United Microelectronics (UMC) relationships
United Microelectronics (UMC) is connected to 26 named shareholders, 0 other companies and 30 officers and directors, each link from an SEC filing. Its largest named shareholder is BlackRock, with 1.3% of the company (13F, Jun 30, 2026).
Largest shareholders of United Microelectronics
| Holder | % of company | Filing | As of | Accession |
|---|---|---|---|---|
| BlackRock | 1.3% | 13F | Jun 30, 2026 | 0002012383-26-003238 |
| Chia-Tsung Hung | 0.51% | Form 4 | Mar 18, 2026 | 0001193125-26-112118 |
| UBS | 0.46% | 13F | Jun 30, 2026 | 0001610520-26-000103 |
| Goldman Sachs | 0.44% | 13F | Jun 30, 2026 | 0000886982-26-000519 |
| Bank of America | 0.40% | 13F | Jun 30, 2026 | 0000070858-26-000442 |
| Vanguard | 0.34% | 13F | Jun 30, 2026 | 0002100119-26-001527 |
| Morgan Stanley | 0.33% | 13F | Jun 30, 2026 | 0000895421-26-000243 |
| AQR | 0.31% | 13F | Jun 30, 2026 | 0001167557-26-000226 |
| Rafferty Asset Management, LLC | 0.30% | 13F | Jun 30, 2026 | 0001999371-26-017909 |
| Jason Shi Wang | 0.26% | Form 4 | Mar 18, 2026 | 0001193125-26-112131 |
| ACADIAN ASSET MANAGEMENT LLC | 0.23% | 13F | Jun 30, 2026 | 0001140361-26-032657 |
| Man Group plc | 0.22% | 13F | Jun 30, 2026 | 0001637460-26-000003 |
| CITIGROUP INC | 0.22% | 13F | Jun 30, 2026 | 0000831001-26-000040 |
| Barclays | 0.19% | 13F | Jun 30, 2026 | 0000312069-26-000223 |
| State Street | 0.19% | 13F | Jun 30, 2026 | 0000093751-26-000583 |
Officers and directors of United Microelectronics
- Chia-Tsung Hung — Chairman & CSO · Director (Form 3, Mar 18, 2026)
- Jason Shi Wang — Chief Executive Officer · Director (Form 3, Mar 18, 2026)
- Ming-Chih Hsu — President & COO · Director (Form 3, Mar 18, 2026)
- Kuei-Chun Hung — SVP (Form 3, May 7, 2026)
- Oliver Chang — SVP (Form 3, May 7, 2026)
- Ming-Yu Lin — Vice President (Form 3, May 7, 2026)
- Chitung Liu — CFO & SVP (Form 4, Sep 17, 2026)
- Chung-Hsien Wu — CISO & SVP (Form 3, May 7, 2026)
- Che-Jen Hu — Vice President (Form 4, Jun 30, 2026)
- Tzyy-Ming Cheng — Vice President (Form 3, May 7, 2026)
- Ming-Tsung Chen — Vice President (Form 3, May 7, 2026)
- Jin-Shuang Chen — CHRO & VP (Form 3, May 7, 2026)
- Shih-Wei Liu — Vice President (Form 3, May 7, 2026)
- Shih-Chieh Hsu — Vice President (Form 3, May 7, 2026)
- Shu-Fen Hsu — Vice President (Form 3, May 7, 2026)
- Shih-Fang Tzou — Vice President (Form 3, May 7, 2026)
- Ying-Sheng Shen — Vice President (Form 3, May 7, 2026)
- Yu-Chih Chuang — Vice President (Form 3, May 7, 2026)
- Jen-Tsung Lin — Vice President (Form 4, Sep 22, 2026)
- Lin-Wu Kuo — Vice President (Form 3, May 7, 2026)
- Ching Yu Liao — General Counsel & VP (Form 3, May 7, 2026)
- Wen Yi Tan — Vice President (Form 3, May 7, 2026)
- Hung-Yu Yen — CHRO & VP (Form 3, Sep 18, 2026)
- Chia-Ao Lu — Vice President (Form 3, May 7, 2026)
- Su-Lin Wang — Director (Form 3, Mar 18, 2026)
- Wen Hsin Hsu — Director (Form 3, Mar 18, 2026)
- Ling-Ling Wu — Director (Form 3, Mar 18, 2026)
- Jyuo-Min Shyu — Director (Form 3, Mar 18, 2026)
- Kuang-Si Shiu — Director (Form 3, Mar 18, 2026)
- Lih-Juann Chen — Director (Form 3, Mar 18, 2026)
Map of United Microelectronics's relationships · Who owns United Microelectronics