Avantor director adds shares and receives RSU grant

Avantor, Inc. director Gregory T. Lucier reported two stock acquisitions.

Rhea-AI Filing Summary

Avantor, Inc. director Gregory T. Lucier reported two stock acquisitions. He received a grant of 25,270 restricted stock units, which vest on May 7, 2027, as equity compensation. In a separate open-market transaction, a trust for which he serves as trustee and is a beneficiary purchased 10,000 shares of common stock at a weighted average price of about $8.32, with individual trades between $8.30 and $8.32. Following these transactions, the trust holds 60,000 shares indirectly attributed to him, while his direct holdings total 34,006 shares. He disclaims beneficial ownership of the trust shares except for his pecuniary interest.

Insider Trade Summary

Net Buyer: 10,000 shares

Net Buy 2 txns

Insider LUCIER GREGORY T

Role Director

Bought 10,000 shs ($83K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	10,000	$8.32	$83K
Grant/Award	Common Stock	25,270	$0.00	$0.00

Holdings After Transaction: Common Stock — 34,006 shares (Direct); Common Stock — 60,000 shares (Indirect, By a Trust)

Footnotes (3)

1. F1. Reflects a grant of restricted stock units that vests on May 7, 2027.
2. F2. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $8.30 to $8.32, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each price within the range set forth above.
3. F3. By a trust of which the reporting person serves as trustee and is a beneficiary. The reporting person disclaims beneficial ownership except to the extent of his pecuniary interest therein.

Key Figures

Open-market purchase: 10,000 shares at $8.32 RSU grant: 25,270 restricted stock units Indirect holdings after: 60,000 shares +2 more

5 metrics

Open-market purchase 10,000 shares at $8.32 Weighted average price; trades from $8.30 to $8.32

RSU grant 25,270 restricted stock units Vests on May 7, 2027

Indirect holdings after 60,000 shares Held by a trust associated with Lucier

Direct holdings after 34,006 shares Common stock held directly by Lucier

Price range $8.30 to $8.32 Range of individual trades in the 10,000-share purchase

Key Terms

restricted stock units, weighted average price, beneficial ownership, pecuniary interest

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.

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

beneficial ownership financial

"The reporting person disclaims beneficial ownership except to the extent of his pecuniary interest therein."

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

pecuniary interest financial

"The reporting person disclaims beneficial ownership except to the extent of his pecuniary interest therein."

FAQ

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

What insider transactions did Avantor (AVTR) report for Gregory T. Lucier?

Avantor reported that director Gregory T. Lucier received 25,270 restricted stock units and a trust associated with him bought 10,000 Avantor common shares. The RSUs are compensation, while the trust’s purchases were open‑market transactions at around $8.32 per share.

At what price did the trust buy Avantor (AVTR) shares in the latest Form 4?

A trust associated with Gregory T. Lucier bought 10,000 Avantor shares at a weighted average price of $8.32. Individual trades occurred between $8.30 and $8.32 per share, as disclosed, and the filer offered to provide full trade details upon request.

How many Avantor (AVTR) shares does Gregory T. Lucier hold after these transactions?

After these transactions, Gregory T. Lucier is reported with 34,006 Avantor shares held directly and 60,000 shares held indirectly through a trust. He disclaims beneficial ownership of the trust holdings except to the extent of his pecuniary interest in that trust.

What are the terms of Gregory T. Lucier’s restricted stock unit grant at Avantor (AVTR)?

Gregory T. Lucier received a grant of 25,270 restricted stock units that vest on May 7, 2027. These RSUs represent a form of equity compensation, delivering Avantor common shares to him only if he satisfies the vesting conditions through that date.

Is the Avantor (AVTR) director’s 10,000-share purchase a direct or indirect holding?

The reported 10,000-share purchase is an indirect holding through a trust where Gregory T. Lucier is trustee and a beneficiary. He disclaims beneficial ownership of those trust shares, except for his pecuniary interest, as clarified in the Form 4 footnote.

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

Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 05/11/2026 - 04:39 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^*

LUCIER GREGORY T

(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	34,006	D
Common Stock	05/08/2026		P		10,000	A	$8.32(2)	60,000(3)	I	By a Trust

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.

2. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $8.30 to $8.32, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each price within the range set forth above.

3. By a trust of which the reporting person serves as trustee and is a beneficiary. The reporting person disclaims beneficial ownership except to the extent of his pecuniary interest therein.

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)