Boon Hwee Koh's departure as Chairperson of the Board of Agilent Technologies, Inc. was reported, effective September 4, 2026; the filing names no successor. As of November 6, 2026, Agilent Technologies, Inc. has reported 4 leadership change filings to the SEC under Item 5.02 of Form 8-K, from April 6, 2026 to September 8, 2026, naming 2 appointments and 1 departure (Form 8-K, September 8, 2026).
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Key facts
- · In / out: Out · Person: Boon Hwee Koh · Role: Chairperson of the Board · Effective: 2026-09-04 · 8-K, 2026-09-08
- · In / out: In · Person: Tim Downs · Role: Chief Accounting Officer · 8-K, 2026-05-27
- · In / out: Reported · Person: not named in the filing · 8-K, 2026-05-04
- · In / out: Reported · Person: not named in the filing · 8-K/A, 2026-04-06
Agilent Technologies, Inc. reported changes in 4 filings among its directors and officers to the SEC on Form 8-K, Item 5.02, from 2026-04-06 to 2026-09-08. They name 3 people, with 2 appointments and 1 departure. Every row below is cited to the filing it comes from, and this page adds each new change as Agilent Technologies, Inc. files it.
Also on the record for Agilent Technologies, Inc.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| April 29, 2026 | Stake report, Schedule 13G, by Vanguard Capital Management | 7.49% of the class | 5%+ stakes | Source |
| April 28, 2026 | Stake report, Schedule 13G, by Vanguard Portfolio Management | 5.09% of the class | 5%+ stakes | Source |
| March 26, 2026 | Stake report, Schedule 13G/A, by The Vanguard Group | — | 5%+ stakes | Source |
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Agilent Technologies, Inc. elsewhere on the record
Companies that share a holder
- Vanguard Portfolio Management also filed stake reports on 941 other companies: Newmark Group Inc (Nov 2026), A10 Networks Inc (Oct 2026), ADT Inc (Oct 2026)
- Vanguard Capital Management also filed stake reports on 1495 other companies: A10 Networks Inc (Oct 2026), Altisource Portfolio Solutions SA (Oct 2026), Alto Neuroscience Inc (Oct 2026)
- The Vanguard Group also filed stake reports on 2384 other companies: BellRing Brands, Inc. (Sep 2026), CAL-MAINE FOODS INC (Sep 2026), FTAI Aviation Ltd. (Sep 2026)
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Timeline
| Filed | In / out | Person | Role | Effective | Source |
|---|---|---|---|---|---|
| 2026-09-08 | Out | Chairperson of the Board | 2026-09-04 | 8-K, 2026-09-08 | |
| 2026-09-08 | In | Director | 2026-09-04 | 8-K, 2026-09-08 | |
| 2026-05-27 | In | Chief Accounting Officer | 8-K, 2026-05-27 | ||
| 2026-05-04 | Reported | not named in the filing | 8-K, 2026-05-04 | ||
| 2026-04-06 | Reported | not named in the filing | 8-K/A, 2026-04-06 |
Who leads Agilent Technologies, Inc., as last reported?
For each role that changed in the filings below, the most recent change reported. A role that did not change in these filings is not listed.
- Director: Glenn Boehnlein, appointed, effective 2026-09-04 (filed 2026-09-08).
- Chairperson of the Board: Boon Hwee Koh, departure reported, effective 2026-09-04 (filed 2026-09-08). No successor is named in these filings.
- Chief Accounting Officer: Tim Downs, appointed (filed 2026-05-27).
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Departing: Boon Hwee Koh, Chairperson of the Board, effective 2026-09-04
(b) On September 2, 2026, Boon Hwee Koh, Chairperson of the Board of Directors (the "Board") of Agilent Technologies, Inc. (the "Company"), notified the Company of his decision to retire from the Board, effective as of September 4, 2026.
Appointed: Glenn Boehnlein, Director, effective 2026-09-04
(d) On September 4, 2026, the Board upon the recommendation of its Nominating/Corporate Governance Committee, appointed Glenn Boehnlein, to fill the vacancy created by the resignation of Mr. Koh, effective September 4, 2026 to serve as a Class III director, the class of directors that will stand for re-election at the 2027 Annual Meeting of Stockholders.
- Mr. Koh's decision to retire was not due to any disagreement with the Company or the Board on any matter relating to the Company's operations, policies or practices.
- The Company and the Board thank Mr. Koh for his valuable insights, perspective, and commitment during his 23-year service on the Board.
- Mr. Boehnlein, age 64, served as Vice President and Chief Financial Officer of Stryker Corporation from 2016 to 2025.
- During his more than two decades at Stryker, he held several senior finance leadership roles, including Chief Financial Officer and Vice President of the company's MedSurg and Neurotechnology Group and Chief Financial Officer of its Global Endoscopy Division.
