United Microelectronics Corporation (NEW) (UMC) SEC filings
UMC SEC filings moved a median of +0.13% by the close. UMC SEC filings — 10-K, 10-Q, 8-K and the rest — each read against the price at its own news timestamp. Back to the UMC overview →
135 measured UMC SEC filing events.
Where these UMC SEC filings landedvs 134 measured UMC SEC filing reactions
| Middle 50% of UMC SEC filing reactions | -1.18% to +1.12% |
|---|---|
| Median reaction (to close) | +0.13% |
| Measured reactions | 134 |
Point-in-time · zero look-ahead
Half of the 134 UMC SEC filing events with a measured close landed between -1.18% and +1.12%; 51% closed up.
| Date | Headline | Event | 5-min | To close |
|---|---|---|---|---|
| Form 6-K UNITED MICROELECTRONICS For: Oct 13 | SEC filing · Form 6-K | +0.18% | +2.00% | |
| Form 6-K UNITED MICROELECTRONICS For: Oct 06 | SEC filing · Form 6-K | -0.28% | -1.49% | |
| Form 6-K UNITED MICROELECTRONICS For: Oct 05 | SEC filing · Form 6-K | -0.27% | +0.42% | |
| Form 6-K/A UNITED MICROELECTRONICS For: Oct 05 | SEC filing · Form 6-K | +0.11% | +1.12% | |
| Form 6-K UNITED MICROELECTRONICS For: Sep 29 | SEC filing · Form 6-K | -1.06% | +1.19% | |
| Form 6-K UNITED MICROELECTRONICS For: Sep 04 | SEC filing · Form 6-K | +1.12% | +1.42% | |
| Form 6-K UNITED MICROELECTRONICS For: Sep 02 | SEC filing · Form 6-K | +1.95% | +2.20% | |
| Form 6-K UNITED MICROELECTRONICS For: Aug 26 | SEC filing · Form 6-K | -1.05% | -2.21% | |
| Form 6-K UNITED MICROELECTRONICS For: Aug 14 | SEC filing · Form 6-K | -0.05% | +1.11% | |
| Form 6-K UNITED MICROELECTRONICS For: Aug 06 | SEC filing · Form 6-K | +0.37% | +2.13% | |
| Form 6-K UNITED MICROELECTRONICS For: Aug 05 | SEC filing · Form 6-K | -0.25% | -1.88% | |
| Form 6-K UNITED MICROELECTRONICS For: Jul 30 | SEC filing · Form 6-K | +1.25% | +7.86% | |
| Form 6-K UNITED MICROELECTRONICS For: Jul 29 | SEC filing · Form 6-K | +3.72% | +0.23% | |
| Form 6-K UNITED MICROELECTRONICS For: Jul 21 | SEC filing · Form 6-K | -1.82% | -1.21% | |
| Form 6-K UNITED MICROELECTRONICS For: Jul 15 | SEC filing · Form 6-K | -0.60% | -2.66% | |
| Form 6-K UNITED MICROELECTRONICS For: Jul 14 | SEC filing · Form 6-K | +0.17% | -1.36% | |
| Form 6-K UNITED MICROELECTRONICS For: Jul 06 | SEC filing · Form 6-K | +1.32% | +0.51% | |
| Form 6-K UNITED MICROELECTRONICS For: Jun 29 | SEC filing · Form 6-K | +0.66% | +4.44% | |
| Form 6-K UNITED MICROELECTRONICS For: Jun 23 | SEC filing · Form 6-K | +1.50% | +1.08% | |
| Form 6-K UNITED MICROELECTRONICS For: Jun 22 | SEC filing · Form 6-K | +2.25% | +1.14% | |
| Form 6-K UNITED MICROELECTRONICS For: Jun 18 | SEC filing · Form 6-K | -0.89% | +2.47% | |
