Upgrade to SI Premium - Free Trial

United Microelectronics (UMC)

20.87 -0.42 (1.97%)

Chart
Today 6M 1Y 5Y

Upcoming Events

- Earnings (7/29/26)

Latest Headlines

Mizuho Upgrades United Microelectronics Corp (2303:TT) (UMC) to Outperform July 21, 2026 6:14 AM - StreetInsider Form 6-K UNITED MICROELECTRONICS For: Jul 21 July 21, 2026 6:04 AM - SEC Filing Form 6-K UNITED MICROELECTRONICS For: Jul 15 July 15, 2026 6:20 AM - SEC Filing Macquarie Starts United Microelectronics Corp (2303:TT) (UMC) at Outperform July 15, 2026 2:15 AM - StreetInsider Form 6-K UNITED MICROELECTRONICS For: Jul 14 July 14, 2026 6:15 AM - SEC Filing SILITH and UMC Achieve Mass Production Milestone for Silicon Photonics July 13, 2026 9:45 PM - BizWire Form 4 UNITED MICROELECTRONICS For: Jul 13 Filed by: Liu Chitung July 13, 2026 6:05 AM - SEC Filing Bernstein SocGen on United Microelectronics (UMC): 'The Stock is Overvalued; Maintain Underperform' July 7, 2026 7:30 AM - StreetInsider Form 6-K UNITED MICROELECTRONICS For: Jul 06 July 6, 2026 6:04 AM - SEC Filing UMC net sales rise 22.85% in June 2026 year over year July 6, 2026 3:12 AM - StreetInsider UMC Reports Sales for June 2026 July 6, 2026 3:00 AM - BizWire Form 4 UNITED MICROELECTRONICS For: Jun 30 Filed by: HU CHE-JEN June 30, 2026 9:49 PM - SEC Filing Form 6-K UNITED MICROELECTRONICS For: Jun 29 June 29, 2026 6:04 AM - SEC Filing United Microelectronics Corp (2303:TT) (UMC) PT Raised to NT$140 at JPMorgan June 24, 2026 7:38 AM - StreetInsider Form 6-K UNITED MICROELECTRONICS For: Jun 23 June 23, 2026 6:04 AM - SEC Filing Form 6-K UNITED MICROELECTRONICS For: Jun 22 June 22, 2026 6:03 AM - SEC Filing Form 6-K UNITED MICROELECTRONICS For: Jun 18 June 18, 2026 6:04 AM - SEC Filing Form 6-K UNITED MICROELECTRONICS For: Jun 16 June 16, 2026 6:03 AM - SEC Filing Form 6-K UNITED MICROELECTRONICS For: Jun 05 June 5, 2026 6:04 AM - SEC Filing UMC reports 17.8% sales increase in May 2026 June 5, 2026 3:02 AM - StreetInsider UMC Reports Sales for May 2026 June 5, 2026 3:00 AM - BizWire Form 6-K UNITED MICROELECTRONICS For: Jun 03 June 3, 2026 6:05 AM - SEC Filing Form SD UNITED MICROELECTRONICS May 29, 2026 6:09 AM - SEC Filing Increasing unusual put option volume: BRUN UMC S AMBA DGXX WOLF ARE LION INFQ May 29, 2026 4:28 AM - StreetInsider BNP Paribas Exane Downgrades United Microelectronics (UMC) to Underperform May 28, 2026 7:56 AM - StreetInsider BNP Paribas Exane Downgrades United Microelectronics Corp (2303:TT) (UMC) to Underperform Citing Valuation May 28, 2026 7:56 AM - StreetInsider Form 6-K UNITED MICROELECTRONICS For: May 27 May 27, 2026 6:04 AM - SEC Filing Form 6-K UNITED MICROELECTRONICS For: May 22 May 22, 2026 6:03 AM - SEC Filing Form 6-K UNITED MICROELECTRONICS For: May 20 May 20, 2026 6:04 AM - SEC Filing Form 6-K UNITED MICROELECTRONICS For: May 15 May 15, 2026 6:28 AM - SEC Filing UMC releases 14nm FinFET platform for display driver chips May 14, 2026 5:45 AM - StreetInsider UMC Announces Release of 14nm eHV FinFET Platform, Advancing Innovation in Next-Generation Smartphone Displays May 14, 2026 2:00 AM - BizWire Form F-6EF UNITED MICROELECTRONICS Filed by: JPMorgan Chase Bank, N.A. - ADR Depositary May 13, 2026 3:25 PM - SEC Filing Form 6-K UNITED MICROELECTRONICS For: May 13 May 13, 2026 6:29 AM - SEC Filing Form 6-K UNITED MICROELECTRONICS For: May 12 May 12, 2026 6:13 AM - SEC Filing