UMCNYSESemiconductors & Related DevicesFiscal year ends December 31
UNITED MICROELECTRONICS CORP
Financials through fiscal 2024, year ended Dec 31, 2024Last filing: 20-F on Apr 30, 2026
$20.08+0.26 (+1.31%)
Close on Oct 19, 2026
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
1.4%
180M of 12.59B shares
Institutional holders
362
90 new, 36 sold out
Net institutional buying
6M
In Q2 2026
Insider trades, 12 months
0 buys · 5 sales
Net sold $526.43M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| BlackRock, Inc. | 817,485,069 | 6.50% | 13G (passive) amendment | Mar 31, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of UMC | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 31,544,454 | 0.25% | $858.32M | +4,048,574 | 0.01% |
| UBS Group AG | 11,632,967 | 0.09% | $316.53M | +3,457,823 | 0.04% |
| Goldman Sachs Group Inc | 11,109,785 | 0.09% | $302.30M | +5,234,921 | 0.03% |
| Bank Of America Corp /De/ | 10,181,208 | 0.08% | $277.03M | +7,577,990 | 0.02% |
| Vanguard Capital Management LLC | 8,601,967 | 0.07% | $234.06M | −386,476 | 0.01% |
| Morgan Stanley | 8,285,573 | 0.07% | $225.45M | −492,330 | 0.01% |
| Aqr Capital Management LLC | 7,718,125 | 0.06% | $210.01M | −6,995,905 | 0.07% |
| Rafferty Asset Management, LLC | 7,653,378 | 0.06% | $208.25M | +2,669,725 | 0.47% |
| Acadian Asset Management LLC | 5,753,245 | 0.05% | $156.53K | −2,370,954 | 0.19% |
| Man Group plc | 5,593,427 | 0.04% | $152.20M | −135,474 | 0.24% |
| Citigroup Inc | 5,414,362 | 0.04% | $147.32M | +1,117,640 | 0.05% |
| Barclays PLC | 4,892,286 | 0.04% | $133.12M | +153,419 | 0.03% |
| State Street Corp | 4,878,124 | 0.04% | $132.73M | −135,085 | 0.00% |
| Neuberger Berman Group LLC | 4,134,788 | 0.03% | $111.02M | +4,020,723 | 0.07% |
| Northern Trust Corp | 3,986,872 | 0.03% | $108.48M | +787,998 | 0.01% |
| JPMorgan Chase & Co | 3,660,899 | 0.03% | $98.26M | +3,400,195 | 0.01% |
| Dimensional Fund Advisors LP | 3,218,824 | 0.03% | $87.58M | +369,087 | 0.02% |
| Two Sigma Investments, LP | 3,088,852 | 0.02% | $84.05M | −6,566,550 | 0.06% |
| Creative Planning | 2,450,717 | 0.02% | $66.68M | +86,346 | 0.04% |
| Toroso Investments, LLC | 2,355,267 | 0.02% | $64.09M | +759,116 | 0.11% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 362 | 180M | 1.4% | 90 / 131 | 111 / 36 | 44M | 38M |
| Q1 2026 | 318 | 174M | 1.4% | 73 / 143 | 56 / 22 | 59M | 23M |
| Q4 2025 | 270 | 151M | 1.2% | 61 / 119 | 55 / 24 | 38M | 20M |
| Q3 2025 | 240 | 133M | 1.1% | 41 / 81 | 88 / 38 | 13M | 31M |
| Q2 2025 | 239 | 151M | 1.2% | 47 / 85 | 72 / 36 | 20M | 23M |
| Q1 2025 | 234 | 155M | 1.2% | 29 / 102 | 67 / 45 | 30M | 35M |
| Q4 2024 | 253 | 160M | 1.3% | 45 / 67 | 102 / 55 | 35M | 36M |
| Q3 2024 | 268 | 161M | 1.3% | 53 / 105 | 70 / 19 | 59M | 7M |
| Q2 2024 | 237 | 133M | 1.1% | 32 / 89 | 72 / 34 | 17M | 33M |
| Q1 2024 | 241 | 150M | 1.2% | 32 / 89 | 76 / 38 | 35M | 15M |
| Q4 2023 | 250 | 130M | 1.0% | 56 / 84 | 70 / 19 | 22M | 22M |
| Q3 2023 | 217 | 129M | 1.0% | 28 / 82 | 71 / 29 | 17M | 15M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of UMC | Value | % of fund | As of |
|---|---|---|---|---|---|
| iShares Semiconductor ETF | 17,871,632 | 0.14% | $486.29M | 1.02% | Jun 30, 2026 |
| Direxion Daily Semiconductor Bull 3X Shares | 6,372,415 | 0.05% | $121.27M | 0.62% | Jul 31, 2026 |
| Vanguard Emerging Markets Stock Index Fund | 5,656,059 | 0.04% | $107.63M | 0.07% | Jul 31, 2026 |
| State Street(R) SPDR(R) Portfolio Emerging Markets ETF | 4,268,708 | 0.03% | $116.15M | 0.67% | Jun 30, 2026 |
| YieldMax(R) Semiconductor Portfolio Option Income ETF | 2,168,207 | 0.02% | $41.26M | 4.04% | Jul 31, 2026 |
