Companies: 10,795·Total market cap: $144.5T
Constellium SE

Constellium SE

CSTMNYSEBasic Materials● Active
$33.77
$-0.13(-0.38%)
Market Cap$4.6B
P/E Ratio—
52W High$36.99
52W Low$12.64
Overview

Constellium SE (CSTM) 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 · CSTM · as of Feb 25, 2026

Latest filing snapshot

11,500
-500-4.17%vs prior year

Constellium SE (CSTM) employee data is sourced from the annual SEC 10-K filing. As of 2025, full-time employees only. Global consolidated headcount. View SEC filing ↗

SEC 10-K·Period end: 2025-12-31·Full-time · Global
Total Employees
11,500
Change (1Y)
-500
Growth % (1Y)
-4.17%
Revenue / Employee
$734.7K
Net Income / Employee
$23.7K
Market Cap
$4.6B

CSTM Employee Count

2013 – 2025 · Annual · SEC filing

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

Employees History

Filing DateEmployeesChange (1Y)Growth (1Y)SEC filing link
2026-02-2511,500-500-4.17%
2025-02-2812,000+0+0.00%
2024-03-1812,000-500-4.00%
2023-03-1412,500+500+4.17%
2022-03-1412,000+0+0.00%
2021-03-1712,000-1,200-9.09%
2020-03-0913,200+200+1.54%
2019-03-1113,000+1,000+8.33%
2018-03-1212,000+1,000+9.09%
2017-03-2111,000+0+0.00%

▸ 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

Aluminum
#SymbolCompanyEmployees
#1
Constellium SE
CSTM
Constellium SEYOU
11,500#2
Boise Cascade Company
BCC
Boise Cascade Company
7,670#3
Fortuna Mining Corp.
FSM
Fortuna Mining Corp.
4,961#4
Ero Copper Corp.
ERO
Ero Copper Corp.
3,690#5
Ashland Inc.
ASH
Ashland Inc.
3,200#6
Century Aluminum Company
CENX
Century Aluminum Company
2,971#7
DRDGOLD Limited
DRD
DRDGOLD Limited
893
Source: /stock-peers + /profile.fullTimeEmployees · Click row → /employees · Sorted by headcount · CSTM peer comparison

About CSTM employees

CSTM Employees · Headcount

Constellium SE (CSTM) employee data is sourced from the annual SEC 10-K filing. As of 2025, Constellium SE had 11,500 full-time employees globally. Full-time employees only. Global consolidated headcount.

Constellium SE employs 11,500 full-time employees as of the latest filing within the Aluminum industry. Revenue per employee stands at $734,696, reflecting the company's operational efficiency.

Constellium SE's workforce decreased by 500 (4.17%) in 2025 compared to the prior fiscal year. The historical trend reflects the company's expansion and contraction cycles.

Constellium SE's revenue per employee of $734,696 positions it among the notable performers in the Aluminum sector for operational efficiency.

RevenueFinancial statementsNet incomeSEC filingsPrice historyForecast & ratingsOwnershipEarnings

Frequently Asked Questions

CSTM Employees · 5 questions

As of the latest SEC 10-K filing (2025), Constellium SE had 11,500 full-time employees globally. This figure is sourced from the company's mandatory annual disclosure to the SEC.

Constellium SE employee counthow many employees does Constellium SE haveCSTM total employees 2025

▸ Data source: FMP /historical-employee-count · SEC EDGAR annual filings · As reported · Global consolidated headcount · As of 2026-02-25