Form 4 for UMC UNITED MICROELECTRONICS CORP
Accepted 2026-09-08 06:01:10 ET · period of report 2026-09-07 · accession 0001193125-26-384273 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-09-08 06:01 | 2026-09-07 | UMC | Liu Chitung | CFO, SVP | J - Other | $0.00 | +1.00M | 4.32M | +30% | $0 | |
| I | 2026-09-08 06:01 | 2026-09-07 | UMC | Liu Chitung | CFO, SVP | J - Other | $0.00 | -1.00M | 1.00M | -50% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Shares | 2026-09-07 | J | A | 1,000,000 | $0.00 | 4,322,917 | D | — | — | (F1) On September 7, 2026, the CTBC Bank Trust distributed 1,000,000 Common Shares of the Issuer to the Reporting Person due to the expiration and termination of the trust, resulting in a change in the form of the Reporting Person's ownership from indirect to direct. (F2) Includes 1,210,000 shares of Restricted Stock Award (RSA) and a specified number of shares subject to the RSA will vest annually on December 5 from 2026 to 2029. |
| 2 | Common | Common Shares | 2026-09-07 | J | D | 1,000,000 | $0.00 | 1,000,000 | I By CTBC Bank Trust | — | — | (F1) On September 7, 2026, the CTBC Bank Trust distributed 1,000,000 Common Shares of the Issuer to the Reporting Person due to the expiration and termination of the trust, resulting in a change in the form of the Reporting Person's ownership from indirect to direct. (F3) The shares are under Trust with Discretion Reserved. |