- Earlier in his career, Mr. Boehnlein served as Chief Financial Officer of MyPrimeTime, a media company, and as a partner at Arthur Andersen LLP, where he provided audit and consulting services to clients across the technology sector.
- Mr. Boehnlein serves on the Board of Directors of Inogen, Inc., a publicly traded medical technology company focused on respiratory health solutions, where he chairs the Audit Committee.
- He also serves on the board of Sutter Health, one of the nation's leading integrated healthcare systems.
- Mr. Boehnlein earned bachelor's and master's degrees in professional accountancy from Mississippi State University.
Appointed: Tim Downs, Chief Accounting Officer
On May 20, 2026, the Company appointed Tim Downs as the new Vice President, Chief Accounting Officer of the Company and as principal accounting officer of the Company, effective as of the first business day following the Company's filing of the quarterly report on Form 10-Q for the quarter ended April 30, 2026 (the "Start Date").
- (b) As previously disclosed, on March 5, 2026, Rodney Gonsalves, informed the Company that he would retire from his position as the Company's Vice President, Corporate Controller and Principal Accounting Officer, the exact date to be determined at a later time.
- Following the Start Date, Mr. Gonsalves will remain employed as Vice President, Finance in order to provide transitional assistance through January 2027, the exact date to be determined at a later time.
- (c) As disclosed above, on May 20, 2026, the Company appointed Tim Downs as the Company's Vice President, Chief Accounting Officer of the Company and as principal accounting officer of the Company effective as of the Start Date.
- Mr. Downs, age 45, previously served as Vice President, Finance - Technical and SEC Reporting of Baker Hughes Company ("Baker Hughes"), a global energy technology company, from April 2024 to May 2026.
- Since joining Baker Hughes in 2019, Mr. Downs held finance and accounting leadership roles of increasing responsibility, including Executive - Technical Controls from May 2023 to April 2024 and Executive - Technical Accounting from 2019 to May 2023.
- Prior to joining Baker Hughes, Mr. Downs held finance and controllership roles at General Electric Company and Deloitte.
- Mr. Downs holds a bachelor's degree in accounting from Bob Jones University.
Reported
On May 4, 2026, the Company appointed Michael Buckner as the new Chief Legal Officer and, as a result, effective on such date, Mr. DiMarco resigned from his positions as Senior Vice President, Chief Legal Officer and Secretary of the Company.
- (b) As previously disclosed, on March 31, 2026, Bret DiMarco, Senior Vice President, Chief Legal Officer and Secretary of Agilent Technologies, Inc. (the "Company"), entered into a transition and general release agreement with the Company (the "Transition Agreement") pursuant to which Mr. DiMarco will resign from such roles upon the earlier to occur of the start date of a new Chief Legal Officer or September 30, 2026.
- In accordance with the Transition Agreement, Mr. DiMarco will remain employed as a Special Advisor in order to provide transitional assistance through December 1, 2026.
Reported
(e) On March 31, 2026, Bret DiMarco, Senior Vice President, Chief Legal Officer and Secretary of Agilent Technologies, Inc. (the "Company"), entered into a transition and general release agreement with the Company (the "Transition Agreement") pursuant to which Mr. DiMarco will resign from such roles upon the earlier to occur of the start date of a new Chief Legal Officer or September 30, 2026.
- In any event, Mr. DiMarco will continue as a Special Advisor in order to provide transitional assistance through December 1, 2026.
- While serving as a Special Advisor, Mr. DiMarco will be paid a base salary at the annualized rate of $350,000, will remain eligible to participate in the Company's group health and welfare plans and will continue vesting in outstanding Company equity awards in accordance with their terms, however, Mr. DiMarco will not be eligible for additional equity grants or for the payment of an annual bonus in respect of the Company's 2026 fiscal year.
- Following completion of Mr. DiMarco's service as Special Advisor and subject to his execution (and the effectiveness) of a supplemental release of claims pursuant to the Transition Agreement, Mr. DiMarco will be paid a lump sum payment in an amount equal to (i) one times his current base salary and target bonus less (ii) the amount of base salary paid in respect of his service as a Special Advisor.
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Where this comes from
A public company must file a current report on Form 8-K with the SEC within four business days when a director leaves or is elected, or when its chief executive, chief financial, chief accounting or chief operating officer, or another named executive, departs or is appointed. That disclosure goes under Item 5.02 of the report.
Every change on this page is taken from one of those filings and quoted in the company's own words, with a link to the filing, so it can be checked at the source. Where a filing names the person, the role and the date a change takes effect, they are shown beside the quote. Where it does not, the quote stands on its own. A filing states what changed; it rarely states why, and neither does this page.