UMC insider transaction filings
UNITED MICROELECTRONICS CORP — 5 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-09-22. Screen UMC transaction legs live →
Insider transaction summary — last 90 days
2026-06-24 to 2026-09-22, from the filings listed below: 5 Form 4 filings. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 5 legs across 4 filings by 3 insiders — 3,520,000 shares, $526,433,600 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 2.
- Largest priced transaction: sale of 1,900,000 shares @ $154.89 ($294,291,000) by Liu Chitung, filed 2026-07-13.
By insider — same window
Open-market purchase/sale legs on non-derivative securities, grouped by the filing's reporting owner(s); joint filings appear once. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Insider | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|
| Liu Chitung — CFO & SVP | 3 | — | 3 legs · 3,500,000 sh · $523,090,600 | 2 |
| HU CHE-JEN — Vice President | 1 | — | 1 leg · 10,000 sh · $1,713,000 | — |
| LIN JEN-TSUNG — Vice President | 1 | — | 1 leg · 10,000 sh · $1,630,000 | — |
Recent Form 4 filings — UNITED MICROELECTRONICS CORP
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-22 | 4 | LIN JEN-TSUNG — Vice President | Sale (S): 10,000 @ $163 | EDGAR |
| 2026-09-17 | 4 | Liu Chitung — CFO & SVP | Sale (S): 1,200,000 @ $142.33 · Sale (S): 400,000 @ $145 | EDGAR |
| 2026-09-08 | 4 | Liu Chitung — CFO & SVP | Other (J): 1,000,000 @ $0 · Other (J): 1,000,000 @ $0 | EDGAR |
| 2026-07-13 | 4 | Liu Chitung — CFO & SVP | Sale (S): 1,900,000 @ $154.89 | EDGAR |
| 2026-06-30 | 4 | HU CHE-JEN — Vice President | Sale (S): 10,000 @ $171.30 | EDGAR |
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