ASX ASE Technology Holding Co., Ltd.
ASE Technology Holding Co., Ltd. (ASX) Institutional Ownership
What the institutions did with ASX last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended September 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| UBS Group AG | 8.5M | 18.2% |
| Fisher Asset Management, LLC | 4.1M | 8.9% |
| FMR LLC | 4.0M | 8.6% |
| BARCLAYS PLC | 3.1M | 6.6% |
| ACADIAN ASSET MANAGEMENT LLC | 2.8M | 5.9% |
| Creative Planning | 2.1M | 4.4% |
| CITIGROUP INC | 1.9M | 4.0% |
| Cullen Capital Management, LLC | 1.8M | 3.8% |
| DIMENSIONAL FUND ADVISORS LP | 1.7M | 3.7% |
| Carrhae Capital LLP | 1.5M | 3.1% |
| MACKENZIE FINANCIAL CORP | 921.4K | 2.0% |
| Ninety One UK Ltd | 688.8K | 1.5% |
| Connor, Clark & Lunn Investment Management Ltd. | 687.0K | 1.5% |
| SEI INVESTMENTS CO | 637.7K | 1.4% |
| TT International Asset Management LTD | 609.7K | 1.3% |
| Ninety One North America, Inc. | 498.3K | 1.1% |
| Ethic Inc. | 412.3K | 0.9% |
| LPL Financial LLC | 385.8K | 0.8% |
| QUADRANT CAPITAL GROUP LLC | 376.3K | 0.8% |
| Mirae Asset Global Investments Co., Ltd. | 347.8K | 0.7% |
| RHUMBLINE ADVISERS | 333.8K | 0.7% |
| Nuveen, LLC | 327.0K | 0.7% |
| Nykredit A/S | 322.4K | 0.7% |
| Larson Financial Group LLC | 295.8K | 0.6% |
| Moran Wealth Management, LLC | 293.4K | 0.6% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| FMR LLC | Increased | 160.8K | 4.0M | +3.9M |
| CITIGROUP INC | Reduced | 4.3M | 1.9M | -2.4M |
| ACADIAN ASSET MANAGEMENT LLC | Reduced | 4.9M | 2.8M | -2.2M |
| Carrhae Capital LLP | New | 0 | 1.5M | +1.5M |
| UBS Group AG | Increased | 7.8M | 8.5M | +748.6K |
| Ninety One UK Ltd | Increased | 99.7K | 688.8K | +589.1K |
| Connor, Clark & Lunn Investment Management Ltd. | Reduced | 1.2M | 687.0K | -512.6K |
| BARCLAYS PLC | Reduced | 3.5M | 3.1M | -408.6K |
| Cullen Capital Management, LLC | Reduced | 2.1M | 1.8M | -324.9K |
| TT International Asset Management LTD | Reduced | 907.8K | 609.7K | -298.2K |
| Fisher Asset Management, LLC | Reduced | 4.4M | 4.1M | -257.6K |
| Y-Intercept (Hong Kong) Ltd | New | 0 | 232.8K | +232.8K |
| MACKENZIE FINANCIAL CORP | Reduced | 1.1M | 921.4K | -220.5K |
| Gunderson Capital Management LLC | New | 0 | 209.3K | +209.3K |
| ABN AMRO INVESTMENT SOLUTIONS | Increased | 69.4K | 239.9K | +170.5K |
| Bank of New York Mellon Corp | Reduced | 227.2K | 64.6K | -162.5K |
| Candriam S.C.A. | Increased | 22.5K | 181.1K | +158.6K |
| NORDEA INVESTMENT MANAGEMENT AB | Reduced | 422.6K | 277.6K | -145.0K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 1.6M | 1.7M | +122.4K |
| Union Bancaire Privee, UBP SA | New | 0 | 114.7K | +114.7K |
| VMS Asset Management Limited | New | 0 | 114.7K | +114.7K |
