Avantor, Inc. (AVTR) · Insider trading
What Avantor's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.
Bought, 12 months
$8.69M
5 insiders, 8 trades
Sold, 12 months
$0
0 insiders
Net, 12 months
+$8.69M
bought less sold
Latest filing
2026-09-23
filings read to 2026-10-19
Who traded, two years
| Insider | Bought | Sold | Trades | Last trade | Holds after |
|---|---|---|---|---|---|
| Mehra Sanjeev KDirector | $4.88M | – | 2 | 2026-03-10 | – |
| Summe Gregory LDirector | $4.56M | – | 7 | 2026-02-12 | – |
| Ligner EmmanuelDirector, President and CEO | $993,125 | – | 1 | 2025-11-17 | 283,424 |
| Lucier Gregory TDirector | $541,200 | – | 2 | 2026-05-08 | – |
| Dingemans SimonDirector | $203,500 | – | 1 | 2026-05-01 | – |
| Eck Steven WSVP & Chief Accounting Officer | – | $143,172 | 3 | 2025-08-05 | 55,068 |
| Peacock Jonathan MDirector | $103,646 | – | 1 | 2025-04-28 | 202,715 |
| Massaro Joseph RDirector | $99,630 | – | 1 | 2025-04-29 | 35,038 |
| Bramwell JamesEVP Sales, Customer Excellence | – | $79,036 | 2 | 2025-02-27 | 86,605 |
| Kang LanDirector | $62,850 | – | 1 | 2025-04-28 | 35,215 |
Open-market purchases and sales
Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.
| Date | Insider | Trade | Shares | Price | Value | Holds after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-05-08 | Lucier Gregory TDirector | Buyindirect | 10,000 | 8.32 | $83,200 | 60,000 | Form 4 |
| 2026-05-01 | Dingemans SimonDirector | Buyindirect | 25,000 | 8.14 | $203,500 | 25,000 | Form 4 |
| 2026-03-10 | Mehra Sanjeev KDirector | Buyindirect | 125,000 | 8.01 | $1.00M | 475,000 | Form 4 |
| 2026-02-19 | Lucier Gregory TDirector | Buyindirect | 50,000 | 9.16 | $458,000 | 50,000 | Form 4 |
| 2026-02-12 | Summe Gregory LDirector | Buyindirect | 100,000 | 9.40 | $940,000 | 400,000 | Form 4 |
| 2025-12-05 | Mehra Sanjeev KDirector | Buyindirect | 350,000 | 11.09 | $3.88M | 350,000 | Form 4 |
| 2025-11-17 | Ligner EmmanuelDirector, President and CEO | Buy | 87,500 | 11.35 | $993,125 | 283,424 | Form 4 |
| 2025-10-30 | Summe Gregory LDirector | Buyindirect | 100,000 | 11.25 | $1.12M | 300,000 | Form 4 |
| 2025-08-21 | Summe Gregory LDirector | Buyindirect | 100,000 | 12.56 | $1.26M | 200,000 | Form 4 |
| 2025-08-05 | Eck Steven WSVP & Chief Accounting Officer | Saleplan | 3,476 | 11.39 | $39,592 | 55,068 | Form 4 |
| 2025-05-23 | Summe Gregory LDirector | Buyindirect | 30,000 | 12.50 | $375,000 | 100,000 | Form 4 |
| 2025-05-22 | Summe Gregory LDirector | Buyindirect | 20,000 | 12.65 | $253,000 | 70,000 | Form 4 |
| 2025-05-07 | Summe Gregory LDirector | Buyindirect | 25,000 | 12.00 | $300,000 | 50,000 | Form 4 |
| 2025-04-29 | Massaro Joseph RDirector | Buy | 8,100 | 12.30 | $99,630 | 35,038 | Form 4 |
| 2025-04-28 | Peacock Jonathan MDirector | Buy | 8,091 | 12.81 | $103,646 | 202,715 | Form 4 |
| 2025-04-28 | Kang LanDirector | Buy | 5,000 | 12.57 | $62,850 | 35,215 | Form 4 |
| 2025-04-28 | Summe Gregory LDirector | Buyindirect | 25,000 | 12.50 | $312,500 | 25,000 | Form 4 |
| 2025-02-27 | Eck Steven WSVP & Chief Accounting Officer | Saleplan | 1,033 | 17.00 | $17,561 | 39,571 | Form 4 |
| 2025-02-27 | Bramwell JamesEVP Sales, Customer Excellence | Saleplan | 774 | 17.00 | $13,158 | 86,605 | Form 4 |
| 2025-02-26 | Eck Steven WSVP & Chief Accounting Officer | Saleplan | 4,907 | 17.53 | $86,020 | 40,604 | Form 4 |
| 2025-02-26 | Bramwell JamesEVP Sales, Customer Excellence | Saleplan | 3,758 | 17.53 | $65,878 | 87,379 | Form 4 |
Grants, exercises and other transactions
Pay, tax and paperwork rather than a choice to trade at the market price. Two years.