| Vanguard Ftse All-World Ex-US Index Fund | 2,085,268 | 0.02% | $39.68M | 0.04% | Jul 31, 2026 |
| Freedom 100 Emerging Markets ETF | 1,891,076 | 0.02% | $51.46M | 1.43% | Jun 30, 2026 |
| Vanguard Global Minimum Volatility Fund | 1,077,002 | 0.01% | $20.50M | 1.02% | Jul 31, 2026 |
| Dimensional Emerging Core Equity Market ETF | 994,000 | 0.01% | $18.92M | 0.20% | Jul 31, 2026 |
| Dimensional Emerging Markets Core Equity 2 ETF | 844,666 | 0.01% | $16.07M | 0.18% | Jul 31, 2026 |
| Vanguard Total International Stock Index Fund | 830,537 | 0.01% | $15.81M | 0.00% | Jul 31, 2026 |
| Harbor International Core Fund | 682,135 | 0.01% | $12.98M | 0.56% | Jul 31, 2026 |
| Dimensional Emerging Markets Value ETF | 618,706 | 0.00% | $11.77M | 0.59% | Jul 31, 2026 |
| Matthews Asia Innovators Fund | 487,118 | 0.00% | $13.25M | 2.58% | Jun 30, 2026 |
| Emerging Markets Equity Fund | 339,341 | 0.00% | $9.23M | 0.71% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Jason Shi Wang | Chief Executive Officer, Director | 32,655,440 | 0.26% | Mar 18, 2026 |
| Ming-Chih Hsu | President & COO, Director | 8,403,220 | 0.07% | Mar 18, 2026 |
| Chia-Tsung Hung | Chairman & CSO, Director | 64,511,327 | 0.51% | Mar 18, 2026 |
| Jen-Tsung Lin | Vice President | 1,172,140 | 0.01% | Sep 22, 2026 |
| Hung-Yu Yen | CHRO & VP | 339,682 | 0.00% | Sep 18, 2026 |
| Chitung Liu | CFO & SVP | 3,789,757 | 0.03% | Sep 17, 2026 |
| Che-Jen Hu | Vice President | 3,214,080 | 0.03% | Jun 30, 2026 |
| Chia-Ao Lu | Vice President | 170,000 | 0.00% | May 7, 2026 |
| Ying-Sheng Shen | Vice President | 1,313,080 | 0.01% | May 7, 2026 |
| Oliver Chang | SVP | 4,819,289 | 0.04% | May 7, 2026 |
| Ming-Tsung Chen | Vice President | 2,484,660 | 0.02% | May 7, 2026 |
| Shu-Fen Hsu | Vice President | 1,567,080 | 0.01% | May 7, 2026 |
| Wen Yi Tan | Vice President | 650,600 | 0.01% | May 7, 2026 |
| Ming-Yu Lin | Vice President | 4,324,413 | 0.03% | May 7, 2026 |
| Jin-Shuang Chen | CHRO & VP | 2,343,080 | 0.02% | May 7, 2026 |
| Ching Yu Liao | General Counsel & VP | 732,480 | 0.01% | May 7, 2026 |
| Chung-Hsien Wu | CISO & SVP | 3,685,888 | 0.03% | May 7, 2026 |
| Yu-Chih Chuang | Vice President | 1,213,274 | 0.01% | May 7, 2026 |
| Kuei-Chun Hung | SVP | 5,879,566 | 0.05% | May 7, 2026 |
| Shih-Chieh Hsu | Vice President | 2,077,969 | 0.02% | May 7, 2026 |
| Lin-Wu Kuo | Vice President | 913,080 | 0.01% | May 7, 2026 |
| Shih-Wei Liu | Vice President | 2,183,080 | 0.02% | May 7, 2026 |
| Shih-Fang Tzou | Vice President | 1,462,188 | 0.01% | May 7, 2026 |
| Tzyy-Ming Cheng | Vice President | 2,868,080 | 0.02% | May 7, 2026 |
| Su-Lin Wang | Director | 101,000 | 0.00% | Mar 18, 2026 |
| Jyuo-Min Shyu | Director | – | – | Mar 18, 2026 |
| Wen Hsin Hsu | Director | – | – | Mar 18, 2026 |
| Lih-Juann Chen | Director | – | – | Mar 18, 2026 |
| Kuang-Si Shiu | Director | – | – | Mar 18, 2026 |
| Ling-Ling Wu | Director | – | – | Mar 18, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Jen-Tsung Lin Vice President | Sep 22, 2026 | Sale | −10,000 | $163.00 | $1.63M | 1,172,140 |
| Chitung Liu CFO & SVP | Sep 17, 2026 | Sale | −400,000 | $145.00 | $58.00M | 2,639,757 |
| Chitung Liu CFO & SVP | Sep 16, 2026 | Sale | −1,200,000 | $142.33 | $170.80M | 3,039,757 |
| Chitung Liu CFO & SVP | Sep 7, 2026 | Other | +1,000,000 | – | – | 4,322,917 |
| Chitung Liu CFO & SVP | Sep 7, 2026 | Other | −1,000,000 | – | – | 1,000,000 |
| Chitung Liu CFO & SVP | Jul 13, 2026 | Sale | −1,900,000 | $154.89 | $294.29M | 3,322,917 |
| Che-Jen Hu Vice President | Jun 30, 2026 | Sale | −10,000 | $171.30 | $1.71M | 3,214,080 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.