SES AI CTO Xu Kang Withholds 35,198 Shares for Taxes

What Happened Xu Kang, Chief Technology Officer of SES AI Corp (SES), had 35,198 shares withheld on September 1, 2026 to cover withholding tax obligations related to RSU vesting. The withholding was recorded at $0.52 per share, for a total value of $18,409. Per the filing, these shares were withheld to satisfy taxes and were not sold in the open market.

Key Details

• Transaction date and type: 2026-09-01 — tax withholding related to RSU vesting (transaction code F).
• Price and value: 35,198 shares at $0.52 per share; total $18,409.
• Shares owned after transaction: not specified in the provided excerpt; filing footnote notes 458,528 shares of Class A common stock are underlying RSUs that remain subject to forfeiture until they vest (see footnote F2).
• Footnotes: F1 clarifies shares were withheld to cover withholding tax and were not sold by the reporting person; F2 notes 458,528 RSU shares subject to forfeiture.
• Filing timeliness: Report filed 2026-09-03 for a 2026-09-01 transaction — appears to be filed within the typical two-business-day Form 4 window.

Context Tax-withholding via share retention is a routine administrative action when RSUs vest and does not represent an open-market sale or a directional bet by the insider. For retail investors, this type of transaction is informational (shows RSU vesting occurred) but generally should not be interpreted as a signal of confidence or concern about the company’s prospects.