Are there any related-party or family relationships tied to Avantor’s interim CFO appointment?

The company disclosed that Steve Eck has no family relationships with Avantor’s directors or executive officers. It also stated there are no transactions with him requiring disclosure under Item 404(a) of Regulation S-K, indicating no reportable related-party arrangements connected to his appointment.

Avantor (AVTR) plans CFO change, names interim finance chief and reaffirms 2026 guidance

Filing Impact

(Moderate)

Filing Sentiment

(Neutral)

Form Type

8-K

Rhea-AI Filing Summary

Avantor, Inc. announced a planned CFO transition and reaffirmed its fiscal 2026 guidance. Executive Vice President and CFO R. Brent Jones will leave the company on or before June 24, 2026, after providing 90 days’ notice under his employment agreement unless waived.

Upon his departure, Senior Vice President and Chief Accounting Officer Steve Eck will serve as interim CFO while continuing as principal accounting officer as the company conducts a search for a permanent CFO. To reflect his expanded responsibilities, Eck will receive an additional $45,000 per month for each month he serves as interim CFO and a one-time $250,000 restricted stock unit award vesting ratably over three years.

The company highlighted Eck’s extensive finance and accounting background and stated that its previously issued fiscal 2026 financial guidance from its fourth quarter 2025 earnings call remains unchanged.

Insights

Avantor plans an orderly CFO change while keeping 2026 guidance intact.

Avantor disclosed that CFO R. Brent Jones will depart by June 24, 2026, with a required 90-day notice period. The company has pre-identified Senior Vice President and Chief Accounting Officer Steve Eck as interim CFO, maintaining continuity in oversight of reporting and internal controls.

Eck’s incremental compensation includes $45,000 per month during his interim service and a one-time $250,000 restricted stock unit grant vesting over three years. This structure ties part of his added pay to equity over time, aligning incentives with shareholder outcomes during the transition.

The company also reaffirmed its fiscal 2026 guidance provided on its Q4 2025 call, suggesting that, based on current information, the leadership change does not alter its financial outlook. Future updates in regular earnings communications will clarify whether execution remains on track as the permanent CFO search progresses.

8-K Event Classification

3 items: 5.02, 7.01, 9.01

3 items

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance

Key personnel changes including departures, elections, or appointments of directors and executive officers.

Item 7.01 Regulation FD Disclosure Disclosure

Material non-public information disclosed under Regulation Fair Disclosure, often investor presentations or guidance.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

Key Figures

CFO departure deadline: on or before June 24, 2026 Interim CFO monthly supplement: $45,000 per month Interim CFO RSU award: $250,000 RSUs +5 more

8 metrics

CFO departure deadline on or before June 24, 2026 Planned date by which R. Brent Jones will leave

Interim CFO monthly supplement $45,000 per month Paid to Steve Eck for each month as interim CFO

Interim CFO RSU award $250,000 RSUs One-time restricted stock unit grant to Steve Eck

RSU vesting period 3 years Award vests ratably over three years from grant date

Notice period 90 days Required notice before effectiveness of CFO resignation

Interim CFO age 50 years Age of Steve Eck as disclosed

Customer locations more than 300,000 locations Avantor products used across global customer sites

Countries served 180 countries Geographic reach of Avantor’s customer base

Key Terms

interim CFO, restricted stock units, principal accounting officer, Regulation FD Disclosure, +2 more

6 terms

interim CFO financial

"will serve as interim CFO upon Mr. Jones’ departure"

An interim CFO is a temporary chief financial officer hired to run a company’s finance operations during a leadership transition, a search for a permanent hire, or while specific financial issues are resolved. Investors pay attention because this person manages budgeting, financial reporting and communications with shareholders—like a substitute driver keeping a car on course—so their competence affects short‑term financial stability, the accuracy of public reports, and market confidence.

restricted stock units financial

"a one-time special award of restricted stock units with a value of $250,000"

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.

principal accounting officer financial

"retain his responsibilities as the Company’s principal accounting officer"

The Principal Accounting Officer is the person responsible for making sure a company's financial records are accurate and follow the rules. They play a key role in preparing financial reports that show how well the company is doing. This helps investors, managers, and regulators trust the company's financial information.

Regulation FD Disclosure regulatory

"Item 7.01. Regulation FD Disclosure."

Item 404(a) of Regulation S-K regulatory

"required to be reported under Item 404(a) of Regulation S-K"

emerging growth company regulatory

"Emerging growth company"

An emerging growth company is a recently public or smaller public firm that qualifies for temporary, lighter regulatory and disclosure rules to reduce the cost and effort of being public. For investors, it means the company may provide less historical financial detail and face fewer reporting requirements than larger firms, so it can grow more quickly but also carries higher uncertainty—like buying a promising early-stage product with fewer user reviews.

Understanding 8-K Material Events →

04/01/2026 - 08:06 AM

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): March 26, 2026

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

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 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On March 26, 2026, Mr. R. Brent Jones notified Avantor, Inc. (the “Company”) of his decision to resign as the Company’s Executive Vice President and Chief Financial Officer (“CFO”) to join a company outside the life sciences industry. While a final departure date has not been set, Mr. Jones’ employment agreement requires him to provide 90 days’ notice before the effectiveness of his resignation, unless waived by the Company. Following Mr. Jones’ departure, the Company anticipates appointing Steven Eck, the Company’s Senior Vice President and Chief Accounting Officer as interim CFO of the Company. Mr. Eck will continue to serve in his current role and retain his responsibilities as the Company’s principal accounting officer while the Company undertakes an executive search process for a permanent CFO.

