Every Form 4 that SES AI Corporation (SES) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow SES and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full SES filings page.
SES AI Corp director Paul Diemer received an award of 320,000 RSUs tied to Class A common stock on October 5, 2026, under the issuer’s 2021 Incentive Award Plan. The RSUs vest in full on the first anniversary of the grant date, with an equal number of shares deliverable then, subject to continued service through that date. His reported direct position following the award was 320,000 shares underlying RSUs, which are subject to forfeiture until vesting.
SES AI Corp executive Kang Xu, Chief Technology Officer, reported a Form 4 transaction involving 35,198 shares of Class A Common Stock on September 1, 2026. These shares were withheld to cover tax obligations upon vesting of restricted stock units and were not sold. After this withholding, Xu directly holds 766,437 shares, including 458,528 shares underlying unvested restricted stock units that remain subject to forfeiture until they vest.
SES AI Corp's Chief Legal Officer Kyle Pilkington reported an open-market sale of 25,000 shares of Class A Common Stock at a weighted average price of $1.2003 per share. The transaction was executed on May 22, 2026 pursuant to a pre-arranged Rule 10b5-1 trading plan entered into on November 12, 2025.
Following this sale, Pilkington directly holds 1,023,548 shares of Class A Common Stock. This figure includes 733,646 shares underlying restricted stock units (RSUs) that remain subject to forfeiture until they vest.
Liu Yi Ray reported acquisition or exercise transactions in this Form 4 filing.
SES AI Corp reported a compensation-related stock grant to its Chief Financial Officer, Liu Yi Ray. On May 18, 2026, he was awarded 331,858 shares of Class A common stock underlying restricted stock units at a grant price of $0.00 per share. These RSUs vest in three equal installments on the first, second and third anniversaries of the grant date, conditioned on continued employment or service. All 331,858 shares are shown as directly owned after the transaction but remain subject to forfeiture until they vest.
SES AI Corp chief legal officer Kyle Pilkington reported an acquisition of 353,982 shares of Class A Common Stock through a grant of restricted stock units (RSUs) on May 18, 2026 under the company’s 2021 Incentive Award Plan.
The RSUs vest in three equal installments on the first, second and third anniversaries of the grant date, contingent on continued employment or service. Following this grant, Pilkington directly holds 1,048,548 shares of Class A Common Stock, including 733,646 shares underlying RSUs that remain subject to forfeiture until they vest.
SES AI Corp reported that Chief Technology Officer Xu Kang acquired 221,239 shares of Class A Common Stock through a grant of restricted stock units on May 18, 2026 under the company’s 2021 Incentive Award Plan. The RSUs were granted at a price of $0.00 per share.
The RSUs will vest, and an equal number of shares will be delivered, in three equal installments on the first, second and third anniversaries of the grant date, subject to continued employment or service. Following this award, Xu Kang directly holds 801,635 shares of Class A Common Stock, including 537,894 shares underlying RSUs that remain subject to forfeiture until they vest.
Hu Qichao reported acquisition or exercise transactions in this Form 4 filing.
SES AI Corp CEO and Chairman Hu Qichao received a large equity award in the form of restricted stock units. On May 18, 2026, he was granted 1,504,425 RSUs tied to Class A common stock at no cash purchase price, as part of the company’s 2021 Incentive Award Plan.
The RSUs vest in three equal installments on the first, second, and third anniversaries of the grant date, subject to continued employment or service. After this grant, Hu Qichao holds 5,449,607 shares of Class A common stock, including 3,497,664 shares underlying RSUs that remain subject to forfeiture until they vest.
Boyd Andrew J reported acquisition or exercise transactions in this Form 4 filing.
SES AI Corp director Andrew J. Boyd received a new equity award in the form of restricted stock units. He was granted 141,593 shares of Class A Common Stock at no purchase price, reflecting stock-based compensation rather than an open-market trade.
