Companies / United Microelectronics Corp
United Microelectronics Corp
Insider flow · last 90 daysNet sells $1.71M
Financials · FY2024
Ownership
12.59B shares outstanding
Ownership
| Insiders | 0.03% | 3,214,080 |
| 10%+ / strategic | 6.49% | 817,485,069 |
| Institutions | 1.03% | 129,879,854 |
| Public float | 92.45% | 11,637,577,341 |
% of common shares outstanding (single-class filing figure). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 29
View all →| Insider | % of shares | Shares |
|---|---|---|
Hu Che-JenVice President | 0.03% | 3,214,080 |
Chang OliverSVP | — | — |
Cheng Tzyy-MingVice President | — | — |
Chen Jin-ShuangCHRO & VP | — | — |
Chen Lih-JuannDirector | — | — |
Chen Ming-TsungVice President | — | — |
Chuang Yu-ChihVice President | — | — |
Hsu Ming-ChihPresident & COO · Director | — | — |
Hsu Shih-ChiehVice President | — | — |
Hsu Shu-FenVice President | — | — |
Institutional holders 284
View all →| Holder | Value | % of shares |
|---|---|---|
| $858.32M | 0.25% | |
| $132.73M | 0.04% | |
| $132.13M | 0.12% | |
| $106.30M | 0.11% | |
| $86.71M | 0.08% | |
| $60.28M | 0.06% | |
| $44.75M | 0.04% | |
| $44.05M | 0.04% | |
| $43.32M | 0.04% | |
| $37.15M | 0.04% |
Activity
InsidersInstitutions
What insiders are doing in this stock (Form 4).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | Hu Che-Jen Executive | Sell | Common Shares | $1.71M | -10K -0.31% | 3,214,080 0.03% of shares | medium |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| BlackRock, Inc. | Passive13G/A | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| UMC | ADR | 910873405 |
| UMC | — | Y92370108 |