ASE TECHNOLOGY HOLDING -ADR (ASX) Top Institutional Shareholders
ASE TECHNOLOGY HOLDING -ADR (ASX) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $3.17B in ASX holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of ASX tracked by InsiderSet, reporting ownership valued at approximately $481.02M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $946.52M, representing an estimated gain of +96.77% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 56% of the total disclosed ASX value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Lazard Asset Management Llc, Ubs Group Ag, and several other long-term asset managers with concentrated positions in ASE TECHNOLOGY HOLDING -ADR (ASX).
This page ranks the largest institutional ASX shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
369
Total Reported Value
$3.17B
Largest Holder
Blackrock, Inc.
Largest Position
$481.02M
Insider Transactions (90d)
16
Latest Filing Quarter
Q2 2026
New Institutional Positions
69
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 22,187,464 | $481,024,223 | $946,517,214 | +$465,492,991 | +96.77% | |
| Lazard Asset Management Llc | 0.48% | 13,530,133 | $293,333,280 | $577,195,474 | +$283,862,194 | +96.77% | |
| Ubs Group Ag | 0.04% | 9,283,765 | $201,272,026 | $396,045,415 | +$194,773,389 | +96.77% | |
| Bank Of America Corp | 0.01% | 6,833,380 | $148,147,669 | $291,511,991 | +$143,364,322 | +96.77% | |
| Morgan Stanley | 0.01% | 6,728,209 | $145,867,584 | $287,025,396 | +$141,157,812 | +96.77% | |
| Goldman Sachs Group Inc | 0.02% | 5,845,151 | $126,722,869 | $249,354,142 | +$122,631,273 | +96.77% | |
| American Century Companies Inc | 0.07% | 5,827,413 | $126,338,314 | $248,597,439 | +$122,259,125 | +96.77% | |
| Fisher Asset Management, Llc | 0.04% | 4,805,083 | $104,174,198 | $204,984,841 | +$100,810,643 | +96.77% | |
| Cullen Capital Management, Llc | 0.89% | 4,011,499 | $86,969,306 | $171,130,547 | +$84,161,241 | +96.77% | |
| Rafferty Asset Management, Llc | 0.32% | 3,580,130 | $77,617,218 | $152,728,346 | +$75,111,128 | +96.77% | |
| Citigroup Inc | 0.05% | 3,459,629 | $75,004,757 | $147,587,773 | +$72,583,016 | +96.77% | |
| Barclays Plc | 0.03% | 3,371,790 | $73,100,408 | $143,840,561 | +$70,740,153 | +96.77% | |
| Jane Street Group, Llc | 0.07% | 3,144,057 | $68,163,155 | $134,125,472 | +$65,962,317 | +96.77% | |
| Hsbc Holdings Plc | 0.03% | 2,014,412 | $43,654,100 | $85,934,816 | +$42,280,716 | +96.85% | |
| Envestnet Asset Management Inc | 0.01% | 1,998,914 | $43,336,463 | $85,273,671 | +$41,937,208 | +96.77% | |
| Creative Planning | 0.03% | 1,896,278 | $41,111,304 | $80,895,219 | +$39,783,915 | +96.77% | |
| Tt International Asset Management Ltd | 5.23% | 907,813 | $40,960,523 | $38,727,303 | -$2,233,220 | -5.45% | |
| Jones Financial Companies Lllp | 0.02% | 1,836,473 | $39,484,195 | $78,343,938 | +$38,859,743 | +98.42% | |
| Dz Bank Ag Deutsche Zentral Genossenschafts Bank, Frankfurt Am Main | 0.04% | 1,795,748 | $38,931,817 | $76,606,610 | +$37,674,793 | +96.77% | |
| Earnest Partners Llc | 0.15% | 1,727,444 | $37,450,986 | $73,692,761 | +$36,241,775 | +96.77% | |
| Point72 Asset Management, L.P. | 0.06% | 1,674,519 | $36,303,572 | $71,434,981 | +$35,131,409 | +96.77% | |
| Bridgewater Associates, Lp | 0.15% | 1,547,859 | $33,557,583 | $66,031,665 | +$32,474,082 | +96.77% | |
