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
Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q2 2026 as of | BlackRock, Inc. 13F manager | Add | ADR | $124.10M | +4.6M +16.90% | 31,544,454 0.25% of shares | high |
| Q1 2026 as of | AQR Capital Management, LLC 13F manager | Add | ADR | $47.14M | +5.2M +55.47% | 14,714,030 0.12% of shares | medium |
| Q1 2026 as of | Marshall Wace, LLP 13F manager | Trim | ADR | $-40.71M | -4.5M -95.67% | 205,414 <0.01% of shares | medium |
| Q1 2026 as of | Two Sigma Investments, LP 13F manager | Add | ADR | $35.74M | +4.0M +70.13% | 9,655,402 0.08% of shares | medium |
| Q1 2026 as of | Schroder Investment Management Group 13F manager | Trim | ADR | $-32.82M | -3.8M -92.86% | 293,095 <0.01% of shares | medium |
| Q1 2026 as of | Balyasny Asset Management L.P. 13F manager | Exit | ADR | $-15.57M | -2.0M -100.00% | 0 | medium |
| Q4 2025 as of | Bank of America Corp /De 13F manager | Trim | ADR | $-14.03M | -1.8M -24.16% | 5,603,690 0.04% of shares | medium |
| Q1 2026 as of | Rafferty Asset Management, LLC 13F manager | Trim | ADR | $-13.42M | -1.5M -23.07% | 4,983,653 0.04% 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 |