ASXNYSESemiconductors & Related DevicesFiscal year ends December 31
ASE Technology Holding Co., Ltd.
Financials through fiscal 2025, year ended Dec 31, 2025Last filing: 20-F on Apr 1, 2026
$40.80+1.27 (+3.21%)
Close on Oct 19, 2026
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
3.4%
153M of 4.45B shares
Institutional holders
485
156 new, 35 sold out
Net institutional buying
-4M
In Q2 2026
Insider trades, 12 months
0 buys · 38 sales
Net sold $367.49M
Shares held by institutions
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of ASX | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 26,255,012 | 0.59% | $1.18B | +4,067,548 | 0.02% |
| Bank Of America Corp /De/ | 9,387,504 | 0.21% | $423.56M | +2,554,124 | 0.03% |
| Goldman Sachs Group Inc | 8,300,320 | 0.19% | $374.51M | +2,455,169 | 0.03% |
| Lazard Asset Management LLC | 7,970,225 | 0.18% | $359.62M | −5,559,908 | 0.54% |
| UBS Group AG | 7,787,150 | 0.18% | $351.36M | −1,496,615 | 0.04% |
| Morgan Stanley | 5,796,296 | 0.13% | $261.53M | −931,913 | 0.01% |
| Rafferty Asset Management, LLC | 5,521,348 | 0.12% | $249.12M | +1,941,218 | 0.57% |
| American Century Companies Inc | 5,332,790 | 0.12% | $240.62M | −494,623 | 0.11% |
| JPMorgan Chase & Co | 5,309,786 | 0.12% | $223.70M | +2,662,590 | 0.01% |
| Acadian Asset Management LLC | 4,916,882 | 0.11% | $221.83K | −2,453,552 | 0.26% |
| Fisher Asset Management, LLC | 4,402,301 | 0.10% | $198.63M | −402,782 | 0.06% |
| Citigroup Inc | 4,262,000 | 0.10% | $192.30M | +802,371 | 0.06% |
| Man Group plc | 3,856,454 | 0.09% | $174.00M | +3,505,899 | 0.28% |
| Barclays PLC | 3,489,880 | 0.08% | $157.46M | +118,090 | 0.03% |
| Cullen Capital Management, LLC | 2,090,788 | 0.05% | $94.34M | −1,920,711 | 0.93% |
| Creative Planning | 1,998,994 | 0.04% | $90.19M | +102,716 | 0.05% |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 1,796,967 | 0.04% | $81.08M | +1,219 | 0.06% |
| Dimensional Fund Advisors LP | 1,587,983 | 0.04% | $71.65M | +188,430 | 0.01% |
| Earnest Partners LLC | 1,434,870 | 0.03% | $64.74M | −292,574 | 0.23% |
| Envestnet Asset Management Inc | 1,412,399 | 0.03% | $63.73M | −586,515 | 0.02% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 485 | 153M | 3.4% | 156 / 150 | 139 / 35 | 29M | 32M |
| Q1 2026 | 372 | 157M | 3.5% | 85 / 130 | 116 / 25 | 27M | 31M |
| Q4 2025 | 317 | 163M | 3.7% | 57 / 132 | 91 / 34 | 21M | 24M |
| Q3 2025 | 303 | 167M | 3.8% | 59 / 135 | 78 / 32 | 23M | 25M |
| Q2 2025 | 280 | 169M | 3.8% | 44 / 125 | 78 / 48 | 34M | 42M |
| Q1 2025 | 291 | 177M | 4.0% | 45 / 100 | 113 / 38 | 24M | 14M |
| Q4 2024 | 288 | 167M | 3.8% | 52 / 108 | 100 / 37 | 21M | 16M |
| Q3 2024 | 279 | 162M | 3.6% | 36 / 101 | 119 / 35 | 38M | 24M |
| Q2 2024 | 281 | 163M | 3.7% | 37 / 94 | 112 / 31 | 12M | 26M |
| Q1 2024 | 278 | 178M | 4.0% | 41 / 105 | 92 / 24 | 37M | 14M |
| Q4 2023 | 265 | 155M | 3.5% | 42 / 78 | 113 / 30 | 17M | 22M |
| Q3 2023 | 258 | 161M | 3.6% | 29 / 97 | 88 / 29 | 10M | 16M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of ASX | Value | % of fund | As of |
|---|---|---|---|---|---|