50 × grant or award41 × shares withheld for tax2 × gift
Show them
| Date | Insider | What | Shares | Price | Holds after | Filing |
|---|---|---|---|---|---|---|
| 2026-09-21 | Garner Todd WEVP and CFO | Grant or award A | +49,688 | – | 49,688 | Form 4 |
| 2026-08-18 | Ligner EmmanuelDirector, President and CEO | Shares withheld for tax F | −29,803 | 13.33 | 737,334 | Form 4 |
| 2026-08-14 | Hankamer BrittanyEVP, Chief HR Officer | Shares withheld for tax F | −181 | 13.66 | 248,864 | Form 4 |
| 2026-07-31 | Eck Steven WSVP & Chief Accounting Officer | Shares withheld for tax F | −1,385 | 13.78 | 129,593 | Form 4 |
| 2026-07-24 | Sokenu ClaudiusEVP, Chief Legal & Compliance | Shares withheld for tax F | −1,201 | 11.44 | 251,228 | Form 4 |
| 2026-06-21 | Walker CoreyPresident, VWR Dist. & Servs. | Shares withheld for tax F | −3,010 | 9.58 | 384,535 | Form 4 |
| 2026-05-07 | Summe Gregory LDirector | Grant or award A | +25,270 | – | 83,381 | Form 4 |
| 2026-05-07 | Severino MichaelDirector | Grant or award A | +25,270 | – | 85,821 | Form 4 |
| 2026-05-07 | Mehra Sanjeev KDirector | Grant or award A | +25,270 | – | 33,376 | Form 4 |
| 2026-05-07 | Massaro Joseph RDirector | Grant or award A | +25,270 | – | 77,408 | Form 4 |
| 2026-05-07 | Makin LouiseDirector | Grant or award A | +25,270 | – | 47,140 | Form 4 |
| 2026-05-07 | Dingemans SimonDirector | Grant or award A | +25,270 | – | 31,495 | Form 4 |
| 2026-05-07 | Lucier Gregory TDirector | Grant or award A | +25,270 | – | 34,006 | Form 4 |
| 2026-05-07 | Murthy MalaDirector | Grant or award A | +25,270 | – | 69,479 | Form 4 |
| 2026-05-01 | Brellier LudovicEVP, Bioscience & Medtech | Grant or award A | +146,566 | – | 146,566 | Form 4 |
| 2026-04-03 | Eck Steven WSVP & Chief Accounting Officer | Grant or award A | +31,645 | – | 130,978 | Form 4 |
| 2026-02-24 | Eck Steven WSVP & Chief Accounting Officer | Shares withheld for tax F | −452 | 9.11 | 99,333 | Form 4 |
| 2026-02-24 | Hankamer BrittanyEVP, Chief HR Officer | Shares withheld for tax F | −359 | 9.11 | 249,045 | Form 4 |
| 2026-02-23 | Eck Steven WSVP & Chief Accounting Officer | Shares withheld for tax F | −2,017 | 8.89 | 99,785 | Form 4 |
| 2026-02-23 | Gourdier BenoitEVP, Bioscience & Medtech | Shares withheld for tax F | −3,029 | 8.89 | 362,859 | Form 4 |
| 2026-02-23 | Jones R. BrentEVP, Chief Financial Officer | Shares withheld for tax F | −2,805 | 8.89 | 419,782 | Form 4 |
| 2026-02-23 | Hankamer BrittanyEVP, Chief HR Officer | Shares withheld for tax F | −1,324 | 8.89 | 249,404 | Form 4 |
| 2026-02-23 | Sokenu ClaudiusEVP, Chief Legal & Compliance | Shares withheld for tax F | −2,376 | 8.89 | 252,429 | Form 4 |
