Who owns ASX?
Institutional ownership of ASE Technology Holding Co. Ltd. from Form 13F, Q2 2026
485 institutional managers reported holding ASE Technology Holding Co. Ltd. (ASX) in Form 13F filings for Q2 2026, with 153,140,986 shares worth $6.9B. The largest reported holder was BlackRock, Inc. Managers that filed both quarters cut a net 3,987,106 shares (-2.5%). 148 opened new positions and 35 sold out.
- Funds holding
- 485
- Value held
- $6.9B
- New / sold out
- 148 / 35
- Net shares, same filers
- -2.5%
Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
Largest holders of ASX
| Fund | Value | Share of 13F holdings | Shares | Move |
|---|---|---|---|---|
| BlackRock, Inc. | $1.2B | 17.1% | 26,255,012 | Added |
| Bank of America Corp | $424M | 6.1% | 9,387,504 | Added |
| Goldman Sachs Group Inc | $375M | 5.4% | 8,300,320 | Added |
| Lazard Asset Management LLC | $360M | 5.2% | 7,970,225 | Trimmed |
| UBS Group AG | $351M | 5.1% | 7,787,150 | Trimmed |
| Morgan Stanley | $262M | 3.8% | 5,796,296 | Trimmed |
| Rafferty Asset Management, LLC | $249M | 3.6% | 5,521,348 | Added |
| American Century Companies Inc | $241M | 3.5% | 5,332,790 | Trimmed |
| JPMorgan Chase & Co | $224M | 3.5% | 5,309,786 | Added |
| Acadian Asset Management LLC | $222M | 3.2% | 4,916,882 | Trimmed |
| Fisher Asset Management, LLC | $199M | 2.9% | 4,402,301 | Trimmed |
| Citigroup Inc | $192M | 2.8% | 4,262,000 | Added |
| Man Group plc | $174M | 2.5% | 3,856,454 | Added |
| Barclays PLC | $157M | 2.3% | 3,489,880 | Added |
| Cullen Capital Management, LLC | $94.3M | 1.4% | 2,090,788 | Trimmed |
| Creative Planning | $90.2M | 1.3% | 1,998,994 | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | $81.1M | 1.2% | 1,796,967 | Unchanged |
| Dimensional Fund Advisors LP | $71.6M | 1.0% | 1,587,983 | Added |
| Earnest Partners LLC | $64.7M | 0.9% | 1,434,870 | Trimmed |
| Envestnet Asset Management Inc | $63.7M | 0.9% | 1,412,399 | Trimmed |
| Natixis Advisors, LLC | $58.9M | 0.9% | 1,305,866 | Trimmed |
| Millennium Management LLC | $56.6M | 0.8% | 1,255,430 | Added |
| Northern Trust Corp | $56.2M | 0.8% | 1,246,032 | Added |
| Connor, Clark & Lunn Investment Management Ltd. | $54.1M | 0.8% | 1,199,618 | Added |
| Mackenzie Financial Corp | $51.5M | 0.7% | 1,141,840 | Added |
Share of 13F holdings is each fund's shares as a share of the 153,140,986 ASX shares all 13F filers reported, not of shares outstanding.
Biggest buyers in Q2 2026
- BlackRock, Inc. Added+$184M
- Man Group plc Added+$158M
- Bank of America Corp Added+$115M
- JPMorgan Chase & Co Added+$112M
- Goldman Sachs Group Inc Added+$111M
- Rafferty Asset Management, LLC Added+$87.6M
- TT International Asset Management LTD Added+$39.0M
- Citigroup Inc Added+$36.2M
- Connor, Clark & Lunn Investment Management Ltd. Added+$28.6M
- Ovata Capital Management Ltd Added+$22.0M
Biggest sellers in Q2 2026
- Lazard Asset Management LLC Trimmed-$251M
- Acadian Asset Management LLC Trimmed-$111M
- Cullen Capital Management, LLC Trimmed-$86.7M
- Jane Street Group, LLC Sold out-$68.2M
- UBS Group AG Trimmed-$67.5M
- HSBC Holdings PLC Trimmed-$60.3M
- Marshall Wace, LLP Trimmed-$44.7M
- Morgan Stanley Trimmed-$42.0M
- Point72 Asset Management, L.P. Sold out-$36.3M
- Bridgewater Associates, LP Sold out-$33.6M
The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $1.3B and sold $1.2B; 145 added and 137 trimmed.
Questions about ASX ownership
- Who owns ASX stock?
- 485 institutional investment managers reported ASX positions in their Form 13F filings for Q2 2026, holding 153,140,986 shares worth $6.9B in total. BlackRock, Inc. reported the largest position.
- Are funds buying or selling ASX?
- In Q2 2026, 148 managers opened new ASX positions, 145 added, 137 trimmed and 35 sold out. Managers that filed in both quarters sold a net 3,987,106 shares.
- How current is this ASX institutional ownership data?
- It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to ASX by CUSIP. Options are left out. ASX news and filings · ASX insider trades · Top funds