How many insider trades does FilingIQ track for UMC?

FilingIQ tracks 4 Form 4 insider transactions for UMC (UNITED MICROELECTRONICS CORP), covering filings from Jun 30, 2026 onwards. 4 of those were filed in the last 90 days.

Are UMC insiders net buyers or net sellers?

Across the full Form 4 history for UMC, 0 transactions (0%) were open-market purchases and 2 (50%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.

Where does UMC insider data come from?

Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

What sector is UMC in?

UNITED MICROELECTRONICS CORP (UMC) is classified in the Technology sector, specifically Semiconductors, with a current market capitalisation of $68.28B.

UMC insider trading

NYSE Technology

UNITED MICROELECTRONICS CORP — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

Last 90 days

Buys / sells

0% / 50%

Market cap

$68.28B

About UNITED MICROELECTRONICS CORP

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.

Company website: www.umc.com

UMC insider activity at a glance

FilingIQ has scored 4 insider transactions for UMC since Jun 30, 2026. The most recent filing in our index is dated Sep 7, 2026.

Across the full history, 0 open-market purchases and 2 open-market sales were filed under transaction codes P and S respectively. Compensatory share awards (code A) and option exercises (code M) are tracked separately and not counted here.

The average FilingIQ composite score on UMC insider trades is 63.5/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live UMC trades on FilingIQ Raw filings on SEC EDGAR

Latest UMC Form 4 filings

Liu Chitung CFO & SVP

S Jul 13, 2026

Most recent disclosures. Sign up to filter by score, transaction code, or insider role.

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Top insiders trading UMC

Liu Chitung

3 trades · score 72.0

Frequently asked

How many insider trades does FilingIQ track for UMC?: FilingIQ tracks 4 Form 4 insider transactions for UMC (UNITED MICROELECTRONICS CORP), covering filings from Jun 30, 2026 onwards. 4 of those were filed in the last 90 days.
Are UMC insiders net buyers or net sellers?: Across the full Form 4 history for UMC, 0 transactions (0%) were open-market purchases and 2 (50%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does UMC insider data come from?: Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
What sector is UMC in?: UNITED MICROELECTRONICS CORP (UMC) is classified in the Technology sector, specifically Semiconductors, with a current market capitalisation of $68.28B.

Methodology & sources

Every UMC insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.