Gregory L. Summe - 07 May 2026 Form 4 Insider Report for Avantor, Inc. (AVTR)

Reporting relationship: Director
Issuer ticker: AVTR
Reported as of: 07 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 11 May 2026, 16:38:25 UTC
Prior SEC filing: 17 Apr 2026
Next SEC filing: 10 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Scott Baker, as Attorney-in-Fact

Key filing fact

Gregory L. Summe filed Form 4 for Avantor, Inc. (AVTR) on 11 May 2026.

Key facts

This page summarizes Gregory L. Summe's Form 4 filing for Avantor, Inc. (AVTR).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 11 May 2026, 16:38.

Change

Previous filing in this sequence was filed on 17 Apr 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001143422 Primary reporting owner

SUMME GREGORY L

Relationship: Director
Address: RADNOR CORPORATE CENTER, BUILDING ONE, SUITE 200, 100 MATSONFORD ROAD, RADNOR
Signature: /s/ Scott Baker, as Attorney-in-Fact
Signature date: 11 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

AVTR transaction

Common Stock

Award

Transaction value
Shares: +25,270
Change %: +43%
Price: $0.000000^*
Shares after: 83,381
Date: 07 May 2026
Ownership: Direct
Footnotes: F1

AVTR holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 400,000
Date: 07 May 2026
Ownership: By a Trust

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Reflects a grant of restricted stock units that vests on May 7, 2027.

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