Avantor, Inc.
AVTR- Exchange
- NYSE
- Industry
- Laboratory Analytical Instruments
- SEC CIK
- 0001722482
No open-market purchases or sales by Avantor, Inc. insiders were filed in the last 90 days; 460 institutions reported holding it in 13F filings for Q2 2026, worth $6.93B in total; superinvestors Greenhaven Associates and Southeastern Asset Management (Longleaf) hold it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Avantor, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Avantor, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Garner Todd W | EVP and CFO | 49,688 | Sep 23, 2026 | 1 |
| Ligner Emmanuel | President and CEO | 737,334 | Aug 20, 2026 | 3 |
| Hankamer Brittany | EVP, Chief HR Officer | 248,864 | Aug 18, 2026 | 3 |
| Eck Steven W | SVP & Chief Accounting Officer | 129,593 | Aug 4, 2026 | 4 |
| Sokenu Claudius | EVP, Chief Legal & Compliance | 251,228 | Jul 27, 2026 | 3 |
| Walker Corey | President, VWR Dist. & Servs. | 384,535 | Jun 22, 2026 | 2 |
| Mehra Sanjeev K | Director | 33,376 | May 11, 2026 | 3 |
| Summe Gregory L | Director | 83,381 | May 11, 2026 | 3 |
| Lucier Gregory T | Director | 60,000Indirect | May 11, 2026 | 3 |
| Massaro Joseph R | Director | 77,408 | May 11, 2026 | 1 |
| Severino Michael | Director | 85,821 | May 11, 2026 | 1 |
| Murthy Mala | Director | 69,479 | May 11, 2026 | 1 |
| Makin Louise | Director | 47,140 | May 11, 2026 | 1 |
| Dingemans Simon | Director | 31,495 | May 11, 2026 | 3 |
| Brellier Ludovic | EVP, Bioscience & Medtech | 146,566 | May 5, 2026 | 1 |
| Jones R. Brent | EVP, Chief Financial Officer | 419,782 | Feb 25, 2026 | 2 |
| Gourdier Benoit | EVP, Bioscience & Medtech | 362,859 | Feb 25, 2026 | 3 |
| Blenn Mary | EVP, Chief Operating Officer | 253,384 | Feb 23, 2026 | 2 |
| Couturier Christophe | EVP, AMEA | 211,271 | Aug 12, 2025 | 0 |
| Stubblefield Michael | President & CEO | 545,500Indirect | May 21, 2025 | 0 |
| Peacock Jonathan M | Director | 219,815 | May 12, 2025 | 0 |
| Andres Juan | Director | 65,480 | May 12, 2025 | 0 |
| Kang Lan | Director | 52,315 | May 12, 2025 | 0 |
| Carethers John | Director | 45,858 | May 12, 2025 | 0 |
| Bramwell James | EVP Sales, Customer Excellence | 86,605 | Feb 28, 2025 | 0 |
| Sahin Kitty | EVP, Strategy&Corp Development | 42,274 | Jul 22, 2024 | 0 |
| Stone Randy Lee | EVP, Laboratory Solutions | 68,105 | Apr 18, 2024 | 0 |
| Lewis Sheri | EVP, Global Ops & Supply Chain | 70,692 | Jan 3, 2024 | 0 |
| Vanderhaegen Frederic | EVP, Americas and Europe | 160,735 | Aug 28, 2023 | 0 |
| Szlosek Thomas A | EVP & CFO | 77,489 | May 19, 2023 | 0 |
| Brophy Gerard | EVP, Biopharma Production | 89,032 | May 19, 2023 | 0 |
| Miller Justin | EVP & General Counsel | 93,336 | May 19, 2023 | 0 |
| Shaw Christi | Director | 36,271 | May 15, 2023 | 0 |
| Henson Meghan | EVP, Chief HR Officer | 40,184 | Feb 27, 2023 | 0 |
| Wondrasch Michael | EVP & CIO | 96,072 | Feb 22, 2023 | 0 |
| Holt Matthew S. | Director | 7,908 | May 16, 2022 | 0 |
| Gupta Rajiv | Director | 780,562 | Apr 5, 2022 | 0 |
| Murray Mark Christopher | EVP, Biomaterials & AT | 18,680 | Jan 18, 2022 | 0 |
| Natauri Jo | Director | 557,656Indirect | Aug 13, 2021 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| May 11, 2026 (view filing) | May 8 | 3 days | Lucier Gregory TDirector | PPurchase | +10.0K | $8.32 | +$83.2K | +20.0%60.0K after | |
| May 5, 2026 (view filing) | May 1 | 4 days | Dingemans SimonDirector | PPurchase | +25.0K | $8.14 | +$203.5K | New position25.0K after | |