| 2026-02-20 | Jones R. BrentEVP, Chief Financial Officer | Shares withheld for tax F | −9,506 | 9.03 | 422,587 | Form 4 |
| 2026-02-20 | Gourdier BenoitEVP, Bioscience & Medtech | Shares withheld for tax F | −4,160 | 9.03 | 365,888 | Form 4 |
| 2026-02-20 | Sokenu ClaudiusEVP, Chief Legal & Compliance | Shares withheld for tax F | −2,919 | 9.03 | 254,805 | Form 4 |
| 2026-02-20 | Walker CoreyPresident, VWR Dist. & Servs. | Shares withheld for tax F | −4,963 | 9.03 | 387,545 | Form 4 |
| 2026-02-20 | Eck Steven WSVP & Chief Accounting Officer | Shares withheld for tax F | −2,125 | 9.03 | 101,802 | Form 4 |
| 2026-02-20 | Hankamer BrittanyEVP, Chief HR Officer | Shares withheld for tax F | −1,453 | 9.03 | 250,728 | Form 4 |
| 2026-02-19 | Jones R. BrentEVP, Chief Financial Officer | Grant or award A | +161,237 | – | 432,093 | Form 4 |
| 2026-02-19 | Gourdier BenoitEVP, Bioscience & Medtech | Grant or award A | +134,364 | – | 370,048 | Form 4 |
| 2026-02-19 | Sokenu ClaudiusEVP, Chief Legal & Compliance | Grant or award A | +80,618 | – | 257,724 | Form 4 |
| 2026-02-19 | Walker CoreyPresident, VWR Dist. & Servs. | Grant or award A | +161,237 | – | 392,508 | Form 4 |
| 2026-02-19 | Ligner EmmanuelDirector, President and CEO | Grant or award A | +483,713 | – | 767,137 | Form 4 |
| 2026-02-19 | Eck Steven WSVP & Chief Accounting Officer | Grant or award A | +48,859 | – | 103,927 | Form 4 |
| 2026-02-19 | Blenn MaryEVP, Chief Operating Officer | Grant or award A | +235,993 | – | 253,384 | Form 4 |
| 2026-02-19 | Hankamer BrittanyEVP, Chief HR Officer | Grant or award A | +80,618 | – | 252,181 | Form 4 |
| 2026-01-02 | Dingemans SimonDirector | Grant or award A | +6,225 | – | 6,225 | Form 4 |
| 2025-12-05 | Mehra Sanjeev KDirector | Grant or award A | +8,106 | – | 8,106 | Form 4 |
| 2025-11-10 | Blenn MaryEVP, Chief Operating Officer | Grant or award A | +17,391 | – | 17,391 | Form 4 |
| 2025-10-03 | Lucier Gregory TDirector | Grant or award A | +8,736 | – | 8,736 | Form 4 |
| 2025-10-02 | Gourdier BenoitEVP, Bioscience Production | Shares withheld for tax F | −1,264 | 13.77 | 235,684 | Form 4 |
| 2025-08-18 | Ligner EmmanuelDirector, President and CEO | Grant or award A | +195,924 | – | 195,924 | Form 4 |
| 2025-08-14 | Hankamer BrittanyEVP, Chief HR Officer | Shares withheld for tax F | −181 | 12.98 | 171,563 | Form 4 |
| 2025-08-08 | Couturier ChristopheEVP, AMEA | Grant or award A | +65,217 | – | 211,271 | Form 4 |
| 2025-07-31 | Eck Steven WSVP & Chief Accounting Officer | Shares withheld for tax F | −1,385 | 13.44 | 58,544 | Form 4 |
| 2025-07-24 | Sokenu ClaudiusEVP, Chief Legal & Compliance | Shares withheld for tax F | −3,123 | 14.01 | 177,106 | Form 4 |
