Seres Therapeutics Layoffs & WARN Notices — 162 Workers Affected
All WARN Act mass layoff and plant closure notices filed by Seres Therapeutics.
Data updated
2
Total Notices
162
Workers Affected
1
States
2023
First Filing
2023
Latest Filing
Seres Therapeutics WARN Act Filings
| Company | Location | Employees | Notice Date | Type |
|---|---|---|---|---|
| Seres Therapeutics | Waltham, MA | 112 | ||
| Seres Therapeutics | Cambridge, MA | 50 |
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Seres Therapeutics Layoff FAQ
Is Seres Therapeutics laying off in 2026?
Seres Therapeutics has no 2026 WARN notices on record. The most recent WARN Act filing was in 2023.
How many layoffs has Seres Therapeutics had?
Seres Therapeutics has filed 2 WARN Act notices affecting a total of 162 workers across 1 state.
When was Seres Therapeutics's most recent layoff?
Seres Therapeutics's most recent WARN Act filing was on 2023-11-01.
What states has Seres Therapeutics laid off workers in?
Seres Therapeutics has filed WARN Act notices in: Massachusetts.
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 Seres Therapeutics 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 warnfirehose.com/pricing.
Latest Layoff Reports
SEC Filings & Hiring Signals
Cross-dataset signals for Seres Therapeutics: SEC 8-K event filings and H-1B labor condition applications often move before and after WARN notices.
8-K — 8-K
Filed 2026-07-08
8-K — 8-K
Filed 2026-07-08
8-K — 8-K
Filed 2026-06-05
8-K — 8-K
Filed 2026-06-01
8-K — 8-K
Filed 2026-05-05
21 H-1B LCA petitions filed (FY2015–FY2026) — check H-1B layoff risk →
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