ASE Technology Ownership | Who Owns ASE Technology?

ASE Technology Ownership Summary

ASE Technology is owned by 1.11% institutional investors, and 98.89% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 0.90% of ASX shares. iShares Semiconductor ETF is the top mutual fund, with 0.44% of its assets in ASE Technology shares.

ASX Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	ASE Technology	1.11%	-	98.89%
Sector	Technology Stocks	50.63%	12.54%	36.83%
Idea	Semiconductor Stocks List	114.42%	7.19%	-21.61%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock funding, inc. /de	19.50M	0.90%	$216.24M
Morgan stanley	9.28M	0.43%	$102.88M
Lazard asset management	18.16M	0.42%	$187.61M
Goldman sachs group	8.23M	0.38%	$91.29M
Ubs group	8.12M	0.37%	$90.00M
Blackrock	14.47M	0.34%	$165.30M
Schroder investment management group	7.26M	0.34%	$80.79B
Cullen capital management	5.62M	0.26%	$62.31M
Fisher asset management	4.73M	0.22%	$52.43M
Rafferty asset management	4.46M	0.21%	$49.41M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Nine masts capital	841.69K	3.83%	$9.33M
Tt asset management	727.78K	1.56%	$8.07M
Ovata capital management	601.13K	1.35%	$6.26M
Delphi management inc /ma/	131.55K	1.35%	$1.46M
Ramirez asset management	453.42K	0.70%	$5.03M
Cullen capital management	5.62M	0.68%	$62.31M
Legacy wealth asset management	250.46K	0.68%	$2.78M
Kiker wealth management	46.17K	0.26%	$512.07K
Lazard asset management	18.16M	0.26%	$187.61M
Ninety one north america	496.80K	0.26%	$5.51M

Top Buyers

Holder	Shares	% Assets	Change
Millennium management	3.84M	0.02%	2.02M
Schroder investment management group	7.26M	0.06%	2.01M
Blackrock	14.47M	0.00%	1.94M
Renaissance	1.50M	0.02%	1.50M
Jane street group	1.55M	0.00%	1.23M

Top Sellers

Holder	Shares	% Assets	Change
Arrowstreet capital, limited partnership	-	-	-10.66M
Goldman sachs group	8.23M	0.01%	-3.04M
Rafferty asset management	4.46M	0.16%	-2.94M
Acadian asset management	2.41M	0.05%	-2.42M
Barclays	2.94M	0.01%	-1.69M

New Positions

Holder	Shares	% Assets	Change	Value
Renaissance	1.50M	0.02%	1.50M	$16.68M
National bank of canada /fi/	620.90K	0.01%	620.90K	$6.89M
Point72 hong kong	330.60K	0.17%	330.60K	$3.67M
Capital wealth planning	272.76K	0.02%	272.76K	$3.02M
Axa investment managers	179.03K	0.01%	179.03K	$1.99M

Sold Out

Holder	Change
Rakuten securities	-1.00
Federation des caisses desjardins du quebec	-14.00
High note wealth	-17.00
Perkins coie trust	-40.00
Financial gravity asset management	-70.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Sep 30, 2025	134	-51.97%	24,043,951	-85.67%	1	7.40%	82	-50.90%	35	-55.13%
Jun 30, 2025	278	-5.12%	162,239,611	-7.63%	3	22.78%	166	16.08%	78	-31.58%
Mar 31, 2025	2	-99.31%	4,206,896	-97.48%	-	0.65%	1	-99.38%	1	-98.99%
Dec 31, 2024	285	0.71%	166,690,048	5.12%	3	28.61%	155	15.67%	99	-17.50%
Sep 30, 2024	279	-1.41%	158,339,093	-1.71%	3	26.35%	132	1.54%	118	6.31%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Semiconductor ETF	9.50M	0.44%	-
Direxion Daily Semicondct Bull 3X ETF	5.81M	0.27%	-43.65K
Avantis Emerging Markets Equity ETF	3.00M	0.14%	12.77K
Schafer Cullen Int'l High Dividend ADR	2.54M	0.12%	489.97K
Acadian Global All Country Equity Cpst	1.70M	0.08%	1.70M
E Fund Asian Elite	1.60M	0.07%	1.60M
Vanguard Global Minimum Volatility Admr	1.54M	0.07%	151.80K
Acadian ACW ex-U.S. Equity Composite	1.11M	0.05%	-
Xtrackers S&P 500 Swap ETF 1C	1.01M	0.05%	-
Debeka-Aktien-Asien-ESG C	899.00K	0.04%	-

ASX Ownership FAQ

Who owns the most shares of ASE Technology?

ASE Technology’s largest shareholders are Blackrock funding, inc. /de (19.5M shares, 0.90%), Morgan stanley (9.28M shares, 0.43%), and Lazard asset management (18.16M shares, 0.42%). Together, they hold 1.75% of ASE Technology’s total shares outstanding.

Does Blackrock own ASE Technology?

Yes, BlackRock owns 0.34% of ASE Technology, totaling 14.47M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 165.3M$. In the last quarter, BlackRock increased its holdings by 1.94M shares, a 15.50% change.

Who is ASE Technology’s biggest shareholder by percentage of total assets invested?

Nine masts capital is ASE Technology’s biggest shareholder by percentage of total assets invested, with 3.83% of its assets in 841.69K ASE Technology shares, valued at 9.33M$.

Who is the top mutual fund holder of ASE Technology shares?

iShares Semiconductor ETF is the top mutual fund holder of ASE Technology shares, with 0.44% of its total shares outstanding invested in 9.5M ASE Technology shares.

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