| Dimensional Fund Advisors Lp | 0.01% | 1,399,553 | $30,342,309 | $59,704,931 | +$29,362,622 | +96.77% | |
| Northern Trust Corp | 0.00% | 1,191,923 | $25,840,891 | $50,847,435 | +$25,006,544 | +96.77% | |
| Wells Fargo & Company/Mn | 0.01% | 1,164,354 | $25,243,190 | $49,671,342 | +$24,428,152 | +96.77% | |
| Bnp Paribas Financial Markets | 0.02% | 1,063,949 | $23,066,414 | $45,388,064 | +$22,321,650 | +96.77% | |
| Vanguard Portfolio Management Llc | 0.00% | 1,048,456 | $22,730,526 | $44,727,133 | +$21,996,607 | +96.77% | |
| Schroder Investment Management Group | 0.02% | 1,074,595 | $22,448,289 | $45,842,223 | +$23,393,934 | +104.21% | |
| Marshall Wace, Llp | 0.02% | 1,000,513 | $21,691,121 | $42,681,885 | +$20,990,764 | +96.77% | |
| Millennium Management Llc | 0.02% | 938,781 | $20,352,772 | $40,048,397 | +$19,695,625 | +96.77% | |
| Mackenzie Financial Corp | 0.02% | 822,669 | $17,835,464 | $35,095,060 | +$17,259,596 | +96.77% | |
| Sei Investments Co | 0.02% | 812,019 | $17,604,432 | $34,640,731 | +$17,036,299 | +96.77% | |
| Deutsche Bank Ag\ | 0.01% | 780,691 | $16,925,381 | $33,304,278 | +$16,378,897 | +96.77% | |
| Tidal Investments Llc | 0.05% | 734,911 | $15,932,870 | $31,351,303 | +$15,418,433 | +96.77% | |
| Nine Masts Capital Ltd | 2.46% | 777,180 | $15,928,105 | $33,154,499 | +$17,226,394 | +108.15% | |
| Quantinno Capital Management Lp | 0.02% | 588,182 | $12,751,800 | $25,091,844 | +$12,340,044 | +96.77% | |
| Vident Advisory, Llc | 0.11% | 571,717 | $12,394,829 | $24,389,447 | +$11,994,618 | +96.77% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.03% | 566,006 | $12,271,010 | $24,145,816 | +$11,874,806 | +96.77% | |
| Capital Fund Management S.A. | 0.11% | 564,176 | $12,231,335 | $24,067,748 | +$11,836,413 | +96.77% | |
| Verition Fund Management Llc | 0.12% | 555,338 | $12,039,728 | $23,690,719 | +$11,650,991 | +96.77% | |
| Capital Wealth Planning, Llc | 0.06% | 532,562 | $11,545,944 | $22,719,095 | +$11,173,151 | +96.77% | |
| Royal Bank Of Canada | 0.00% | 503,877 | $10,925,000 | $21,495,393 | +$10,570,393 | +96.75% | |
| Ramirez Asset Management, Inc. | 1.29% | 447,333 | $10,707,672 | $19,083,226 | +$8,375,554 | +78.22% | |
| Arrowstreet Capital, Limited Partnership | 0.01% | 481,377 | $10,436,253 | $20,535,543 | +$10,099,290 | +96.77% | |
| Ninety One North America, Inc. | 0.44% | 451,792 | $9,794,852 | $19,273,447 | +$9,478,595 | +96.77% | |
| O'Shaughnessy Asset Management, Llc | 0.05% | 449,237 | $9,739,458 | $19,164,450 | +$9,424,992 | +96.77% | |
| Polymer Capital Management (Hk) Ltd | 1.35% | 443,215 | $9,608,901 | $18,907,552 | +$9,298,651 | +96.77% | |
| Oppenheimer Asset Management Inc. | 0.11% | 438,357 | $9,503,580 | $18,700,310 | +$9,196,730 | +96.77% | |
| Rhumbline Advisers | 0.01% | 419,946 | $9,104,423 | $17,914,896 | +$8,810,473 | +96.77% | |
| Healthcare Of Ontario Pension Plan Trust Fund | 0.01% | 412,000 | $8,932,160 | $17,575,920 | +$8,643,760 | +96.77% |
Frequently asked questions about ASX
Who owns the most ASX stock?
The largest holders of ASX are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ASE TECHNOLOGY HOLDING -ADR (ASX).
Is ASX widely held by superinvestors?
Many widely followed stocks like ASX appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly ASX is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.