| Form 6-K UNITED MICROELECTRONICS For: Jun 16 | SEC filing · Form 6-K | +0.58% | -2.92% | |
| Form 6-K UNITED MICROELECTRONICS For: Jun 05 | SEC filing · Form 6-K | -0.58% | -4.14% | |
| Form 6-K UNITED MICROELECTRONICS For: Jun 03 | SEC filing · Form 6-K | -2.37% | -0.37% | |
| Form SD UNITED MICROELECTRONICS | SEC filing · Form SD | -0.46% | -2.03% | |
| Form 6-K UNITED MICROELECTRONICS For: May 27 | SEC filing · Form 6-K | -0.02% | -3.89% | |
| Form 6-K UNITED MICROELECTRONICS For: May 22 | SEC filing · Form 6-K | +0.61% | +0.94% | |
| Form 6-K UNITED MICROELECTRONICS For: May 20 | SEC filing · Form 6-K | -0.55% | +1.44% | |
| Form 6-K UNITED MICROELECTRONICS For: May 15 | SEC filing · Form 6-K | +0.86% | +1.77% | |
| Form 6-K UNITED MICROELECTRONICS For: May 13 | SEC filing · Form 6-K | +1.42% | +0.44% | |
| Form 6-K UNITED MICROELECTRONICS For: May 12 | SEC filing · Form 6-K | +1.16% | +0.38% | |
| Form 6-K UNITED MICROELECTRONICS For: May 11 | SEC filing · Form 6-K | +1.80% | +0.13% | |
| Form 6-K UNITED MICROELECTRONICS For: May 08 | SEC filing · Form 6-K | +0.79% | +5.47% | |
| Form 6-K UNITED MICROELECTRONICS For: May 07 | SEC filing · Form 6-K | +0.00% | -0.53% | |
| Form 20-F UNITED MICROELECTRONICS For: Dec 31 | SEC filing · Form 20-F | +1.40% | +4.56% | |
| Form 6-K UNITED MICROELECTRONICS For: Apr 30 | SEC filing · Form 6-K | +1.40% | +4.56% | |
| UMC Files Form 20-F for 2025 with US Securities and Exchange Commission | Press release | +1.40% | +4.56% | |
| Form 6-K UNITED MICROELECTRONICS For: Apr 29 | SEC filing · Form 6-K | +1.42% | +3.57% | |
| Form 6-K UNITED MICROELECTRONICS For: Apr 21 | SEC filing · Form 6-K | +2.02% | +1.90% | |
| Form 6-K UNITED MICROELECTRONICS For: Apr 15 | SEC filing · Form 6-K | -0.45% | +0.40% | |
| Form 6-K UNITED MICROELECTRONICS For: Apr 08 | SEC filing · Form 6-K | +0.48% | +0.11% | |
| Form 6-K UNITED MICROELECTRONICS For: Mar 26 | SEC filing · Form 6-K | -1.48% | -1.21% | |
| Form 6-K UNITED MICROELECTRONICS For: Mar 12 | SEC filing · Form 6-K | -0.05% | -1.58% | |
| Form 6-K UNITED MICROELECTRONICS For: Mar 05 | SEC filing · Form 6-K | +0.96% | -1.01% | |
| Form 6-K UNITED MICROELECTRONICS For: Feb 25 | SEC filing · Form 6-K | +0.91% | +0.48% | |
| Form 6-K UNITED MICROELECTRONICS For: Feb 24 | SEC filing · Form 6-K | +0.28% | -0.09% | |
| Form 6-K UNITED MICROELECTRONICS For: Feb 13 | SEC filing · Form 6-K | +1.51% | +1.36% | |
| Form 6-K UNITED MICROELECTRONICS For: Feb 05 | SEC filing · Form 6-K | +0.51% | +2.15% | |
| Form 6-K UNITED MICROELECTRONICS For: Jan 28 | SEC filing · Form 6-K | +0.52% | -1.56% | |
| Form 6-K UNITED MICROELECTRONICS For: Jan 14 | SEC filing · Form 6-K | +0.70% | +2.45% | |
| Form 6-K UNITED MICROELECTRONICS For: Jan 07 | SEC filing · Form 6-K | +1.19% | +0.79% | |
