Avantor (AVTR) director Simon Dingemans discloses zero beneficial ownership

Rhea-AI Filing Summary

Avantor, Inc. director reports no share ownership. Simon Dingemans, who serves as a director of Avantor, Inc.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Dingemans Simon

(Last) (First) (Middle)

RADNOR CORPORATE CENTER, BUILDING ONE,

SUITE 200, 100 MATSONFORD ROAD

(Street)

RADNOR PA 19087

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
01/02/2026

3. Issuer Name and Ticker or Trading Symbol
Avantor, Inc. [ AVTR ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

Exhibit List: Exhibit 24 - Power of Attorney

No securities are beneficially owned.

	/s/ Scott Baker, as Attorney-in-Fact	01/12/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What does the latest insider filing reveal about Avantor (AVTR) director Simon Dingemans?

The filing shows that Simon Dingemans, a director of Avantor, Inc., currently reports no beneficial ownership of Avantor securities, including both non-derivative and derivative holdings.

What is Simon Dingemans’ reported relationship to Avantor (AVTR)?

Simon Dingemans is identified as a director of Avantor, Inc., with no indication that he is an officer or 10% owner, and he has filed individually as one reporting person.

Does the Avantor (AVTR) director have any derivative securities reported on this Form 3?

No. The section for Derivative Securities Beneficially Owned is effectively empty, and the remarks state that no securities are beneficially owned.

Are any Avantor (AVTR) shares indirectly owned by entities associated with Simon Dingemans?

Based on this filing, no indirect beneficial ownership is reported. The remarks explicitly state that no securities are beneficially owned.

Who signed the Avantor (AVTR) insider ownership statement for Simon Dingemans?

The report was signed by /s/ Scott Baker, as Attorney-in-Fact for Simon Dingemans, indicating that it was executed under a power of attorney (listed as Exhibit 24).