Every Form 4 that ASE Technology (ASX) 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 ASX 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 ASX filings page.
ASE Technology Holding Co., Ltd. (symbol: ASX) is the issuer of record for a Form 4 filing submitted to the SEC. Tsai Chi-Wen reported acquisition or exercise transactions in this Form 4 filing.
ASE Technology Holding Co., Ltd. (ASX) reported that Tsai Chi-Wen, Chairman & President of SPIL, received a grant or award of 334,000 Ordinary Shares on September 7, 2026. The award was at a reported price of $0.00 per share and increased Tsai’s direct holdings to 15,598,000 Ordinary Shares.
The filing indicates no Rule 10b5-1 trading plan for this transaction, suggesting it was not executed under a pre-arranged plan.
ASE Technology Holding Co., Ltd. (symbol: ASX) is the issuer of record for a Form 4 filing submitted to the SEC. Chung Chih-Hsiao reported acquisition or exercise transactions in this Form 4 filing.
ASE Technology Holding Co., Ltd. (ASX) reported that Chung Chih-Hsiao, GM, ASE Japan & Wuxi Tongzhi, received a grant or award of 30,000 Ordinary Shares on September 7, 2026. The award was reported at a price of $0.00 per share, bringing his directly held stake to 425,000 Ordinary Shares.
ASE Technology Holding Co., Ltd. (symbol: ASX) is the issuer of record for a Form 4 filing submitted to the SEC. Hsiang Kenneth reported acquisition or exercise transactions in this Form 4 filing.
ASE Technology Holding Co., Ltd. (ASX) reported that Hsiang Kenneth, CEO of subsidiary ISE Labs, received a grant of 40,000 Ordinary Shares on September 7, 2026, as a compensation-related award at no cash cost. Following this grant, he directly holds 109,000 Ordinary Shares of ASE Technology Holding Co., Ltd. No Rule 10b5-1 trading plan is reported for this transaction.
ASE Technology Holding Co., Ltd. (symbol: ASX) is the issuer of record for a Form 4 filing submitted to the SEC. Lin Chung reported acquisition or exercise transactions in this Form 4 filing.
ASE Technology Holding Co., Ltd. (ASX) reported that officer Lin Chung, GM of ASE Shanghai & Electronics, received a grant or award of 30,000 Ordinary Shares on September 7, 2026, at a stated price of $0.00 per share, increasing directly held ownership to 170,278 Ordinary Shares. No Rule 10b5-1 trading plan is reported for this award.
ASE Technology Holding Co., Ltd. (symbol: ASX) is the issuer of record for a Form 4 filing submitted to the SEC.
ASE Technology Holding Co., Ltd. (symbol: ASX) is the issuer of record for a Form 4 filing submitted to the SEC. Kuo Hung-Ming reported acquisition or exercise transactions in this Form 4 filing.
ASE Technology Holding Co., Ltd. (ASX) reported that Principal Accounting Officer Kuo Hung-Ming received a grant of 50,000 Ordinary Shares on September 7, 2026 at a stated price of $0.00 per share, indicating a compensation-related award rather than a market purchase.
After this grant, Kuo Hung-Ming directly holds 985,500 Ordinary Shares of ASE Technology Holding Co., Ltd. No transactions in this report are stated to have been made under a Rule 10b5-1 trading plan.
ASE Technology Holding Co., Ltd. (symbol: ASX) is the issuer of record for a Form 4 filing submitted to the SEC. Uang Du-Tsuen reported acquisition or exercise transactions in this Form 4 filing.
ASE Technology Holding Co., Ltd. (ASX) reported that Chief Administration Officer Uang Du-Tsuen received a grant of 90,000 Ordinary Shares on September 7, 2026, at no per-share cost. Following this award, the officer directly holds 841,000 Ordinary Shares. No Rule 10b5-1 trading plan is reported for this transaction.
ASE Technology Holding Co., Ltd. (symbol: ASX) is the issuer of record for a Form 4 filing submitted to the SEC. Tung Hung-Szu reported acquisition or exercise transactions in this Form 4 filing.
ASE Technology Holding Co., Ltd. (ASX) reported that Chief Financial Officer Tung Hung-Szu received a grant of 400,000 Ordinary Shares on September 7, 2026, at no purchase price. Following this award, he directly holds 4,202,954 Ordinary Shares and has an additional 312,457 shares reported as indirectly owned by his spouse, for which he disclaims beneficial ownership except to the extent of any pecuniary interest. No Rule 10b5-1 trading plan is reported.
ASE Technology Holding Co., Ltd. (symbol: ASX) is the issuer of record for a Form 4 filing submitted to the SEC. Tang Andrew R reported acquisition or exercise transactions in this Form 4 filing.
ASE Technology Holding Co., Ltd. (ASX) director Andrew R. Tang received a grant or award of 85,000 Ordinary Shares on September 7, 2026, at a reported price of $0.00 per share, consistent with a compensation-related share award. Following this award, he directly holds 310,000 Ordinary Shares of ASE Technology Holding Co., Ltd. No Rule 10b5-1 trading plan is reported for this transaction.