| Form 6-K UNITED MICROELECTRONICS For: Dec 30 | SEC filing · Form 6-K | +0.19% | -0.25% | |
| Form 6-K UNITED MICROELECTRONICS For: Dec 17 | SEC filing · Form 6-K | +0.56% | -0.99% | |
| Form 6-K UNITED MICROELECTRONICS For: Dec 10 | SEC filing · Form 6-K | +0.13% | +0.38% | |
| Form 6-K UNITED MICROELECTRONICS For: Dec 04 | SEC filing · Form 6-K | -0.57% | +0.51% | |
| Form 6-K UNITED MICROELECTRONICS For: Nov 28 | SEC filing · Form 6-K | +0.14% | +1.50% | |
| Form 6-K UNITED MICROELECTRONICS For: Nov 20 | SEC filing · Form 6-K | -0.41% | -1.93% | |
| Form 6-K UNITED MICROELECTRONICS For: Nov 12 | SEC filing · Form 6-K | +0.07% | -0.14% | |
| Form 6-K UNITED MICROELECTRONICS For: Nov 06 | SEC filing · Form 6-K | -1.60% | -2.27% | |
| Form 6-K UNITED MICROELECTRONICS For: Oct 29 | SEC filing · Form 6-K | -5.32% | -5.26% | |
| Form 6-K UNITED MICROELECTRONICS For: Oct 28 | SEC filing · Form 6-K | -0.33% | +1.06% | |
| Form 6-K UNITED MICROELECTRONICS For: Oct 27 | SEC filing · Form 6-K | -0.07% | +0.67% | |
| Form 6-K UNITED MICROELECTRONICS For: Oct 21 | SEC filing · Form 6-K | -0.87% | -0.53% | |
| Form 6-K UNITED MICROELECTRONICS For: Oct 15 | SEC filing · Form 6-K | -1.14% | -0.27% | |
| Form 6-K UNITED MICROELECTRONICS For: Oct 07 | SEC filing · Form 6-K | -0.20% | -2.15% | |
| Form 6-K UNITED MICROELECTRONICS For: Sep 22 | SEC filing · Form 6-K | +0.84% | +1.54% | |
| Form 6-K UNITED MICROELECTRONICS For: Sep 10 | SEC filing · Form 6-K | -0.29% | -0.44% | |
| Form 6-K UNITED MICROELECTRONICS For: Sep 04 | SEC filing · Form 6-K | +0.29% | +0.73% | |
| Form 6-K UNITED MICROELECTRONICS For: Aug 13 | SEC filing · Form 6-K | -0.51% | +0.29% | |
| Form 6-K UNITED MICROELECTRONICS For: Aug 12 | SEC filing · Form 6-K | -0.15% | — | |
| Form 6-K UNITED MICROELECTRONICS For: Aug 06 | SEC filing · Form 6-K | -0.30% | +0.00% | |
| Form 6-K UNITED MICROELECTRONICS For: Jul 30 | SEC filing · Form 6-K | +0.21% | +1.94% | |
| Form 6-K UNITED MICROELECTRONICS For: Jul 28 | SEC filing · Form 6-K | +0.00% | +0.14% | |
| Form 6-K UNITED MICROELECTRONICS For: Jul 22 | SEC filing · Form 6-K | -0.41% | -0.94% | |
| Form 6-K UNITED MICROELECTRONICS For: Jul 10 | SEC filing · Form 6-K | -0.39% | -1.30% | |
| Form 6-K UNITED MICROELECTRONICS For: Jul 07 | SEC filing · Form 6-K | -0.07% | -0.26% | |
| Form 6-K UNITED MICROELECTRONICS For: Jun 30 | SEC filing · Form 6-K | -1.43% | -0.52% | |
| Form 6-K UNITED MICROELECTRONICS For: Jun 20 | SEC filing · Form 6-K | +0.12% | -0.61% | |
| Form 6-K UNITED MICROELECTRONICS For: Jun 10 | SEC filing · Form 6-K | -0.45% | +0.64% | |
| Form 6-K UNITED MICROELECTRONICS For: Jun 05 | SEC filing · Form 6-K | +0.40% | -0.27% | |
