ASE Technology Holding Co.

ASX • XNYS

ASE Technology Holding Co. is a publicly traded company on XNYS. As of Q3 2025, 281 institutional investors hold shares in this company, with total holdings valued at $1.7B. BlackRock, Inc. is the largest holder with a position valued at $216.2M.

Overview

Overview of institutional ownership in ASX as of Q3 2025

All Institutions

Institutions: 281
Value Held: $1.7B
Shares Held: 156.2M
Avg Position: $6.2M
Median Position: $312.2K

Hedge Funds

Hedge Funds: 25
Value Held: $127.6M
Shares Held: 11.5M
Avg Position: $5.1M
Median Position: $1.3M

Biggest Investors

Institutions with the largest positions in ASX as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
B BlackRock, Inc. Institution	-	$216.2M 0.00% of portfolio	0.00% 19.5M shares	Q4 2022 Held for 2y 11m	$5.67T
LAZARD ASSET MANAGEMENT LLC Long Only Manager	Evan Lawrence Russo CEO	$199.8M 0.27% of portfolio	0.00% 18.0M shares	Q3 2025 Held for 2 months	$74.1B
BANK OF AMERICA CORP /DE/ Institution	Brian T. Moynihan CEO	$107.1M 0.01% of portfolio	0.00% 9.7M shares	Q4 2022 Held for 2y 11m	$1.33T
MORGAN STANLEY RIA/Wealth	Jed Finn CEO	$102.9M 0.01% of portfolio	0.00% 9.3M shares	Q4 2022 Held for 2y 11m	$1.65T
GOLDMAN SACHS GROUP INC Institution	David M. Solomon CEO	$91.3M 0.01% of portfolio	0.00% 8.2M shares	Q4 2022 Held for 2y 11m	$691.34B
UBS Group AG Institution	Sergio P. Ermotti CEO	$90.0M 0.02% of portfolio	0.00% 8.1M shares	Q4 2022 Held for 2y 11m	$511.54B
SCHRODER INVESTMENT MANAGEMENT GROUP RIA/Wealth	Toby James Glover CEO	$80.8M 0.06% of portfolio	0.00% 7.3M shares	Q4 2022 Held for 2y 11m	$125.97B
Cullen Capital Management, LLC Long Only Manager	James Patrick Cullen CEO	$62.3M 0.68% of portfolio	0.00% 5.6M shares	Q4 2022 Held for 2y 11m	$9.1B
F Fisher Asset Management, LLC Institution	-	$52.4M 0.02% of portfolio	0.00% 4.7M shares	Q1 2023 Held for 2y 8m	$276.29B
R Rafferty Asset Management, LLC Institution	Douglas Michael Yones CEO	$49.4M 0.16% of portfolio	0.00% 4.5M shares	Q4 2022 Held for 2y 11m	$30.8B

Net Capital Flow

Institutional buying and selling activity for ASX in Q3 2025

Traded: +$263.8M
Buyers: 186
Sellers: 96
Total Bought: +$439.1M
Total Sold: −$175.3M
Avg Position: $5.6M

Biggest Buyers

Institution	Net Bought	Current Position
LAZARD ASSET MANAGEMENT LLC Long Only Manager	+$199.8M +-149.0K shares	$199.8M 18.0M shares
BARCLAYS PLC Institution	+$32.6M +-1.7M shares	$32.6M 2.9M shares
SCHRODER INVESTMENT MANAGEMENT GROUP RIA/Wealth	+$22.4M +2.0M shares	$80.8M 7.3M shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$19.9M +1.8M shares	$35.1M 3.2M shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	+$16.7M +1.5M shares	$16.7M 1.5M shares
J JANE STREET GROUP, LLC Institution	+$13.7M +1.2M shares	$17.2M 1.6M shares
B BlackRock, Inc. Institution	+$11.8M +1.1M shares	$216.2M 19.5M shares
JPMORGAN CHASE & CO Institution	+$11.7M +1.1M shares	$32.8M 3.0M shares
BANK OF AMERICA CORP /DE/ Institution	+$9.4M +846.3K shares	$107.1M 9.7M shares
Connor, Clark & Lunn Investment Management Ltd. Long Only Manager	+$9.0M +808.8K shares	$11.3M 1.0M shares

Biggest Sellers

Institution	Net Sold	Current Position
GOLDMAN SACHS GROUP INC Institution	−$33.7M −3.0M shares	$91.3M 8.2M shares
R Rafferty Asset Management, LLC Institution	−$32.6M −2.9M shares	$49.4M 4.5M shares
UBS Group AG Institution	−$17.2M −1.6M shares	$90.0M 8.1M shares
CITIGROUP INC Institution	−$15.5M −1.4M shares	$28.2M 2.5M shares
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy	−$10.0M −906.1K shares	$8.3M 745.2K shares
B BNP PARIBAS ARBITRAGE, SA Institution	−$8.5M −763.1K shares	$6.2M 562.7K shares
Aquatic Capital Management LLC Hedge Fund•Quant	−$7.3M −660.7K shares	$5.9M 531.4K shares
C Campbell & CO Investment Adviser LLC Hedge Fund•Quant Macro	−$6.0M −543.2K shares	$1.2M 105.7K shares
H HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Institution	−$5.6M −543.8K shares	Sold Off 0 shares
C Cubist Systematic Strategies, LLC Institution	−$5.4M −491.3K shares	$1.7M 150.7K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited ASX in Q3 2025

