United Microelectronics (ADR) (UMC)
Fabricates customer-designed chips across established logic and differentiated specialty processes.
$25.65
vs last close+0.21 (+0.85%)
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13F · 13D/G · Form 4
| Institutions | ≈ 7.09% | 176.87M ADS | |
|---|---|---|---|
| 389 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 0.21% | 5.13M ADS | |
| 15 holders · as of Sep 18, 2026 | |||
| Other | ≈ 92.70% | 2.31B ADS | |
| remainder | |||
2.49B ADS (1 ADS = 5 ordinary shares) as of Aug 21, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
The share count is from the company's Dec 2022 annual report; nothing newer is on file here.
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
13F, as of Jun 30, 2026
389 holders · 176.87M shares · 92 new positions · 224 increased · 113 reduced · 46 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 31.54M | 1.26% | +4.05M | Aug 7, 2026 |
| UBS Group AG | 11.63M | 0.47% | +3.46M | Aug 13, 2026 |
| Goldman Sachs Group Inc | 11.11M | 0.45% | +5.23M | Aug 14, 2026 |
| Bank of America Corp /DE/ | 10.18M | 0.41% | +7.58M | Aug 14, 2026 |
| Vanguard Capital Management LLC | 8.60M | 0.34% | −386.5K | Aug 13, 2026 |
| Morgan Stanley | 8.29M | 0.33% | −492.3K | Aug 13, 2026 |
| AQR Capital Management LLC | 7.72M | 0.31% | −7.00M | Aug 14, 2026 |
| Rafferty Asset Management, LLC | 7.65M | 0.31% | +2.67M | Aug 14, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 6.50% | 817.49M | 13G | Apr 29, 2026 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Sep 22, 2026 | Jen-Tsung Linofficer: Vice President | Sale | 10,000 | $163.00 | 1,172,140 |
| Sep 17, 2026 | Chitung Liuofficer: CFO & SVP | Sale | 400,000 | $145.00 | 2,639,757 |
| Sep 16, 2026 | Chitung Liuofficer: CFO & SVP | Sale | 1,200,000 | $142.33 | 3,039,757 |
| Jul 13, 2026 | Chitung Liuofficer: CFO & SVP | Sale | 1,900,000 | $154.89 | 3,322,917 |
| Jun 30, 2026 | Che-Jen Huofficer: Vice President | Sale | 10,000 | $171.30 | 3,214,080 |
House and Senate disclosures
Not reported.