United Microelectronics Corporation

UMCNYSETechnology● Active

$20.00

+$0.30(+1.52%)

Market Cap$49.9B

P/E Ratio—

52W High$23.69

52W Low$6.56

Avg Volume12.6M

Open$20.29

Beta1.59

Overview

United Microelectronics Corporation (UMC) Number of Employees – History & Annual Headcount

Annual SEC headcount, year-over-year change, and per-employee efficiency — chart and full history below.

SEC EDGAR · FMP · UMC · as of Apr 30, 2026

Latest filing snapshot

19,097

+81+0.43%vs prior year

United Microelectronics Corporation (UMC) employee data is sourced from the annual SEC 20-F filing. As of 2025, full-time employees only. Global consolidated headcount. View SEC filing ↗

SEC 20-F·Period end: 2025-12-31·Full-time · Global

Total Employees

19,097

Change (1Y)

+81

Growth % (1Y)

+0.43%

Revenue / Employee

$12.44M

Net Income / Employee

$2.18M

Market Cap

$49.9B

UMC Employee Count

2001 – 2025 · Annual · SEC filing

Source: SEC annual filings · Hover bar to view year data · Click to view original filing

Employees History

Filing Date	Period End	Employees	Change (1Y)	Growth (1Y)
2026-04-30	2025-12-31	19,097	+81	+0.43%
2025-04-24	2024-12-31	19,016	-817	-4.12%
2024-04-25	2023-12-31	19,833	-847	-4.10%
2023-04-27	2022-12-31	20,680	+939	+4.76%
2022-04-28	2021-12-31	19,741	+355	+1.83%
2021-04-29	2020-12-31	19,386	-191	-0.98%
2020-04-28	2019-12-31	19,577	-352	-1.77%
2019-04-25	2018-12-31	19,929	-147	-0.73%
2018-04-26	2017-12-31	20,076	+537	+2.75%
2017-04-13	2016-12-31	19,539	+1,081	+5.86%

▸ Source: SEC Annual Reports (Form 10-K / 20-F). Employee counts as of fiscal year end. Click the ↗ icon at the end of a row to open the original SEC filing in a new tab.

Related Companies — Employee Count

Semiconductors

#SymbolCompanyEmployeesMkt Cap

United Microelectronics CorporationYOU

Check Point Software Technologies Ltd.

Source: /stock-peers + /profile.fullTimeEmployees · Click row → /employees · Sorted by headcount · UMC peer comparison

About UMC employees

UMC Employees · Headcount

United Microelectronics Corporation (UMC) employee data is sourced from the annual SEC 20-F filing. As of 2025, United Microelectronics Corporation had 19,097 full-time employees globally. Full-time employees only. Global consolidated headcount.

United Microelectronics Corporation employs 19,097 full-time employees as of the latest filing within the Semiconductors industry. Revenue per employee stands at $12.44M, reflecting the company's operational efficiency.

United Microelectronics Corporation's workforce increased by 81 (0.43%) in 2025 compared to the prior fiscal year. The historical trend reflects the company's expansion and contraction cycles.

United Microelectronics Corporation's revenue per employee of $12.44M positions it among the notable performers in the Semiconductors sector for operational efficiency.

Revenue Financial statements Net income SEC filings Price history Forecast & ratings Ownership Earnings

Frequently Asked Questions

UMC Employees · 5 questions

As of the latest SEC 20-F filing (2025), United Microelectronics Corporation had 19,097 full-time employees globally. This figure is sourced from the company's mandatory annual disclosure to the SEC.

United Microelectronics Corporation employee counthow many employees does United Microelectronics Corporation haveUMC total employees 2025

▸ Data source: FMP /historical-employee-count · SEC EDGAR annual filings · As reported · Global consolidated headcount · As of 2026-04-30