🕵️ Avantor, Inc. ($AVTR)
SEC insider & ownership activity, last 12 months · CIK 1722482 · every row links its SEC filing
Over the last 12 months insiders sold $40K against $9.9M of open-market buying. Sanjeev K. Mehra bought $4.9M in discretionary trades (Dec–Mar). Dodge & COX added 14.6% → 17.2%. No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
5 buyers, $9.9M (9 lots) · 1 seller, $40K (1 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Sanjeev K. Mehra | 2 | $4.9M | 0 | – | Mar 10, 2026 |
| Gregory L. Summe | 3 | $3.3M | 0 | – | Feb 12, 2026 |
| Ligner Emmanuel | 1 | $993K | 0 | – | Nov 17, 2025 |
| Gregory T. Lucier | 2 | $541K | 0 | – | May 8, 2026 |
| Dingemans Simon | 1 | $204K | 0 | – | May 1, 2026 |
| Steven W. Eck | 0 | – | 1 | $40K | Aug 5, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Dodge & COX | 17.2% | 13G | Aug 13, 2025 | filing ↗ | |
| Blackrock, Inc. | 8.7% | 13G | Oct 17, 2025 | filing ↗ | |
| Vanguard Capital Management | 5.3% | 13G | Apr 29, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Steven W. Eck | $40K | Aug 5, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Jul 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 29, 2026 | filing ↗ |
| Material agreement (1.01) | Jul 14, 2026 | filing ↗ |
| New financial obligation (2.03) | Jul 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 14, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Earnings (2.02) | Apr 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 29, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 17, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 17, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 17, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 26, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 26, 2026 | filing ↗ |
| Earnings (2.02) | Feb 11, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 11, 2026 | filing ↗ |
| Officer/director changes (5.02) | Dec 17, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 17, 2025 | filing ↗ |
| Officer/director changes (5.02) | Dec 17, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Dec 17, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 17, 2025 | filing ↗ |
| Officer/director changes (5.02) | Dec 4, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Dec 4, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 4, 2025 | filing ↗ |
| Officer/director changes (5.02) | Dec 4, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 4, 2025 | filing ↗ |
| Earnings (2.02) | Oct 29, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 29, 2025 | filing ↗ |