ASE Technology Holding Co., Ltd. (symbol: ASX) is the issuer of record for a Form 4 filing submitted to the SEC. Chen Tien-Szu reported acquisition or exercise transactions in this Form 4 filing.
ASE Technology Holding Co., Ltd. (ASX) reported that Chen Tien-Szu, GM of ASE Inc. Chung-Li Branch, received a grant of 300,000 ordinary shares on September 7, 2026. The shares were awarded at no per-share cost, bringing this officer’s directly held stake to 2,551,821 ordinary shares.
ASE Technology Holding Co., Ltd. (ASX) reported that director Wu Tien-Yue received a grant or award of 600,000 Ordinary Shares on September 7, 2026. The shares were acquired at a stated price of $0.00 per share, bringing Wu's direct holdings to 8,277,473 Ordinary Shares. No Rule 10b5-1 trading plan is reported for this transaction.
ASE Technology Holding Co., Ltd. (ASX) director Jeffrey Chen reported equity-related changes on September 7, 2026. He received a grant or award of 300,000 Ordinary Shares at a reported price of $0.0000 per share, and there was a bona fide gift transfer of 600,000 Ordinary Shares from his direct holdings to his spouse, now reported as indirect ownership of 600,000 Ordinary Shares. The filing states that the reporting person disclaims beneficial ownership of indirectly held shares except to the extent of his pecuniary interest, if any, and no Rule 10b5-1 trading plan is reported.
ASE Technology Holding Co., Ltd. (ASX) reported that officer Chung Chih-Hsiao, GM, ASE Japan & Wuxi Tongzhi, exercised employee stock options and received Ordinary Shares. On 2026-08-12 and 2026-08-13, he exercised options for a total of 365,000 Ordinary Shares (292,000 plus 73,000) at an exercise price of 41.1000 per share, with the price reflecting New Taiwan dollars. The options were originally granted on November 23, 2018 and were fully vested and exercisable at the time of exercise. The Form 4 does not report any market sales in connection with these exercises, and the Rule 10b5-1 checkbox is not marked.
ASE Technology Holding Co., Ltd. reported that Lin Chung, GM of ASE Shanghai & Electronics, exercised stock options covering 35,000 Ordinary Shares on July 29, 2026. The activity reflects options granted in 2018, which are fully vested, and 2023 options vesting in seven semi-annual installments through August 2028, with exercise prices stated in New Taiwan dollars.
ASE Technology Holding Co., Ltd. executive Uang Du‑Tsuen, Chief Administration Officer, sold 3,000 Ordinary Shares on July 22, 2026 at NT$665 per share in an open-market or private transaction. After this sale, Uang directly holds 751,000 Ordinary Shares.
ASE Technology Holding Co., Ltd. Chief Administration Officer Uang Du-Tsuen reported a sale of 3,000 Ordinary Shares on July 15, 2026 at 688 New Taiwan Dollars per share, leaving 754,000 Ordinary Shares held directly after the transaction.
ASE Technology Holding Co., Ltd. director Chang Hung Pen reported on July 13, 2026 exercising stock options to acquire 3,000,000 Ordinary Shares at an exercise price of 41.1000 and 1,500,000 shares at 98.6, both in New Taiwan dollars. After these transactions, he is shown holding 4,500,000 and 3,000,000 Ordinary Shares directly, plus indirect positions of 120,640,482 shares via Billiant Capital Profits Limited and 3,534,746 shares via Precious Eagles Limited. The filing also lists 1,500,000 stock options with a 98.6 exercise price expiring on August 17, 2033, and notes that this exercise price was reduced from 99.7 on July 11 due to a cash dividend distribution.
ASE Technology Holding Co., Ltd. Chief Administration Officer Du-Tsuen Uang reported an open-market sale of 2,000 Ordinary Shares on July 6, 2026. The shares were sold at NT$687.0000 per share. After this transaction, Uang directly holds 757,000 Ordinary Shares.
ASE Technology Holding Co., Ltd. Chief Administration Officer Uang Du-Tsuen reported open-market sales of a total of 8,000 Ordinary Shares. The sales occurred on June 30 and July 1, 2026 at prices of NT$664, NT$687, and NT$709 per share.
After these transactions, Uang Du-Tsuen directly holds 759,000 Ordinary Shares. The reported sales represent a small portion of the officer’s disclosed direct holdings and involve no derivative exercises in this filing.
ASE Technology Holding Co., Ltd. Chief Administration Officer Uang Du-Tsuen reported open-market sales of ordinary shares. Across three days, Uang sold a total of 11,000 shares at prices between 611 and 697 New Taiwan Dollars per share. After these transactions, Uang directly holds 767,000 ordinary shares, so the disposals represent a small portion of the reported position.
ASE Technology Holding Co., Ltd. executive Uang Du‑Tsuen reported open‑market sales of Ordinary Shares. On June 1, 2026 and June 3, 2026, he sold 5,000 shares each day at prices of NT$607 and NT$617 per share, respectively. After these sales, he directly holds 778,000 Ordinary Shares.