The RSUs were granted under SES AI Corp's 2021 Incentive Award Plan. They will vest in full on the first anniversary of the May 18, 2026 grant date, as long as Boyd continues his service through that date. After this grant, he holds 437,889 Class A shares directly.
Luo Eric reported acquisition or exercise transactions in this Form 4 filing.
SES AI Corp director Eric Luo received a grant of restricted stock units representing 141,593 shares of Class A Common Stock. The RSUs were granted at no cash cost to him under the company’s 2021 Incentive Award Plan.
The award will vest in full on the first anniversary of the May 18, 2026 grant date, provided he continues to serve through that vesting date. Following this grant, Luo beneficially owns 524,993 shares of Class A Common Stock directly, giving him a larger equity stake tied to the company’s future performance.
Ma Jiong reported acquisition or exercise transactions in this Form 4 filing.
SES AI Corp director Jiong Ma received a grant of 141,593 shares of Class A Common Stock in the form of restricted stock units (RSUs). The RSUs were granted on May 18, 2026 under the company’s 2021 Incentive Award Plan at a stated price of $0.00 per share.
The RSUs will vest in full on the first anniversary of the grant date, and an equal number of Class A shares will be delivered at that time, subject to Ms. Ma’s continued service. After this award, she directly holds 524,993 shares of Class A Common Stock.
SES AI Corp chief legal officer Kyle Pilkington reported a routine tax-withholding transaction tied to equity compensation. On this Form 4, 25,185 shares of Class A Common Stock were withheld at $1.10 per share to cover withholding tax obligations from vesting restricted stock units (RSUs); the footnote states these shares were not sold.
After the withholding, Pilkington directly holds 694,566 shares of Class A Common Stock, which include 379,664 shares underlying RSUs that remain subject to forfeiture until they vest. This event reflects compensation-related share withholding rather than an open-market sale.
SES AI Corp’s Chief Financial Officer, Nealis Jing, reported a routine tax-related share disposition. On this date, 36,145 shares of Class A Common Stock were withheld at $1.10 per share to cover withholding tax obligations tied to the vesting of restricted stock units, and these shares were not sold on the market.
After this withholding, Jing directly holds 2,305,943 shares of Class A Common Stock, including 836,871 shares underlying restricted stock units that remain subject to forfeiture until they vest.
SES AI Corp's Chief Science Officer Hong Gan reported a routine tax-related share disposition. On the vesting of restricted stock units, 32,138 shares of Class A Common Stock were withheld at $1.10 per share to cover withholding tax obligations; these shares were not sold in the market.
After this withholding, Gan directly holds 1,031,576 shares of Class A Common Stock, including 474,580 shares underlying restricted stock units that remain subject to forfeiture until they vest.
SES AI Corp CEO and Chairman Hu Qichao reported a tax-related share disposition tied to RSU vesting. On this Form 4, 133,303 shares of Class A Common Stock were withheld at $1.10 per share to cover withholding tax obligations when restricted stock units vested.
These shares were not sold on the market. After the withholding, Hu Qichao directly holds 3,945,182 shares of Class A Common Stock, including 1,993,239 shares underlying RSUs that remain subject to forfeiture until they vest.
SES AI Corp’s Chief Technology Officer, Kang Xu, reported a routine tax-related share disposition. On the vesting of restricted stock units, 39,593 shares of Class A common stock were withheld at $0.9873 per share to cover withholding tax obligations and were not sold on the market.
After this withholding, Xu directly holds 580,396 shares of Class A common stock, including 316,655 shares underlying unvested restricted stock units that remain subject to forfeiture until they vest.
SES AI Corp’s chief legal officer, Kyle Pilkington, reported a routine tax-related share disposition. On this Form 4, 60,452 shares of Class A Common Stock were withheld at $0.9873 per share to cover withholding tax obligations tied to vesting restricted stock units, and were not sold in the market.
After the withholding, Pilkington directly holds 719,751 Class A shares, including 435,453 shares underlying restricted stock units that remain subject to forfeiture until they vest.
