UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 14, 2024

Avantor, Inc.

(Exact name of registrant as specified in its charter)

Delaware	001-38912	82-2758923
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

Radnor Corporate Center, Building One, Suite 200

100 Matsonford Road

Radnor, Pennsylvania 19087

(Address of principal executive offices, including zip code)

(610) 386-1700

(Registrant’s telephone number, including area code)

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, $0.01 par value	AVTR	New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02    Results of Operations and Financial Condition.

On February 14, 2024, Avantor, Inc. (“Avantor”) issued a press release announcing its financial results for the quarter and year ended December 31, 2023. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Item 7.01. Regulation FD Disclosure.

As previously disclosed in the Current Report on Form 8-K filed with the Securities and Exchange Commission (“SEC”) on December 7, 2023, Avantor is realigning its business units, effective the first quarter of 2024, into two reportable business segments: Laboratory Solutions and Bioscience Production.

To assist investors who may want to consider the effects of these segment reporting changes on Avantor’s historical results, Avantor is furnishing herewith as Exhibit 99.2 unaudited supplemental recast financial information for each quarter of fiscal years 2022 and 2023 and for the fiscal years ended December 31, 2021, 2022, and 2023 that reflects the segment changes described above. The changes to Avantor’s segment reporting will be reflected in Avantor’s financial statements commencing with the first Quarterly Report of 2024 on Form 10-Q.

The information contained in this Current Report on Form 8-K, including Exhibit 99.1 and Exhibit 99.2, is being “furnished” pursuant to the Securities Exchange Act of 1934, as amended (the “Exchange Act”) and thus shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section or incorporated by reference into any filings under the Securities Act of 1933, as amended.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.	Description
99.1	Avantor, Inc. Earnings Press Release dated February 14, 2024
99.2	Unaudited Supplemental Summary Financial Information
104	The cover page from this Current Report on Form 8-K, formatted in Inline XBRL

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	Avantor, Inc.
Date: February 14, 2024	By:	/s/ Steven Eck
		Name:	Steven Eck
		Title:	Senior Vice President and Chief Accounting Officer (Principal Accounting Officer)