Free Trial
→ Is Elon's empire crumbling? (From Brownstone Research) (Ad) Free UMC Stock Alerts

United Microelectronics (UMC) SEC Filings & 10K Form

United Microelectronics logo
$7.44 -0.06 (-0.73%)
Closing price 07/14/2025 03:59 PM Eastern
Extended Trading
$7.48 +0.04 (+0.54%)
As of 08:37 AM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.
Compare

Recent United Microelectronics SEC Filings

Export to Excel
DateFilerForm TypeView
07/10/2025
5:32 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
07/07/2025
5:35 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
06/30/2025
5:32 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
06/20/2025
5:16 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
06/10/2025
5:59 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
06/05/2025
5:36 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
06/04/2025
5:03 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
05/29/2025
5:05 AM		United Microelectronics (Filer)
Form SD
Specialized Disclosure Report  
05/28/2025
5:40 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
05/15/2025
5:34 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
05/08/2025
5:23 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
04/24/2025
5:22 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
04/24/2025
5:10 AM		United Microelectronics (Filer)
Form 20-F
Registration statement / Annual report / Transition report  
04/23/2025
5:05 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
04/23/2025
5:08 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
04/10/2025
5:34 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
04/01/2025
5:36 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
03/20/2025
5:03 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
03/11/2025
5:31 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
02/26/2025
5:03 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
02/11/2025
5:02 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
01/21/2025
5:03 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
12/27/2024
5:06 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
12/26/2024
12:19 PM		United Microelectronics (Filer)
Form S-8
Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans  
12/18/2024
5:02 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
12/11/2024
5:03 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
11/25/2024
5:02 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
11/14/2024
5:18 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
11/13/2024
5:04 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
10/30/2024
5:02 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
10/22/2024
5:43 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
10/09/2024
5:24 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
09/12/2024
5:26 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
08/19/2024
7:21 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
08/09/2024
5:02 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
07/31/2024
5:05 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
07/17/2024
5:37 AM		United Microelectronics (Filer)
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
(Data available from 1/1/2016 forward)


Related Companies and Tools

Related Companies
SEC Filings Tools

This page (NYSE:UMC) was last updated on 7/15/2025 by MarketBeat.com Staff
From Our Partners
INVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting Off
Right now, we’re witnessing a monumental shift in the world.
Traders Agency | Sponsored
I was wrong about Trump
I made a mistake. A mistake I feel very foolish about. After speaking with Donald Trump and some of his ...
Porter & Company | Sponsored
This Signal Only Flashes Once Every 4 Years – And It Just Triggered
This same signal has appeared twice before in the past 8 years — both times, it kicked off major moves in cryp...
Crypto Swap Profits | Sponsored
Market Panic: Trump Just Dropped a Bomb on Your Stocks
tock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...
American Alternative | Sponsored
Presidential Bombshell: $150T Resource to Be Released as soon as this Summer?
Something extraordinary is happening in Washington. For the first time in over a century, a sitting Preside...
Paradigm Press | Sponsored
The DOJ Just Paved the Way for Account Seizures
Washington is running out of money…And guess where they'll look next? When governments go broke, they take ...
Priority Gold | Sponsored
[No Brainer Gold Play]: “Show me a better investment.”
A Historic Gold Announcement Is About to Rock Wall Street? For months, sharp-eyed analysts have watched the...
Golden Portfolio | Sponsored
Google did what!?!?
A new technology has sparked a modern-day gold rush in Silicon Valley. OpenAI’s Sam Altman invested $375M. Bil...
Stansberry Research | Sponsored