| Nuveen, LLC | Increased | 213.3K | 327.0K | +113.7K |
| Russell Investments Group, Ltd. | Increased | 131.6K | 239.0K | +107.4K |
| NINE MASTS CAPITAL Ltd | Increased | 158.2K | 261.5K | +103.3K |
| BLUE JEAN FINANCIAL LLC | New | 0 | 93.7K | +93.7K |
| IMC-Chicago, LLC | Sold Out | 90.6K | 0 | -90.6K |
| BANQUE PICTET & CIE SA | Reduced | 237.0K | 146.6K | -90.4K |
| ABC ARBITRAGE SA | Sold Out | 89.5K | 0 | -89.5K |
| Dilation Capital Management LP | Increased | 197.9K | 280.2K | +82.3K |
| Creative Planning | Increased | 2.0M | 2.1M | +68.0K |
| AGF MANAGEMENT LTD | Sold Out | 59.0K | 0 | -59.0K |
| SEI INVESTMENTS CO | Reduced | 696.4K | 637.7K | -58.7K |
| LPL Financial LLC | Reduced | 440.5K | 385.8K | -54.7K |
| Thrivent Financial for Lutherans | Increased | 191.1K | 245.1K | +54.0K |
| Amundi | Reduced | 252.0K | 204.3K | -47.6K |
| J.W. COLE ADVISORS, INC. | Sold Out | 44.9K | 0 | -44.9K |
| Cornerstone Capital, Inc. | Sold Out | 44.5K | 0 | -44.5K |
| Ninety One North America, Inc. | Increased | 454.2K | 498.3K | +44.1K |
| Tuttle Capital Management, LLC | New | 0 | 42.6K | +42.6K |
| Diversify Advisory Services, LLC | Increased | 8.4K | 48.7K | +40.3K |
| DIVERSIFY WEALTH MANAGEMENT, LLC | Increased | 8.4K | 48.7K | +40.3K |
| RHUMBLINE ADVISERS | Reduced | 373.7K | 333.8K | -39.9K |
| NLB Skladi, upravljanje premozenja, d.o.o. | Increased | 105.0K | 144.5K | +39.5K |
| DEUTSCHE BANK AG\ | Reduced | 58.6K | 19.3K | -39.3K |
| Bank Pictet & Cie (Europe) AG | Reduced | 110.9K | 82.0K | -28.8K |
| Legacy Wealth Asset Management, LLC | Reduced | 135.0K | 106.4K | -28.7K |
| CogentBlue Wealth Advisors, LLC | Sold Out | 27.6K | 0 | -27.6K |
| Savant Capital, LLC | Increased | 45.7K | 72.1K | +26.4K |
| Boston Common Asset Management, LLC | Increased | 20.6K | 46.8K | +26.2K |
| Cambridge Investment Research Advisors, Inc. | Reduced | 38.5K | 13.8K | -24.6K |
| Focus Advisor Solutions, LLC | Reduced | 37.4K | 12.8K | -24.6K |
| OPPENHEIMER ASSET MANAGEMENT INC. | Reduced | 207.8K | 185.6K | -22.1K |
| Mirae Asset Global Investments Co., Ltd. | Increased | 326.4K | 347.8K | +21.3K |
| Caitong International Asset Management Co., Ltd | Reduced | 46.6K | 26.0K | -20.7K |
| Vise Technologies, Inc. | Increased | 86.1K | 106.4K | +20.3K |
| EXCHANGE TRADED CONCEPTS, LLC | Reduced | 19.8K | 1.1K | -18.7K |
| KEYBANK NATIONAL ASSOCIATION/OH | Reduced | 21.6K | 4.5K | -17.1K |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | Increased | 42.1K | 58.3K | +16.2K |
| FIL Ltd | Sold Out | 16.0K | 0 | -16.0K |
| Aubrey Capital Management Ltd | Reduced | 70.0K | 54.0K | -16.0K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.