Paul Diemer was appointed Director of SES AI Corp. As of November 6, 2026, SES AI Corp has reported 2 leadership change filings to the SEC under Item 5.02 of Form 8-K, from April 23, 2026 to August 11, 2026, naming 1 appointment (Form 8-K, August 11, 2026).
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SES AI Corp reported changes in 2 filings among its directors and officers to the SEC on Form 8-K, Item 5.02, from 2026-04-23 to 2026-08-11. They name 1 person. Every row below is cited to the filing it comes from, and this page adds each new change as SES AI Corp files it.
Also on the record for SES AI Corp
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| July 30, 2026 | Stake report, Schedule 13G, by BlackRock, Inc. | 5.8% of the class | 5%+ stakes | Source |
| January 21, 2026 | Stake report, Schedule 13G/A, by Tianqi Lithium HK Co., Ltd. | 7.8% of the class | 5%+ stakes | Source |
| November 10, 2025 | Stake report, Schedule 13G/A, by Temasek Holdings (Private) Limited | 1% of the class | 5%+ stakes | Source |
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More on SES AI Corp and the records around it.
SES AI Corp elsewhere on the record
- 5%+ stake filings Jul 2026
- Who owns it
Companies that share a holder
- Temasek Holdings (Private) Limited also filed stake reports on 8 other companies: Pasqal Holding SA (Oct 2026), Flywire Corporation (Jul 2026), Amber International Holding Limited (Jun 2026)
- BlackRock, Inc. also filed stake reports on 1596 other companies: AvePoint, Inc. (Nov 2026), BIOMARIN PHARMACEUTICAL INC (Nov 2026), MSG RANGERS CORP (Nov 2026)
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Timeline
| Filed | In / out | Person | Role | Effective | Source |
|---|---|---|---|---|---|
| 2026-08-11 | In | Director | 8-K, 2026-08-11 | ||
| 2026-04-23 | Reported | not named in the filing | 8-K, 2026-04-23 |
Who leads SES AI Corp, 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: Paul Diemer, appointed (filed 2026-08-11).
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Find candidates like Director at SES AI CorpEvery change, in the filing's words
Appointed: Paul Diemer, Director
On August 6, 2026, the Board of Directors of the Company (the "Board") appointed Paul Diemer to serve as a Class II director, effective immediately, for a term expiring at the 2027 Annual Meeting of Stockholders, or his earlier death, resignation, retirement, disqualification or removal.
- The Board has determined that Mr. Diemer meets the independence requirements of the Company's Corporate Governance Guidelines and under applicable New York Stock Exchange listing standards.
- Mr. Diemer, 49, currently serves as Senior Vice President at Generac Power Systems ("Generac"), a role he has held since July 2026.
- Prior to Generac, Mr. Diemer served as Chief Technology Officer of the power business of Flex Ltd. ("Flex") from April 2025 to July 2026, where he led the global research and technology organizations responsible for embedded and critical power systems, and directed technology strategy for critical power and data center infrastructure.
- From April 2022 to April 2025, Mr. Diemer served as Flex's Vice President of Technical Product Management for the automotive business, leading product strategy, strategic partnerships, pursuit engineering and portfolio growth.
- Prior to Flex, Mr. Diemer held a number of executive engineering and product leadership roles at BorgWarner from 2005 through 2022.
- Mr. Diemer has a Bachelor of Science and a Master of Science in mechanical engineering from Michigan Technological University.
- Mr. Diemer will receive the same compensation as the Company's other non-employee directors, as described in the Amendment No. 1 to the Company's Annual Report on Form 10-K filed with the U.S. Securities and Exchange Commission on April 30, 2026.
Reported
On April 23, 2026, the Company announced the appointment of Yi (Ray) Liu as Chief Financial Officer, effective April 27, 2026.
- Mr. Liu, 50, previously served as North America Chief Risk and Control Officer at Adyen, a global financial technology company, from January 2022 to April 2026.
- Prior to that, Mr. Liu spent over a decade in roles of increasing responsibility at Metlife Investment Management, including as Director, Enterprise Risk Management (Investment Risk & Governance from March 2019 to December 2021, as Chief of Staff/Head of Finance (International Investments) from July 2011 to March 2019 and as Director of Internal Audit (Investment & Finance) from July 2006 to July 2011.
- From July 2003 to July 2006, Mr. Liu served as Senior Auditor (Corporate Audit) at Emerson Electric Co. Mr. Liu earned his MBA, Finance and Investments from the University of Notre Dame, Mendoza College of Business and his B.S. in Accountancy at Shanghai University of Finance and Economics.
- Mr. Liu is a CFA Charterholder and a Certified Public Accountant licensed in New Jersey.
- It is expected that shortly after commencing employment with the Company, Mr. Liu will also enter into the Company's standard indemnification agreement pursuant to which the Company will indemnify him for certain actions taken in his capacity as Chief Financial Officer.
- Mr. Liu will succeed Jing Nealis, who will be stepping down as Chief Financial Officer effective April 27, 2026.
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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.