United Microelectronics Corporation 13F holders
367 funds reported a position in United Microelectronics Corporation in their 13F for the quarter ended 30 June 2026, together 180.1 million shares worth $4.90 billion. Against the quarter before, 79 opened a position, 131 added, 112 trimmed and 36 sold out; together they bought a net 5.5 million shares. The largest holders: BlackRock, Inc., UBS Group AG and Goldman Sachs Group Inc.
Funds holding367+46 on Q1 2026
Shares they held180.1Mworth $4.90 billion
Net bought on the quarter5.5M sharesabout $149.7 million at the funds' values
Funds buying to selling210 to 148opened or added, to cut or sold
Opened 79Added 131Held 40Trimmed 112Sold out 36
What each fund did in UMC against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in UMC in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
5,013 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 186 reported a position in United Microelectronics Corporation: 16 opened one, 66 added, 63 trimmed and 24 sold out, a net 6.2 million shares sold.
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 4 reported a position in United Microelectronics Corporation in a 13F for the quarter ended 30 June 2026. The largest: Two Sigma Investments, 3.1 million shares worth $84.0 million, 0.1% of its reported book. Sold out: Bridgewater Associates. In the quarter, 1 fund added or opened a position and 4 trimmed or sold out; together they sold a net 8.5 million shares, about $231.4 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Two Sigma Investments | 3,088,852 | $84.0 million | 0.1% | -6,566,550 | trimmed | 30 June 2026 | 13F |
| Millennium Management | 505,576 | $13.8 million | 0.0% | -1,264,553 | trimmed | 30 June 2026 | 13F |
| Citadel Advisors | 210,158 | $5.7 million | 0.0% | -555,164 | trimmed | 30 June 2026 | 13F |
| FMR LLC | 136,613 | $3.7 million | 0.0% | +16,465 | added | 30 June 2026 | 13F |
| Bridgewater Associates | 0 | $0 | 0.0% | -134,029 | exited | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 31,544,454 | 17.51% | $858.3 million | 0.01% | +4,048,574 | 13F |
| UBS Group AG | 11,632,967 | 6.46% | $316.5 million | 0.05% | +3,457,823 | 13F |
| Goldman Sachs Group Inc. | 11,109,785 | 6.17% | $302.3 million | 0.03% | +5,234,921 | 13F |
| Bank of America Corp. | 10,181,208 | 5.65% | $277.0 million | 0.02% | +7,577,990 | 13F |
| Vanguard Capital Management LLC | 8,601,967 | 4.78% | $234.1 million | 0.01% | -386,476 | 13F |
| Morgan Stanley | 8,285,573 | 4.60% | $225.5 million | 0.01% | -492,330 | 13F |
| AQR Capital Management LLC | 7,718,125 | 4.29% | $210.0 million | 0.07% | -6,995,905 | 13F |
| Rafferty Asset Management, LLC | 7,653,378 | 4.25% | $208.2 million | 0.47% | +2,669,725 | 13F |
| Acadian Asset Management LLC | 5,753,245 | 3.19% | $156.5 million | 0.19% | -2,370,954 | 13F |
| Man Group plc | 5,593,427 | 3.11% | $152.2 million | 0.28% | -135,474 | 13F |
| Citigroup Inc. | 5,414,362 | 3.01% | $147.3 million | 0.07% | +1,117,640 | 13F |
| Barclays PLC | 4,892,286 | 2.72% | $133.1 million | 0.04% | +153,419 | 13F |
| State Street Corp. | 4,878,124 | 2.71% | $132.7 million | 0.00% | -135,085 | 13F |
| Neuberger Berman Group LLC | 4,134,788 | 2.30% | $111.0 million | 0.07% | +4,020,723 | 13F |
| Northern Trust Corp. | 3,986,872 | 2.21% | $108.5 million | 0.01% | +787,998 | 13F |
| JPMorgan Chase & Co. | 3,660,899 | 2.03% | $98.3 million | 0.01% | +3,400,195 | 13F |
| Dimensional Fund Advisors LP | 3,218,824 | 1.79% | $87.6 million | 0.02% | +369,087 | 13F |
| Two Sigma Investments, LP | 3,088,852 | 1.71% | $84.0 million | 0.07% | -6,566,550 | 13F |
| Creative Planning | 2,450,717 | 1.36% | $66.7 million | 0.04% | +86,346 | 13F |
| Tidal Investments LLC | 2,355,267 | 1.31% | $64.1 million | 0.15% | +759,116 | 13F |
| Empowered Funds, LLC | 1,891,076 | 1.05% | $51.5 million | 0.27% | new | 13F |
| Matthews International Capital Management LLC | 1,465,694 | 0.81% | $39.9 million | 13.67% | +488,049 | 13F |