| iShares Semiconductor ETF | 12,891,154 | 0.29% | $581.65M | 1.22% | Jun 30, 2026 |
| Direxion Daily Semiconductor Bull 3X Shares | 4,597,230 | 0.10% | $161.68M | 0.83% | Jul 31, 2026 |
| Avantis Emerging Markets Equity ETF | 4,440,239 | 0.10% | $170.28M | 0.65% | May 31, 2026 |
| YieldMax(R) Semiconductor Portfolio Option Income ETF | 1,098,762 | 0.02% | $38.64M | 3.78% | Jul 31, 2026 |
| Vanguard Global Minimum Volatility Fund | 775,085 | 0.02% | $27.26M | 1.35% | Jul 31, 2026 |
| Amplify CWP International Enhanced Dividend Income ETF | 642,392 | 0.01% | $28.98M | 2.25% | Jun 30, 2026 |
| Dimensional Emerging Core Equity Market ETF | 637,500 | 0.01% | $22.42M | 0.24% | Jul 31, 2026 |
| Avantis Emerging Markets Value ETF | 566,091 | 0.01% | $21.71M | 1.48% | May 31, 2026 |
| Dimensional Emerging Markets Value ETF | 374,602 | 0.01% | $13.17M | 0.66% | Jul 31, 2026 |
| iShares Flexible Equity Active ETF | 294,373 | 0.01% | $10.35M | 0.64% | Jul 31, 2026 |
| Fidelity Blue Chip Growth Fund | 276,800 | 0.01% | $9.74M | 0.01% | Jul 31, 2026 |
| Harbor International Core Fund | 268,012 | 0.01% | $9.43M | 0.40% | Jul 31, 2026 |
| Dimensional Emerging Markets Core Equity 2 ETF | 209,500 | 0.00% | $7.37M | 0.08% | Jul 31, 2026 |
| Praxis International Index Fund | 206,276 | 0.00% | $9.31M | 1.38% | Jun 30, 2026 |
| Vanguard International High Dividend Yield Index Fund | 188,067 | 0.00% | $6.61M | 0.03% | Jul 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Hung-Szu Tung | Chief Financial Officer | 4,515,411 | 0.10% | Sep 9, 2026 |
| Chung Lin | GM, ASE Shanghai & Electronics | 170,278 | 0.00% | Sep 9, 2026 |
| Du-Tsuen Uang | Chief Administration Officer | 841,000 | 0.02% | Sep 9, 2026 |
| Chih-Hsiao Chung | GM, ASE Japan & Wuxi Tongzhi | 425,000 | 0.01% | Sep 9, 2026 |
| Kenneth Hsiang | CEO, ISE Labs | 109,000 | 0.00% | Sep 9, 2026 |
| Hung-Ming Kuo | Principal Accounting Officer | 985,500 | 0.02% | Sep 9, 2026 |
| Tien-Szu Chen | GM, ASE Inc. Chung-Li Branch | 2,551,821 | 0.06% | Sep 9, 2026 |
| Raymond Lo | GM TW & Kaohsiung Pkg Facility | 4,383,430 | 0.10% | Sep 9, 2026 |
| Chi-Wen Tsai | Chairman & President, SPIL | 15,598,000 | 0.35% | Sep 9, 2026 |
| Sharon Mei Wan Ko | GM, ASE (PENANG) SDN. BHD. | – | – | Aug 10, 2026 |
| Kelvin Fook Lin Liu | GM, ASE Malaysia | – | – | Mar 18, 2026 |
| Dirk Wendt | GM, Hirschmann Mobility Hldg | – | – | Mar 18, 2026 |
| Chih-Wen Yu | GM, SPIL SuZhou | – | – | Mar 18, 2026 |
| Gichol Lee | GM, ASE Korea | – | – | Mar 18, 2026 |
| Nicolas Denis | CEO, Financiere AFG | – | – | Mar 18, 2026 |
| Hui-Min Liu | GM, USI Vietnam Co. Ltd | – | – | Mar 18, 2026 |
| Ta-I Lin | GM, UGT Kunshan & Huizhou | – | – | Mar 18, 2026 |
| Yean Peng Chen | GM, ASE Singapore Pte. Ltd | – | – | Mar 18, 2026 |
| Yee Voon Hew | GM, ASE Cheonan, Inc. | – | – | Mar 18, 2026 |
| Ying Pin Wu | GM, Asteelflash Suzhou Co. Ltd | – | – | Mar 18, 2026 |
| Tuck Weng Andrew Lee | GM, USI Mexico | – | – | Mar 18, 2026 |
| Kwai Mun Lee | President, ASE SE Asia Ops. | – | – | Mar 18, 2026 |
| Chen-Yen Wei | Chairman, USI Co., Ltd. | 366,115 | 0.01% | Mar 18, 2026 |
| Meng-Hui Lin | GM, UGT (Shanghai) Co., Ltd | 240,470 | 0.01% | Mar 18, 2026 |