Mr. Eck, 50, joined the Company in 2019 as Senior Vice President and Chief Accounting Officer. Before joining the Company, Mr. Eck previously served as the principal accounting officer of CSS Industries, Inc., a consumer products company, from June 2018 to April 2019. Prior to joining CSS Industries in 2018, Mr. Eck served as a Vice President of Finance and in other senior level finance positions at Fidelity National Information Systems, a financial technology and payments company, between 2014 and 2018. Mr. Eck also served in senior accounting roles at Gardner Denver, Inc., an industrial manufacturer, and at General Electric Company, a high-tech industrial company, between 2010 and 2014. Mr. Eck began his professional career in 2001 at Deloitte & Touche LLP. Mr. Eck earned a B.A. in accounting from Muhlenberg College and is a Certified Public Accountant.

Mr. Eck does not have any family relationships with any of the Company’s directors or executive officers, there are no arrangements or understandings between Mr. Eck and any other persons pursuant to which she was selected as an officer, and there are no transactions between Mr. Eck and the Company that would be required to be reported under Item 404(a) of Regulation S-K.

In connection with Mr. Eck’s appointment, the Company entered into amended compensation arrangements with Mr. Eck providing the following additional compensation that is commensurate with his additional duties as interim CFO: a payment of $45,000 per month for each month Mr. Eck serves in this capacity, and a one-time special award of restricted stock units with a value of $250,000 which will vest ratably over three years from the grant date.

Item 7.01. Regulation FD Disclosure.

On April 1, 2026, the Company issued a press release announcing Mr. Jones’ planned departure. A copy of the press release is furnished herewith as Exhibit No. 99 to this Current Report on Form 8-K, and shall not be deemed filed for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section and shall not be deemed to be incorporated by reference into any filing by the Company under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.


Exhibit No.						Description
99						Press Release, dated April 1, 2026
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: April 1, 2026	By:	/s/ Claudius Sokenu
		Name:	Claudius Sokenu
		Title:	Executive Vice President, Chief Legal and Compliance Officer and Secretary

News release FOR IMMEDIATE RELEASE Avantor® Announces CFO Transition RADNOR, Pa. – April 1, 2026 – Avantor, Inc. (NYSE: AVTR), a leading global provider of mission- critical products and services to customers in the life sciences and advanced technology industries, today announced that Executive Vice President and Chief Financial Officer (CFO), R. Brent Jones, will leave the Company on or before June 24, 2026. Avantor has initiated a search to identify the Company’s next CFO. To ensure a smooth transition until a new CFO is appointed, Steve Eck, Senior Vice President and Chief Accounting Officer (CAO), will serve as interim CFO upon Mr. Jones’ departure. Mr. Eck is a veteran finance executive who has served as Avantor’s CAO since 2019 with responsibility for financial reporting and internal controls. Prior to joining Avantor, he held senior finance roles at companies including CSS Industries, Fidelity National Information Systems, General Electric Company and Deloitte & Touche LLP. Reaffirms 2026 Guidance In conjunction with today’s announcement, Avantor reaffirmed the fiscal 2026 financial guidance it provided during its fourth quarter 2025 earnings call on February 11, 2026. About Avantor Avantor® is a leading life science tools company and global provider of mission-critical products and services to the life sciences and advanced technology industries. We work side-by-side with customers at every step of the scientific journey to enable breakthroughs in medicine, healthcare, and technology. Our portfolio is used in virtually every stage of the most important research, development and production activities at more than 300,000 customer locations in 180 countries. For more information, visit avantorsciences.com and find us on LinkedIn, X (Twitter) and Facebook. Investor Relations Contact Chris Fidyk Vice President, Investor Relations Avantor Chris.Fidyk@avantorsciences.com Global Media Contact Eric Van Zanten Head of External Communications Avantor 610-529-6219 Eric.VanZanten@avantorsciences.com SOURCE: Avantor and Financial News

Source: View Original Filing on SEC EDGAR

FAQ

What CFO changes did Avantor (AVTR) announce in this 8-K filing?

Avantor announced that CFO R. Brent Jones will leave on or before June 24, 2026. Senior Vice President and Chief Accounting Officer Steve Eck will serve as interim CFO while the company searches for a permanent successor, aiming to keep financial leadership stable.

Who is Avantor (AVTR) appointing as interim CFO and what is his background?

Avantor will appoint Steve Eck, its Senior Vice President and Chief Accounting Officer, as interim CFO. He has served as CAO since 2019 and previously held senior finance roles at CSS Industries, Fidelity National Information Systems, General Electric and Deloitte & Touche.

How will Avantor (AVTR) compensate Steve Eck for serving as interim CFO?

For his interim CFO role, Steve Eck will receive an extra $45,000 per month and a one-time $250,000 restricted stock unit grant. The RSUs vest ratably over three years, linking a portion of his added compensation to Avantor’s long-term performance.

Did Avantor (AVTR) change its fiscal 2026 financial guidance with this CFO transition?

Avantor reaffirmed its fiscal 2026 financial guidance previously given on its fourth quarter 2025 earnings call. The company indicated that the planned CFO transition does not currently alter its outlook, maintaining the same targets it shared with investors in February 2026.

When will Avantor (AVTR) CFO R. Brent Jones leave the company?

Avantor stated that CFO R. Brent Jones will depart on or before June 24, 2026. His employment agreement requires 90 days’ notice before his resignation becomes effective, unless the company chooses to waive that notice requirement for timing flexibility.

Filing Exhibits & Attachments

5 documents

Press Releases

EX-99 EX-99 2.7 KB

Avantor (AVTR) plans CFO change, names interim finance chief and reaffirms 2026 guidance

Rhea-AI Filing Summary

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