United Microelectronics Corporation (UMC) has 2 known insider and institutional holders on record. The largest holder is Liu Chitung with 150,000 shares.
Over the last 12 months, insiders have made 7 transactions in UMC stock — 0 buys (valued at RSU Award) and 0 sells (valued at RSU Award).
UMC Insider Ownership
Top Holder
Liu Chitung
150,000 shares
Buys (12 mo)
0
$0.00 value
Sells (12 mo)
0
$0.00 value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Liu Chitung |
CFO & SVP |
150,000 |
2026-03-18 |
|
| 2 |
Wang Su-lin |
Director |
101,000 |
2026-03-18 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-18 |
Chen Lih-juann |
Officer |
Unknown |
- |
- |
- |
| 2026-03-18 |
Liu Chitung |
CFO & SVP |
Unknown |
- |
- |
- |
| 2026-03-18 |
Shiu Kuang-si |
Officer |
Unknown |
- |
- |
- |
| 2026-03-18 |
Shyu Jyuo-min |
Officer |
Unknown |
- |
- |
- |
| 2026-03-18 |
Wang Su-lin |
Director |
Unknown |
- |
- |
- |
| 2026-03-18 |
Wu Ling-ling |
Officer |
Unknown |
- |
- |
- |
| 2026-03-18 |
Hsu Wen Hsin |
Officer |
Unknown |
- |
- |
- |
