SES AI Corp — Earnings Release 2026

Apr 1, 2026

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): April 1, 2026

SES AI CORPORATION

(Exact name of registrant as specified in its charter)

​	​	​	​	​
Delaware	​ ​ ​	001-39845	​ ​ ​	88-0641865
(State or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer Identification No.)

SES AI Corporation

35 Cabot Road

Woburn , MA 01801

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: ( 339 ) 298-8750

N/A

(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 (see General Instruction A.2. below):

​	​
☐	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
Class A common stock, $0.0001 par value per share		SES		The New York Stock Exchange
Warrants, each exercisable for one share of Class A common stock at an exercise price of $11.50 per share		SES WS		The 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 April 1, 2026, SES AI Corporation (the “Company”) issued a press release, attached as Exhibit 99.1, and incorporated herein by reference, providing preliminary unaudited revenue results for the first quarter ended March 31, 2026.

The financial information presented in the press release is preliminary, estimated, and unaudited. Such amounts are subject to the completion and finalization of the Company’s financial and accounting closing procedures, including its audit. They reflect management’s estimates based solely upon information available to management as of the date of the press release. Further information learned during the completion and finalization of such financial and accounting closing procedures may alter the final results. In addition, the preliminary estimates should not be viewed a substitute for full financial statements prepared in accordance with GAAP.

The information contained in this Item 2.02 and in the accompanying Exhibit 99.1 shall not be deemed “filed” for 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, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, unless expressly incorporated by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.	Description
99.1	Press release dated April 1, 2026
104	Cover Page Interactive Data File (embedded within the Inline XBRL document)

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 thereunto duly authorized.

​	​	​
​	SES AI Corporation
​	​	​
Date: April 1, 2026	By:	/s/ Jing Nealis
​	Name:	Jing Nealis
​	Title:	Chief Financial Officer