Public ownership evidence

ASE Technology Holding Co., Ltd. (ASX) Ownership Disclosures

Read ASX insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Separate the three disclosure sources

Step 1 of 3

Recent Form 4 activity

ASE Technology Holding Co., Ltd.: source evidence dated 2026-10-10T12:08:28.848Z.

Available
2026-09-09
Trade date
2026-09-07
Reporting owners
Tsai Chi-Wen
Code
A
Shares
334,000
Reported value
Not reported
What you should see

The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.

Step 2 of 3

Is this an insider transaction, 13F holding, or Congressional event?

Each source has different dates and units. Raw ticker-matched receipts, including amendments, are not deduplicated current ownership totals.

SEC 0000950103-26-013694
What you should see

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Step 3 of 3

Read ASX fundamentals

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Read ASX fundamentals
What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Recent Form 4 activity

See the complete recent form 4 activity

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2026-09-092026-09-07Tsai Chi-WenA334,000Not reported
2026-09-092026-09-07Chung Chih-HsiaoA30,000Not reported
2026-09-092026-09-07Hsiang KennethA40,000Not reported
2026-09-092026-09-07Lin ChungA30,000Not reported
2026-09-092026-09-07Lo RaymondA400,000Not reported
2026-09-092026-09-07Kuo Hung-MingA50,000Not reported
2026-09-092026-09-07Uang Du-TsuenA90,000Not reported
2026-09-092026-09-07Tung Hung-SzuA400,000Not reported
2026-09-092026-09-07Tang Andrew RA85,000Not reported
2026-09-092026-09-07Chen Tien-SzuA300,000Not reported
2026-09-092026-09-07Wu Tien-YueA600,000Not reported
2026-09-092026-09-07Chen JeffreyA300,000Not reported
2026-07-252026-07-22Uang Du-TsuenS3,000Not reported
2026-07-182026-07-15Uang Du-TsuenS3,000Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Cornerstone Financial Management LLC2026-06-302026-08-29660$29,779None
Cornerstone Financial Management LLC2026-03-312026-08-29462$10,016None
Cornerstone Financial Management LLC2025-12-312026-08-29420$6,762None
Advisors Asset Management, Inc.2021-12-312026-08-28153,389$1,197,968None
Advisors Asset Management, Inc.2022-12-312026-08-28157,996$990,635None
Advisors Asset Management, Inc.2020-06-302026-08-28207,340$941,324None
Advisors Asset Management, Inc.2022-06-302026-08-28136,670$707,000None
Advisors Asset Management, Inc.2021-09-302026-08-28175,144$1,375,000None
Corient Private Wealth LP2026-06-302026-08-2829,745$1,342,104None
Corient Private Wealth LP2026-06-302026-08-28133,311$6,014,994None
Advisors Asset Management, Inc.2024-03-312026-08-27165,782$1,821,944None
Advisors Asset Management, Inc.2025-03-312026-08-27143,105$1,253,600None
Advisors Asset Management, Inc.2022-09-302026-08-27140,150$699,000None
Advisors Asset Management, Inc.2020-12-312026-08-27190,780$1,114,000None
Advisors Asset Management, Inc.2022-03-312026-08-27135,700$962,113None
Advisors Asset Management, Inc.2023-06-302026-08-27186,876$1,455,764None
Advisors Asset Management, Inc.2023-09-302026-08-27186,952$1,405,879None
Advisors Asset Management, Inc.2023-03-312026-08-27178,663$1,423,944None
Advisors Asset Management, Inc.2021-03-312026-08-27181,540$1,397,858None
Advisors Asset Management, Inc.2021-06-302026-08-27178,766$1,439,000None
Advisors Asset Management, Inc.2020-09-302026-08-27237,078$967,278None
Advisors Asset Management, Inc.2025-09-302026-08-27137,736$1,527,492None
Advisors Asset Management, Inc.2023-12-312026-08-27190,834$1,795,748None
Advisors Asset Management, Inc.2019-12-312026-08-26150,529$836,941None
Advisors Asset Management, Inc.2025-06-302026-08-25141,407$1,460,734None
Advisors Asset Management, Inc.2024-09-302026-08-22145,858$1,423,574None
Advisors Asset Management, Inc.2024-06-302026-08-22173,873$1,985,630None
Advisors Asset Management, Inc.2024-12-312026-08-22150,116$1,511,668None
Advisors Asset Management, Inc.2025-12-312026-08-22148,402$2,389,272None
Advisors Asset Management, Inc.2020-03-312026-08-22183,607$686,690None
Harvest Fund Management Co., Ltd2026-06-302026-08-2113,831$624,000None
Rehmann Capital Advisory Group2026-06-302026-08-2110,328$466,024None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2042,442$1,915,004None
Beacon Pointe Advisors, LLC2026-06-302026-08-196,550$295,536None
Advisors Asset Management, Inc.2019-03-312026-08-1924,599$106,022None
Advisors Asset Management, Inc.2019-09-302026-08-19105,522$470,628None
Advisors Asset Management, Inc.2019-06-302026-08-1912,679$50,082None
E-Wealth Partners, LLC2026-06-302026-08-186,400$288,768None
Corient Private Wealth LP2026-06-302026-08-18166,774$7,524,808None
Hamilton Capital, LLC2026-06-302026-08-188,402$379,098None
Empowered Funds, LLC2026-06-302026-08-1813,415$605,285None
Empowered Funds, LLC2026-06-302026-08-18357$16,108None
Transamerica Financial Advisors, LLC2026-06-302026-08-184,344$196,006None
UNITED CAPITAL FINANCIAL ADVISORS, LLC2026-06-302026-08-1832,770$1,478,582None
CAPSTONE INVESTMENT ADVISORS, LLC2026-06-302026-08-187,672$346,161None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-1813,906$627,439None
EFG International AG2026-06-302026-08-15722$32,577None
Capital Wealth Planning, LLC2026-06-302026-08-15645,530$29,126,314None
Investors Portfolio Services LLC2026-06-302026-08-1547$2,121None
Kultura Capital Management LP2026-06-302026-08-15127,900$5,770,848None

90-day public filing window, up to 50 source positions.

Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Corient Private Wealth LP ↗Corient Private Wealth LP ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.

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