| Mar 11, 2026 (view filing) | Mar 10 | 1 day | Mehra Sanjeev KDirector | PPurchase | +125.0K | $8.01 | +$1.00M | +35.7%475.0K after | |
| Feb 23, 2026 (view filing) | Feb 19 | 4 days | Lucier Gregory TDirector | PPurchase | +50.0K | $9.16 | +$458.0K | New position50.0K after | |
| Feb 12, 2026 (view filing) | Feb 12 | Same day | Summe Gregory LDirector | PPurchase | +100.0K | $9.40 | +$940.0K | +33.3%400.0K after | |
| Dec 9, 2025 (view filing) | Dec 5 | 4 days | Mehra Sanjeev KDirector | PPurchase | +350.0K | $11.09 | +$3.88M | New position350.0K after | |
| Nov 17, 2025 (view filing) | Nov 17 | Same day | Ligner EmmanuelPresident and CEO | PPurchase | +87.5K | $11.35 | +$993.1K | +44.7%283.4K after | |
| Oct 31, 2025 (view filing) | Oct 30 | 1 day | Summe Gregory LDirector | PPurchase | +100.0K | $11.25 | +$1.13M | +50.0%300.0K after | |
| Aug 22, 2025 (view filing) | Aug 21 | 1 day | Summe Gregory LDirector | PPurchase | +100.0K | $12.56 | +$1.26M | +100.0%200.0K after | |
| Aug 6, 2025 (view filing) | Aug 5 | 1 day | Eck Steven WSVP & Chief Accounting Officer | SSale | −3.48K | $11.39 | −$39.6K | −5.9%55.1K after | 10b5-1 |
| May 27, 2025 (view filing) | May 23 | 4 days | Summe Gregory LDirector | PPurchase | +30.0K | $12.50 | +$375.0K | +42.9%100.0K after | |
| May 22, 2025 (view filing) | May 22 | Same day | Summe Gregory LDirector | PPurchase | +20.0K | $12.65 | +$253.0K | +40.0%70.0K after | |
| May 9, 2025 (view filing) | May 7 | 2 days | Summe Gregory LDirector | PPurchase | +25.0K | $12.00 | +$300.0K | +100.0%50.0K after | |
| Apr 29, 2025 (view filing) | Apr 29 | Same day | Massaro Joseph RDirector | PPurchase | +8.10K | $12.30 | +$99.6K | +30.1%35.0K after | |
| Apr 29, 2025 (view filing) | Apr 28 | 1 day | Summe Gregory LDirector | PPurchase | +25.0K | $12.50 | +$312.5K | New position25.0K after | |
| Apr 29, 2025 (view filing) | Apr 28 | 1 day | Kang LanDirector | PPurchase | +5.00K | $12.57 | +$62.9K | +16.5%35.2K after | |
| Apr 29, 2025 (view filing) | Apr 28 | 1 day | Peacock Jonathan MDirector | PPurchase | +8.09K | $12.81 | +$103.6K | +4.2%202.7K after | |
| Feb 28, 2025 (view filing) | Feb 26-27 | 2 days | Bramwell JamesEVP Sales, Customer Excellence | SSale | −4.53K | $17.44 | −$79.0K | −5.0%86.6K after | 2 lots10b5-1 |
| Feb 28, 2025 (view filing) | Feb 26-27 | 2 days | Eck Steven WSVP & Chief Accounting Officer | SSale | −5.94K | $17.44 | −$103.6K | −13.1%39.6K after | 2 lots10b5-1 |
| Sep 6, 2024 (view filing) | Sep 5 | 1 day | Eck Steven WSVP & Chief Accounting Officer | SSale | −3.52K | $25.06 | −$88.3K | −10.7%29.5K after | |
| Aug 1, 2024 (view filing) | Jul 30-31 | 2 days | Couturier ChristopheEVP, AMEA | SSale | −10.1K | $27.01 | −$272.8K | −12.0%73.9K after | 2 lots10b5-1 |
| Mar 12, 2024 (view filing) | Mar 8 | 4 days | Eck Steven WSVP & Chief Accounting Officer | SSale | −3.69K | $25.63 | −$94.4K | −9.7%34.4K after | 10b5-1 |
| Mar 1, 2024 (view filing) | Feb 29 | 1 day | Bramwell JamesEVP Sales, Customer Excellence | SSale | −4.91K | $24.52 | −$120.4K | −4.9%96.2K after | |
| Mar 1, 2024 (view filing) | Feb 29 | 1 day | Couturier ChristopheEVP, AMEA | SSale | −13.1K | $24.53 | −$320.7K | −13.5%83.9K after | |
| Feb 27, 2024 (view filing) | Feb 27 | Same day | Bramwell JamesEVP Sales, Customer Excellence | SSale | −6.20K | $24.49 | −$151.9K | −5.8%101.1K after | |
| Sep 7, 2023 (view filing) | Sep 7 | Same day | Eck Steven WSVP & Chief Accounting Officer | SSale | −7.58K | $20.64 | −$156.4K | −21.2%28.2K after | |