| Form 6-K UNITED MICROELECTRONICS For: Jun 04 | SEC filing · Form 6-K | -0.33% | -0.39% | |
| Form SD UNITED MICROELECTRONICS | SEC filing · Form SD | -0.45% | -1.28% | |
| Form 6-K UNITED MICROELECTRONICS For: May 28 | SEC filing · Form 6-K | -1.21% | -0.76% | |
| Form 6-K UNITED MICROELECTRONICS For: May 15 | SEC filing · Form 6-K | +0.39% | +0.77% | |
| Form 6-K UNITED MICROELECTRONICS For: May 08 | SEC filing · Form 6-K | -1.07% | -1.60% | |
| Form 20-F UNITED MICROELECTRONICS For: Dec 31 | SEC filing · Form 20-F | -0.07% | +2.37% | |
| Form 6-K UNITED MICROELECTRONICS For: Apr 24 | SEC filing · Form 6-K | -0.07% | +2.37% | |
| UMC Files Form 20-F for 2024 with US Securities and Exchange Commission | Press release | -0.07% | +2.37% | |
| Form 6-K UNITED MICROELECTRONICS For: Apr 23 | SEC filing · Form 6-K | +0.07% | -1.54% | |
| Form 6-K UNITED MICROELECTRONICS For: Apr 10 | SEC filing · Form 6-K | -0.15% | -1.21% | |
| Form 6-K UNITED MICROELECTRONICS For: Apr 01 | SEC filing · Form 6-K | +1.88% | +0.87% | |
| Form 6-K UNITED MICROELECTRONICS For: Dec 31 | SEC filing · Form 6-K | -0.15% | -1.32% | |
| Form 6-K UNITED MICROELECTRONICS For: Mar 11 | SEC filing · Form 6-K | -0.37% | -1.33% | |
| Form 6-K UNITED MICROELECTRONICS For: Feb 26 | SEC filing · Form 6-K | -0.38% | +0.15% | |
| Form 6-K UNITED MICROELECTRONICS For: Feb 11 | SEC filing · Form 6-K | +0.41% | +0.66% | |
| Form 6-K UNITED MICROELECTRONICS For: Jan 21 | SEC filing · Form 6-K | -4.03% | -2.90% | |
| Form 6-K UNITED MICROELECTRONICS For: Jan 10 | SEC filing · Form 6-K | -0.36% | +0.98% | |
| Form 6-K UNITED MICROELECTRONICS For: Dec 27 | SEC filing · Form 6-K | -0.38% | +0.00% | |
| Form S-8 UNITED MICROELECTRONICS | SEC filing · Form S-8 | +0.12% | -0.30% | |
| Form 6-K UNITED MICROELECTRONICS For: Dec 18 | SEC filing · Form 6-K | +0.37% | -1.79% | |
| Form 6-K UNITED MICROELECTRONICS For: Dec 11 | SEC filing · Form 6-K | +0.54% | +0.92% | |
| Form 6-K UNITED MICROELECTRONICS For: Nov 25 | SEC filing · Form 6-K | -0.51% | -0.87% | |
| Form 6-K UNITED MICROELECTRONICS For: Nov 14 | SEC filing · Form 6-K | -0.07% | -0.29% | |
| Form 6-K UNITED MICROELECTRONICS For: Sep 30 | SEC filing · Form 6-K | +0.29% | -0.86% | |
| Form 6-K UNITED MICROELECTRONICS For: Oct 30 | SEC filing · Form 6-K | -0.41% | -3.32% | |
| Form 6-K UNITED MICROELECTRONICS For: Oct 22 | SEC filing · Form 6-K | +0.58% | +0.78% | |
| Form 6-K UNITED MICROELECTRONICS For: Oct 09 | SEC filing · Form 6-K | -1.59% | -1.10% | |
| Form 6-K UNITED MICROELECTRONICS For: Sep 12 | SEC filing · Form 6-K | -0.63% | -0.58% | |
| Form 6-K UNITED MICROELECTRONICS For: Aug 19 | SEC filing · Form 6-K | +0.57% | +2.18% | |
