LLC tied to Avantor (AVTR) director Sanjeev Mehra buys 125K shares

Rhea-AI Filing Summary

Avantor, Inc. director-associated entity reported a sizable open-market share purchase. A limited liability company linked to director Sanjeev K. Mehra bought 125,000 shares of Avantor common stock on March 10, 2026 at a weighted average price of $8.01 per share, with individual trades ranging from $7.98 to $8.05. Following these purchases, the LLC held 475,000 shares of Avantor common stock indirectly. Separately, Mehra also directly held 8,106 shares after the reported transactions. Mehra disclaims beneficial ownership of the indirectly held securities except to the extent of any pecuniary interest.

Insider Trade Summary

Net Buyer: 125,000 shares ($1,001,250)

Net Buy 2 txns

Insider MEHRA SANJEEV K

Role Director

Bought 125,000 shs ($1.00M)

Type	Security	Shares	Price	Value
Purchase	Common Stock	125,000	$8.01	$1.00M
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 475,000 shares (Indirect, By limited liability company); Common Stock — 8,106 shares (Direct)

Footnotes (1)

1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $7.98 to $8.05, 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. The Reporting Person disclaims beneficial ownership of the securities reported herein as indirectly beneficially owned, except to the extent of any pecuniary interest therein.

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^*

MEHRA SANJEEV K

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
03/10/2026

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	03/10/2026		P		125,000	A	$8.01(1)	475,000	I	By limited liability company(2)
Common Stock								8,106	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. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $7.98 to $8.05, 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.

2. The Reporting Person disclaims beneficial ownership of the securities reported herein as indirectly beneficially owned, except to the extent of any pecuniary interest therein.

Remarks:

	/s/ Scott Baker, as Attorney-in-Fact	03/11/2026
	** 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.

FAQ

What insider transaction did Avantor (AVTR) report for Sanjeev K. Mehra?

Avantor reported an indirect insider share purchase. A limited liability company associated with director Sanjeev K. Mehra bought 125,000 Avantor common shares in the open market, giving investors visibility into additional insider-related equity exposure at recent market prices.

How many Avantor (AVTR) shares were bought in this Form 4 filing?

The filing reports a purchase of 125,000 shares. A limited liability company linked to director Sanjeev K. Mehra acquired 125,000 Avantor common shares, increasing its indirect holdings to 475,000 shares following the transaction, according to the reported post-transaction ownership figure.

At what price were Avantor (AVTR) shares purchased in the reported insider trade?

The weighted average purchase price was $8.01 per share. The shares were acquired in multiple transactions within a range of $7.98 to $8.05, as disclosed, with the weighted average price of these open-market purchases reported as $8.01.

What are Sanjeev K. Mehra’s indirect Avantor (AVTR) holdings after this transaction?

The associated LLC held 475,000 Avantor shares indirectly. After purchasing 125,000 shares, the limited liability company connected to director Sanjeev K. Mehra is reported to own a total of 475,000 Avantor common shares on an indirect basis.

Does Sanjeev K. Mehra hold Avantor (AVTR) shares directly as well?

Yes, the filing shows direct holdings of 8,106 shares. In addition to the indirect ownership through a limited liability company, the Form 4 reports that Sanjeev K. Mehra directly owned 8,106 Avantor common shares following the reported transactions.

What ownership disclaimer is included in the Avantor (AVTR) Form 4 for this transaction?

Mehra disclaims full beneficial ownership of the indirect shares. The filing states he disclaims beneficial ownership of securities held indirectly through the LLC, except to the extent of any pecuniary interest he may have in those shares.