Form 6-K UNITED MICROELECTRONICS For: May 11 May 11, 2026 6:04 AM - SEC Filing Form 6-K UNITED MICROELECTRONICS For: May 08 May 8, 2026 6:09 AM - SEC Filing UMC reports April sales rise 10.8% to NT$22.66 billion May 8, 2026 2:56 AM - StreetInsider UMC Reports Sales for April 2026 May 8, 2026 2:30 AM - BizWire Form 3 UNITED MICROELECTRONICS For: May 01 Filed by: TAN WEN YI May 7, 2026 6:27 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: May 01 Filed by: LU CHIA-AO May 7, 2026 6:26 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: Apr 29 Filed by: LIAO CHING YU May 7, 2026 6:25 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: Apr 29 Filed by: CHEN JIN-SHUANG May 7, 2026 6:24 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: Apr 29 Filed by: KUO LIN-WU May 7, 2026 6:23 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: Apr 29 Filed by: LIN MING-YU May 7, 2026 6:22 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: Apr 29 Filed by: HSU SHU-FEN May 7, 2026 6:21 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: Apr 29 Filed by: LIU SHIH-WEI May 7, 2026 6:20 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: Apr 29 Filed by: SHEN YING-SHENG May 7, 2026 6:18 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: Apr 29 Filed by: HU CHE-JEN May 7, 2026 6:17 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: Apr 29 Filed by: HSU SHIH-CHIEH May 7, 2026 6:16 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: Apr 29 Filed by: CHENG TZYY-MING May 7, 2026 6:14 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: Apr 29 Filed by: TZOU SHIH-FANG May 7, 2026 6:13 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: Apr 29 Filed by: CHEN MING-TSUNG May 7, 2026 6:12 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: Apr 29 Filed by: CHUANG YU-CHIH May 7, 2026 6:10 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: Apr 29 Filed by: LIN JEN-TSUNG May 7, 2026 6:10 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: Apr 29 Filed by: CHANG OLIVER May 7, 2026 6:09 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: Apr 29 Filed by: WU CHUNG-HSIEN May 7, 2026 6:08 AM - SEC Filing Form 3 UNITED MICROELECTRONICS For: Apr 29 Filed by: HUNG KUEI-CHUN May 7, 2026 6:08 AM - SEC Filing Form 6-K UNITED MICROELECTRONICS For: May 07 May 7, 2026 6:08 AM - SEC Filing JPMorgan Upgrades United Microelectronics Corp (2303:TT) (UMC) to Neutral May 4, 2026 7:21 AM - StreetInsider United Microelectronics Corp (2303:TT) (UMC) PT Raised to NT$98 at Nomura/Instinet April 30, 2026 7:08 AM - StreetInsider UMC Files Form 20-F for 2025 with US Securities and Exchange Commission April 30, 2026 7:00 AM - BizWire Form 6-K UNITED MICROELECTRONICS For: Apr 30 April 30, 2026 6:19 AM - SEC Filing Form 20-F UNITED MICROELECTRONICS For: Dec 31 April 30, 2026 6:17 AM - SEC Filing JPMorgan Upgrades United Microelectronics Corp (2303:TT) (UMC) to Neutral April 30, 2026 3:06 AM - StreetInsider Form SCHEDULE 13G/A UNITED MICROELECTRONICS Filed by: BlackRock, Inc. April 29, 2026 11:21 AM - SEC Filing United Microelectronics (UMC) Tops Q1 EPS by 7c April 29, 2026 8:20 AM - StreetInsider UMC Reports First Quarter 2026 Results April 29, 2026 7:52 AM - BizWire Form 6-K UNITED MICROELECTRONICS For: Apr 29 April 29, 2026 6:11 AM - SEC Filing Form 6-K UNITED MICROELECTRONICS For: Apr 29 April 29, 2026 6:10 AM - SEC Filing Full Article List