Stock grant lifts Avantor (NYSE: AVTR) director Simon Dingemans’ holdings

Rhea-AI Filing Summary

Dingemans Simon reported acquisition or exercise transactions in this Form 4 filing.

Avantor director Simon Dingemans reported an equity compensation grant of 25,270 shares of Common Stock. The award is in the form of restricted stock units that vest on May 7, 2027, meaning the shares are delivered only if he remains eligible through that date.

Following this grant, Dingemans directly holds 31,495 shares of Avantor stock. The transaction carried no cash purchase price and reflects a routine, stock-based component of his director compensation rather than an open-market buy or sell.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Dingemans Simon

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	25,270	$0.00	--

Holdings After Transaction: Common Stock — 31,495 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

RSU grant size: 25,270 shares Grant price: $0.00 per share Holdings after grant: 31,495 shares +1 more

4 metrics

RSU grant size 25,270 shares Restricted stock units granted to director Simon Dingemans

Grant price $0.00 per share Reported transaction price for the RSU award

Holdings after grant 31,495 shares Total Avantor shares directly held following the transaction

Vesting date May 7, 2027 Date on which the 25,270 restricted stock units vest

Key Terms

restricted stock units, Form 4, Common Stock, Grant, award, or other acquisition

4 terms

restricted stock units financial

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

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Form 4 regulatory

"INSIDER FILING DATA (Form 4):"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Common Stock financial

"security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Grant, award, or other acquisition financial

"transaction_code_description": "Grant, award, or other acquisition""

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Dingemans Simon

(Last) (First) (Middle)

RADNOR CORPORATE CENTER, BUILDING ONE,

SUITE 200, 100 MATSONFORD ROAD

(Street)

RADNOR PENNSYLVANIA 19087

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/07/2026

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

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

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/07/2026		A(1)		25,270	A	$0	31,495	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

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

Remarks:

	/s/ Scott Baker, as Attorney-in-Fact	05/11/2026
	** 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 4 (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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Avantor (AVTR) director Simon Dingemans report?

Simon Dingemans reported receiving 25,270 restricted stock units of Avantor Common Stock as an equity compensation grant. The units were awarded at no cash cost and increase his direct holdings, reflecting a routine stock-based element of his director compensation package.

When do Simon Dingemans' newly granted Avantor (AVTR) restricted stock units vest?

The 25,270 restricted stock units granted to Simon Dingemans vest on May 7, 2027. Vesting means the shares are delivered only if specified conditions, typically continued service as a director through that date, are satisfied under the award’s terms.

How many Avantor (AVTR) shares does Simon Dingemans hold after this Form 4 transaction?

After the reported grant, Simon Dingemans directly holds 31,495 shares of Avantor Common Stock. This figure includes the newly awarded 25,270 restricted stock units, which will settle into shares upon vesting, assuming the vesting conditions are met.

Did Simon Dingemans buy or sell Avantor (AVTR) shares on the open market?

No open-market buy or sell occurred in this filing. The Form 4 shows a grant of 25,270 restricted stock units at a reported price of $0.00 per share, indicating a compensation award rather than a discretionary market transaction.

What does the Form 4 transaction code "A" mean for Avantor (AVTR) director Simon Dingemans?

The transaction code “A” indicates a grant, award, or other acquisition of securities. For Simon Dingemans, it reflects an equity compensation grant of 25,270 restricted stock units, not a purchase he initiated in the open market.