Employer · WARN Act history · Manufacturing
ArcelorMittal USA dba ArcelorMittal Indiana Harbor
877 workers across 1 WARN notice, primarily in IN - recorded in the current PlainLayoffs dataset.
- 877
- Workers cut
- 1
- WARN notice
- 1
- State
- 877
- Avg / notice
ArcelorMittal USA dba ArcelorMittal Indiana Harbor has 1 recorded WARN filing affecting 877 workers
According to WARN Act filings submitted to state workforce agencies, ArcelorMittal USA dba ArcelorMittal Indiana Harbor has 1 recorded filing covering 877 workers across 1 state, primarily IN, the 184th-largest recorded WARN footprint among 7,009 tracked employers. WARN notices cover qualifying reported events, so this record is not a complete count of the employer's workforce changes.
ArcelorMittal USA dba ArcelorMittal Indiana Harbor is a minor share of Manufacturing WARN activity — 0.4% of the sector's 211,445 workers across 776 employers, ranking #23 in Manufacturing.
DOL WARN employer filing desk
Employer ARCELORMITTA · ArcelorMittal USA dba ArcelorMittal Indiana Harbor 877 workers · 1 filings
NOTC-SINGLE · WORK-HEAVY · PHOTO-UNK · RUNWAY-UNK · STAT-SINGLE · BOOK-SINGLE · TYPE-CLOSE
- NOTC-SINGLE 1 filing
- WORK-HEAVY #184
- PHOTO-UNK No peer
- RUNWAY-UNK Runway n/a
- STAT-SINGLE IN
- BOOK-SINGLE 1 agency
- TYPE-CLOSE 1 closure
Stamps derive from filed notice_date, effective_date, workers_affected, state agency source, and filing type in this dataset, not a prediction of future layoffs.
Employer Profile
Not all layoffs appear in WARN data, see our methodology for the federal + state coverage thresholds. Latest filing: Apr 2020.
WARN Notice History
2020
East Chicago, IN · Manufacturing
Effective: Apr 12, 2020
877
workers
Filed Apr 18, 2020
Four checks on this ArcelorMittal USA dba ArcelorMittal Indiana Harbor filing
What is the largest ArcelorMittal USA dba ArcelorMittal Indiana Harbor WARN filing on record? ▼
The largest row is the facility closure filed for East Chicago, IN on Apr 18, 2020, covering 877 workers in Manufacturing.
Where were ArcelorMittal USA dba ArcelorMittal Indiana Harbor's WARN notices filed? ▼
This is a one-event record from Indiana DWD; the named location is East Chicago, not a company-wide headcount change. States represented in this record: IN.
Does ArcelorMittal USA dba ArcelorMittal Indiana Harbor's filing history show a recurring pattern? ▼
One filing cannot establish a recurring layoff cadence. It records a specific WARN-covered event and should not be read as a forecast of this employer's workforce.
How much advance notice appears in ArcelorMittal USA dba ArcelorMittal Indiana Harbor's record? ▼
No trustworthy advance-notice runway can be derived from these rows because the source dates are equal, missing, or retroactive.
See also: IN WARN filings · Manufacturing industry WARNs · WARN Act guide
Source: State WARN Act layoff registries ArcelorMittal USA dba ArcelorMittal Indiana Harbor notice history aggregated from state workforce agency filings · September 2026 A WARN filing is a required notice, not a judgment of the employer's management or finances. Coverage follows states with structured public registries; this public-record summary is not legal advice, financial advice, or employment advice.
Every figure on PlainLayoffs is rendered directly from public WARN Act filings and state workforce agency records, no number is typed in by an editor. This employer's notice history is rendered directly from state WARN Act filings. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of September 2026. A WARN filing is a legally required notice, not a judgment of a company's management or financial health; rankings here reflect filed notice volume only.