UMC
United Microelectronics Corp
$23.84
+0.38 (+1.62%)
At close · Jul 14
Market Cap
$59.82B
Shares
2,509,286,774
Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 3, 4 and 5. Form 4 must be filed within two business days of the trade.
Insider Sentiment Score
Peer-relative 0–100 rank of how aggressively insiders accumulated over the trailing 90 days. See the full ranking.
20
Net buyers
-2
Net shares bought
-0.08%
Net buy value
-$296,004,000
| Date | Insider | Role | Type | Security | Shares |
|---|---|---|---|---|---|
| 2026-07-13 | Liu Chitung |
CFO & SVP |
Sell↓
Filing footnotes — Common Shares (Direct)
New Taiwan Dollars 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. |
Common Shares
|
1,900,000 |
| 2026-06-30 | HU CHE-JEN |
Vice President |
Sell↓
Filing footnotes — Common Shares (Direct)
New Taiwan Dollars Includes 828,800 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. |
Common Shares
|
10,000 |
| 2026-03-18 | Shiu Kuang-Si |
Director |
Other↑
|
No Securities Owned
|
0 |
| 2026-03-18 | Chen Lih-Juann |
Director |
Other↑
|
No Securities Owned
|
0 |
| 2026-03-18 | Shyu Jyuo-Min |
Director |
Other↑
|
No Securities Owned
|
0 |
| 2026-03-18 | Hsu Wen Hsin |
CFO |
Other↑
|
No Securities Owned
|
0 |
| 2026-03-18 | Wu Ling-Ling |
Director |
Other↑
|
No Securities Owned
|
0 |
Legend
Buy — open-market purchase
Sell — open-market sale
↑ Shares acquired
↓ Shares disposed (gift, conversion, tax…)
Showing 1–7 of 7 transactions
Key facts
CIK
1033767
CUSIP
910873405
13F (30d)
51 filings
26 filers
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