ASE Technology Holding Co., Ltd. officer Chen Tien-Szu filed a Form 4 on November 13, 2026, disclosing the exercise of stock options covering 300,000 Ordinary Shares on November 6, 2026.

Key Highlights

  • Reporting person: Chen Tien-Szu, GM of ASE Inc. Chung-Li Branch, filed as an officer of ASE Technology Holding Co., Ltd. (NYSE:ASX).
  • Transaction: Code M exercise of stock options for 300,000 Ordinary Shares on November 6, 2026.
  • Exercise price: $41.1, denominated in New Taiwan dollars, per the filing's footnote.
  • Options origin: The stock options were granted on November 23, 2018 and are described as fully vested and exercisable, with an expiration date of November 22, 2028.
  • Resulting ownership: Following the transaction, Chen Tien-Szu directly holds 2,851,821 Ordinary Shares, with zero derivative securities remaining beneficially owned.
  • Price of derivative security: The filing records the price of the derivative security as $0.

Chen Tien-Szu Option Exercise Details at ASE Technology

According to the Form 4 filed with the SEC, Chen Tien-Szu, identified as GM of ASE Inc. Chung-Li Branch and an officer of ASE Technology Holding Co., Ltd. (NYSE:ASX), reported a single transaction in Table I involving the acquisition of 300,000 Ordinary Shares via a transaction coded "M," indicating an exercise of derivative securities. The transaction date was November 6, 2026, and no deemed execution date was noted.

The filing discloses that the option exercise price of $41.1 reflects New Taiwan dollars, as stated in the explanation of responses. The corresponding Table II entry shows that the stock options, which carried a conversion or exercise price of $41.1 (New Taiwan dollars), were granted on November 23, 2018, and are described in the filing as "fully vested and exercisable." The options were set to expire on November 22, 2028. Following the exercise, the filing records zero stock options remaining beneficially owned by the reporting person.

After the reported transaction, Chen Tien-Szu's direct beneficial ownership of Ordinary Shares stands at 2,851,821, as reported in the filing. The Form 4 was signed by Georgette Yeh as attorney-in-fact for Tien-Szu Chen and filed on November 13, 2026. The filing was made by one reporting person and is not indicated as an amendment to a prior filing.

What Was Disclosed

The filing reports that Chen Tien-Szu exercised stock options for 300,000 Ordinary Shares of ASE Technology Holding Co., Ltd. on November 6, 2026, at an exercise price of $41.1 in New Taiwan dollars, resulting in direct beneficial ownership of 2,851,821 Ordinary Shares.