[144] Avantor, Inc. SEC Filing

Rhea-AI Filing Summary

Avantor, Inc. (AVTR) filed a Form 144 indicating an insider’s intent to sell 3,476 common shares through Merrill, Columbus, on or after 08-05-2025. The proposed sale has an aggregate market value of approximately $39,592, implying a per-share price near $11.38.

The seller acquired the shares on 07-31-2025 via a restricted-stock vesting. No sales were reported in the prior three months and no Rule 10b5-1 plan date was disclosed. With ~681.7 million shares outstanding, the transaction represents less than 0.001% of shares outstanding, signalling minimal dilution or insider-sentiment read-through. The filing is routine and does not suggest undisclosed adverse information per the signatory attestation.

Insights

Equity Analyst

TL;DR: Very small insider sale (<$40k) equals <0.001% of float—market impact negligible.

The Form 144 covers 3,476 AVTR shares worth about $40k. Compared with Avantor’s 681.7 M shares outstanding and $15 B+ market cap, the size is immaterial. No pattern of recent sales is reported, and the shares stem from a July 2025 restricted-stock vest. The notice is therefore routine housekeeping rather than a signal of deteriorating fundamentals or insider sentiment shift. I rate the filing neutral, with no expected price impact.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Merrill 8890 Lyra Drive 5th Floor Columbus OH 43240	3476	39592.00	681738675	08/05/2025	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	07/31/2025	Restricted Stock Grant Vest	Avantor Inc			1033	07/31/2025	na

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

How many Avantor (AVTR) shares are being sold under the Form 144?

The notice covers 3,476 common shares.

What is the approximate dollar value of the proposed AVTR share sale?

The aggregate market value is about $39,592.

What percentage of Avantor’s outstanding shares does the sale represent?

Roughly 0.001% of the 681.7 M shares outstanding.

When were the shares acquired and by what method?

They were acquired on 07-31-2025 via a restricted-stock vesting from Avantor.

Is there any evidence of a larger selling program or 10b5-1 plan?

The filing does not disclose prior 3-month sales or list a 10b5-1 plan adoption date.