Merck Layoffs & WARN Notices — 11,264 Workers Affected

Name: Merck WARN Act Layoff Notices
Creator: LaborCurrent
License: https://creativecommons.org/publicdomain/zero/1.0/

All WARN Act mass layoff and plant closure notices filed by Merck.

Data updated 2026-09-01

Total Notices

5,610

Workers Affected

States

2003

First Filing

2026

Latest Filing

Data Insights

Industry Breakdown

Workers affected by industry sector

Layoff Types

Workers affected by notice type

Merck WARN Act Filings

WARN Act layoff notices
Company	Location	Employees	Notice Date	Type	Source
Merck &	Rahway, NJ	54	2026-09-01		Agency WARN listing
Merck &	Rahway, NJ	3	2026-09-01		Agency WARN listing
Merck Sharp & Dohme	Durham, NC	147	2026-02-24	Layoff	Source document
Merck Sharp & Dohme	Durham, NC	7	2026-02-24	Layoff	Source document
Merck	Rahway, NJ	204	2026-01-20		Agency WARN listing
Merck	Rahway, NJ	204	2025-11-01		Agency WARN listing
Merck &	Rahway, NJ	58	2025-08-01		Agency WARN listing
Merck &	Riverside, PA	163	2025-03-01	Closure	Agency WARN listing
Merck &	North Wales, PA	5	2024-01-01	Layoff	Agency WARN listing
Merck & Co., Inc. ("Merck"); Merck Sharp & Dohme Corp.; Acceleron Pharma Inc. ("Acceleron")	Cambridge, MA	170	2022-03-16		Agency WARN listing
Merck &	North Wales, PA	500	2019-10-01	Layoff	Agency WARN listing
MERCK & CO INC., Varicella Bulk Manufacturing Facility	Durham, NC	150	2019-07-25	Closure	Agency WARN listing
Merck Sharp & Dohme	Palo Alto, CA	20	2019-01-22	Closure	Agency WARN listing
Merck &	Charlotte, NC	50	2017-12-05	Closure	Agency WARN listing
Merck Sharp & Dohme	North Wales, PA	1,800	2017-10-01	Closure	Agency WARN listing
Merck	Kenilworth, NJ	64	2016-11-14		Agency WARN listing
Merck &	Miami Lakes, FL	112	2016-09-15		Agency WARN listing
Merck &	North Wales, PA	148	2016-08-01		Agency WARN listing
Merck - Branchburg	Branchburg, NJ	172	2015-01-01		Agency WARN listing
Merck (Merck, Sharp and Dohme Corporation)	Whitehouse Station, NJ	50	2014-09-01		Agency WARN listing

Merck Layoff FAQ

Is Merck laying off in 2026?

Yes. Merck has filed 5 WARN Act notices in 2026 affecting 415 workers. See the filings table above for locations and dates.

How many layoffs has Merck had?

Merck has filed 35 WARN Act notices affecting a total of 11,264 workers across 8 states.

When was Merck's most recent layoff?

Merck's most recent WARN Act filing was on 2026-09-01.

What states has Merck laid off workers in?

Merck has filed WARN Act notices in: California, Florida, Georgia, Massachusetts, North Carolina, New Jersey, Pennsylvania, Washington.

What is the WARN Act?

The Worker Adjustment and Retraining Notification (WARN) Act is a federal law that requires employers with 100 or more employees to provide 60 calendar days' advance notice of plant closings and mass layoffs.

How do I get notified about Merck layoffs?

Subscribe using the form above to receive free daily email alerts whenever new WARN Act notices are filed. You can also set up custom filters and webhooks with a paid API plan at laborcurrent.com/pricing.

Latest Layoff Reports

October 2026 report September 2026 report August 2026 report

SEC Filings & Hiring Signals

Cross-dataset signals for Merck: SEC 8-K event filings and H-1B labor condition applications shown alongside the WARN notices above. They are linked to this employer by matching its name (or an SEC ticker or CIK we assign to it) — the link is an algorithmic estimate, not verified by the SEC, the Department of Labor or any state agency, and the filings are not restricted to the same period as the notices. Matching rules: methodology.

Filed 2026-08-04

Filed 2026-05-28

Filed 2026-05-22

Filed 2026-04-30

Filed 2026-02-03