ASE Technology (ASX) falls 6.1% amid semiconductor pullback and recent insider sales

ASE Technology Holding Co., Ltd. (ASX) is down 6.1% today. Here is some analysis on what might have caused this price movement.

Analysis: ASX likely moved lower in sympathy with a broad selloff in semiconductor stocks as investors de-risked after a strong rally and rising yields pressured long-duration tech. Recent Form 4 filings showing sales tied to director Jeffrey Chen may have added an extra layer of caution around insider sentiment.

Details:

U.S. equities saw renewed profit-taking in technology, and semiconductor shares were among the day’s biggest drags as Treasury yields and oil prices rose, weighing on risk appetite.

Director Jeffrey Chen disclosed spouse-held open-market sales of 9,000 ordinary shares on each of April 13–15, 2026, at prices reported in New Taiwan dollars (NT$) in a Form 4 filing.

A separate Form 4 showed an additional spouse-held sale of 9,000 ordinary shares on April 24, 2026 (also reported in NT$), keeping insider-sale headlines in focus.

In the company’s recent quarterly reporting cycle, profitability drew attention after an earnings-per-share result that missed market expectations, even as revenue topped estimates.

Sources:

SEC (EDGAR), Investing.com, MarketScreener

Disclaimer: This price movement analysis was generated with the help of AI. Please double-check the information provided for mistakes.

$ASX Insider Trading Activity

$ASX insiders have traded $ASX stock on the open market 20 times in the past 6 months. Of those trades, 0 have been purchases and 20 have been sales.

Here’s a breakdown of recent trading of $ASX stock by insiders over the last 6 months:

TIEN-SZU CHEN (GM, ASE Inc. Chung-Li Branch) has made 0 purchases and 4 sales selling 530,000 shares for an estimated $247,136,997.
JEFFREY CHEN has made 0 purchases and 16 sales selling 144,000 shares for an estimated $65,735,970.

To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.

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$ASX Hedge Fund Activity

We have seen 195 institutional investors add shares of $ASX stock to their portfolio, and 162 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

SCHRODER INVESTMENT MANAGEMENT GROUP removed 6,175,124 shares (-85.2%) from their portfolio in Q1 2026, for an estimated $133,876,688
MORGAN STANLEY removed 3,879,379 shares (-36.6%) from their portfolio in Q1 2026, for an estimated $84,104,936
BLACKROCK, INC. added 2,726,484 shares (+14.0%) to their portfolio in Q1 2026, for an estimated $59,110,173
JANE STREET GROUP, LLC added 2,491,640 shares (+381.9%) to their portfolio in Q1 2026, for an estimated $54,018,755
LAZARD ASSET MANAGEMENT LLC added 1,997,888 shares (+11.1%) to their portfolio in Q4 2025, for an estimated $32,165,996
BANK OF AMERICA CORP /DE/ removed 1,936,538 shares (-22.1%) from their portfolio in Q1 2026, for an estimated $41,984,143
JONES FINANCIAL COMPANIES LLLP added 1,822,636 shares (+13172.2%) to their portfolio in Q1 2026, for an estimated $39,514,748

To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.

This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.