ASE Technology Holding (ASX) stock: insider trades, news & valuation
Heavy selling
Close · Oct 9, 2026
$46.43
+2.6% on the day
+300.5% over 12 months
52-week range $10.97 – $47.53
Share price and insider trades
ASX closeInsider buyInsider sale
Bought, 12 months$0
Sold, 12 months$367M
Insiders buying0
Insiders selling3
ASE Technology Holding insider trading at a glance (Oct 9, 2026): in the past 12 months, 0 insiders bought $0 and 3 sold $367M of ASX stock on the open market.
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ASX insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | — | 0 |
| Q3 2026 | — | 0 | $7.6M | 4 |
| Q2 2026 | — | 0 | $360M | 34 |
Valuation, profit and volume
P/E (trailing)n/aSector median —
Market value—
Profit margin—Revenue growth —
Volume vs. 50-day0.7×Last 5 sessions
Insiders' paper profit—On all tracked purchases —
Summary
Over the past 12 months, 0 ASE Technology Holding Co., Ltd. insiders reported open-market purchases totaling $0, while 3 insiders reported sales totaling $367M. 0 of 38 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Jul 24SEC | Du-tsuen UangChief Administration Officer | Sell | 3,000751,000 held (−0%) | $665.00 | $2.0M | -93.0% | — |
| Jul 17SEC | Du-tsuen UangChief Administration Officer | Sell | 3,000754,000 held (−0%) | $688.00 | $2.1M | -93.3% | — |
| Jul 8SEC | Du-tsuen UangChief Administration Officer | Sell | 2,000757,000 held (−0%) | $687.00 | $1.4M | -93.2% | — |
| Jul 2SEC | Du-tsuen UangChief Administration Officer | Sell | 3,000759,000 held (−0%) | $709.00 | $2.1M | -93.5% | — |
| Jul 2SEC | Du-tsuen UangChief Administration Officer | Sell | 3,000764,000 held (−0%) | $664.00 | $2.0M | -93.0% | — |
| Jul 2SEC | Du-tsuen UangChief Administration Officer | Sell | 2,000762,000 held (−0%) | $687.00 | $1.4M | -93.2% | — |
| Jun 23SEC | Du-tsuen UangChief Administration Officer | Sell | 5,000770,000 held (−1%) | $667.00 | $3.3M | -93.0% | — |
| Jun 23SEC | Du-tsuen UangChief Administration Officer | Sell | 3,000767,000 held (−0%) | $697.00 | $2.1M | -93.3% | — |
| Jun 23SEC | Du-tsuen UangChief Administration Officer | Sell | 3,000775,000 held (−0%) | $611.00 | $1.8M | -92.4% | — |
| Jun 3SEC | Du-tsuen UangChief Administration Officer | Sell | 5,000778,000 held (−1%) | $617.00 | $3.1M | -92.5% | — |
| Jun 3SEC | Du-tsuen UangChief Administration Officer | Sell | 5,000783,000 held (−1%) | $607.00 | $3.0M | -92.4% | — |
| May 27SEC | Jeffrey ChenDirector | Sell | 9,0002,000 held (−82%) | $630.00 | $5.7M | -92.6% | — |
| May 27SEC | Jeffrey ChenDirector | Sell | 9,00011,000 held (−45%) | $590.00 | $5.3M | -92.1% | — |
| May 27SEC | Jeffrey ChenDirector | Sell | 9,00020,000 held (−31%) | $538.00 | $4.8M | -91.4% | — |
| May 27SEC | Jeffrey ChenDirector | Sell | 2,000 | $653.00 | $1.3M | -92.9% | — |
| May 21SEC | Jeffrey ChenDirector | Sell | 9,00029,000 held (−24%) | $505.00 | $4.5M | -90.8% | — |
| May 21SEC | Jeffrey ChenDirector | Sell | 9,00047,000 held (−16%) | $483.00 | $4.3M | -90.4% | — |