| Hung Pen Chang | Director | 128,975,228 | 2.90% | Sep 24, 2026 |
| Tien-Yue Wu | Director | 8,277,473 | 0.19% | Sep 9, 2026 |
| Andrew R. Tang | Director | 310,000 | 0.01% | Sep 9, 2026 |
| Jeffrey Chen | Director | 2,683,000 | 0.06% | Sep 9, 2026 |
| Chien Shen Chang | Director | 955,600,353 | 21.49% | Apr 13, 2026 |
| Wen-Chyi Ong | Director | – | – | Mar 18, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Hung Pen Chang Director | Sep 22, 2026 | Option exercise | +300,000 | $98.60 | $29.58M | 4,800,000 |
| Du-Tsuen Uang Chief Administration Officer | Sep 7, 2026 | Award | +90,000 | – | – | 841,000 |
| Raymond Lo GM TW & Kaohsiung Pkg Facility | Sep 7, 2026 | Award | +400,000 | – | – | 4,383,430 |
| Chih-Hsiao Chung GM, ASE Japan & Wuxi Tongzhi | Sep 7, 2026 | Award | +30,000 | – | – | 425,000 |
| Kenneth Hsiang CEO, ISE Labs | Sep 7, 2026 | Award | +40,000 | – | – | 109,000 |
| Andrew R. Tang Director | Sep 7, 2026 | Award | +85,000 | – | – | 310,000 |
| Chung Lin GM, ASE Shanghai & Electronics | Sep 7, 2026 | Award | +30,000 | – | – | 170,278 |
| Jeffrey Chen Director | Sep 7, 2026 | Gift | −600,000 | – | – | 2,083,000 |
| Jeffrey Chen Director | Sep 7, 2026 | Award | +300,000 | – | – | 2,683,000 |
| Jeffrey Chen Director | Sep 7, 2026 | Gift | +600,000 | – | – | 600,000 |
| Hung-Szu Tung Chief Financial Officer | Sep 7, 2026 | Award | +400,000 | – | – | 4,202,954 |
| Chi-Wen Tsai Chairman & President, SPIL | Sep 7, 2026 | Award | +334,000 | – | – | 15,598,000 |
| Tien-Yue Wu Director | Sep 7, 2026 | Award | +600,000 | – | – | 8,277,473 |
| Tien-Szu Chen GM, ASE Inc. Chung-Li Branch | Sep 7, 2026 | Award | +300,000 | – | – | 2,551,821 |
| Hung-Ming Kuo Principal Accounting Officer | Sep 7, 2026 | Award | +50,000 | – | – | 985,500 |
| Chih-Hsiao Chung GM, ASE Japan & Wuxi Tongzhi | Aug 13, 2026 | Option exercise | +73,000 | $41.10 | $3.00M | 395,000 |
| Chih-Hsiao Chung GM, ASE Japan & Wuxi Tongzhi | Aug 12, 2026 | Option exercise | +292,000 | $41.10 | $12.00M | 322,000 |
| Chung Lin GM, ASE Shanghai & Electronics | Jul 29, 2026 | Option exercise | +25,000 | $41.10 | $1.03M | 130,278 |
| Chung Lin GM, ASE Shanghai & Electronics | Jul 29, 2026 | Option exercise | +10,000 | $98.60 | $986.00K | 140,278 |
| Du-Tsuen Uang Chief Administration Officer | Jul 22, 2026 | Sale | −3,000 | $665.00 | $2.00M | 751,000 |
| Du-Tsuen Uang Chief Administration Officer | Jul 15, 2026 | Sale | −3,000 | $688.00 | $2.06M | 754,000 |
| Hung Pen Chang Director | Jul 13, 2026 | Option exercise | +3,000,000 | $41.10 | $123.30M | 3,000,000 |
| Hung Pen Chang Director | Jul 13, 2026 | Option exercise | +1,500,000 | $98.60 | $147.90M | 4,500,000 |
| Du-Tsuen Uang Chief Administration Officer | Jul 6, 2026 | Sale | −2,000 | $687.00 | $1.37M | 757,000 |
| Du-Tsuen Uang Chief Administration Officer | Jul 1, 2026 | Sale | −3,000 | $709.00 | $2.13M | 759,000 |
| Du-Tsuen Uang Chief Administration Officer | Jun 30, 2026 | Sale | −2,000 | $687.00 | $1.37M | 762,000 |
| Du-Tsuen Uang Chief Administration Officer | Jun 30, 2026 | Sale | −3,000 | $664.00 | $1.99M | 764,000 |