| Aug 28, 2023 (view filing) | Aug 25 | 3 days | Vanderhaegen FredericEVP, Americas and Europe | SSale | −25.0K | $21.47 | −$536.8K | −13.5%160.7K after | |
| Apr 13, 2023 (view filing) | Apr 11 | 2 days | Couturier ChristopheEVP, AMEA | SSale | −1.50K | $21.18 | −$31.7K | −1.5%98.7K after | 10b5-1 |
| Mar 6, 2023 (view filing) | Mar 3 | 3 days | Brophy GerardEVP, Biopharma Production | SSale | −3.91K | $25.00 | −$97.8K | −3.5%108.7K after | |
| Mar 1, 2023 (view filing) | Feb 27 | 2 days | Brophy GerardEVP, Biopharma Production | SSale | −3.06K | $25.00 | −$76.5K | −2.6%112.6K after | |
| Mar 1, 2023 (view filing) | Feb 28 | 1 day | Couturier ChristopheEVP, AMEA | SSale | −2.32K | $24.32 | −$56.5K | −2.3%100.7K after | |
| Feb 27, 2023 (view filing) | Feb 23 | 4 days | Couturier ChristopheEVP, AMEA | SSale | −3.08K | $24.24 | −$74.6K | −3.2%94.4K after | |
| Feb 22, 2023 (view filing) | Feb 22 | Same day | Couturier ChristopheEVP, AMEA | SSale | −19.2K | $24.12 | −$462.1K | −16.5%97.2K after | |
| Feb 2, 2023 (view filing) | Feb 2 | Same day | Brophy GerardEVP, Biopharma Production | SSale | −11.3K | $25.06 | −$284.2K | −10.0%102.4K after | |
| Nov 17, 2022 (view filing) | Nov 16 | 1 day | Szlosek Thomas AEVP & CFO | PPurchase | +12.5K | $20.71 | +$258.9K | +54.0%35.7K after | |
| Nov 17, 2022 (view filing) | Nov 16 | 1 day | Stubblefield MichaelCEO | PPurchase | +15.0K | $20.95 | +$314.3K | +3.6%429.5K after | |
| May 23, 2022 (view filing) | May 20 | 3 days | Brophy GerardEVP, Biopharma Production | SSale | −19.6K | $31.27 | −$613.0K | −16.8%96.9K after | |
| May 23, 2022 (view filing) | May 23 | Same day | Vanderhaegen FredericEVP, Americas & Europe | SSale | −39.0K | $31.61 | −$1.23M | −23.5%126.8K after | |
| Mar 2, 2022 (view filing) | Mar 1 | 1 day | Brophy GerardEVP, Biopharma Production | SSale | −2.03K | $34.47 | −$69.9K | −1.5%136.2K after | |
| Feb 25, 2022 (view filing) | Feb 23 | 2 days | Brophy GerardEVP, Biopharma Production | SSale | −3.06K | $33.79 | −$103.4K | −2.4%125.2K after | |
| Jan 5, 2022 (view filing) | Jan 3-5 | 2 days | Brophy GerardEVP, Biopharma Production | SSale | −71.0K | $40.42 | −$2.87M | −35.1%131.3K after | 2 lots |
| Dec 28, 2021 (view filing) | Dec 27 | 1 day | Couturier ChristopheEVP, AMEA | SSale | −10.2K | $41.63 | −$424.0K | −8.4%110.5K after | |
| Dec 23, 2021 (view filing) | Dec 21-22 | 2 days | Couturier ChristopheEVP, AMEA | SSale | −66.4K | $41.22 | −$2.74M | −37.5%110.5K after | 2 lots |
| Dec 10, 2021 (view filing) | Dec 8-9 | 2 days | Couturier ChristopheEVP, AMEA | SSale | −13.7K | $40.14 | −$549.4K | −11.0%110.5K after | 2 lots |
| Dec 3, 2021 (view filing) | Dec 1 | 2 days | Gupta RajivDirector | SSale | −100.0K | $39.30 | −$3.93M | −10.2%879.3K after | |
| Nov 15, 2021 (view filing) | Nov 11-12 | 4 days | Vanderhaegen FredericEVP, Europe | SSale | −140.8K | $38.32 | −$5.40M | −47.7%154.5K after | 2 lots |
| Nov 2, 2021 (view filing) | Nov 1 | 1 day | Gupta RajivDirector | SSale | −100.0K | $40.31 | −$4.03M | −9.3%979.3K after | |
| Oct 4, 2021 (view filing) | Oct 1 | 3 days | Gupta RajivDirector | SSale | −100.0K | $39.94 | −$3.99M | −8.5%1.08M after | |
| Sep 22, 2021 (view filing) | Sep 20 | 2 days | Stubblefield MichaelPresident and CEO | SSale | −141.3K | $42.37 | −$5.99M | −10.1%1.26M after | |
| Sep 2, 2021 (view filing) | Sep 1 | 1 day | Gupta RajivDirector | SSale | −100.0K | $39.45 | −$3.94M | −7.8%1.18M after |