Director Chang Hung Pen filed a Form 4 with the SEC on September 24, 2026, disclosing the exercise of 300,000 stock options in ASE Technology Holding Co., Ltd. (NYSE:ASX) on September 22, 2026.

Key Highlights

  • Transaction: Chang Hung Pen acquired 300,000 Ordinary Shares on September 22, 2026, via an M-coded (option exercise) transaction.
  • Exercise Price: The option exercise price was NT$98.6, denominated in New Taiwan dollars, per the filing's footnote.
  • Post-Transaction Direct Ownership: Following the transaction, Chang directly holds 4,800,000 Ordinary Shares.
  • Indirect Holdings: Chang also holds 3,534,746 shares indirectly through Precious Eagles Limited and 120,640,482 shares indirectly through Billiant Capital Profits Limited.
  • Remaining Options: After the exercise, Chang retains 1,200,000 stock options (right to buy) expiring August 17, 2033.
  • Vesting Schedule: The options were granted August 18, 2023, and vest in seven semi-annual installments, with 40% vested on August 18, 2025, and 10% on February 18, 2026; remaining installments vest at 10% each through August 18, 2028.

Chang Hung Pen's Option Exercise and Beneficial Ownership at ASE Technology

According to the Form 4 filed on September 24, 2026, Chang Hung Pen, a director of ASE Technology Holding Co., Ltd. (NYSE:ASX), exercised 300,000 stock options on September 22, 2026, at an exercise price of NT$98.6 per the filing's footnote, which states that "the option exercise price reflects New Taiwan dollars." The transaction is coded M, indicating an exercise of employee stock options or similar derivative securities.

The filing discloses that the exercised options were originally granted on August 18, 2023, and are structured to vest in seven semi-annual installments. The filing states that 40% of the options vested on August 18, 2025, and 10% vested on February 18, 2026, with the remaining installments scheduled to vest at 10% each on August 18, 2026, February 18, 2027, August 18, 2027, February 18, 2028, and August 18, 2028. The options carry an expiration date of August 17, 2033.

Following the reported transaction, Chang Hung Pen's direct beneficial ownership stands at 4,800,000 Ordinary Shares, according to the filing. Additionally, the filing reports indirect ownership of 3,534,746 Ordinary Shares held through Precious Eagles Limited and 120,640,482 Ordinary Shares held through Billiant Capital Profits Limited. Chang retains 1,200,000 stock options directly following the exercise. The Form 4 was signed by Georgette Yeh as attorney-in-fact for Hung Pen Chang.

What Was Disclosed

The filing reports that ASE Technology director Chang Hung Pen exercised 300,000 stock options on September 22, 2026, at an exercise price denominated in New Taiwan dollars, resulting in direct ownership of 4,800,000 Ordinary Shares and 1,200,000 remaining options.