ASE Technology Holding Co., Ltd. director Jeffrey Chen reported a series of open-market sales of Ordinary Shares indirectly held through his spouse. Between May 22, 2026 and May 27, 2026, the spouse sold a total of 29,000 shares at prices ranging from NT$538 to NT$653 per share, reducing indirect holdings to zero after the final transaction. A separate entry on May 22, 2026 shows Chen directly holding 2,383,000 Ordinary Shares. A footnote states that Chen disclaims beneficial ownership of the reported securities except to the extent of any pecuniary interest.
ASE Technology Holding Co., Ltd. director Jeffrey Chen reported a series of indirect open-market sales of Ordinary Shares held by his spouse. Over three days, entities associated with him sold 27,000 shares at prices in New Taiwan Dollars, including 9,000 shares at NT$483, 9,000 at NT$477, and 9,000 at NT$505 per share. Following the last sale, his spouse’s indirect holdings stood at 29,000 Ordinary Shares, while a separate entry shows Chen with 2,383,000 Ordinary Shares held directly. Chen disclaims beneficial ownership of the reported securities except to the extent of any pecuniary interest.
ASE Technology Holding Co., Ltd. director Jeffrey Chen reported open-market sales of a total of 27,000 Ordinary Shares indirectly held through his spouse. The sales occurred on May 14, May 15 and May 18 at prices between NT$506.0000 and NT$563.0000 per share. After these transactions, he continues to hold 56,000 Ordinary Shares indirectly through his spouse and 2,383,000 Ordinary Shares directly. The filing notes that he disclaims beneficial ownership of the reported securities except to the extent of any pecuniary interest.
ASE Technology Holding Co., Ltd. director Jeffrey Chen reported insider activity involving the company’s Ordinary Shares. On April 24, 2026, an open-market sale of 9,000 Ordinary Shares was executed at NT$473 per share, from shares held indirectly by his spouse. After this transaction, 83,000 Ordinary Shares remained under indirect ownership by his spouse, while a separate entry shows 2,383,000 Ordinary Shares held directly following a holding line dated the same day. A footnote states that the reporting person disclaims beneficial ownership of the reported securities except to the extent of any pecuniary interest.
ASE Technology Holding Co., Ltd. director Jeffrey Chen reported indirect open-market sales of the company’s Ordinary Shares held by his spouse. Across three transactions on April 21–23, 2026, a total of 27,000 shares were sold at prices between NT$463.5000 and NT$487.6667 per share. Following these sales, indirect holdings stood at 92,000 Ordinary Shares, while a separate direct holding entry shows 2,383,000 Ordinary Shares as of April 21, 2026. A footnote states the reporting person disclaims beneficial ownership except to the extent of any pecuniary interest.
ASE Technology Holding Co., Ltd. GM of the ASE Inc. Chung-Li Branch, Chen Tien-Szu, reported open-market sales of a total of 530,000 Ordinary Shares on April 20, 2026. The shares were sold in several trades at prices including 471, 467, and 466 New Taiwan Dollars per share, with a large block at a weighted average of 465.1067 New Taiwan Dollars per share. After these sales, Chen continues to hold more than 2.25 million Ordinary Shares directly.
ASE Technology Holding Co., Ltd. director Jeffrey Chen reported that his spouse conducted open-market sales of a total of 27,000 Ordinary Shares, split into 9,000-share trades on three dates at prices between 446 and 461.5 New Taiwan Dollars per share. These transactions are reported as indirect ownership "By Spouse," with 119,000 indirectly held Ordinary Shares remaining afterward. Chen also reports direct ownership of 2,383,000 Ordinary Shares as of April 16, 2026, and disclaims beneficial ownership of the reported securities except to the extent of any pecuniary interest.
ASE Technology Holding Co., Ltd. director Jeffrey Chen reported a series of indirect open-market sales in the company’s ordinary shares made by his spouse. Over three days, a total of 27,000 ordinary shares were sold at prices between NT$408.33 and NT$432.00 per share.
Following these transactions, 146,000 ordinary shares are reported as held indirectly by his spouse, while a separate holding entry shows 2,383,000 ordinary shares held directly. A footnote states that Chen disclaims beneficial ownership of the reported securities except to the extent of any pecuniary interest.
ASE Technology Holding Co., Ltd. director Chang Chien Shen exercised stock options to acquire 4,500,000 Ordinary Shares on April 9, 2026. He exercised 3,000,000 options at NT$41.10 per share and 1,500,000 options at NT$99.70 per share, converting derivative awards into shares.
Following these exercises, he held 6,247,647 Ordinary Shares directly. The filing also shows indirect holdings of 684,327,886 Ordinary Shares through ASE Enterprises Limited and 265,024,820 Ordinary Shares through Value Tower Ltd., indicating a substantial overall position associated with the director.
ASE Technology Holding Co., Ltd. director Jeffrey Chen reported three open-market sales of Ordinary Shares indirectly held through his spouse. On April 8–10, 2026, a total of 27,000 shares were sold at prices between NT$380.5 and NT$388 per share.
After these transactions, Chen reports 173,000 Ordinary Shares indirectly held by his spouse and a separate 2,383,000 Ordinary Shares held directly. A footnote states that he disclaims beneficial ownership of the reported securities except to the extent of any pecuniary interest.