GREGORY L. SUMME - 30 Oct 2025 Form 4 Insider Report for Avantor, Inc. (AVTR)

Role
Director
Signature
/s/ Scott Baker, by power of attorney for Greg Summe
Issuer symbol
AVTR
Transactions as of
30 Oct 2025
Net transactions value
+$1,125,000
Form type
4
Filing time
31 Oct 2025, 09:46:22 UTC
Previous filing
16 Oct 2025
Next filing
16 Jan 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
SUMME GREGORY L Director RADNOR CORPORATE CENTER, BUILDING ONE, SUITE 200, 100 MATSONFORD ROAD, RADNOR /s/ Scott Baker, by power of attorney for Greg Summe 31 Oct 2025 0001143422

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AVTR Common Stock Purchase $1,125,000 +100,000 +50% $11.25 300,000 30 Oct 2025 By a Trust F1
holding AVTR Common Stock 58,111 30 Oct 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 By a trust. The reporting person reports beneficial ownership of AVTR common stock held by trust but disclaims beneficial ownership except to the extent of his pecuniary interest therein.