No House member has disclosed a UMC trade since 2025.
From the House's STOCK Act reports (Senate not included). Members disclose trades, not holdings, as value ranges up to 45 days later, so amounts are estimates and “last move” is a hint at who still holds it, not a position. All recent congress trades
No insider transactions reported for UMC.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 29.5 | 2.6 | -14.0 | 45.4 | 69.8 | 22.7 | -30.1 | 4.5 | 23.2 | -7.9 | +186.9% | ||
| 2025 | -10.9 | 11.6 | 10.9 | -1.5 | 8.1 | 0.5 | -10.6 | -3.8 | 15.2 | 1.7 | -3.2 | 5.4 | +21.1% |
| 2024 | -8.9 | -0.4 | 5.3 | -4.8 | 10.4 | 3.1 | -4.5 | 4.8 | -4.0 | -18.8 | -1.3 | -3.9 | −23.3% |
| 2023 | 24.5 | 0.0 | 7.7 | -8.3 | 2.9 | -4.5 | -4.8 | -4.5 | -1.5 | 0.8 | 9.4 | 8.6 | +29.6% |
| 2022 | -16.0 | -5.6 | -1.7 | -12.7 | 10.7 | -23.2 | 0.7 | -2.8 | -16.0 | 6.5 | 27.2 | -13.4 | −44.2% |
| 2021 | 7.4 | 8.3 | -7.0 | 8.9 | -5.1 | 0.4 | 11.4 | 8.0 | 0.5 | -10.1 | 13.2 | 0.6 | +38.8% |
| 2020 | -9.7 | 2.5 | -12.5 | 15.2 | 1.2 | 4.3 | 40.2 | -4.3 | 35.3 | 10.6 | 34.5 | 18.2 | +214.6% |
| 2019 | 5.6 | -2.1 | 1.6 | 15.4 | -9.2 | 12.2 | -1.4 | -3.2 | -0.9 | 8.1 | 8.0 | 9.8 | +49.7% |
| 2018 | 2.1 | -1.2 | 7.5 | 3.1 | 4.1 | 1.4 | -0.7 | -0.4 | -7.5 | -27.1 | -3.2 | -1.6 | −25.1% |
| 2017 | 3.4 | 12.7 | -5.4 | 0.5 | 6.2 | 18.4 | -7.4 | 10.6 | 0.0 | 4.0 | -1.9 | -6.3 | +36.6% |
| 2016 | 4.3 | 5.6 | 0.5 | -9.1 | -0.5 | 5.9 | -5.0 | -1.6 | -0.5 | 2.7 | -4.2 | -3.8 | −6.9% |
| 2015 | 4.8 | 5.5 | -2.8 | -0.8 | -7.0 | -8.9 | -12.2 | -9.4 | -0.6 | 14.2 | 0.0 | 1.6 | −17.2% |
| 2014 | -1.0 | -0.5 | 3.5 | 4.8 | 5.5 | 4.8 | -9.1 | 1.4 | -10.4 | 10.1 | -1.4 | 5.1 | +11.3% |
| 2013 | -1.5 | -5.6 | -2.7 | 5.0 | 14.8 | 7.4 | -5.6 | -10.9 | 5.1 | -0.5 | -2.0 | 1.5 | +2.5% |
| 2012 | 26.6 | 0.4 | -9.9 | 9.4 | -21.3 | 2.8 | 0.0 | -6.5 | 1.0 | -8.3 | 1.6 | 4.2 | −7.0% |
| 2011 | 0.6 | -11.9 | -2.5 | 4.0 | -4.2 | -5.9 | -10.2 | -13.5 | -4.0 | 16.8 | 2.7 | -6.6 | −32.3% |
| 2010 | -9.5 | -2.3 | 9.6 | -5.6 | -6.8 | -12.1 | 4.1 | -15.2 | 8.2 | 11.2 | -7.8 | 10.9 | −18.6% |
| 2009 | -7.7 | -2.2 | 42.9 | 20.6 | 4.9 | -17.5 | 28.8 | -4.4 | 16.9 | -13.4 | 3.0 | 14.5 | +98.0% |
| 2008 | -12.1 | 5.3 | 5.6 | 2.4 | 0.3 | -15.9 | -12.0 | -5.3 | -16.3 | 25.6 | -24.9 | 6.5 | −40.8% |
| 2007 | 1.7 | -7.0 | -3.6 | 3.1 | 1.8 | 2.4 | -5.6 | 2.2 | 8.8 | -26.8 | -7.4 | -0.9 | −30.9% |
United Microelectronics Corporation operates as a semiconductor wafer foundry in Taiwan, China, Hong Kong, Japan, Korea, the United States, Europe, and internationally. It manufactures and sells integrated circuits. The company offers circuit design; mask tooling; wafer fabrication; and assembly and testing services for communication devices, consumer electronics, computer, and other applications. It also provides venture capital and marketing support; consulting and planning; energy technical; solar engineering integrated design; research and development services; and insurance services. United Microelectronics Corporation was incorporated in 1980 and is headquartered in Hsinchu City, Taiwan.
Buy / hold / sell counts