Total Workers Affected
18
Across all WARN notices
Employer · WARN Act history · Professional & Technical Services
Mercury Systems
18 workers across 1 WARN notice, primarily in CA - recorded in the current PlainLayoffs dataset.
- 18
- Workers cut
- 1
- WARN notice
- 1
- State
- 18
- Avg / notice
Mercury Systems has 1 recorded WARN filing affecting 18 workers
According to WARN Act filings submitted to state workforce agencies, Mercury Systems has 1 recorded filing covering 18 workers across 1 state, primarily CA, the 5,664th-largest recorded WARN footprint among 6,916 tracked employers. WARN only covers mass layoffs at employers with 100+ employees, so this is a floor on the employer's actual workforce changes.
The verdict
Mercury Systems put 18 workers on WARN notice across 1 filing - the 5,664th-largest WARN footprint of 6,916 tracked employers.
- #5,664
- of 6,916 employers by workers affected
- Top 82%
- larger than 18% of tracked employers
- 1
- Recorded WARN filing
- 1
- state affected, led by CA
Where Mercury Systems Falls Among Tracked Employers
6,916 employers with a WARN filing, bucketed by total workers affected
Number of Notices
1
Recorded WARN Act filings
Latest Event Date
Jan 2026
Most recent filing
Not all layoffs appear in WARN data, see our methodology for the federal + state coverage thresholds.
Reported Layoff Scale (by Workers Affected) 30.0%
18 workers across recorded WARN events, a raw count, not adjusted for the employer's total headcount.
WARN Notice History
2026
Facility Closure
Fremont Blvd Fremont, CA · Professional & Technical Services
Effective: Jan 30, 2026
18
workers
Filed Jan 30, 2026
How Mercury Systems compares in Professional & Technical Services
| # | Employer | Workers cut | Notices | Lead state |
|---|---|---|---|---|
| 1 | 12,127 | 17 | CA | |
| 2 | Cisco Systems | 9,221 | 4 | CA |
| 3 | Salesforce | 7,406 | 4 | CA |
| 4 | STARTEK | 1,275 | 4 | VA |
| 5 | Alorica | 915 | 4 | VA |
| 6 | Charter Communications | 889 | 8 | WI |
| 7 | Intel Corporation | 865 | 6 | CA |
| 8 | Oracle America | 815 | 11 | CA |
| 9 | Mercury Systems (this page) | 18 | 1 | CA |
What this means for CA workers
Mercury Systems has 1 recorded WARN filing covering 18 workers, most recently on Jan 30, 2026.
- If you are affected, file for unemployment and contact your state's rapid-response program inside the WARN Act's 60-day notice window. What to do after a layoff
- Check whether the required notice pay was provided, the WARN Act can entitle workers to up to 60 days of pay when notice is skipped. Estimate WARN pay
- See recorded WARN notices in CA, where Mercury Systems's filings were reported. CA layoffs
WARN Act filings only capture layoffs of 50+ workers at sites of 100+ employees, so smaller reductions, contractor non-renewals, and voluntary separations are not shown here.
Reading the Mercury Systems WARN Record
Mercury Systems's single WARN Act filing in this dataset covers 18 workers, dated Jan 30, 2026. A lone filing is the most common shape in the recorded dataset, though the true worker count can run higher (why). By total workers affected, Mercury Systems ranks #411 of 630 tracked employers in CA. Among the 8 other Professional & Technical Services employers with recorded WARN filings, the median is 1,095 affected workers -- Mercury Systems's 18 sits well below that group's typical scale. Every recorded filing was reported to CA's workforce agency, in the Professional & Technical Services sector -- a single-state footprint, unlike the multi-state pattern common among larger employers.
Averaging 18 workers per notice, Mercury Systems's filings fall into a pattern that suggests targeted team or department cuts that still crossed the WARN reporting threshold. This single notice marks a discrete restructuring event rather than a sustained pattern, though workforce changes below the 50-worker WARN floor may have occurred without disclosure.
Workers on CA-based Mercury Systems notices should contact the CA workforce agency directly, response teams, severance negotiation guidance, and TAA (Trade Adjustment Assistance) screening move fastest in the days immediately following a notice. See what to do after a layoff for the full benefits timeline. This record reflects filed notices only; subsequent hiring, rescinded closures, or facility reopenings are not tracked by WARN disclosures.
Frequently Asked Questions
Is Mercury Systems laying off workers? ▼
Mercury Systems has filed 1 WARN Act notice affecting 18 workers across 1 state. The most recent notice was filed on Jan 30, 2026.
How many people has Mercury Systems laid off? ▼
According to WARN Act filings, Mercury Systems has affected 18 workers total, averaging 18 workers per notice.
What states has Mercury Systems had layoffs in? ▼
Mercury Systems has filed WARN notices in 1 state: CA.
What is a WARN Act notice? ▼
The Worker Adjustment and Retraining Notification (WARN) Act requires employers with 100+ employees to provide 60 days advance notice of plant closings and mass layoffs affecting 50 or more workers. Not all layoffs require WARN notice.
What benefits are available after a Mercury Systems layoff? ▼
Workers affected by a WARN-notified layoff may be eligible for unemployment insurance, COBRA health coverage continuation, job retraining through the Trade Adjustment Assistance program, and severance packages if offered by the employer. State workforce agencies often provide additional rapid response services.
How does Mercury Systems's layoff history compare to the industry? ▼
Mercury Systems has affected 18 workers across 1 WARN filing in the Professional & Technical Services sector. The federal WARN Act only captures layoffs affecting 50 or more workers, so actual workforce changes may be larger.
Data sourced from official state WARN-Act layoff registries. See our methodology for details. Retrieved and formatted by PlainLayoffs Editorial
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from state WARN Act filings. Consult a qualified professional before making decisions based on this data.
Download the data behind this page
The full PlainLayoffs employer roster, covering every recorded employer including Mercury Systems, is available as CSV. Underlying WARN Act filings are public records; see our methodology for the compilation method.
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 June 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.
| Publisher | PlainLayoffs |
| Sources | Public state WARN-Act layoff registries |