Avantor grants stock awards to COO Mary Blenn

Avantor, Inc. executive Mary Blenn, EVP and Chief Operating Officer, reported equity awards received on February 19, 2026.

Rhea-AI Filing Summary

Avantor, Inc. executive Mary Blenn, EVP and Chief Operating Officer, reported equity awards received on February 19, 2026. She acquired stock options for 1,041,766 shares of common stock at an exercise price of $0.00 per option and a grant of 235,993 shares of common stock.

The filing notes that the restricted stock units vest in three equal annual installments beginning on February 19, 2027. The stock options also vest in three equal annual installments starting on the same date, aligning her compensation with long-term company performance.

Insider Trade Summary

Grant/Award: 1,277,759 shares

Grant/Award 2 txns

Insider Blenn Mary

Role EVP, Chief Operating Officer

Type	Security	Shares	Price	Value
Grant/Award	Stock Options (Right to Buy)	1,041,766	$0.00	$0.00
Grant/Award	Common Stock	235,993	$0.00	$0.00

Holdings After Transaction: Stock Options (Right to Buy) — 1,041,766 contracts (Direct); Common Stock — 253,384 shares (Direct)

Footnotes (2)

1. F1. Reflects a grant of restricted stock units that vest in three equal annual installments beginning on February 19, 2027.
2. F2. Reflects a grant of stock options that vest in three equal annual installments beginning on February 19, 2027.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What equity awards did Avantor (AVTR) grant to EVP and COO Mary Blenn?

Avantor granted Mary Blenn stock options for 1,041,766 shares and 235,993 shares of common stock as equity awards. These grants represent part of her executive compensation package and are intended to align her interests with long-term shareholder value.

How do Mary Blenn’s new Avantor (AVTR) restricted stock units vest?

Mary Blenn’s restricted stock units vest in three equal annual installments starting on February 19, 2027. This means one-third of the award becomes deliverable each year over three years, encouraging retention and a longer-term focus on company performance.

What is the vesting schedule for Mary Blenn’s Avantor (AVTR) stock options?

Her stock options vest in three equal annual installments beginning on February 19, 2027. Each year, one-third of the options become exercisable, creating a multi-year incentive for the executive to support sustained company and share price performance.

Were Mary Blenn’s Avantor (AVTR) equity awards open-market purchases or grants?

The transactions are classified as grants or awards, not open-market purchases. They are reported with code “A” for acquisition, reflecting equity compensation provided by the company rather than shares bought or sold in the market by the executive.

Does the Avantor (AVTR) Form 4 show Mary Blenn selling any shares?

No share sales are reported. The Form 4 only shows acquisitions of stock options and common stock as compensation grants. The transaction summary lists two acquire transactions and zero dispose or sell transactions, indicating no selling activity in this filing.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 02/23/2026 - 08:53 PM Learn about SEC filing dates

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^*

Blenn Mary

(Last) (First) (Middle)

RADNOR CORPORATE CENTER, BUILDING ONE,

SUITE 200, 100 MATSONFORD ROAD

(Street)

RADNOR PA 19087

(City) (State) (Zip)

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

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Chief Operating Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/19/2026

4. 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 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	02/19/2026		A(1)		235,993	A	$0	253,384	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
Stock Options (Right to Buy)	$11.05	02/19/2026		A		1,041,766		(2)	02/19/2036	Common Stock	1,041,766	$0	1,041,766	D

Explanation of Responses:

1. Reflects a grant of restricted stock units that vest in three equal annual installments beginning on February 19, 2027.

2. Reflects a grant of stock options that vest in three equal annual installments beginning on February 19, 2027.

Remarks:

	/s/ Scott Baker, by power of attorney for Mary Blenn	02/23/2026
	** 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.
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