Welcome to our dedicated page for SES AI SEC filings (Ticker: SES), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
SES AI Corporation filings document the public-company disclosures of a Delaware battery technology issuer with Class A common stock and warrants listed on the New York Stock Exchange. Recent 8-K filings furnish shareholder letters, quarterly and annual financial results, preliminary unaudited revenue updates, Regulation FD presentation materials and material-event reports tied to the company's operating updates.
The filing record also covers governance and capital-structure matters, including officer and director changes, annual meeting vote results, definitive proxy disclosures, executive compensation information and voting rights for Class A and Class B common stock. These documents provide formal disclosure around SES AI's battery, ESS, drone, materials and Molecular Universe activities, along with related corporate governance subjects.
SES AI Corp’s chief science officer, Gan Hong, reported option exercises and share sales in January 2026 under a pre-arranged Rule 10b5-1 trading plan entered into on August 14, 2025.
On January 22 and 23, 2026, he exercised a total of 250,000 stock options with a $0.16 exercise price, receiving the same number of Class A common shares. Over those two days he then sold 250,000 Class A shares in market transactions at weighted-average prices of $2.4959 and $2.5032, respectively.
After these transactions, he directly holds 1,253,286 Class A shares, which include 852,222 shares underlying restricted stock units that may be forfeited if they do not vest. He also continues to hold 929,832 stock options with a $0.16 exercise price that are fully vested and expire on February 9, 2031.
SES insider Hong Gan has filed a notice of intent to sell common stock. The filing covers the planned sale of 250,000 common shares through Morgan Stanley Smith Barney LLC on the NYSE, with an aggregate market value of 590,000.00. These shares were acquired on 01/22/2026 by exercising stock options for cash on the same date. The filing notes that 321,190,509 common shares were outstanding. During the prior three months, sales under a Rule 10b5-1 plan for Hong Gan included 100,000 common shares on 12/15/2025 for gross proceeds of 197,893.28 and 150,000 common shares on 11/17/2025 for gross proceeds of 285,225.00. The signer represents that there is no undisclosed material adverse information about SES.
Tianqi Lithium HK Co., Ltd. and Tianqi Lithium Corporation report significant ownership in SES AI Corp. They disclose beneficial ownership of 24,922,386 shares of SES AI’s Class A common stock, representing 7.8% of the class. This total consists of 22,140,256 existing shares plus 2,782,130 additional Class A shares that will be issued to Tianqi if SES AI’s share price reaches at least $18.00 during a specified earn-out period starting one year after the business combination closing and ending five years after that closing.
The ownership percentage is calculated using 321,190,509 Class A shares outstanding as of November 10, 2025, as reported by SES AI. Tianqi Lithium HK Co., Ltd. is wholly owned by Chengdu Tianqi Lithium Limited, which in turn is wholly owned by Tianqi Lithium Corporation, so the parent company is also deemed to beneficially own the same 7.8% stake.
SES AI Corporation filed a current report to disclose that it will participate in the Needham Growth Conference on January 16, 2026. The company is using this event to present an updated slide presentation about its business, which is furnished as Exhibit 99.1 to the report. The materials are provided under Regulation FD as “furnished,” meaning they are not treated as formally filed financial statements and are not automatically incorporated into other securities law filings unless specifically referenced.
SES AI Corp's Chief Science Officer reported exercising stock options and selling shares of Class A Common Stock. On 12/15/2025, the officer exercised options for 93,277 shares at $0.15 and 6,723 shares at $0.16, then sold 100,000 shares at a weighted average price of $1.9789.
After these transactions, the officer beneficially owns 1,253,286 shares of SES Class A Common Stock, including 852,222 shares underlying restricted stock units that remain subject to forfeiture until they vest. The activity was carried out under a Rule 10b5-1 trading plan entered into on August 14, 2025.
SES AI Corp (SES) reported an insider stock transaction by its Chief Science Officer on a Form 4. On 11/17/2025, the officer exercised 150,000 stock options for Class A Common Stock at an exercise price of $0.15 per share, then sold 150,000 shares of Class A Common Stock at a weighted average price of $1.9015 per share, all pursuant to a Rule 10b5-1 trading plan entered into on August 14, 2025. Following these transactions, the officer beneficially owns 1,253,286 shares of Class A Common Stock, including 852,222 shares underlying restricted stock units that remain subject to forfeiture until they vest, and holds 93,277 derivative securities in the form of vested stock options.
SES filed a notice of proposed sale of restricted or control securities under Rule 144. The filing covers a planned sale of 250,000 shares of common stock through broker Morgan Stanley Smith Barney LLC on the NYSE. Based on the filing, the aggregate market value of the shares to be sold is $497,500, compared with 321,190,509 shares outstanding of the same class.
The seller acquired these 250,000 shares on 11/17/2025 by exercising stock options granted by the issuer and paid the exercise price in cash. By signing the notice, the seller represents that they are not aware of any material adverse, nonpublic information about SES’s current or future operations.
SES AI Corporation (SES) reported Q3 2025 results showing its first material revenue and a new ESS footprint from an acquisition. Revenue reached $7.1 million, producing gross profit of $3.6 million and a 51% gross margin. The company recorded a net loss of $20.9 million, or $0.06 per share. For the first nine months of 2025, revenue was $16.4 million with a 66% gross margin and a net loss of $56.0 million.
Operating expenses fell year over year in Q3 as research and development declined 36% to $15.6 million and general and administrative fell 32% to $6.7 million. Cash and cash equivalents were $35.3 million and short‑term investments were $178.7 million as of September 30, 2025.
SES closed the acquisition of China-based UZ Energy on September 15, 2025. Purchase consideration was valued at $11.7 million, including $3.3 million of cash expected to be paid in Q4 2025 and $8.4 million of deferred cash payments tied to performance; goodwill recorded was $12.6 million. Q3 revenue included $3.9 million from services and $3.2 million from products. Revenue was 98% outside the U.S., with one customer at 51% of Q3 revenue and a second at 35%.
SES AI Corporation received an amended Schedule 13G filing showing that Temasek Holdings (Private) Limited and affiliates reported beneficial ownership of 3,160,712 shares of Class A common stock, representing 1.0% of the class. The percentage is based on 320,896,206 Class A shares outstanding as of August 25, 2025.
The total includes 2,595,854 Earnout Shares that may be acquired upon achieving specified stock price performance targets under the Business Combination Agreement. Prior to vesting, Anderson Investments Pte. Ltd. has power to vote, but not dispose of, these Earnout Shares. Reported voting powers are shared (Temasek: 3,160,712; Tembusu/Thomson/Anderson: 2,595,854) with no sole or shared dispositive power.
The filing is a joint submission by Temasek, Tembusu Capital, Thomson Capital, and Anderson Investments. The signatories certified the holdings were not acquired to change or influence control.
SES AI Corporation reported a Board change. Dr. Jang Wook Choi notified the company on November 6, 2025 of his intention to resign from the Board of Directors, effective November 10, 2025, due to personal reasons.
The company stated that his resignation is not the result of any disagreement with management, the board, operations, policies, or practices. This is an administrative governance update disclosed via Form 8-K.