| Du-Tsuen Uang Chief Administration Officer | Jun 23, 2026 | Sale | −3,000 | $697.00 | $2.09M | 767,000 |
| Du-Tsuen Uang Chief Administration Officer | Jun 22, 2026 | Sale | −5,000 | $667.00 | $3.34M | 770,000 |
| Du-Tsuen Uang Chief Administration Officer | Jun 18, 2026 | Sale | −3,000 | $611.00 | $1.83M | 775,000 |
| Du-Tsuen Uang Chief Administration Officer | Jun 3, 2026 | Sale | −5,000 | $617.00 | $3.09M | 778,000 |
| Du-Tsuen Uang Chief Administration Officer | Jun 1, 2026 | Sale | −5,000 | $607.00 | $3.04M | 783,000 |
| Jeffrey Chen Director | May 27, 2026 | Sale | −2,000 | $653.00 | $1.31M | 0 |
| Jeffrey Chen Director | May 26, 2026 | Sale | −9,000 | $630.00 | $5.67M | 2,000 |
| Jeffrey Chen Director | May 25, 2026 | Sale | −9,000 | $590.00 | $5.31M | 11,000 |
| Jeffrey Chen Director | May 22, 2026 | Sale | −9,000 | $538.00 | $4.84M | 20,000 |
| Jeffrey Chen Director | May 21, 2026 | Sale | −9,000 | $505.00 | $4.55M | 29,000 |
| Jeffrey Chen Director | May 20, 2026 | Sale | −9,000 | $477.00 | $4.29M | 38,000 |
| Jeffrey Chen Director | May 19, 2026 | Sale | −9,000 | $483.00 | $4.35M | 47,000 |
| Jeffrey Chen Director | May 18, 2026 | Sale | −9,000 | $506.00 | $4.55M | 56,000 |
| Jeffrey Chen Director | May 15, 2026 | Sale | −9,000 | $563.00 | $5.07M | 65,000 |
| Jeffrey Chen Director | May 14, 2026 | Sale | −9,000 | $560.00 | $5.04M | 74,000 |
| Jeffrey Chen Director | Apr 24, 2026 | Sale | −9,000 | $473.00 | $4.26M | 83,000 |
| Jeffrey Chen Director | Apr 23, 2026 | Sale | −9,000 | $487.67 | $4.39M | 92,000 |
| Jeffrey Chen Director | Apr 22, 2026 | Sale | −9,000 | $466.50 | $4.20M | 101,000 |
| Jeffrey Chen Director | Apr 21, 2026 | Sale | −9,000 | $463.50 | $4.17M | 110,000 |
| Tien-Szu Chen GM, ASE Inc. Chung-Li Branch | Apr 20, 2026 | Sale | −328,000 | $465.11 | $152.56M | 2,453,821 |
| Tien-Szu Chen GM, ASE Inc. Chung-Li Branch | Apr 20, 2026 | Sale | −72,000 | $466.00 | $33.55M | 2,381,821 |
| Tien-Szu Chen GM, ASE Inc. Chung-Li Branch | Apr 20, 2026 | Sale | −50,000 | $467.00 | $23.35M | 2,331,821 |
| Tien-Szu Chen GM, ASE Inc. Chung-Li Branch | Apr 20, 2026 | Sale | −80,000 | $471.00 | $37.68M | 2,251,821 |
| Jeffrey Chen Director | Apr 20, 2026 | Sale | −9,000 | $461.50 | $4.15M | 119,000 |
| Jeffrey Chen Director | Apr 17, 2026 | Sale | −9,000 | $454.00 | $4.09M | 128,000 |
| Jeffrey Chen Director | Apr 16, 2026 | Sale | −9,000 | $446.00 | $4.01M | 137,000 |
| Jeffrey Chen Director | Apr 15, 2026 | Sale | −9,000 | $432.00 | $3.89M | 146,000 |
| Jeffrey Chen Director | Apr 14, 2026 | Sale | −9,000 | $427.00 | $3.84M | 155,000 |
| Jeffrey Chen Director | Apr 13, 2026 | Sale | −9,000 | $408.33 | $3.67M | 164,000 |
| Jeffrey Chen Director | Apr 10, 2026 | Sale | −9,000 | $387.00 | $3.48M | 173,000 |
| Chien Shen Chang Director | Apr 9, 2026 | Option exercise | +1,500,000 | $99.70 | $149.55M | 6,247,647 |
| Chien Shen Chang Director | Apr 9, 2026 | Option exercise | +3,000,000 | $41.10 | $123.30M | 4,747,647 |
| Jeffrey Chen Director | Apr 9, 2026 | Sale | −9,000 | $388.00 | $3.49M | 182,000 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.