A detailed history of Engine Capital Management, LP transactions in Avantor, Inc. stock. As of the latest transaction made, Engine Capital Management, LP holds 19,720,430 shares of AVTR stock, worth $224 Million. This represents 34.84% of its overall portfolio holdings.

Number of Shares
19,720,430
Previous 5,504,309 258.27%
Holding current value
$224 Million
Previous $74.1 Million 232.19%
% of portfolio
34.84%
Previous 20.91%

Shares

2 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2025

Nov 14, 2025

BUY
$11.18 - $14.21 $159 Million - $202 Million
14,216,121 Added 258.27%
19,720,430 $246 Million
Q2 2025

Aug 14, 2025

BUY
$11.94 - $16.29 $65.7 Million - $89.7 Million
5,504,309 New
5,504,309 $74.1 Million

Others Institutions Holding AVTR

About Avantor, Inc.


  • Ticker AVTR
  • Exchange NYSE
  • Sector Basic Materials
  • Industry Specialty Chemicals
  • Shares Outstandng 674,035,008
  • Market Cap $7.67B
  • Description
  • Avantor, Inc. provides products and services to customers in biopharma, healthcare, education and government, advanced technologies, and applied materials industries in the Americas, Europe, Asia, the Middle East, and Africa. The company offers materials and consumables, such as purity chemicals and reagents, lab products and supplies, formulate...
More about AVTR
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