SES AI Corp’s Chief Financial Officer, Nealis Jing, had shares withheld to cover taxes on vested RSUs. On this event, 163,968 shares of Class A Common Stock were withheld at $0.9873 per share to satisfy withholding tax obligations, and were not sold in the market.
After this tax-withholding disposition, Jing directly holds 2,342,088 shares of Class A Common Stock, including 906,607 shares underlying restricted stock units that remain subject to forfeiture until they vest.
SES AI Corp chief science officer Gan Hong had 74,682 shares of Class A Common Stock withheld on March 27, 2026 to cover withholding tax obligations from vesting restricted stock units. According to the filing, these shares were not sold on the market. After this tax-withholding disposition, Hong directly owned 1,063,714 shares, including 544,316 shares underlying restricted stock units that remain subject to forfeiture until they vest.
SES AI Corp CEO & Chairman Hu Qichao had 310,446 shares of Class A Common Stock withheld on March 27, 2026 to cover his withholding tax obligations from vesting restricted stock units. The shares were used for taxes and were not sold in the market.
After this tax-withholding disposition, Hu directly owns 4,078,485 shares of Class A Common Stock. This figure includes 2,272,184 shares underlying RSUs that remain subject to forfeiture until they vest.
SES AI Corp’s chief legal officer, Kyle Pilkington, reported an open-market sale of 25,000 shares of Class A Common Stock at $1.20 per share. After this transaction, he directly holds 780,203 shares, which the disclosure notes include 568,785 shares underlying RSUs that may be forfeited if they do not vest. The company states the sale was executed under a Rule 10b5-1 trading plan that Pilkington entered into on November 12, 2025, indicating the disposition was pre-planned rather than a discretionary market-timing decision.
SES AI Corp’s chief legal officer Kyle Pilkington reported an automatic share withholding related to restricted stock units. On 02/09/2026, 56,074 shares of Class A Common Stock were withheld at $1.99 per share to satisfy tax obligations when RSUs vested; these shares were not sold.
After this transaction, Pilkington beneficially owned 805,203 shares of Class A Common Stock, including 568,785 shares underlying RSUs that remain subject to forfeiture until they vest.
SES AI Corp’s chief financial officer, Nealis Jing, reported an automatic share withholding tied to equity compensation. On 02/09/2026, 110,231 shares of Class A Common Stock were withheld at $1.99 per share to cover tax obligations on vesting restricted stock units.
After this transaction, Jing beneficially owned 2,506,056 Class A shares in total, including 1,223,271 shares underlying restricted stock units that remain subject to forfeiture until they vest.
SES AI Corp’s chief science officer Gan Hong reported a routine tax-withholding transaction tied to vested stock awards. On 02/09/2026, 63,290 shares of Class A Common Stock were withheld at $1.99 per share to cover withholding taxes on restricted stock units and were not sold on the market.
After this transaction, Gan Hong beneficially owned 1,138,396 Class A shares, including 710,981 shares underlying restricted stock units that remain subject to forfeiture until they vest.
SES AI Corp CEO Hu Qichao reported a tax‑withholding share transaction related to equity compensation. On 02/09/2026, 267,934 shares of Class A Common Stock were withheld at $1.99 per share to satisfy withholding taxes upon vesting of restricted stock units. These shares were not sold on the market. After this withholding, Hu Qichao beneficially owned 4,388,931 Class A shares, including 2,972,177 shares underlying unvested RSUs that remain subject to forfeiture until they vest.
SES AI Corp’s chief technology officer, Xu Kang, reported a routine tax-related share withholding. On February 6, 2026, 35,063 shares of Class A common stock at $1.88 per share were withheld to cover taxes due on vesting restricted stock units and were not sold on the market.
After this transaction, Xu Kang beneficially owned 619,989 Class A shares, including 399,988 shares underlying unvested restricted stock units that remain subject to forfeiture until they vest.
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 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.