Avantor Inc.

Last updated September 27, 2026

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Organization details

Legal name: Avantor Inc.
Former names: Vail Holdco Corp
Ownership: Public
Status: Active
Sector (GICS): Information Technology
SIC code: 3826 — Laboratory Analytical Instruments
Headquarters city: Radnor
Headquarters state / province: Pennsylvania
Headquarters country: United States
Fiscal year end: December
Ticker symbol: AVTR
Primary stock exchange: NYSE

Identifiers

SEC CIK: 0001722482
EIN: 82-2758923
Wikidata ID: Q104842834

Board of directors

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Christi Shaw · Director
Since 2023
Emmanuel Ligner · Director · President and CEO
Since 2025
Gregory L. Summe · Director Overboarded
Since 2023
Gregory T. Lucier · Director
Since 2025
John Carethers · Director
Since 2023
Jonathan M. Peacock · Director
Since 2023
Joseph R. Massaro · Director
Since 2023
Juan Andres · Director
Since 2023
Lan Kang · Director
Since 2023
Louise Makin · Director
Since 2024
Mala Murthy · Director
Since 2023
Michael Severino · Director
Since 2023
Michael Stubblefield · Director · President & CEO
Since 2023
Sanjeev K. Mehra · Director
Since 2025
Simon Dingemans · Director
Since 2026

Chief executives

Emmanuel Ligner · President and CEO

Since August 2025

26 CEO score

Weak · grade F

Out of 100, from shareholder return, dividends, growth and acquisitions.

Partial: only 20% of the scoring weight is on file.

Revenue growth 20%: 26

20% of the scoring weight is on file. Figures cover December 2024 – December 2025.

Michael Stubblefield · President & CEO

Until August 2025 · Former

Director election results

Annual meeting of May 7, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

7 of this board's directors also sit on 13 other boards. 1 is in the same sector.

Shared director Other board Same sector

AbbVie Inc.
via John Carethers
Beam Therapeutics Inc.
via Christi Shaw
DENTSPLY SIRONA Inc.
via Gregory T. Lucier
GRAIL Inc.
via Gregory L. Summe
Ingersoll Rand Inc.
via Michael Stubblefield
Kyverna Therapeutics Inc.
via Christi Shaw
Maravai LifeSciences Holdings Inc.
via Gregory T. Lucier
NXP Semiconductors N.V. Same sector
via Gregory L. Summe
Sarepta Therapeutics Inc.
via Michael Severino
State Street Corporation
via Gregory L. Summe
Viatris Inc.
via Michael Severino
WPP plc
via Simon Dingemans
Wheels Up Experience Inc.
via Gregory L. Summe

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months: $7,560,575; 7 purchases by 5 insiders
Sold, last 12 months: $0; 0 sales by 0 insiders

Date	Insider	Transaction	Shares	Price	Value
Oct 30, 2026	Hankamer Brittany Officer (EVP, Chief HR Officer)	Grant or award	+46,728	—	—
Oct 30, 2026	Sokenu Claudius Officer (EVP, Chief Legal & Compliance)	Grant or award	+62,305	—	—
Sep 21, 2026	Garner Todd W Officer (EVP and CFO)	Grant or award	+49,688	—	—
Aug 18, 2026	Emmanuel Ligner Director, Officer (President and CEO)	Shares withheld for tax	−29,803	$13.33	$397,274
Aug 14, 2026	Hankamer Brittany Officer (EVP, Chief HR Officer)	Shares withheld for tax	−181	$13.66	$2,472
Jul 31, 2026	Eck Steven W Officer (SVP & Chief Accounting Officer)	Shares withheld for tax	−1,385	$13.78	$19,085
Jul 24, 2026	Sokenu Claudius Officer (EVP, Chief Legal & Compliance)	Shares withheld for tax	−1,201	$11.44	$13,739
Jun 21, 2026	Walker Corey Officer (President, VWR Dist. & Servs.)	Shares withheld for tax	−3,010	$9.58	$28,836
May 8, 2026	Gregory T. Lucier Director	Open-market purchase	+10,000	$8.32	$83,200
May 7, 2026	Mala Murthy Director	Grant or award	+25,270	—	—
May 7, 2026	Gregory T. Lucier Director	Grant or award	+25,270	—	—
May 7, 2026	Simon Dingemans Director	Grant or award	+25,270	—	—
May 7, 2026	Louise Makin Director	Grant or award	+25,270	—	—
May 7, 2026	Joseph R. Massaro Director	Grant or award	+25,270	—	—
May 7, 2026	Sanjeev K. Mehra Director	Grant or award	+25,270	—	—

Peers

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Questions about Avantor Inc.

Who is the CEO of Avantor Inc.?

Emmanuel Ligner has been Avantor Inc.'s President and CEO since August 2025.

How many directors are on Avantor Inc.'s board?

Avantor Inc.'s board has 15 directors: Christi Shaw, Emmanuel Ligner, Gregory L. Summe, Gregory T. Lucier, John Carethers, Jonathan M. Peacock, Joseph R. Massaro, Juan Andres, Lan Kang, Louise Makin and 5 others.

Are Avantor Inc. insiders buying or selling shares?

Over the last 12 months, Avantor Inc. insiders bought $7.6 million of shares in 7 purchases and made no open-market sales on the open market, as reported to the SEC on Forms 4 and 5.

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