ASE Technology Holding ASX Institutional Ownership

NYSE ASX

$36.51 +0.00 (+0.00%)

At close: Aug 21, 2026 · 4:00 PM EDT

Institutions by Trading Activity

366 Institutions

Increased 212 57.9%

Unchanged 41 11.2%

Reduced 113 30.9%

Ownership Statistics

13F · as of 31 Mar, 2026

Institutional Ownership

3.62%

▼-0.22 pp QoQ

Shares Held by Institutions

156.99Mn

of 4.34Bn outstanding

▼-4.11% QoQ

Shares Outstanding

4.34Bn

4.18Bn held outside 13F filers

Institutional Investors

366

filed 13F for Mar 2026

▲+56 vs prior quarter

Net Shares Added (QoQ)

-6.72Mn

distributed since last quarter

Value of Holdings

$5.71Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 31 Mar, 2026

ASE Technology Holding Co., Ltd. (NYSE:ASX) has 366 institutional investors that have filed 13F reports for the period ending March 2026.

Collectively, these holders controlled 3.6% of ASE Technology Holding's outstanding shares in March 2026, down from 3.8% in December 2025.
Their total shares held in ASX decreased -4.11% from the prior quarter, while the number of investors in ASE Technology Holding increased 25.77% year over year.
Of these 366 funds, 212 grew their exposure to ASE Technology Holding, 113 cut back, and 41 maintained positions.
In total, institutional investors held 156.99Mn shares in ASE Technology Holding as of March 2026, down by 6.72Mn shares quarter on quarter, and down 37.69Mn shares year over year.
As of March 31, 2026, BlackRock, Inc. held the largest stake in ASE Technology Holding with 22.19Mn shares, accounting for 0.51% of total shares outstanding.
The most significant purchases of ASX for the quarter ending March 2026 came from BlackRock, Inc. (2.73Mn), JANE STREET GROUP, LLC (2.49Mn), NATIXIS ADVISORS, LLC (1.94Mn), JONES FINANCIAL COMPANIES LLLP (1.82Mn), DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main (1.8Mn).
The largest sales of ASX for the quarter ending March 2026 came from LAZARD ASSET MANAGEMENT LLC (6.48Mn), Goldman Sachs Group Inc (6.21Mn), SCHRODER INVESTMENT MANAGEMENT GROUP (6.18Mn), Morgan Stanley (3.88Mn), Bank Of America Corp /De/ (1.94Mn).
ASE Technology Holding's 10 largest shareholders as of March 2026 include BlackRock, Inc. (22.19Mn), LAZARD ASSET MANAGEMENT LLC (13.53Mn), UBS Group AG (9.28Mn), ACADIAN ASSET MANAGEMENT LLC (7.37Mn), Bank Of America Corp /De/ (6.83Mn), Morgan Stanley (6.73Mn), Goldman Sachs Group Inc (5.85Mn), AMERICAN CENTURY COMPANIES INC (5.83Mn), Fisher Asset Management, LLC (4.81Mn), Cullen Capital Management, LLC (4.01Mn) per Business Quant data.

Form 13F Holdings

366 Institutional Holders

Report period 31 Mar, 2026

Total shares held 156.99Mn

Of outstanding 3.62%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	22,187,464	0.51%	▲2,726,484	+14.01%	$481.02Mn
2	LAZARD ASSET MANAGEMENT LLC	0001207017	13,530,133	0.31%	▼6,480,696	-32.39%	$293.33Mn
3	UBS Group AG	0001610520	9,283,765	0.21%	▲245,443	+2.72%	$201.27Mn
4	ACADIAN ASSET MANAGEMENT LLC	0000916542	7,370,434	0.17%	▲1,108,368	+17.70%	$159.77K
5	Bank Of America Corp /De/	0000070858	6,833,380	0.16%	▼1,936,538	-22.08%	$148.15Mn
6	Morgan Stanley	0000895421	6,728,209	0.15%	▼3,879,379	-36.57%	$145.87Mn
7	Goldman Sachs Group Inc	0000886982	5,845,151	0.13%	▼6,209,267	-51.51%	$126.72Mn
8	AMERICAN CENTURY COMPANIES INC	0000748054	5,827,413	0.13%	▲1,596,097	+37.72%	$126.34Mn
9	Fisher Asset Management, LLC	0000850529	4,805,083	0.11%	▲163,118	+3.51%	$104.17Mn
10	Cullen Capital Management, LLC	0001362535	4,011,499	0.09%	▼1,595,882	-28.46%	$86.97Mn
11	Rafferty Asset Management, LLC	0001389426	3,580,130	0.08%	▼1,073,774	-23.07%	$77.62Mn
12	Citigroup Inc	0000831001	3,459,629	0.08%	▲298,740	+9.45%	$75.00Mn
13	Barclays Plc	0000312069	3,371,790	0.08%	▼376,780	-10.05%	$73.10Mn
14	JANE STREET GROUP, LLC	0001595888	3,144,057	0.07%	▲2,491,640	+381.91%	$68.16Mn
15	Jpmorgan Chase & Co	0000019617	2,647,196	0.06%	▼496,399	-15.79%	$55.30Mn
16	HSBC HOLDINGS PLC	0000873630	2,014,412	0.05%	▼1,733,156	-46.25%	$43.65Mn
17	ENVESTNET ASSET MANAGEMENT INC	0001407543	1,998,914	0.05%	▼557,955	-21.82%	$43.34Mn
18	NATIXIS ADVISORS, LLC	0001018331	1,940,678	0.04%	▲1,940,678	0.00%	$42.07K
19	Creative Planning	0001540235	1,896,278	0.04%	▲526,360	+38.42%	$41.11Mn
20	JONES FINANCIAL COMPANIES LLLP	0000815917	1,836,473	0.04%	▲1,822,636	+13,172.19%	$39.48Mn

Showing 1 to 20 of 366 holders