| 2025-06-21 | Walker CoreyPresident Laboratory Solutions | Shares withheld for tax F | −2,730 | 13.57 | 231,271 | Form 4 |
| 2025-05-21 | Stubblefield MichaelDirector, President & CEO | Gift G | −76,000 | – | 1,219,013 | Form 4 |
| 2025-05-21 | Stubblefield MichaelDirector, President & CEO | Gift G | +76,000 | – | 545,500 | Form 4 |
| 2025-05-09 | Gourdier BenoitEVP, Bioscience Production | Grant or award A | +162,866 | – | 236,948 | Form 4 |
| 2025-05-09 | Jones R. BrentEVP, Chief Financial Officer | Grant or award A | +162,866 | – | 269,676 | Form 4 |
| 2025-05-09 | Couturier ChristopheEVP, AMEA | Grant or award A | +61,074 | – | 144,914 | Form 4 |
| 2025-05-09 | Hankamer BrittanyEVP, Chief HR Officer | Grant or award A | +122,149 | – | 171,744 | Form 4 |
| 2025-05-09 | Sokenu ClaudiusEVP, Chief Legal & Compliance | Grant or award A | +122,149 | – | 180,229 | Form 4 |
| 2025-05-09 | Eck Steven WSVP & Chief Accounting Officer | Grant or award A | +20,358 | – | 59,929 | Form 4 |
| 2025-05-09 | Walker CoreyPresident Laboratory Solutions | Grant or award A | +162,866 | – | 234,001 | Form 4 |
| 2025-05-08 | Severino MichaelDirector | Grant or award A | +17,100 | – | 60,551 | Form 4 |
| 2025-05-08 | Makin LouiseDirector | Grant or award A | +17,100 | – | 21,870 | Form 4 |
| 2025-05-08 | Andres JuanDirector | Grant or award A | +17,100 | – | 65,480 | Form 4 |
| 2025-05-08 | Murthy MalaDirector | Grant or award A | +17,100 | – | 44,209 | Form 4 |
| 2025-05-08 | Kang LanDirector | Grant or award A | +17,100 | – | 52,315 | Form 4 |
| 2025-05-08 | Peacock Jonathan MDirector | Grant or award A | +17,100 | – | 219,815 | Form 4 |
| 2025-05-08 | Massaro Joseph RDirector | Grant or award A | +17,100 | – | 52,138 | Form 4 |
| 2025-05-08 | Summe Gregory LDirector | Grant or award A | +17,100 | – | 58,111 | Form 4 |
| 2025-05-08 | Carethers JohnDirector | Grant or award A | +17,100 | – | 45,858 | Form 4 |
| 2025-04-05 | Couturier ChristopheEVP, AMEA | Shares withheld for tax F | −569 | 15.13 | 83,840 | Form 4 |
| 2025-02-25 | Hankamer BrittanyEVP, Chief HR Officer | Shares withheld for tax F | −369 | 17.56 | 49,595 | Form 4 |
| 2025-02-25 | Bramwell JamesEVP Sales, Customer Excellence | Shares withheld for tax F | −583 | 17.56 | 91,137 | Form 4 |
| 2025-02-25 | Eck Steven WSVP & Chief Accounting Officer | Shares withheld for tax F | −505 | 17.56 | 45,511 | Form 4 |
| 2025-02-25 | Stubblefield MichaelDirector, President & CEO | Shares withheld for tax F | −4,969 | 17.56 | 1,448,022 | Form 4 |
| 2025-02-25 | Couturier ChristopheEVP, AMEA | Shares withheld for tax F | −556 | 17.56 | 84,409 | Form 4 |
| 2025-02-24 | Hankamer BrittanyEVP, Chief HR Officer | Shares withheld for tax F | −437 | 17.47 | 49,964 | Form 4 |