| Form 6-K UNITED MICROELECTRONICS For: Jun 30 | SEC filing · Form 6-K | -0.53% | +0.00% | |
| Form 6-K UNITED MICROELECTRONICS For: Jul 31 | SEC filing · Form 6-K | +0.82% | +5.95% | |
| Form 6-K UNITED MICROELECTRONICS For: Jul 17 | SEC filing · Form 6-K | -0.18% | -2.46% | |
| Form 6-K UNITED MICROELECTRONICS For: Jun 12 | SEC filing · Form 6-K | -0.40% | +0.46% | |
| Form SD UNITED MICROELECTRONICS | SEC filing · Form SD | -0.64% | -1.28% | |
| Form 6-K UNITED MICROELECTRONICS For: May 30 | SEC filing · Form 6-K | +0.58% | +0.46% | |
| Form 6-K UNITED MICROELECTRONICS For: May 23 | SEC filing · Form 6-K | -0.36% | -1.61% | |
| Form 6-K UNITED MICROELECTRONICS For: Mar 31 | SEC filing · Form 6-K | +0.06% | +1.73% | |
| Form 20-F UNITED MICROELECTRONICS For: Dec 31 | SEC filing · Form 20-F | +0.20% | +2.10% | |
| Form 6-K UNITED MICROELECTRONICS For: Apr 25 | SEC filing · Form 6-K | +0.20% | +2.10% | |
| UMC Files Form 20-F for 2023 with US Securities and Exchange Commission | Press release | +0.20% | +2.10% | |
| Form 6-K UNITED MICROELECTRONICS For: Apr 24 | SEC filing · Form 6-K | +0.13% | +0.26% | |
| Form 6-K UNITED MICROELECTRONICS For: Apr 16 | SEC filing · Form 6-K | -0.58% | -0.52% | |
| Form 6-K UNITED MICROELECTRONICS For: Apr 03 | SEC filing · Form 6-K | -0.06% | +0.99% | |
| Form 6-K UNITED MICROELECTRONICS For: Dec 31 | SEC filing · Form 6-K | +0.12% | -0.99% | |
| Form 6-K UNITED MICROELECTRONICS For: Mar 25 | SEC filing · Form 6-K | +0.12% | -0.99% | |
| Form 6-K UNITED MICROELECTRONICS For: Mar 22 | SEC filing · Form 6-K | -0.42% | -0.97% | |
| Form 6-K UNITED MICROELECTRONICS For: Feb 27 | SEC filing · Form 6-K | -0.13% | -1.05% | |
| Form 6-K UNITED MICROELECTRONICS For: Feb 26 | SEC filing · Form 6-K | +0.40% | +0.79% | |
| Form 6-K UNITED MICROELECTRONICS For: Jan 31 | SEC filing · Form 6-K | -1.14% | -1.66% | |
| Form 6-K UNITED MICROELECTRONICS For: Jan 26 | SEC filing · Form 6-K | -0.50% | -2.61% | |
| Form 6-K UNITED MICROELECTRONICS For: Jan 25 | SEC filing · Form 6-K | -0.42% | -1.55% | |
| Form 6-K UNITED MICROELECTRONICS For: Dec 26 | SEC filing · Form 6-K | +0.62% | +1.48% | |
| Form 6-K UNITED MICROELECTRONICS For: Nov 27 | SEC filing · Form 6-K | -0.13% | +0.26% | |
| Form 6-K UNITED MICROELECTRONICS For: Sep 30 | SEC filing · Form 6-K | +0.59% | +1.05% | |
| Form 6-K UNITED MICROELECTRONICS For: Oct 25 | SEC filing · Form 6-K | -3.84% | -2.06% |
Keep exploring
More UMC: earnings → · analyst actions → · UMC overview →
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Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not. These are each name’s all-news baseline, not its SEC filings — that is what the link opens.