Avantor, Inc. (AVTR) has 20 known insider and institutional holders on record. The largest holder is Connolly Thomas with 67,605,348 shares. Other notable holders include GOLDMAN SACHS & CO. LLC and New Mountain Investments III, LLC.
Over the last 12 months, insiders have made 69 transactions in AVTR stock — 45 buys (valued at $7.68M) and 1 sells (valued at $39.59K). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
AVTR Insider Ownership
Top Holder
Connolly Thomas
67,605,348 shares
Buys (12 mo)
45
$7.68M value
Sells (12 mo)
1
$39.59K value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Connolly Thomas |
Director |
67,605,348 |
2021-05-07 |
|
| 2 |
Goldman Sachs & Co. Llc |
10 Percent Owner |
67,605,348 |
2021-05-07 |
|
| 3 |
New Mountain Investments Iii, Llc |
10 Percent Owner |
28,000,000 |
2020-11-10 |
|
| 4 |
Gupta Rajiv |
Director |
780,562 |
2022-04-05 |
|
| 5 |
Ligner Emmanuel |
President and CEO |
767,137 |
2026-02-23 |
|
| 6 |
Natauri Jo |
Director |
557,656 |
2021-08-13 |
|
| 7 |
Stubblefield Michael |
President & CEO |
545,500 |
2025-05-21 |
|
| 8 |
Mehra Sanjeev K |
Director |
475,000 |
2026-03-11 |
|
| 9 |
Jones R. Brent |
EVP, Chief Financial Officer |
419,782 |
2026-02-25 |
|
| 10 |
Summe Gregory L |
Director |
400,000 |
2026-02-12 |
|
| 11 |
Walker Corey |
President, Vwr Dist. & Servs. |
392,508 |
2026-02-23 |
|
| 12 |
Anderson Allen J |
President & CEO |
377,105 |
2012-01-04 |
|
| 13 |
Gourdier Benoit |
EVP, Bioscience & Medtech |
362,859 |
2026-02-25 |
|
| 14 |
Blenn Mary |
EVP, Chief Operating Officer |
253,384 |
2026-02-23 |
|
| 15 |
Sokenu Claudius |
EVP, Chief Legal & Compliance |
252,429 |
2026-02-25 |
|
| 16 |
Hankamer Brittany |
EVP, Chief HR Officer |
249,404 |
2026-02-25 |
|
| 17 |
Peacock Jonathan M |
Director |
219,815 |
2025-05-12 |
|
| 18 |
Couturier Christophe |
EVP, Amea |
211,271 |
2025-08-12 |
|
| 19 |
Mcallister Eric |
EVP, Chro |
197,899 |
2020-05-19 |
|
| 20 |
Mulac Joseph Carl Iii |
Executive Vice President |
180,000 |
2010-10-27 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-04-03 |
Eck Steven W |
SVP & Chief Accounting Officer |
RSU Award |
31,645 |
- |
- |
| 2026-03-10 |
Mehra Sanjeev K |
Director |
Informative Buy |
125,000 |
$8.01 |
$1M |
| 2026-02-23 |
Gourdier Benoit |
EVP, Bioscience & Medtech |
Tax Withholding of RSU |
3,029 |
$8.89 |
$26.93K |
| 2026-02-24 |
Hankamer Brittany |
EVP, Chief HR Officer |
Tax Withholding of RSU |
359 |
$9.11 |
$3.27K |
| 2026-02-23 |
Hankamer Brittany |
EVP, Chief HR Officer |
Tax Withholding of RSU |
1,324 |
$8.89 |
$11.77K |
| 2026-02-23 |
Sokenu Claudius |
EVP, Chief Legal & Compliance |
Tax Withholding of RSU |
2,376 |
$8.89 |
$21.12K |
| 2026-02-24 |
Eck Steven W |
SVP & Chief Accounting Officer |
Tax Withholding of RSU |
452 |
$9.11 |
$4.12K |
| 2026-02-23 |
Eck Steven W |
SVP & Chief Accounting Officer |
Tax Withholding of RSU |
2,017 |
$8.89 |
$17.93K |
| 2026-02-23 |
Jones R. Brent |
EVP, Chief Financial Officer |
Tax Withholding of RSU |
2,805 |
$8.89 |
$24.94K |
| 2026-02-19 |
Blenn Mary |
EVP, Chief Operating Officer |
RSU Award |
235,993 |
- |
- |
| 2026-02-19 |
Ligner Emmanuel |
President and CEO |
RSU Award |
483,713 |
- |
- |
| 2026-02-20 |
Gourdier Benoit |
EVP, Bioscience & Medtech |
Tax Withholding of RSU |
4,160 |
$9.03 |
$37.56K |
| 2026-02-19 |
Gourdier Benoit |
EVP, Bioscience & Medtech |
RSU Award |
134,364 |
- |
- |
| 2026-02-20 |
Hankamer Brittany |
EVP, Chief HR Officer |
Tax Withholding of RSU |
1,453 |
$9.03 |
$13.12K |
| 2026-02-19 |
Hankamer Brittany |
EVP, Chief HR Officer |
RSU Award |
80,618 |
- |
- |
| 2026-02-20 |
Sokenu Claudius |
EVP, Chief Legal & Compliance |
Tax Withholding of RSU |
2,919 |
$9.03 |
$26.36K |
| 2026-02-19 |
Sokenu Claudius |
EVP, Chief Legal & Compliance |
RSU Award |
80,618 |
- |
- |
| 2026-02-20 |
Walker Corey |
President, Vwr Dist. & Servs. |
Tax Withholding of RSU |
4,963 |
$9.03 |
$44.82K |
| 2026-02-19 |
Walker Corey |
President, Vwr Dist. & Servs. |
RSU Award |
161,237 |
- |
- |
| 2026-02-20 |
Eck Steven W |
SVP & Chief Accounting Officer |
Tax Withholding of RSU |
2,125 |
$9.03 |
$19.19K |
| 2026-02-19 |
Eck Steven W |
SVP & Chief Accounting Officer |
RSU Award |
43,230 |
$9.21 |
$398.15K |
| 2026-02-20 |
Jones R. Brent |
EVP, Chief Financial Officer |
Tax Withholding of RSU |
9,506 |
$9.03 |
$85.84K |
| 2026-02-19 |
Jones R. Brent |
EVP, Chief Financial Officer |
RSU Award |
161,237 |
- |
- |
| 2026-02-19 |
Lucier Gregory T |
Director |
Informative Buy |
50,000 |
$9.16 |
$458K |
| 2026-02-12 |
Summe Gregory L |
Director |
Informative Buy |
100,000 |
$9.40 |
$940K |
