BlackRock, Inc. | 31 Mar, 2026 | 65,703,554 | 6,106,628 | 10.25% | $515,115,868.00 |
| VANGUARD GROUP INC | 31 Mar, 2026 | 64,904,889 | -1,084,088 | -1.64% | $743,810,028.00 |
| BlackRock, Inc. | 31 Mar, 2026 | 59,596,926 | -1,120,061 | -1.84% | $682,980,769.00 |
| T. Rowe Price Investment Management, Inc. | 31 Mar, 2026 | 53,370,757 | 20,443,062 | 62.08% | $611,629.00 |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | 31 Mar, 2026 | 33,287,174 | -1,260,955 | -3.65% | $381,471,014.00 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 31 Mar, 2026 | 31,275,847 | 31,275,847 | 0.00% | $245,202,640.00 |
| VANGUARD CAPITAL MANAGEMENT LLC | 31 Mar, 2026 | 30,606,112 | 30,606,112 | 0.00% | $239,951,918.00 |
| WELLINGTON MANAGEMENT GROUP LLP | 31 Mar, 2026 | 24,224,156 | 787,520 | 3.36% | $189,917,384.00 |
| WELLINGTON MANAGEMENT GROUP LLP | 31 Mar, 2026 | 23,436,636 | 23,436,636 | 0.00% | $268,583,848.00 |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | 31 Mar, 2026 | 22,358,399 | -10,928,775 | -32.83% | $175,289,848.00 |
| State Street Corp | 31 Mar, 2026 | 20,721,079 | 511,673 | 2.53% | $162,453,259.00 |
| GREENHAVEN ASSOCIATES INC | 31 Mar, 2026 | 20,500,653 | 2,189,083 | 11.95% | $234,937,483.00 |
| State Street Corp | 31 Mar, 2026 | 20,209,406 | -156,364 | -0.77% | $231,599,793.00 |
| Engine Capital Management, LP | 31 Mar, 2026 | 19,780,830 | 7,853,018 | 65.84% | $155,081,707.00 |
| Morgan Stanley | 31 Mar, 2026 | 17,468,418 | 11,216,565 | 179.41% | $200,188,089.00 |
| Invesco Ltd. | 31 Mar, 2026 | 17,178,716 | 1,125,348 | 7.01% | $196,868,086.00 |
| DIMENSIONAL FUND ADVISORS LP | 31 Mar, 2026 | 16,894,649 | 2,288,053 | 15.66% | $132,443,131.00 |
| Clarkston Capital Partners, LLC | 31 Mar, 2026 | 15,105,065 | 84,740 | 0.56% | $173,104,045.00 |