| Connor, Clark & Lunn Investment Management Ltd. | 1,342,996 | 0.75% | $36.5 million | 0.07% | +632,913 | 13F |
| Vanguard Portfolio Management LLC | 1,231,451 | 0.68% | $33.5 million | 0.00% | -1,531,631 | 13F |
| BNP Paribas Financial Markets | 1,126,943 | 0.63% | $30.7 million | 0.02% | -454,936 | 13F |
| E Fund Management Co., Ltd. | 995,790 | 0.55% | $27.1 million | 0.61% | new | 13F |
| Capital Fund Management S.a. | 897,313 | 0.50% | $24.4 million | 0.17% | +151,975 | 13F |
| Nomura Holdings Inc. | 813,901 | 0.45% | $22.1 million | 0.09% | new | 13F |
| Quantinno Capital Management LP | 791,129 | 0.44% | $21.5 million | 0.03% | +80,525 | 13F |
| BNP Paribas Asset Management Holding S.A. | 768,617 | 0.43% | $20.9 million | 0.02% | -280,753 | 13F |
| SG Americas Securities, LLC | 687,022 | 0.38% | $18.7 million | 0.01% | +587,076 | 13F |
| US Bancorp | 683,413 | 0.38% | $18.6 million | 0.02% | -132,150 | 13F |
| Mackenzie Financial Corp. | 614,123 | 0.34% | $16.7 million | 0.02% | +74,440 | 13F |
| Squarepoint Ops LLC | 603,410 | 0.34% | $16.4 million | 0.03% | +479,915 | 13F |
| Vident Advisory, LLC | 548,932 | 0.30% | $14.9 million | 0.11% | -86,323 | 13F |
| O'shaughnessy Asset Management, LLC | 516,370 | 0.29% | $14.1 million | 0.07% | +89,729 | 13F |
| Millennium Management LLC | 505,576 | 0.28% | $13.8 million | 0.01% | -1,264,553 | 13F |
| Moran Wealth Management, LLC | 500,125 | 0.28% | $13.6 million | 0.37% | -410,291 | 13F |
| Rhumbline Advisers | 493,285 | 0.27% | $13.4 million | 0.01% | -174,292 | 13F |
| Laird Norton Wetherby Trust Company, LLC | 476,903 | 0.26% | $13.0 million | 0.25% | +15,351 | 13F |
| Quadrant Capital Group LLC | 444,777 | 0.25% | $12.1 million | 0.33% | -17,878 | 13F |
| Vanguard Personalized Indexing Management, LLC | 434,448 | 0.24% | $11.8 million | 0.10% | +16,128 | 13F |
| LSV Asset Management | 434,160 | 0.24% | $11.8 million | 0.02% | -260,051 | 13F |
| Guggenheim Capital LLC | 422,818 | 0.23% | $11.5 million | 0.07% | -9,227 | 13F |
| Vanguard Fiduciary Trust Co. | 420,098 | 0.23% | $11.4 million | 0.00% | -20,469 | 13F |
| Advisors Asset Management, Inc. | 386,286 | 0.21% | $10.5 million | 0.16% | +23,198 | 13F |
| Ethic Inc. | 374,860 | 0.21% | $10.2 million | 0.13% | -68,837 | 13F |
| Nykredit A/S | 350,050 | 0.19% | $9.5 million | 0.04% | first 13F | 13F |
| First Trust Advisors LP | 345,845 | 0.19% | $9.4 million | 0.01% | -60,547 | 13F |
| Nuveen, LLC | 257,707 | 0.14% | $7.0 million | 0.00% | new | 13F |
The 50 largest of the 367 funds that reported a position in UMC in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on UMC
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 792,200 | $21.6 million | 30 June 2026 | 13F |
| Citadel Advisors | Puts | 498,400 | $13.6 million | 30 June 2026 | 13F |
| Millennium Management | Puts | 120,400 | $3.3 million | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 29 April 2026 | 13G/A | BlackRock, Inc. and 1 other | 817.5 million | 6.5% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 14 October 2026 | 100 | $22.39 | SEC |
| 13 October 2026 | 17,110 | $22.55 | SEC |
| 8 October 2026 | 109,077 | $23.31 | SEC |
| 7 October 2026 | 703,606 | $23.19 | SEC |
| 30 September 2026 | 2,744 | $24.72 | SEC |
| 29 September 2026 | 608 | $23.85 | SEC |
| 21 September 2026 | 285,374 | $24.61 | SEC |
| 18 September 2026 | 9,011 | $24.47 | SEC |
| 16 September 2026 | 915 | $21.61 | SEC |
| 15 September 2026 | 8,546 | $21.90 | SEC |
| 14 September 2026 | 1,493 | $22.64 | SEC |
| 11 September 2026 | 19,898 | $22.12 | SEC |
| 10 September 2026 | 14,746 | $22.69 | SEC |
| 9 September 2026 | 201,383 | $21.82 | SEC |
| 8 September 2026 | 78,852 | $20.77 | SEC |
| 4 September 2026 | 6,674 | $19.86 | SEC |
| 3 September 2026 | 585,183 | $19.97 | SEC |
| 2 September 2026 | 11,761 | $20.47 | SEC |
| 1 September 2026 | 183,800 | $19.88 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.