New Positions: 32
New Value: $242.1M
Exited Positions: 31
Exited Value: $17.1M

New Positions

Institution	Position Value
LAZARD ASSET MANAGEMENT LLC Long Only Manager	$199.8M 18.0M shares
BARCLAYS PLC Institution	$32.6M 2.9M shares
S S.A.C. Capital Advisors Ltd. Institution	$3.7M 330.6K shares
S SageView Advisory Group, LLC RIA/Wealth	$1.5M 138.8K shares
V Vise Technologies, Inc. Institution	$626.1K 56.5K shares
MML INVESTORS SERVICES, LLC RIA/Wealth	$586.8K 52.9K shares
Jain Global LLC Hedge Fund•Multi-Strategy	$561.8K 50.7K shares
B Brevan Howard Capital Management LP Institution	$474.5K 42.8K shares
Weiss Asset Management LP Hedge Fund•Multi-Strategy	$406.5K 36.7K shares
S Standard Life Aberdeen plc Institution	$237.4K 21.5K shares

Exited Positions

Institution	Previous Position
H HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Institution	$5.6M 543.8K shares
Trexquant Investment LP Hedge Fund•Quant	$3.1M 299.0K shares
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	$2.0M 197.7K shares
A AXA Institution	$1.4M 137.9K shares
Quantbot Technologies LLC Hedge Fund•Quant	$1.2M 114.6K shares
E Erste Asset Management GmbH Institution	$612.4K 57.5K shares
T TWO SIGMA SECURITIES, LLC Institution	$521.2K 50.5K shares
F FOX RUN MANAGEMENT, L.L.C. Hedge Fund•Quant	$504.5K 48.8K shares
Eqis Capital Management, Inc. RIA/Wealth	$415.5K 40.2K shares
BAROMETER CAPITAL MANAGEMENT INC. Long Only Manager	$290.2K 29.1K shares

Options Activity

Institutions with the largest Call and Put options positions in ASX as of Q3 2025

Call Positions: 2
Call Value: $461.3K
Put Positions: 2
Put Value: $134.2K

Call Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$415.9K 375.0 contracts
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy	$45.5K 41.0 contracts

Put Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$134.2K 121.0 contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	- - contracts

Most Committed Institutions

Institutions with ASX as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
NINE MASTS CAPITAL Ltd Institution	Trevor Kiaran Ka-Chi Li CFO	4.34% $9.3M	0.00% 841.7K shares	Q3 2024 Held for 1y 2m	$215.0M
O Ovata Capital Management Ltd Institution	-	3.63% $10.4M	0.00% 946.8K shares	Q4 2024 Held for 11 months	$285.4M
TT International Asset Management LTD Hedge Fund•Multi-Strategy	Eric Gunn Mackay Managing Partner	1.66% $8.1M	0.00% 727.8K shares	Q4 2021 Held for 3y 11m	$485.8M
Ramirez Asset Management, Inc. Long Only Manager	Jr Samuel Ramirez CEO	0.97% $5.0M	0.00% 453.4K shares	Q4 2023 Held for 1y 11m	$516.6M
L Legacy Wealth Asset Management, LLC RIA/Wealth	Ronald Jacob Dawson CEO	0.68% $2.8M	0.00% 250.5K shares	Q4 2022 Held for 2y 11m	$405.7M
Cullen Capital Management, LLC Long Only Manager	James Patrick Cullen CEO	0.68% $62.3M	0.00% 5.6M shares	Q4 2022 Held for 2y 11m	$9.1B
LAZARD ASSET MANAGEMENT LLC Long Only Manager	Evan Lawrence Russo CEO	0.27% $199.8M	0.00% 18.0M shares	Q3 2025 Held for 2 months	$74.1B
Kiker Wealth Management, LLC RIA/Wealth	Lawrence Howard Levy Managing Partner	0.26% $512.1K	0.00% 46.2K shares	Q4 2024 Held for 11 months	$198.0M
I Investec Asset Management North America, Inc. Long Only Manager	Sangeeth Sewnath CEO	0.25% $5.5M	0.00% 496.8K shares	Q3 2024 Held for 1y 2m	$2.2B
First Affirmative Financial Network RIA/Wealth	George Richard Gay CEO	0.21% $451.2K	0.00% 40.7K shares	Q1 2023 Held for 2y 8m	$210.1M