| May 21SEC | Jeffrey ChenDirector | Sell | 9,00038,000 held (−19%) | $477.00 | $4.3M | -90.3% | — |
| May 18SEC | Jeffrey ChenDirector | Sell | 9,00065,000 held (−12%) | $563.00 | $5.1M | -91.8% | — |
| May 18SEC | Jeffrey ChenDirector | Sell | 9,00074,000 held (−11%) | $560.00 | $5.0M | -91.7% | — |
| May 18SEC | Jeffrey ChenDirector | Sell | 9,00056,000 held (−14%) | $506.00 | $4.6M | -90.8% | — |
| Apr 28SEC | Jeffrey ChenDirector | Sell | 9,00083,000 held (−10%) | $473.00 | $4.3M | -90.2% | — |
| Apr 23SEC | Jeffrey ChenDirector | Sell | 9,00092,000 held (−9%) | $487.67 | $4.4M | -90.5% | — |
| Apr 23SEC | Jeffrey ChenDirector | Sell | 9,000101,000 held (−8%) | $466.50 | $4.2M | -90.0% | — |
| Apr 23SEC | Jeffrey ChenDirector | Sell | 9,000110,000 held (−8%) | $463.50 | $4.2M | -90.0% | — |
| Apr 22SEC | Tien-szu ChenGm, Ase Inc. Chung-Li Branch | Sell | 328,0002,453,821 held (−12%) | $465.11 | $153M | -90.0% | — |
| Apr 22SEC | Tien-szu ChenGm, Ase Inc. Chung-Li Branch | Sell | 80,0002,251,821 held (−3%) | $471.00 | $37.7M | -90.1% | — |
| Apr 22SEC | Tien-szu ChenGm, Ase Inc. Chung-Li Branch | Sell | 72,0002,381,821 held (−3%) | $466.00 | $33.6M | -90.0% | — |
| Apr 22SEC | Tien-szu ChenGm, Ase Inc. Chung-Li Branch | Sell | 50,0002,331,821 held (−2%) | $467.00 | $23.4M | -90.1% | — |
| Apr 20SEC | Jeffrey ChenDirector | Sell | 9,000119,000 held (−7%) | $461.50 | $4.2M | -89.9% | — |
| Apr 20SEC | Jeffrey ChenDirector | Sell | 9,000128,000 held (−7%) | $454.00 | $4.1M | -89.8% | — |
| Apr 20SEC | Jeffrey ChenDirector | Sell | 9,000137,000 held (−6%) | $446.00 | $4.0M | -89.6% | — |
| Apr 15SEC | Jeffrey ChenDirector | Sell | 9,000146,000 held (−6%) | $432.00 | $3.9M | -89.3% | — |
| Apr 15SEC | Jeffrey ChenDirector | Sell | 9,000155,000 held (−5%) | $427.00 | $3.8M | -89.1% | — |
| Apr 15SEC | Jeffrey ChenDirector | Sell | 9,000164,000 held (−5%) | $408.33 | $3.7M | -88.6% | — |
| Apr 10SEC | Jeffrey ChenDirector | Sell | 9,000182,000 held (−5%) | $388.00 | $3.5M | -88.0% | — |
| Apr 10SEC | Jeffrey ChenDirector | Sell | 9,000173,000 held (−5%) | $387.00 | $3.5M | -88.0% | — |
| Apr 10SEC | Jeffrey ChenDirector | Sell | 9,000191,000 held (−4%) | $380.50 | $3.4M | -87.8% | — |
Insiders at ASE Technology Holding Co., Ltd.
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Tien-szu ChenGm, Ase Inc. Chung-Li Branch | — | $247M | Apr 22, 2026 | — |
| Jeffrey ChenDirector | — | $96.0M | May 27, 2026 | — |
| Du-tsuen UangChief Administration Officer | — | $24.3M | Jul 24, 2026 | — |
ASX stock: common questions
Are ASE Technology Holding Co., Ltd. insiders buying ASX stock?
In the past 12 months, 0 insiders reported open-market purchases of ASX worth $0.
Are ASE Technology Holding Co., Ltd. insiders selling ASX stock?
3 insiders reported sales worth $367M over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is ASX's 52-week range?
Over the past year ASX has traded between $10.97 and $47.53. It last closed at $46.43 on Oct 9, 2026.