| 2025-02-24 | Bramwell JamesEVP Sales, Customer Excellence | Shares withheld for tax F | −2,181 | 17.47 | 91,720 | Form 4 |
| 2025-02-24 | Eck Steven WSVP & Chief Accounting Officer | Shares withheld for tax F | −439 | 17.47 | 46,016 | Form 4 |
| 2025-02-24 | Stubblefield MichaelDirector, President & CEO | Shares withheld for tax F | −6,800 | 17.47 | 1,452,991 | Form 4 |
| 2025-02-24 | Couturier ChristopheEVP, AMEA | Shares withheld for tax F | −750 | 17.47 | 84,965 | Form 4 |
| 2025-02-23 | Couturier ChristopheEVP, AMEA | Shares withheld for tax F | −1,506 | 17.30 | 85,715 | Form 4 |
| 2025-02-23 | Bramwell JamesEVP Sales, Customer Excellence | Shares withheld for tax F | −3,443 | 17.30 | 93,901 | Form 4 |
| 2025-02-23 | Stubblefield MichaelDirector, President & CEO | Shares withheld for tax F | −14,674 | 17.30 | 1,459,791 | Form 4 |
| 2025-02-23 | Sokenu ClaudiusEVP, Chief Legal & Compliance | Shares withheld for tax F | −2,318 | 17.30 | 58,080 | Form 4 |
| 2025-02-23 | Hankamer BrittanyEVP, Chief HR Officer | Shares withheld for tax F | −1,537 | 17.30 | 50,401 | Form 4 |
| 2025-02-23 | Eck Steven WSVP & Chief Accounting Officer | Shares withheld for tax F | −1,956 | 17.30 | 46,455 | Form 4 |
| 2025-02-23 | Gourdier BenoitEVP, Bioscience Production | Shares withheld for tax F | −2,842 | 17.30 | 74,082 | Form 4 |
| 2025-02-20 | Couturier ChristopheEVP, AMEA | Grant or award A | +12,864 | – | 87,221 | Form 4 |
| 2025-02-20 | Stubblefield MichaelDirector, President & CEO | Grant or award A | +157,232 | – | 1,474,465 | Form 4 |
| 2025-02-20 | Jones R. BrentEVP, Chief Financial Officer | Grant or award A | +42,881 | – | 69,646 | Form 4 |
| 2025-02-20 | Jones R. BrentEVP, Chief Financial Officer | Grant or award A | +37,164 | – | 106,810 | Form 4 |
| 2025-02-20 | Sokenu ClaudiusEVP, Chief Legal & Compliance | Grant or award A | +21,440 | – | 60,398 | Form 4 |
| 2025-02-20 | Hankamer BrittanyEVP, Chief HR Officer | Grant or award A | +17,152 | – | 51,938 | Form 4 |
| 2025-02-20 | Eck Steven WSVP & Chief Accounting Officer | Grant or award A | +18,867 | – | 48,411 | Form 4 |
| 2025-02-20 | Gourdier BenoitEVP, Bioscience Production | Grant or award A | +35,734 | – | 76,924 | Form 4 |
| 2024-11-04 | Makin LouiseDirector | Grant or award A | +4,770 | – | 4,770 | Form 4 |
How to read it
- Buy, sale
- Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
- Plan
- A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
- Holds after
- The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
- Value
- Shares times the price the form reports, which is often an average over several fills on the day.
Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.