County record, California WARN filings

San Mateo County Layoff Notices, Fiscal Year 2021-2022

Benjamin Eghbali, Esq.Legal notes by Benjamin Eghbali, Esq.

Every WARN notice filed by employers in San Mateo County since July 2014: 646 notices and 51,504 workers, searchable and sorted newest first.

Every WARN notice filed with the California EDD since July 2014: 17,562 notices, 8,284 employers, 1,453,182 workers.

Layoff notices in San Mateo County at a glance

San Mateo County employers have filed 646 WARN notices with the EDD since July 1, 2014, naming 51,504 workers. The most recent notice is dated Sep 13, 2026. 187 of the notices show fewer than 60 days between notice and effective date outside the 2020 COVID window; the 60-day rule explains what that gap can mean for the workers involved. Since the EDD began reporting industry in 2026, the sectors filing most here are Manufacturing (758 workers), Finance and Insurance (320 workers), Professional Scientific and Technical Services (261 workers).

Notices in fiscal year 2021-2022, newest first

28 notices, 1,551 workers. Show all years.

WARN notices in San Mateo County
EmployerCityNotice dateEffectiveWorkersTypeDays notice
SummerBio LLCMenlo ParkJun 14, 2022Sep 1, 2022101Closure, permanent79
Robinhood Markets, Inc.Menlo ParkApr 28, 2022Jul 1, 2022100Layoff, permanent64
Allakos Inc.Redwood CityFeb 15, 2022Feb 16, 202261Layoff, permanent1 under 60
Alexion Pharmaceuticals, Inc.South San FranciscoJan 20, 2022Apr 8, 202236Closure, permanent78
Wyndham Hotels & Resorts dba La Quinta SanSouth San FranciscoDec 16, 2021Mar 2, 202227Layoff, permanent76
Theravance Biopharma US, Inc.South SanDec 16, 2021Feb 28, 202238Layoff, permanent74
Franklin TempletonSan MateoNov 24, 2021Jan 31, 20224Layoff, permanent68
Genentech, Inc. and Genentech USA, Inc.South San FranciscoNov 3, 2021Jan 4, 202252Layoff, permanent62
Takeda Development Center America, IncBrisbaneOct 7, 2021Apr 30, 202229Closure, permanent205
Flying Food Group, LLCSouth San FranciscoOct 4, 2021Nov 1, 2021123Layoff, permanent28 under 60
Mylan Pharmaceuticals Inc.San CarlosOct 4, 2021Jan 7, 202275Closure, permanent95
Milestone Technologies, Inc.Menlo ParkOct 1, 2021Dec 1, 202181Layoff, permanent61
Theravance Biopharma US, Inc.South SanSep 28, 2021Nov 30, 2021163Layoff, permanent63
Flying Food Group, LLCSouth San FranciscoSep 13, 2021Nov 1, 2021123Layoff, type not stated49 under 60
Bristol-Myers Squibb and MyoKardia Inc.BrisbaneSep 16, 2021Nov 7, 202130Layoff, permanent52 under 60
Bristol-Myers Squibb and MyoKardia Inc.BrisbaneSep 16, 2021Oct 15, 202111Layoff, permanent29 under 60
Bristol-Myers Squibb and MyoKardia Inc.BrisbaneSep 16, 2021Sep 30, 20214Layoff, permanent14 under 60
Bristol-Myers Squibb and MyoKardia Inc.Sep 16, 2021Oct 29, 20214Layoff, permanent43 under 60
Bristol-Myers Squibb and MyoKardia Inc.BrisbaneSep 16, 2021Oct 20, 20211Layoff, permanent34 under 60
Sanofi's Principia BiopharmaSouth SanAug 31, 2021Oct 8, 202138Closure, permanent38 under 60
Bristol-Myers Squibb and MyoKardia Inc.BrisbaneAug 30, 2021Oct 20, 20215Layoff, permanent51 under 60
Bristol-Myers Squibb and MyoKardia Inc.BrisbaneAug 13, 2021Sep 30, 202114Layoff, permanent48 under 60
Bristol-Myers Squibb and MyoKardia Inc.BrisbaneAug 13, 2021Oct 15, 202110Layoff, permanent63
Bristol-Myers Squibb and MyoKardia Inc.BrisbaneAug 13, 2021Sep 30, 20214Layoff, permanent48 under 60
Flying Food Group, LLCSouth San FranciscoAug 1, 2021Oct 1, 2021119Layoff, permanent61
Bristol-Meyers Squibb and MyoKardia, Inc.BrisbaneJul 29, 2021Sep 30, 20214Layoff, permanent63
Sky Chefs Inc.BurlingameJul 28, 2021Oct 1, 2021210Layoff, permanent65
Morrison Management Specialists, Inc.San MateoJul 15, 2021Sep 30, 202184Closure, permanent77

Largest layoffs in San Mateo County since 2014

EmployerNoticesWorkersLatest
Meta Platforms, Inc.676,603May 22, 2026
Genentech, Inc.101,589Jun 25, 2026
Lucky Chances Casino31,467Dec 16, 2020
Oracle America, Inc.71,379Sep 13, 2026
Verity Health System of California, Inc.41,307May 4, 2020
Flying Food Group, LLC111,036Aug 13, 2026
Genentech, Inc. and Genentech USA, Inc.5870Nov 3, 2021
Visa5809Jul 30, 2026
Rosewood Sand Hill3758Dec 16, 2020
DPR Construction1715Mar 24, 2020
Gilead Sciences, Inc.8691Apr 30, 2026
Deliv, Inc., dba Deliv California Inc.1669May 7, 2020
GoPro, Inc.6610Oct 29, 2024
Walmart5534Jun 19, 2026
THE RITZ-CARLTON HOTEL CO LLC, DBA THE RITZ-CARLTON, HALF1507Mar 20, 2020
The Ritz-Carlton Hotel Company, LLC, dba The Ritz1493Mar 20, 2020
LeeMAH Electronics3479Sep 10, 2026
See's Candies, Inc.2434Apr 16, 2020
Cruise LLC3433Jul 3, 2025
All About Parking4426Feb 26, 2021

San Mateo County by fiscal year

Fiscal yearNoticesClosuresWorkers
2026-2027941,309
2025-20265785,840
2024-20254962,598
2023-202469224,631
2022-202313477,523
2021-20222861,551
2020-202178239,165
2019-20201162111,352
2018-20192992,096
2017-2018126774
2016-20173572,134
2015-20161671,331
2014-20151441,200

Cities in San Mateo County with notices

Local help after a layoff in San Mateo

A WARN notice is the start of a paper trail, not the end of your rights. Workers in San Mateo bring WARN back-pay claims in the Superior Court of the county, and the agency routes for the questions that usually travel with a layoff are the same statewide: unpaid final wages and vacation payout go to the Labor Commissioner, discrimination in who was selected goes to the Civil Rights Department (three years to file) or the EEOC (300 days). Our San Mateo employment law page covers the local courts, agencies and deadlines. Free, confidential review: (800) 371-3088.

Source: California EDD WARN reports, July 2014 to Oct 27, 2026. County and city are as stated on the notice; for 2014 to 2017 filings, where the EDD listed only a city, the county is assigned from that city. Back to the layoff tracker.

About this data: Notices come from the California Employment Development Department WARN reports (fiscal years 2014-2015 to today) and are reloaded from the EDD every Tuesday and Thursday. Employer names appear as the employer wrote them on the notice, grouped where the names clearly refer to the same company. A notice is not a finding that any law was broken. This page is general information, not legal advice about your situation.

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