$24.72 · Score 63/100
0 open-market purchases and 3 sales out of the last 3 Form 4 filings scanned for UMC — open-market transactions only, sourced directly from official SEC EDGAR filings.
0
Buys
3
Sells
| Date | Insider | Ownership | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 22, 2026 | LIN JEN-TSUNG Vice President | Officer | Open Market Sale | 10,000 | $163.00 | $1.63M |
| Sep 17, 2026 | Liu Chitung CFO & SVP | Officer | Open Market Sale | 1,200,000 | $142.33 | $170.80M |
| Sep 17, 2026 | Liu Chitung CFO & SVP | Officer | Open Market Sale | 400,000 | $145.00 | $58.00M |
This information is based on official filings only and does not constitute investment advice. Insider transactions don't necessarily signal a stock's future direction — they can often stem from personal cash-flow needs, portfolio diversification, or tax planning.
