Avantor
Supplies laboratory and bioproduction workflows from research through production.
$14.58
After-hours close−0.01 (−0.03%)
At close$14.59(−0.17%)
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Breakdown13F · Form 4
Institutions 105.24%Insiders 1.01%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 676.36M · Float 657.88M · 97.3% free float
Institutions13F, as of Jun 30, 2026
469 holders · 711.80M shares · 102 new positions · 291 increased · 108 reduced · 72 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Dodge & Cox | 120.02M | 17.75% | +372.6K | Aug 13, 2026 |
| BlackRock, Inc. | 70.28M | 10.39% | +4.58M | Aug 7, 2026 |
| Vanguard Portfolio Management LLC | 31.34M | 4.63% | +67.4K | Aug 13, 2026 |
| Vanguard Capital Management LLC | 30.80M | 4.55% | +196.7K | Aug 13, 2026 |
| Greenhaven Associates Inc | 24.64M | 3.64% | +2.04M | Jul 28, 2026 |
| State Street Corp | 21.57M | 3.19% | +851.9K | Aug 7, 2026 |
| Dimensional Fund Advisors LP | 20.41M | 3.02% | +3.52M | Aug 11, 2026 |
| Engine Capital Management, LP | 19.86M | 2.94% | +80.0K | Aug 14, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Dodge & Cox | 17.20% | 117.43M | 13G | Aug 13, 2025 ↗ |
| BlackRock, Inc. | 8.70% | 59.05M | 13G | Oct 17, 2025 ↗ |
| Vanguard Capital Management | 5.29% | 35.80M | 13G | Apr 29, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Michael Stubblefield | director, officer: President & CEO | 1.76M | 0.26% | May 21, 2025 |
| Emmanuel Ligner | director, officer: President and CEO | 737.3K | 0.11% | Aug 20, 2026 |
| Sanjeev K. Mehra | director | 508.4K | 0.08% | May 11, 2026 |
| Gregory L. Summe | director | 483.4K | 0.07% | May 11, 2026 |
| R. Brent Jones | officer: EVP, Chief Financial Officer | 419.8K | 0.06% | Feb 25, 2026 |
| Corey Walker | officer: President, VWR Dist. & Servs. | 384.5K | 0.06% | Jun 22, 2026 |
| Benoit Gourdier | officer: EVP, Bioscience & Medtech | 362.9K | 0.05% | Feb 25, 2026 |
| Mary Blenn | officer: EVP, Chief Operating Officer | 253.4K | 0.04% | Feb 23, 2026 |
| Claudius Sokenu | officer: EVP, Chief Legal & Compliance | 251.2K | 0.04% | Jul 27, 2026 |
| Brittany Hankamer | officer: EVP, Chief HR Officer | 248.9K | 0.04% | Aug 18, 2026 |
2 ten-percent owners hold 100.62M shares by Form 4, outside the officers-and-directors figure above · 38 people have not refiled in the last 18 months (76.16M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| May 8, 2026 | Gregory T. Lucierdirector | Purchase | 10,000 | $8.32 | 60,000 |
| May 1, 2026 | Simon Dingemansdirector | Purchase | 25,000 | $8.14 | 25,000 |
| Mar 10, 2026 | Sanjeev K. Mehradirector | Purchase | 125,000 | $8.01 | 475,000 |
| Feb 19, 2026 | Gregory T. Lucierdirector | Purchase | 50,000 | $9.16 | 50,000 |
| Feb 12, 2026 | Gregory L. Summedirector | Purchase | 100,000 | $9.40 | 400,000 |
| Dec 5, 2025 | Sanjeev K. Mehradirector | Purchase | 350,000 | $11.09 | 350,000 |
| Nov 17, 2025 | Emmanuel Lignerdirector, officer: President and CEO | Purchase | 87,500 | $11.35 | 283,424 |
| Oct 30, 2025 | Gregory L. Summedirector | Purchase | 100,000 | $11.25 | 300,000 |
CongressHouse and Senate disclosures
Not reported.