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UMC
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United Microelectronics Corporation

UMC · Technology · United Microelectronics Corporation operates as a semiconductor wafer foundry in Taiwan, China, Hong Kong, Japan, Korea, the United States,…

United Microelectronics Corporation (UMC), in the Technology sector, has 3 disclosed filings on Paydirt over the trailing twelve months from 2 corporate insiders: 0 purchases and 3 sales. Filers took a median of 0 days from execution to disclosure, and the most recent trade was executed Sep 17 and filed Sep 17. The most active filer was Chitung Liu with 2 filings.

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Filings, ttm
3
0 buys · 3 sells
Traders, ttm
2
2 insiders
Volume, ttmiDollar value disclosed in the window
$524.8M
estimated for Congress, as filed for insiders
Median delay
0d
execution to disclosure
Last traded
Sep 17
Filed Sep 17
ADViAverage daily dollar volume
$306.5M
market data
Share price · 12M
$24.61 (+244.9%)
$27.53$17.21$6.90Sep 22 2025Mar 23Sep 18

Adjusted for splits and dividends.

Volume by month
$294.3M$147.1M$0Oct 2024Apr 2025Oct 2025Apr 2026Jun 2026 · sells $1.7MJul 2026 · sells $294.3MSep 2026 · sells $228.8M
Buys $0 Sells $524.8M

Estimated for Congress, as filed for insiders · by filing month · past 24 months

Who filed
CL Chitung Liu CFO & SVP 2 filings CH Che-jen Hu Vice President 1 filing
Recent filings
Chitung LiuSALE CFO & SVP $228.8M
1,600,000 sh across 2 lots
Exec Sep 16
Filed Sep 17 · 6:07 AM ET Chitung LiuSALE CFO & SVP $294.3M
1,900,000 sh × $154.89
Exec Jul 13
Filed Jul 13 · 6:04 AM ET Che-jen HuSALE Vice President $1.7M
10,000 sh × $171.30
Exec Jun 30
Filed Jun 30 · 5:30 PM ET