County record, California WARN filings

San Mateo County Layoff Notices, Fiscal Year 2024-2025

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 2024-2025, newest first

49 notices, 2,598 workers. Show all years.

WARN notices in San Mateo County
EmployerCityNotice dateEffectiveWorkersTypeDays notice
Prothena Biosciences IncBrisbaneJun 2, 2025Aug 1, 202591Layoff, permanent60
WalmartSan BrunoMay 23, 2025Aug 22, 2025106Layoff, permanent91
Genentech, Inc.South San FranciscoMay 29, 2025Jul 14, 2025143Layoff, permanent46 under 60
Eikon Therapeutics Inc.MillbraeMay 21, 2025Jul 21, 202555Layoff, permanent61
PMAB-5, LLCSan MateoMay 16, 2025Jul 18, 202563Layoff, permanent63
Insitro, Inc.South San FranciscoMay 8, 2025Mar 9, 202563Layoff, permanent60 days after effective date
Pliant TherapeuticsSouth San FranciscoMay 1, 2025May 1, 202569Layoff, permanent0 under 60
NGM Biopharmaceuticals, Inc.South San FranciscoApr 29, 2025Jun 30, 202585Layoff, permanent62
57 Unitek Learning Education Group Corp.South San FranciscoApr 30, 2025Jul 3, 20251Layoff, permanent64
Pacific Biosciences of California, Inc.Menlo ParkApr 9, 2025Jun 8, 202570Layoff, permanent60
Gilead Sciences, Inc.Foster CityMar 27, 2025May 27, 2025149Layoff, permanent61
Nkarta, Inc.South San FranciscoMar 26, 2025Mar 31, 202552Layoff, permanent5 under 60
Nkarta, Inc.South San FranciscoMar 26, 2025Mar 31, 20251Layoff, permanent5 under 60
CARGO Therapeutics, Inc.San CarlosMar 18, 2025May 19, 202584Closure, permanent62
Sutro Biopharma, Inc.San CarlosMar 13, 2025Aug 1, 202562Layoff, permanent141
Sutro Biopharma, Inc.South San FranciscoMar 13, 2025Aug 1, 20253Layoff, permanent141
Penney OpCo LLC dba JCPenneySan BrunoMar 12, 2025May 17, 202582Closure, permanent66
Bristol Myers SquibbRedwood CityFeb 26, 2025Apr 22, 202557Layoff, permanent55 under 60
Kaiser Foundation HospitalsSouth San FranciscoFeb 24, 2025Apr 25, 20251Layoff, permanent60
Flagship Facility Services LLCMenlo ParkFeb 14, 2025Feb 14, 202535Layoff, permanent0 under 60
Flagship Facility Services LLCMenlo ParkFeb 14, 2025Feb 14, 202523Layoff, permanent0 under 60
Flagship Facility Services LLCMenlo ParkFeb 14, 2025Feb 14, 202519Layoff, permanent0 under 60
Flagship Facility Services LLCMenlo ParkFeb 14, 2025Feb 14, 202518Layoff, permanent0 under 60
Flagship Facility Services LLCMenlo ParkFeb 14, 2025Feb 14, 202510Layoff, permanent0 under 60
Flagship Facility Services LLCMenlo ParkFeb 14, 2025Feb 14, 20259Layoff, permanent0 under 60
Flagship Facility Services LLCMenlo ParkFeb 14, 2025Feb 14, 20258Layoff, permanent0 under 60
Flagship Facility Services LLCMenlo ParkFeb 14, 2025Feb 14, 20254Layoff, permanent0 under 60
Flagship Facility Services LLCMenlo ParkFeb 14, 2025Feb 14, 20251Layoff, permanent0 under 60
LogRhythm Inc dba ExabeamFoster CityFeb 4, 2025Feb 4, 202539Layoff, permanent0 under 60
WalmartSan BrunoFeb 5, 2025Jun 13, 202579Layoff, permanent128
CARGO Therapeutics, Inc.San CarlosJan 30, 2025Apr 1, 202581Layoff, permanent61
Kaiser Foundation HospitalsSan MateoJan 21, 2025Mar 22, 20251Layoff, permanent60
Draegers SupermarketsSan MateoJan 10, 2025Mar 10, 202571Closure, permanent59 under 60
CytomX Therapeutics, Inc.South San FranciscoJan 6, 2025Jan 17, 202546Layoff, permanent11 under 60
VisaSan MateoNov 21, 2024Jan 21, 2025192Layoff, permanent61
andMe, Inc.South San FranciscoNov 19, 2024Jan 10, 202531Closure, permanent52 under 60
Advance Stores Company, Incorporated and its subsidiarySan CarlosNov 14, 2024Mar 9, 20258Closure, permanent115
Gilead Sciences, Inc.Foster CityNov 13, 2024Mar 14, 2025104Layoff, permanent121
EquiniRedwood CityNov 8, 2024Dec 6, 202487Layoff, permanent28 under 60
VisaFoster CityNov 1, 2024Jan 3, 202526Layoff, permanent63
GoPro, Inc.San MateoOct 29, 2024Nov 8, 202473Layoff, permanent10 under 60
Astellas Gene Therapies, Inc.South San FranciscoOct 23, 2024Jan 1, 202510Layoff, permanent70
Stachs LLCSouth San FranciscoOct 16, 2024Dec 31, 202443Layoff, permanent76
Kaiser Foundation HospitalsSan BrunoSep 23, 2024Nov 22, 20241Layoff, permanent60
Astellas Gene Therapies, Inc.South San FranciscoAug 27, 2024Oct 21, 20247Layoff, permanent55 under 60
Genentech, Inc.South San FranciscoAug 22, 2024Oct 8, 202493Layoff, permanent47 under 60
GRAIL, Inc.Menlo ParkAug 13, 2024Oct 14, 2024179Layoff, permanent62
Konica Minolta Business Solutions U.S.A., Inc.Foster CityJul 29, 2024Sep 30, 202420Closure, permanent63
Exabeam, Inc.Foster CityJul 16, 2024Sep 16, 202443Layoff, permanent62

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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